风口上的吱吱鼠

nacos踩坑之nacos运行报错

在2021年年底的时候使用docker的方式体验了一波nacos,现在有需求所以需要运行nacos,结果一旦运行始终报错,

/usr/lib/jvm/java-11-openjdk-arm64/bin/java   -Xms512m -Xmx512m -Xmn256m -Dnacos.standalone=true -Dnacos.member.list= -Xlog:gc*:file=/home/rock/Desktop/nacos/distribution/logs/nacos_gc.log:time,tags:filecount=10,filesize=100m -Dloader.path=/home/rock/Desktop/nacos/distribution/plugins,/home/rock/Desktop/nacos/distribution/plugins/health,/home/rock/Desktop/nacos/distribution/plugins/cmdb,/home/rock/Desktop/nacos/distribution/plugins/selector -Dnacos.home=/home/rock/Desktop/nacos/distribution -jar /home/rock/Desktop/nacos/distribution/target/nacos-server.jar  --spring.config.additional-location=file:/home/rock/Desktop/nacos/distribution/conf/ --logging.config=/home/rock/Desktop/nacos/distribution/conf/nacos-logback.xml --server.max-http-header-size=524288

         ,--.
       ,--.'|
   ,--,:  : |                                           Nacos 2.2.1
,`--.'`|  ' :                       ,---.               Running in stand alone mode, All function modules
|   :  :  | |                      '   ,'\   .--.--.    Port: 8848
:   |   \ | :  ,--.--.     ,---.  /   /   | /  /    '   Pid: 1507895
|   : '  '; | /       \   /     \.   ; ,. :|  :  /`./   Console: http://192.168.199.151:8848/nacos/index.html
'   ' ;.    ;.--.  .-. | /    / ''   | |: :|  :  ;_
|   | | \   | \__\/: . ..    ' / '   | .; : \  \    `.      https://nacos.io
'   : |  ; .' ," .--.; |'   ; :__|   :    |  `----.   \
|   | '`--'  /  /  ,.  |'   | '.'|\   \  /  /  /`--'  /
'   : |     ;  :   .'   \   :    : `----'  '--'.     /
;   |.'     |  ,     .-./\   \  /            `--'---'
'---'        `--`---'     `----'

2023-04-02 08:45:55,403 INFO Tomcat initialized with port(s): 8848 (http)

2023-04-02 08:45:55,529 INFO Root WebApplicationContext: initialization completed in 4815 ms

2023-04-02 08:45:56,264 ERROR Error starting Tomcat context. Exception: org.springframework.beans.factory.UnsatisfiedDependencyException. Message: Error creating bean with name 'basicAuthenticationFilter' defined in class path resource [com/alibaba/nacos/prometheus/filter/PrometheusAuthFilter.class]: Unsatisfied dependency expressed through method 'basicAuthenticationFilter' parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'nacosAuthConfig' defined in URL [jar:file:/home/rock/Desktop/nacos/distribution/target/nacos-server.jar!/BOOT-INF/lib/nacos-plugin-default-impl-2.2.1.jar!/com/alibaba/nacos/plugin/auth/impl/NacosAuthConfig.class]: Unsatisfied dependency expressed through constructor parameter 1; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'tokenManagerDelegate': Unsatisfied dependency expressed through field 'jwtTokenManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jwtTokenManager' defined in URL [jar:file:/home/rock/Desktop/nacos/distribution/target/nacos-server.jar!/BOOT-INF/lib/nacos-plugin-default-impl-2.2.1.jar!/com/alibaba/nacos/plugin/auth/impl/token/impl/JwtTokenManager.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.alibaba.nacos.plugin.auth.impl.token.impl.JwtTokenManager]: Constructor threw exception; nested exception is java.lang.IllegalArgumentException: the length of secret key must great than or equal 32 bytes; And the secret key  must be encoded by base64.Please see https://nacos.io/zh-cn/docs/v2/guide/user/auth.html

2023-04-02 08:45:56,355 WARN Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat

2023-04-02 08:45:56,363 INFO Nacos Log files: /home/rock/Desktop/nacos/distribution/logs

2023-04-02 08:45:56,364 INFO Nacos Log files: /home/rock/Desktop/nacos/distribution/conf

2023-04-02 08:45:56,364 INFO Nacos Log files: /home/rock/Desktop/nacos/distribution/data

2023-04-02 08:45:56,368 ERROR Startup errors :

org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:163)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:577)
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:745)
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:423)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:307)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1317)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1306)
        at com.alibaba.nacos.Nacos.main(Nacos.java:35)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:49)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:108)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:58)
        at org.springframework.boot.loader.PropertiesLauncher.main(PropertiesLauncher.java:467)
Caused by: org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
        at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:142)
        at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.(TomcatWebServer.java:104)
        at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:479)
        at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:211)
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:182)
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:160)
        ... 16 common frames omitted
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'basicAuthenticationFilter' defined in class path resource [com/alibaba/nacos/prometheus/filter/PrometheusAuthFilter.class]: Unsatisfied dependency expressed through method 'basicAuthenticationFilter' parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'nacosAuthConfig' defined in URL [jar:file:/home/rock/Desktop/nacos/distribution/target/nacos-server.jar!/BOOT-INF/lib/nacos-plugin-default-impl-2.2.1.jar!/com/alibaba/nacos/plugin/auth/impl/NacosAuthConfig.class]: Unsatisfied dependency expressed through constructor parameter 1; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'tokenManagerDelegate': Unsatisfied dependency expressed through field 'jwtTokenManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jwtTokenManager' defined in URL [jar:file:/home/rock/Desktop/nacos/distribution/target/nacos-server.jar!/BOOT-INF/lib/nacos-plugin-default-impl-2.2.1.jar!/com/alibaba/nacos/plugin/auth/impl/token/impl/JwtTokenManager.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.alibaba.nacos.plugin.auth.impl.token.impl.JwtTokenManager]: Constructor threw exception; nested exception is java.lang.IllegalArgumentException: the length of secret key must great than or equal 32 bytes; And the secret key  must be encoded by base64.Please see https://nacos.io/zh-cn/docs/v2/guide/user/auth.html
        at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:800)
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:541)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1352)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1195)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:213)
        at org.springframework.boot.web.servlet.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:212)
        at org.springframework.boot.web.servlet.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:203)
        at org.springframework.boot.web.servlet.ServletContextInitializerBeans.addServletContextInitializerBeans(ServletContextInitializerBeans.java:97)
        at org.springframework.boot.web.servlet.ServletContextInitializerBeans.(ServletContextInitializerBeans.java:86)
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.getServletContextInitializerBeans(ServletWebServerApplicationContext.java:260)
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.selfInitialize(ServletWebServerApplicationContext.java:234)
        at org.springframework.boot.web.embedded.tomcat.TomcatStarter.onStartup(TomcatStarter.java:53)        at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5211)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1383)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)        at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140)
        at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916)
        at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:835)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1383)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)        at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140)
        at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916)
        at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:265)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
        at org.apache.catalina.core.StandardService.startInternal(StandardService.java:430)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
        at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
        at org.apache.catalina.startup.Tomcat.start(Tomcat.java:486)
        at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:123)
        ... 21 common frames omitted
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'nacosAuthConfig' defined in URL [jar:file:/home/rock/Desktop/nacos/distribution/target/nacos-server.jar!/BOOT-INF/lib/nacos-plugin-default-impl-2.2.1.jar!/com/alibaba/nacos/plugin/auth/impl/NacosAuthConfig.class]: Unsatisfied dependency expressed through constructor parameter 1; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'tokenManagerDelegate': Unsatisfied dependency expressed through field 'jwtTokenManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jwtTokenManager' defined in URL [jar:file:/home/rock/Desktop/nacos/distribution/target/nacos-server.jar!/BOOT-INF/lib/nacos-plugin-default-impl-2.2.1.jar!/com/alibaba/nacos/plugin/auth/impl/token/impl/JwtTokenManager.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.alibaba.nacos.plugin.auth.impl.token.impl.JwtTokenManager]: Constructor threw exception; nested exception is java.lang.IllegalArgumentException: the length of secret key must great than or equal 32 bytes; And the secret key  must be encoded by base64.Please see https://nacos.io/zh-cn/docs/v2/guide/user/auth.html
        at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:800)
        at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:229)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1372)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1222)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:410)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1352)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1195)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
        at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1391)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1311)
        at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:887)
        at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:791)
        ... 61 common frames omitted
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'tokenManagerDelegate': Unsatisfied dependency expressed through field 'jwtTokenManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jwtTokenManager' defined in URL [jar:file:/home/rock/Desktop/nacos/distribution/target/nacos-server.jar!/BOOT-INF/lib/nacos-plugin-default-impl-2.2.1.jar!/com/alibaba/nacos/plugin/auth/impl/token/impl/JwtTokenManager.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.alibaba.nacos.plugin.auth.impl.token.impl.JwtTokenManager]: Constructor threw exception; nested exception is java.lang.IllegalArgumentException: the length of secret key must great than or equal 32 bytes; And the secret key  must be encoded by base64.Please see https://nacos.io/zh-cn/docs/v2/guide/user/auth.html
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:660)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640)
        at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1431)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
        at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1391)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1311)
        at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:887)
        at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:791)
        ... 84 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jwtTokenManager' defined in URL [jar:file:/home/rock/Desktop/nacos/distribution/target/nacos-server.jar!/BOOT-INF/lib/nacos-plugin-default-impl-2.2.1.jar!/com/alibaba/nacos/plugin/auth/impl/token/impl/JwtTokenManager.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.alibaba.nacos.plugin.auth.impl.token.impl.JwtTokenManager]: Constructor threw exception; nested exception is java.lang.IllegalArgumentException: the length of secret key must great than or equal 32 bytes; And the secret key  must be encoded by base64.Please see https://nacos.io/zh-cn/docs/v2/guide/user/auth.html
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1334)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1232)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
        at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1391)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1311)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:657)
        ... 99 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.alibaba.nacos.plugin.auth.impl.token.impl.JwtTokenManager]: Constructor threw exception; nested exception is java.lang.IllegalArgumentException: the length of secret key must great than or equal 32 bytes; And the secret key  must be encoded by base64.Please see https://nacos.io/zh-cn/docs/v2/guide/user/auth.html
        at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:224)
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:87)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1326)
        ... 110 common frames omitted
Caused by: java.lang.IllegalArgumentException: the length of secret key must great than or equal 32 bytes; And the secret key  must be encoded by base64.Please see https://nacos.io/zh-cn/docs/v2/guide/user/auth.html
        at com.alibaba.nacos.plugin.auth.impl.token.impl.JwtTokenManager.processProperties(JwtTokenManager.java:73)
        at com.alibaba.nacos.plugin.auth.impl.token.impl.JwtTokenManager.(JwtTokenManager.java:61)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
        at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:211)
        ... 112 common frames omitted
Caused by: java.lang.IllegalArgumentException: The specified key byte array is 0 bits which is not secure enough for any JWT HMAC-SHA algorithm.  The JWT JWA Specification (RFC 7518, Section 3.2) states that keys used with HMAC-SHA algorithms MUST have a size >= 256 bits (the key size must be greater than or equal to the hash output size).  See https://tools.ietf.org/html/rfc7518#section-3.2 for more information.
        at com.alibaba.nacos.plugin.auth.impl.jwt.NacosJwtParser.(NacosJwtParser.java:56)
        at com.alibaba.nacos.plugin.auth.impl.token.impl.JwtTokenManager.processProperties(JwtTokenManager.java:71)
        ... 118 common frames omitted
2023-04-02 08:45:56,372 WARN [WatchFileCenter] start close

2023-04-02 08:45:56,372 WARN [WatchFileCenter] start to shutdown this watcher which is watch : /home/rock/Desktop/nacos/distribution/conf

2023-04-02 08:45:56,374 WARN [WatchFileCenter] already closed

2023-04-02 08:45:56,374 WARN [NotifyCenter] Start destroying Publisher

2023-04-02 08:45:56,374 WARN [NotifyCenter] Destruction of the end

2023-04-02 08:45:56,374 ERROR Nacos failed to start, please see /home/rock/Desktop/nacos/distribution/logs/nacos.log for more details.

2023-04-02 08:45:56,403 INFO

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.

2023-04-02 08:45:56,444 ERROR Application run failed

org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:163)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:577)
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:745)
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:423)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:307)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1317)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1306)
        at com.alibaba.nacos.Nacos.main(Nacos.java:35)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:49)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:108)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:58)
        at org.springframework.boot.loader.PropertiesLauncher.main(PropertiesLauncher.java:467)
Caused by: org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
        at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:142)
        at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.(TomcatWebServer.java:104)
        at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:479)
        at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:211)
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:182)
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:160)
        ... 16 common frames omitted
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'basicAuthenticationFilter' defined in class path resource [com/alibaba/nacos/prometheus/filter/PrometheusAuthFilter.class]: Unsatisfied dependency expressed through method 'basicAuthenticationFilter' parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'nacosAuthConfig' defined in URL [jar:file:/home/rock/Desktop/nacos/distribution/target/nacos-server.jar!/BOOT-INF/lib/nacos-plugin-default-impl-2.2.1.jar!/com/alibaba/nacos/plugin/auth/impl/NacosAuthConfig.class]: Unsatisfied dependency expressed through constructor parameter 1; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'tokenManagerDelegate': Unsatisfied dependency expressed through field 'jwtTokenManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jwtTokenManager' defined in URL [jar:file:/home/rock/Desktop/nacos/distribution/target/nacos-server.jar!/BOOT-INF/lib/nacos-plugin-default-impl-2.2.1.jar!/com/alibaba/nacos/plugin/auth/impl/token/impl/JwtTokenManager.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.alibaba.nacos.plugin.auth.impl.token.impl.JwtTokenManager]: Constructor threw exception; nested exception is java.lang.IllegalArgumentException: the length of secret key must great than or equal 32 bytes; And the secret key  must be encoded by base64.Please see https://nacos.io/zh-cn/docs/v2/guide/user/auth.html
        at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:800)
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:541)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1352)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1195)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:213)
        at org.springframework.boot.web.servlet.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:212)
        at org.springframework.boot.web.servlet.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:203)
        at org.springframework.boot.web.servlet.ServletContextInitializerBeans.addServletContextInitializerBeans(ServletContextInitializerBeans.java:97)
        at org.springframework.boot.web.servlet.ServletContextInitializerBeans.(ServletContextInitializerBeans.java:86)
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.getServletContextInitializerBeans(ServletWebServerApplicationContext.java:260)
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.selfInitialize(ServletWebServerApplicationContext.java:234)
        at org.springframework.boot.web.embedded.tomcat.TomcatStarter.onStartup(TomcatStarter.java:53)        at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5211)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1383)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)        at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140)
        at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916)
        at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:835)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1383)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)        at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140)
        at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:916)
        at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:265)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
        at org.apache.catalina.core.StandardService.startInternal(StandardService.java:430)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
        at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:930)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
        at org.apache.catalina.startup.Tomcat.start(Tomcat.java:486)
        at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:123)
        ... 21 common frames omitted
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'nacosAuthConfig' defined in URL [jar:file:/home/rock/Desktop/nacos/distribution/target/nacos-server.jar!/BOOT-INF/lib/nacos-plugin-default-impl-2.2.1.jar!/com/alibaba/nacos/plugin/auth/impl/NacosAuthConfig.class]: Unsatisfied dependency expressed through constructor parameter 1; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'tokenManagerDelegate': Unsatisfied dependency expressed through field 'jwtTokenManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jwtTokenManager' defined in URL [jar:file:/home/rock/Desktop/nacos/distribution/target/nacos-server.jar!/BOOT-INF/lib/nacos-plugin-default-impl-2.2.1.jar!/com/alibaba/nacos/plugin/auth/impl/token/impl/JwtTokenManager.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.alibaba.nacos.plugin.auth.impl.token.impl.JwtTokenManager]: Constructor threw exception; nested exception is java.lang.IllegalArgumentException: the length of secret key must great than or equal 32 bytes; And the secret key  must be encoded by base64.Please see https://nacos.io/zh-cn/docs/v2/guide/user/auth.html
        at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:800)
        at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:229)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1372)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1222)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:410)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1352)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1195)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
        at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1391)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1311)
        at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:887)
        at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:791)
        ... 61 common frames omitted
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'tokenManagerDelegate': Unsatisfied dependency expressed through field 'jwtTokenManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jwtTokenManager' defined in URL [jar:file:/home/rock/Desktop/nacos/distribution/target/nacos-server.jar!/BOOT-INF/lib/nacos-plugin-default-impl-2.2.1.jar!/com/alibaba/nacos/plugin/auth/impl/token/impl/JwtTokenManager.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.alibaba.nacos.plugin.auth.impl.token.impl.JwtTokenManager]: Constructor threw exception; nested exception is java.lang.IllegalArgumentException: the length of secret key must great than or equal 32 bytes; And the secret key  must be encoded by base64.Please see https://nacos.io/zh-cn/docs/v2/guide/user/auth.html
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:660)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640)
        at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1431)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
        at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1391)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1311)
        at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:887)
        at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:791)
        ... 84 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jwtTokenManager' defined in URL [jar:file:/home/rock/Desktop/nacos/distribution/target/nacos-server.jar!/BOOT-INF/lib/nacos-plugin-default-impl-2.2.1.jar!/com/alibaba/nacos/plugin/auth/impl/token/impl/JwtTokenManager.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.alibaba.nacos.plugin.auth.impl.token.impl.JwtTokenManager]: Constructor threw exception; nested exception is java.lang.IllegalArgumentException: the length of secret key must great than or equal 32 bytes; And the secret key  must be encoded by base64.Please see https://nacos.io/zh-cn/docs/v2/guide/user/auth.html
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1334)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1232)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
        at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1391)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1311)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:657)
        ... 99 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.alibaba.nacos.plugin.auth.impl.token.impl.JwtTokenManager]: Constructor threw exception; nested exception is java.lang.IllegalArgumentException: the length of secret key must great than or equal 32 bytes; And the secret key  must be encoded by base64.Please see https://nacos.io/zh-cn/docs/v2/guide/user/auth.html
        at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:224)
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:87)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1326)
        ... 110 common frames omitted
Caused by: java.lang.IllegalArgumentException: the length of secret key must great than or equal 32 bytes; And the secret key  must be encoded by base64.Please see https://nacos.io/zh-cn/docs/v2/guide/user/auth.html
        at com.alibaba.nacos.plugin.auth.impl.token.impl.JwtTokenManager.processProperties(JwtTokenManager.java:73)
        at com.alibaba.nacos.plugin.auth.impl.token.impl.JwtTokenManager.(JwtTokenManager.java:61)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
        at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:211)
        ... 112 common frames omitted
Caused by: java.lang.IllegalArgumentException: The specified key byte array is 0 bits which is not secure enough for any JWT HMAC-SHA algorithm.  The JWT JWA Specification (RFC 7518, Section 3.2) states that keys used with HMAC-SHA algorithms MUST have a size >= 256 bits (the key size must be greater than or equal to the hash output size).  See https://tools.ietf.org/html/rfc7518#section-3.2 for more information.
        at com.alibaba.nacos.plugin.auth.impl.jwt.NacosJwtParser.(NacosJwtParser.java:56)
        at com.alibaba.nacos.plugin.auth.impl.token.impl.JwtTokenManager.processProperties(JwtTokenManager.java:71)
        ... 118 common frames omitted
2023-04-02 08:45:56,447 WARN [ThreadPoolManager] Start destroying ThreadPool

2023-04-02 08:45:56,452 WARN [ThreadPoolManager] Destruction of the end

最开始以为是因为我是用arm服务器且不是nacos官方要求的JDK的原因,

为什么会这么想因为arm的环境是OpenJDK,OpenJDK和oracleJDK,有部分差异的

上官方要求的JDK结果还是同样报错,

实在没法最后在nacos官网翻了很久才看到,还需要修改conf目录下的application.properties文件。

设置其中的nacos.core.auth.plugin.nacos.token.secret.key值，详情可查看鉴权-自定义密钥.

注意，文档中的默认值SecretKey012345678901234567890123456789012345678901234567890123456789和VGhpc0lzTXlDdXN0b21TZWNyZXRLZXkwMTIzNDU2Nzg=为公开默认值，可用于临时测试，实际使用时请务必更换为自定义的其他有效值。

没错,是nacos没有配置key的原因,终其根本原因是nacos文档默认显示1.x的文档,在2.x之后需要自己手动配置密钥了

你可能感兴趣的:(linux)

android系统selinux中添加新属性property 辉色投像
1.定位/android/system/sepolicy/private/property_contexts声明属性开头：persist.charge声明属性类型：u:object_r:system_prop:s0图12.定位到android/system/sepolicy/public/domain.te删除neverallow{domain-init}default_prop:property
Linux下QT开发的动态库界面弹出操作（SDL2） 13jjyao QT类 qt 开发语言 sdl2 linux
需求：操作系统为linux，开发框架为qt，做成需带界面的qt动态库，调用方为java等非qt程序难点：调用方为java等非qt程序，也就是说调用方肯定不带QApplication::exec()，缺少了这个，QTimer等事件和QT创建的窗口将不能弹出(包括opencv也是不能弹出)；这与qt调用本身qt库是有本质的区别的思路：1.调用方缺QApplication::exec()，那么我们在接口
linux sdl windows.h,Windows下的SDL安装奔跑吧linux内核 linux sdl windows.h
首先你要下载并安装SDL开发包。如果装在C盘下，路径为C:\SDL1.2.5如果在WINDOWS下。你可以按以下步骤：1.打开VC++，点击"Tools",Options2,点击directories选项3.选择"Includefiles"增加一个新的路径。"C:\SDL1.2.5\include"4，现在选择"Libaryfiles“增加"C:\SDL1.2.5\lib"现在你可以开始编写你的第
linux中sdl的使用教程,sdl使用入门 Melissa Corvinus linux中sdl的使用教程
本文通过一个简单示例讲解SDL的基本使用流程。示例中展示一个窗口，窗口里面有个随机颜色快随机移动。当我们鼠标点击关闭按钮时间窗口关闭。基本步骤如下：1.初始化SDL并创建一个窗口。SDL_Init()初始化SDL_CreateWindow()创建窗口2.纹理渲染存储RGB和存储纹理的区别：比如一个从左到右由红色渐变到蓝色的矩形，用存储RGB的话就需要把矩形中每个点的具体颜色值存储下来；而纹理只是一
PHP环境搭建详细教程好看资源平台前端 php
PHP是一个流行的服务器端脚本语言，广泛用于Web开发。为了使PHP能够在本地或服务器上运行，我们需要搭建一个合适的PHP环境。本教程将结合最新资料，介绍在不同操作系统上搭建PHP开发环境的多种方法，包括Windows、macOS和Linux系统的安装步骤，以及本地和Docker环境的配置。1.PHP环境搭建概述PHP环境的搭建主要分为以下几类：集成开发环境：例如XAMPP、WAMP、MAMP，这
使用 FinalShell 进行远程连接（ssh 远程连接 Linux 服务器）编程经验分享开发工具服务器 ssh linux
目录前言基本使用教程新建远程连接连接主机自定义命令路由追踪前言后端开发，必然需要和服务器打交道，部署应用，排查问题，查看运行日志等等。一般服务器都是集中部署在机房中，也有一些直接是云服务器，总而言之，程序员不可能直接和服务器直接操作，一般都是通过ssh连接来登录服务器。刚接触远程连接时，使用的是XSHELL来远程连接服务器，连接上就能够操作远程服务器了，但是仅用XSHELL并没有上传下载文件的功能
libyuv之linux编译 jaronho Linux linux 运维服务器
文章目录一、下载源码二、编译源码三、注意事项1、银河麒麟系统（aarch64）（1）解决armv8-a+dotprod+i8mm指令集支持问题（2）解决armv9-a+sve2指令集支持问题一、下载源码到GitHub网站下载https://github.com/lemenkov/libyuv源码，或者用直接用git克隆到本地，如：gitclonehttps://github.com/lemenko
ARM驱动学习之5 LEDS驱动 JT灬新一嵌入式 C 底层 arm开发学习单片机
ARM驱动学习之5LEDS驱动知识点：•linuxGPIO申请函数和赋值函数–gpio_request–gpio_set_value•三星平台配置GPIO函数–s3c_gpio_cfgpin•GPIO配置输出模式的宏变量–S3C_GPIO_OUTPUT注意点：DRIVER_NAME和DEVICE_NAME匹配。实现步骤：1.加入需要的头文件：//Linux平台的gpio头文件#include//三
【华为OD技术面试真题精选 - 非技术题】 -HR面，综合面_华为od hr面一个射手座的程序媛程序员华为od 面试职场和发展
最后的话最近很多小伙伴找我要Linux学习资料，于是我翻箱倒柜，整理了一些优质资源，涵盖视频、电子书、PPT等共享给大家！资料预览给大家整理的视频资料：给大家整理的电子书资料：如果本文对你有帮助，欢迎点赞、收藏、转发给朋友，让我有持续创作的动力！网上学习资料一大堆，但如果学到的知识不成体系，遇到问题时只是浅尝辄止，不再深入研究，那么很难做到真正的技术提升。需要这份系统化的资料的朋友，可以点击这里获
简介Shell、zsh、bash zhaosuningsn Shell zsh bash shell linux bash
Shell是Linux和Unix的外壳，类似衣服，负责外界与Linux和Unix内核的交互联系。例如接收终端用户及各种应用程序的命令，把接收的命令翻译成内核能理解的语言，传递给内核，并把内核处理接收的命令的结果返回给外界，即Shell是外界和内核沟通的桥梁或大门。Linux和Unix提供了多种Shell，其中有种bash，当然还有其他好多种。Mac电脑中不但有bash，还有一个zsh，预装的，据说
Linux MariaDB使用OpenSSL安装SSL证书 Meta39 MySQL Oracle MariaDB Linux Windows ssl linux mariadb
进入到证书存放目录，批量删除.pem证书警告：确保已经进入到证书存放目录find.-typef-iname\*.pem-delete查看是否安装OpenSSLopensslversion没有则安装yuminstallopensslopenssl-devel开启SSL编辑/etc/my.cnf文件（没有的话就创建，但是要注意，在/etc/my.cnf.d/server.cnf配置了datadir的，
【从浅识到熟知Linux】Linux发展史 Jammingpro 从浅学到熟知Linux linux 运维服务器
归属专栏：从浅学到熟知Linux个人主页：Jammingpro每日努力一点点，技术变化看得见文章前言：本篇文章记录Linux发展的历史，因在介绍Linux过程中涉及的其他操作系统及人物，本文对相关内容也有所介绍。文章目录Unix发展史Linux发展史开源Linux官网企业应用情况发行版本在学习Linux前，我们可能都会问Linux从哪里来？它是如何发展的。但在介绍Linux之前，需要先介绍一下Un
linux 发展史种树的猴子内核 java 操作系统 linux 大数据
linux发展史说明此前对linux认识模糊一知半解，近期通过学习将自己对于linux的发展总结一下方便大家日后的学习。那Linux是目前一款非常火热的开源操作系统，可是linux是什么时候出现的，又是因为什么样的原因被开发出来的呢。以下将对linux的发展历程进行详细的讲解。目录一、Linux发展背景二、UINIX的诞生三、UNIX的重要分支-BSD的诞生四、Minix的诞生五、GNU与Free
Linux sh命令 fengyehongWorld Linux linux
目录一.基本语法二.选项2.1-c字符串中读取内容，并执行2.1.1基本用法2.1.2获取当前目录下失效的超链接2.2-x每个命令执行之前，将其打印出来2.3结合Here文档使用一.基本语法⏹Linux和Unix系统中用于执行shell脚本或运行命令的命令。sh[选项][脚本文件][参数...]⏹选项-c：从字符串中读取内容，并执行。-x：在每个命令执行之前，将其打印出来。-s：从标准流中读取内容
Linux vi常用命令 fengyehongWorld Linux linux
参考资料viコマンド（vimコマンド）リファレンス目录一.保存系命令二.删除系命令三.移动系命令四.复制粘贴系命令一.保存系命令⏹保存并退出:wq⏹强制保存并退出:wq!⏹退出(文件未编辑):q⏹强制退出(忽略已编辑内容):q!⏹另存为:w新文件名二.删除系命令⏹删除当前行dd⏹清空整个文档gg：移动到文档顶部dG：删除到最后一行ggdG三.移动系命令⏹移动到文档顶部gg⏹移动到文档底部#方式1G
Linux查看服务器日志 TPBoreas 运维 linux 运维
一、tail这个是我最常用的一种查看方式用法如下：tail-n10test.log查询日志尾部最后10行的日志;tail-n+10test.log查询10行之后的所有日志;tail-fn10test.log循环实时查看最后1000行记录(最常用的)一般还会配合着grep用，(实时抓包)例如:tail-fn1000test.log|grep'关键字'（动态抓包）tail-fn1000test.log
笋丁网页自动回复机器人V3.0.0免授权版源码希希分享软希网58soho_cn 源码资源笋丁网页自动回复机器人
笋丁网页机器人一款可设置自动回复，默认消息，调用自定义api接口的网页机器人。此程序后端语言使用Golang，内存占用最高不超过30MB，1H1G服务器流畅运行。仅支持Linux服务器部署，不支持虚拟主机，请悉知！使用自定义api功能需要有一定的建站基础。源码下载：https://download.csdn.net/download/m0_66047725/89754250更多资源下载：关注我。安
Linux CTF逆向入门蚁景网络安全 linux 运维 CTF
1.ELF格式我们先来看看ELF文件头，如果想详细了解，可以查看ELF的manpage文档。关于ELF更详细的说明：e_shoff：节头表的文件偏移量（字节）。如果文件没有节头表，则此成员值为零。sh_offset：表示了该section（节）离开文件头部位置的距离+-------------------+|ELFheader|---++--------->+-------------------
NPM私库搭建-verdaccio（Linux） Beam007 npm linux 前端
1、安装nodelinux服务器安装nodea)、官网下载所需的node版本https://nodejs.org/dist/v14.21.0/b)、解压安装包若下载的是xxx.tar.xz文件，解压命令为tar-xvfxxx.tar.xzc)、修改环境变量修改：/etc/profile文件#SETPATHFORNODEJSexportNODE_HOME=NODEJS解压安装的路径exportPAT
C++常见知识掌握 nfgo c++开发语言
1.Linux软件开发、调试与维护内核与系统结构Linux内核是操作系统的核心，负责管理硬件资源，提供系统服务，它是系统软件与硬件之间的桥梁。主要组成部分包括：进程管理：内核通过调度器分配CPU时间给各个进程，实现进程的创建、调度、终止等操作。使用进程描述符（task_struct）来存储进程信息，包括状态（就绪、运行、阻塞等）、优先级、内存映射等。内存管理：包括物理内存和虚拟内存管理。通过页表映
linux脚本sed替换变量,sed 命令中替换值为shell变量诺坎普之约 linux脚本sed替换变量
文章目录sed命令中替换值为shell变量替换基本语法sed中替换使用shell变量总结参考文档sed命令中替换值为shell变量替换基本语法大家都是sed有很多用法，最多就应该是替换一些值了。让我们先回忆sed的替换语法。在sed进行替换的时候sed-i's/old/new/g'1.txtecho"hellooldfrank"|sed's/old/new/g'结果如下：hellonewfrank
RK3229_Android9.0_Box 4G模块EC200A调试 suifen_ 网络
0、kernel修改这部分完全可以参考Linux的移植：RK3588EC200A-CN【4G模块】调试_rkec200a-cn-CSDN博客1、修改device/rockchip/rk322xdiff--gita/device.mkb/device.mkindexec6bfaa..e7c32d1100755---a/device.mk+++b/device.mk@@-105,6+105,8@@en
linux 安装Sublime Text 3 hhyiyuanyu Python学习 linux sublime text
方法/步骤打开官网http://www.sublimetext.com/3，选择64位进行下载执行命令wgethttps://download.sublimetext.com/sublime_text_3_build_3126_x64.tar.bz2进行下载3、下载完成进行解压,执行tar-xvvfsublime_text_3_build_3126_x64.tar.bz解压4、解压完成以后，移动到
KVM虚拟机源代码分析【转】 xidianjiapei001 #虚拟化技术
1.KVM结构及工作原理1.1KVM结构KVM基本结构有两部分组成。一个是KVMDriver，已经成为Linux内核的一个模块。负责虚拟机的创建，虚拟内存的分配，虚拟CPU寄存器的读写以及虚拟CPU的运行等。另外一个是稍微修改过的Qemu，用于模拟PC硬件的用户空间组件，提供I/O设备模型以及访问外设的途径。KVM基本结构如图1所示。其中KVM加入到标准的Linux内核中，被组织成Linux中标准
史上最全git命令,git回滚,git命令大全騒周其他 git
git命令大全一、Git整体理解二、由暂存区本地仓库三、由本地仓->远程仓库四、冲突处理五、Git分支操作六、bug的分支七、feature分支八、暂存的使用九、远程仓的操作十、标签的使用十一、Git配置全局信息十二、Linux的一些简单操作和一些符号的解释十三、符号解释十四、显示安装详细信息十五、gitconfig十六、Gitclone十七、Gitinit十八、gitstatus十九、gitre
【显示后台运行 & 的命令】晨春计 debug linux 服务器运维
目录背景步骤详解示例背景当你在Linuxshell中使用&符号将一个命令放到后台运行时，你可以使用jobs命令来查看这些后台进程的状态。但是，jobs命令并不会直接显示进程的PID（进程ID）。它会显示一个作业列表，其中包括每个作业的状态和一个作业标识符（通常是百分号%后面跟着一个数字），但不会直接显示PID。获取后台进程的PID步骤：1、使用jobs命令查看后台作业。2、使用ps命令配合grep
Android shell 常用 debug 命令晨春计 Audio debug android linux
目录1、查看版本2、am命令3、pm命令4、dumpsys命令5、sed命令6、log定位查看APK进程号7、log定位使用场景1、查看版本1.1、Android串口终端执行getpropro.build.version.release#获取Android版本uname-a#查看linux内核版本信息uname-r#单独查看内核版本1.2、linux服务器执行lsb_release-a#查看Lin
【nginx】ngx_http_proxy_connect_module 正向代理等风来不如迎风去网络服务入门与实战 nginx http 运维
50.65无法访问服务器，(403错误)50.196可以访问服务器。那么，配置65通过196访问。需要一个nginx作为代理【nginx】搭配okhttp配置反向代理发送原生的nginx是不支持okhttp的CONNECT请求的。大神竟然给出了一个java工程GINX编译ngx_http_proxy_connect_module及做正向代理是linux构建的。是windows构建的：编译Windo
linux下好用的任务管理器htop WittXie Linux linux 服务器运维
给大家推荐个好用的任务管理器htop，简直好用的不得了。完虐top。不解释了，看文章！！！在Linux系统中，top命令用来显示系统中正在运行的进程的实时状态，它显示了一些非常有用的信息，比如CPU利用情况、内存消耗情况，以及每个进程情况等。但是，你知道吗？还有另外一个命令行工具'htop'，它与传统的top命令功能一样，但它有更加强大的功能及能显示更多的信息。这篇文章，我们会用实例来讨论这个'h
Linux下使用U盘 WittXie Linux linux 运维服务器
第一步：插入U盘，如果能够识别出U盘，则会打印出一些信息；第二步：查看U盘系统分配给U盘的设备名；输入如下命令进行查看：fdisk-l/dev/sda如果打印出如下信息：Disk/dev/sda:4233MB,4233101312bytes165heads,34sectors/track,1473cylindersUnits=cylindersof5610*512=2872320bytesDevi
LeetCode[Math] - #66 Plus One Cwind java LeetCode 题解 Algorithm Math
原题链接：#66 Plus One 要求：给定一个用数字数组表示的非负整数，如num1 = {1, 2, 3, 9}, num2 = {9, 9}等，给这个数加上1。注意： 1. 数字的较高位存在数组的头上，即num1表示数字1239 2. 每一位（数组中的每个元素）的取值范围为0~9 难度：简单分析：题目比较简单，只须从数组
JQuery中$.ajax()方法参数详解 AILIKES JavaScript jsonp jquery Ajax json
url: 要求为String类型的参数，（默认为当前页地址）发送请求的地址。 type: 要求为String类型的参数，请求方式（post或get）默认为get。注意其他http请求方法，例如put和 delete也可以使用，但仅部分浏览器支持。 timeout: 要求为Number类型的参数，设置请求超时时间（毫秒）。此设置将覆盖$.ajaxSetup()方法的全局
JConsole & JVisualVM远程监视Webphere服务器JVM Kai_Ge JVisualVM JConsole Webphere
JConsole是JDK里自带的一个工具，可以监测Java程序运行时所有对象的申请、释放等动作，将内存管理的所有信息进行统计、分析、可视化。我们可以根据这些信息判断程序是否有内存泄漏问题。　　使用JConsole工具来分析WAS的JVM问题，需要进行相关的配置。　　首先我们看WAS服务器端的配置. 　　1、登录was控制台https://10.4.119.18
自定义annotation 120153216 annotation
Java annotation 自定义注释@interface的用法一、什么是注释说起注释，得先提一提什么是元数据(metadata)。所谓元数据就是数据的数据。也就是说，元数据是描述数据的。就象数据表中的字段一样，每个字段描述了这个字段下的数据的含义。而J2SE5.0中提供的注释就是java源代码的元数据，也就是说注释是描述java源
CentOS 5/6.X 使用 EPEL YUM源 2002wmj centos
CentOS 6.X 安装使用EPEL YUM源1. 查看操作系统版本[root@node1 ~]# uname -a Linux node1.test.com 2.6.32-358.el6.x86_64 #1 SMP Fri Feb 22 00:31:26 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux [root@node1 ~]#
在SQLSERVER中查找缺失和无用的索引SQL 357029540 SQL Server
--缺失的索引 SELECT avg_total_user_cost * avg_user_impact * ( user_scans + user_seeks ) AS PossibleImprovement , last_user_seek ,
Spring3 MVC 笔记（二） —json+rest优化 7454103 Spring3 MVC
接上次的 spring mvc 注解的一些详细信息！其实也是一些个人的学习笔记呵呵！
替换“\”的时候报错Unexpected internal error near index 1 \ ^ adminjun java “\替换”
发现还是有些东西没有刻子脑子里,,过段时间就没什么概念了,所以贴出来...以免再忘... 在拆分字符串时遇到通过 \ 来拆分，可是用所以想通过转义 \\ 来拆分的时候会报异常 public class Main { /*
POJ 1035 Spell checker(哈希表) aijuans 暴力求解--哈希表
/* 题意：输入字典，然后输入单词，判断字典中是否出现过该单词，或者是否进行删除、添加、替换操作，如果是，则输出对应的字典中的单词要求按照输入时候的排名输出题解：建立两个哈希表。一个存储字典和输入字典中单词的排名，一个进行最后输出的判重 */ #include <iostream> //#define using namespace std; const int HASH =
通过原型实现javascript Array的去重、最大值和最小值 ayaoxinchao JavaScript array prototype
用原型函数（prototype）可以定义一些很方便的自定义函数，实现各种自定义功能。本次主要是实现了Array的去重、获取最大值和最小值。实现代码如下： <script type="text/javascript"> Array.prototype.unique = function() { var a = {}; var le
UIWebView实现https双向认证请求 bewithme UIWebView https Objective-C
什么是HTTPS双向认证我已在先前的博文 ASIHTTPRequest实现https双向认证请求中有讲述，不理解的读者可以先复习一下。本文是用UIWebView来实现对需要客户端证书验证的服务请求，网上有些文章中有涉及到此内容，但都只言片语，没有讲完全，更没有完整的代码，让人困扰不已。但是此知
NoSQL数据库之Redis数据库管理(Redis高级应用之事务处理、持久化操作、pub_sub、虚拟内存) bijian1013 redis 数据库 NoSQL
3.事务处理 Redis对事务的支持目前不比较简单。Redis只能保证一个client发起的事务中的命令可以连续的执行，而中间不会插入其他client的命令。当一个client在一个连接中发出multi命令时，这个连接会进入一个事务上下文，该连接后续的命令不会立即执行，而是先放到一个队列中，当执行exec命令时，redis会顺序的执行队列中
各数据库分页sql备忘 bingyingao oracle sql 分页
ORACLE 下面这个效率很低 SELECT * FROM ( SELECT A.*, ROWNUM RN FROM (SELECT * FROM IPAY_RCD_FS_RETURN order by id desc) A ) WHERE RN <20; 下面这个效率很高 SELECT A.*, ROWNUM RN FROM (SELECT * FROM IPAY_RCD_
【Scala七】Scala核心一：函数 bit1129 scala
1. 如果函数体只有一行代码，则可以不用写{},比如 def print(x: Int) = println(x) 一行上的多条语句用分号隔开，则只有第一句属于方法体，例如 def printWithValue(x: Int) : String= println(x); "ABC" 上面的代码报错，因为，printWithValue的方法
了解GHC的factorial编译过程 bookjovi haskell
GHC相对其他主流语言的编译器或解释器还是比较复杂的，一部分原因是haskell本身的设计就不易于实现compiler，如lazy特性，static typed，类型推导等。关于GHC的内部实现有篇文章说的挺好，这里，文中在RTS一节中详细说了haskell的concurrent实现，里面提到了green thread，如果熟悉Go语言的话就会发现，ghc的concurrent实现和Go有点类
Java-Collections Framework学习与总结-LinkedHashMap BrokenDreams LinkedHashMap
前面总结了java.util.HashMap，了解了其内部由散列表实现，每个桶内是一个单向链表。那有没有双向链表的实现呢？双向链表的实现会具备什么特性呢？来看一下HashMap的一个子类——java.util.LinkedHashMap。
读《研磨设计模式》-代码笔记-抽象工厂模式-Abstract Factory bylijinnan abstract
声明：本文只为方便我个人查阅和理解，详细的分析以及源代码请移步原作者的博客http://chjavach.iteye.com/ package design.pattern; /* * Abstract Factory Pattern * 抽象工厂模式的目的是： * 通过在抽象工厂里面定义一组产品接口，方便地切换“产品簇” * 这些接口是相关或者相依赖的
压暗面部高光 cherishLC PS
方法一、压暗高光&重新着色当皮肤很油又使用闪光灯时，很容易在面部形成高光区域。下面讲一下我今天处理高光区域的心得：皮肤可以分为纹理和色彩两个属性。其中纹理主要由亮度通道（Lab模式的L通道）决定，色彩则由a、b通道确定。处理思路为在保持高光区域纹理的情况下，对高光区域着色。具体步骤为：降低高光区域的整体的亮度，再进行着色。如果想简化步骤，可以只进行着色（参看下面的步骤1
Java VisualVM监控远程JVM crabdave visualvm
Java VisualVM监控远程JVM JDK1.6开始自带的VisualVM就是不错的监控工具. 这个工具就在JAVA_HOME\bin\目录下的jvisualvm.exe, 双击这个文件就能看到界面通过JMX连接远程机器, 需要经过下面的配置: 1. 修改远程机器JDK配置文件 (我这里远程机器是linux).
Saiku去掉登录模块 daizj saiku 登录 olap BI
1、修改applicationContext-saiku-webapp.xml <security:intercept-url pattern="/rest/**" access="IS_AUTHENTICATED_ANONYMOUSLY" /> <security:intercept-url pattern=&qu
浅析 Flex中的Focus dsjt html Flex Flash
关键字：focus、 setFocus、 IFocusManager、KeyboardEvent 焦点、设置焦点、获得焦点、键盘事件一、无焦点的困扰——组件监听不到键盘事件原因：只有获得焦点的组件（确切说是InteractiveObject）才能监听到键盘事件的目标阶段；键盘事件（flash.events.KeyboardEvent）参与冒泡阶段，所以焦点组件的父项（以及它爸
Yii全局函数使用 dcj3sjt126com yii
由于YII致力于完美的整合第三方库，它并没有定义任何全局函数。yii中的每一个应用都需要全类别和对象范围。例如，Yii::app()->user;Yii::app()->params['name'];等等。我们可以自行设定全局函数，使得代码看起来更加简洁易用。(原文地址) 我们可以保存在globals.php在protected目录下。然后，在入口脚本index.php的，我们包括在
设计模式之单例模式二（解决无序写入的问题） come_for_dream 单例模式 volatile 乱序执行双重检验锁
在上篇文章中我们使用了双重检验锁的方式避免懒汉式单例模式下由于多线程造成的实例被多次创建的问题，但是因为由于JVM为了使得处理器内部的运算单元能充分利用，处理器可能会对输入代码进行乱序执行（Out Of Order Execute）优化，处理器会在计算之后将乱序执行的结果进行重组，保证该
程序员从初级到高级的蜕变 gcq511120594 框架工作 PHP android html5
软件开发是一个奇怪的行业，市场远远供不应求。这是一个已经存在多年的问题，而且随着时间的流逝，愈演愈烈。我们严重缺乏能够满足需求的人才。这个行业相当年轻。大多数软件项目是失败的。几乎所有的项目都会超出预算。我们解决问题的最佳指导方针可以归结为——“用一些通用方法去解决问题，当然这些方法常常不管用，于是，唯一能做的就是不断地尝试，逐个看看是否奏效”。现在我们把淫浸代码时间超过3年的开发人员称为
Reverse Linked List hcx2013 list
Reverse a singly linked list. /** * Definition for singly-linked list. * public class ListNode { * int val; * ListNode next; * ListNode(int x) { val = x; } * } */ p
Spring4.1新特性——数据库集成测试 jinnianshilongnian spring 4.1
目录 Spring4.1新特性——综述 Spring4.1新特性——Spring核心部分及其他 Spring4.1新特性——Spring缓存框架增强 Spring4.1新特性——异步调用和事件机制的异常处理 Spring4.1新特性——数据库集成测试脚本初始化 Spring4.1新特性——Spring MVC增强 Spring4.1新特性——页面自动化测试框架Spring MVC T
C# Ajax上传图片同时生成微缩图(附Demo) liyonghui160com
1.Ajax无刷新上传图片,详情请阅我的这篇文章。（jquery + c# ashx） 2.C#位图处理 System.Drawing。 3.最新demo支持IE7,IE8,Fir
Java list三种遍历方法性能比较 pda158 java
从c/c++语言转向java开发，学习java语言list遍历的三种方法，顺便测试各种遍历方法的性能，测试方法为在ArrayList中插入1千万条记录，然后遍历ArrayList，发现了一个奇怪的现象，测试代码例如以下： package com.hisense.tiger.list; import java.util.ArrayList; import java.util.Iterator;
300个涵盖IT各方面的免费资源（上）——商业与市场篇 shoothao seo 商业与市场 IT资源免费资源
A.网站模板+logo+服务器主机+发票生成 HTML5 UP:响应式的HTML5和CSS3网站模板。 Bootswatch:免费的Bootstrap主题。 Templated:收集了845个免费的CSS和HTML5网站模板。 Wordpress.org|Wordpress.com:可免费创建你的新网站。 Strikingly:关注领域中免费无限的移动优
localStorage、sessionStorage uule localStorage
W3School 例子 HTML5 提供了两种在客户端存储数据的新方法： localStorage - 没有时间限制的数据存储 sessionStorage - 针对一个 session 的数据存储之前，这些都是由 cookie 完成的。但是 cookie 不适合大量数据的存储，因为它们由每个对服务器的请求来传递，这使得 cookie 速度很慢而且效率也不