springboot启动问题集合
文章目录
- APPLICATION FAILED TO START
- 未扫描到路径
- dubbo
- dubbo超时
- dubbo传输数据限制
- dubbo思考
- dubbo依赖注入的service为null
- @Reference 引用错误
- 本地起两个dubbo，debug进入jar包中
- 服务者未启动
- 继承Serializable或者改为json传输
- pom引用报错
- tips
- pom不生效
- NoSuchMethodError通用思路
- 启动失败Error creating bean with name 'projectOrderController'
APPLICATION FAILED TO START
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APPLICATION FAILED TO START
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Description:
A component required a bean of type 'com.lsh.demo.basic.strategy.PayService' that could not be found.
Action:
Consider defining a bean of type 'com.lsh.demo.basic.strategy.PayService' in your configuration.
Process finished with exit code 1
- application未扫描到包路径？ – 修改了包名，而忘记同步 @ComponentScan
未扫描到路径
15:38:38.549 logback [main] WARN o.s.b.w.s.c.AnnotationConfigServletWebServerApplicationContext -
Exception encountered during context initialization -
cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'projectOrderController':
Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.lsh.demo.bootstone.workorder.ProjectOrderService' available:
expected at least 1 bean which qualifies as autowire candidate.
Dependency annotations: {@javax.annotation.Resource(shareable=true, lookup=, name=, description=, authenticationType=CONTAINER, type=class java.lang.Object, mappedName=)}
解决：@ComponentScan 加上该类路径，OK
@ComponentScan(basePackages = {"com.demo.xxx.xxx"})
@ComponentScan 添加包时，如果不能识别其他module的包，检查pom文件是否引入
分析：springboot默认扫描规则：自动扫描启动器类的同包或者其子包的下的注解
dubbo
dubbo超时
com.alibaba.dubbo.remoting.TimeoutException: Waiting server-side response timeout
dubbo传输数据限制
com.alibaba.dubbo.remoting.RemotingException: Data length too large: 16368165, max payload: 8388608, channel: NettyChannel [channel=[id: 0x394cdb88, /10.63.101.xxx:64441 => /10.63.101.xx:20880]]
超过dubbo限制 – 默认是8M
dubbo思考
传输大文件效率
多种格式不支持等等
解惑：1.下载改为返回前端url自行下载
2.dubbo中的 hessian
3.oss中有专门的处理大文件方式-分片上传和断点续传
https://help.aliyun.com/document_detail/31850.html?spm=a2c4g.11186623.2.11.7a1c7815Ez0PRo#concept-wzs-2gb-5db
dubbo依赖注入的service为null
@Reference 引用错误
@Reference 必须是 com.alibaba.dubbo.config.annotation.Reference ，引用错误
重名的有 ：jdk.nashorn.internal.ir.annotations.Reference
本地起两个dubbo，debug进入jar包中
通过idea可以选择
服务者未启动
Caused by: java.lang.IllegalStateException: Failed to check the status of the service com.fliggy.xx.client.service.WorkOrderService. No provider available for the service com.fliggy.xx.client.service.WorkOrderService from the url zookeeper://127.0.0.1:2181/com.alibaba.dubbo.registry.RegistryService?application=bootstone&dubbo=2.6.2&interface=com.fliggy.xx.client.service.WorkOrderService&methods=deleteFile,uploadFile,addReamrk,queryEquProducer,downloadPhoto,getWorkOrderList,uniteQuery,addContact,queryWorkOrderById,uploadPhoto,downloadFile,updateStatus,uniteUpdateOrder&pid=12880®ister.ip=10.63.101.xx&revision=1.0.0-SNAPSHOT&side=consumer×tamp=1550114181298 to the consumer 10.63.101.xx use dubbo version 2.6.2
继承Serializable或者改为json传输
java.lang.RuntimeException: Serialized class com.fliggy.xx.domain.query.MultiVO must implement java.io.Serializable
Java field: private java.util.List com.fliggy.xx.domain.query.MultiConQueryImpWorkOrderVO.multiVOS
Java field: private java.lang.Object com.alibaba.jv.framework.domain.ResultDO.module
实现Serial接口
pom引用报错
tips
提供dubbo给第三方使用时，最好在本地，新建一个项目 + 新建maven 仓库来测试
1、查看maven仓库，jar都存在，删除重新下载试试
报错信息：
Failed to read artifact descriptor for com.fliggy.xxx-client:jar:1.0.0-SNAPSHOT Failed to read artifact descriptor for com.fliggy.xxx-domain:jar:1.0.0-SNAPSHOT Failed to read artifact descriptor for com.fliggy.xxx-client:jar:1.0.0-SNAPSHOT less... (Ctrl+F1)
Inspection info: Inspects a Maven model for resolution problems.
2、通过本地 project structure 引入本地的jar，能使得项目中不报错，但是install 找不到包，项目也无法启动
3、pom文件补全引用，install报错：
[ERROR] Failed to execute goal on project bootstone-web: Could not resolve dependencies for project com.lsh.demo:bootstone-web:war:1.1.1-SNAPSHOT: Failed to collect dependencies at com.fliggy.jvopf:jvopf-domain:jar:1.0.0-SNAPSHOT: Failed to read artifact descriptor for com.fliggy.jvopf:jvopf-domain:jar:1.0.0-SNAPSHOT: Failure to find com.fliggy.jvopf:jvopf:pom:1.0.0-SNAPSHOT in http://116.62.8.239:8082/repository/3rd-party-snapshot/ was cached in the local repository, resolution will not be reattempted until the update interval of tbmirror-snapshots has elapsed or updates are forced -> [Help 1]
4、可能是子pom修改了版本号，父工程没更新？
暂时回退0.0.1版本
pom不生效
上传jar通过指定pom解决
mvn deploy:deploy-file -Dfile=xx-xx-1.0.0-SNAPSHOT.jar -DgroupId=com.xx.xx -DartifactId=boot-stone -Dversion=1.0.0-SNAPSHOT -Dpackaging=jar -Durl=http://xx:8082/repository/3rd-party-snapshot -DrepositoryId=sf -sD:/software/apache-maven-3.5.0-bin/apache-maven-3.5.0/conf/settings_rdc.xml -DpomFile=pom.xml
–
–成功，不需要指定D盘
mvn deploy:deploy-file -Dfile=xx-xx-1.0.0-SNAPSHOT.jar -DgroupId=com.xx.xx-DartifactId=xx-xx-Dversion=1.0.0-SNAPSHOT -Dpackaging=jar -Durl=http://xx:8082/repository/3rd-party-snapshot -DrepositoryId=sf -sD:/software/apache-maven-3.5.0-bin/apache-maven-3.5.0/conf/settings_rdc.xml -DpomFile=pom.xml
NoSuchMethodError通用思路
NoSuchMethodError 一般多为jar冲突，debug断点进去，或者全局搜索是否有重名类
Caused by: java.lang.NoSuchMethodError: com.alibaba.dubbo.common.utils.ConfigUtils.getSystemProperty(Ljava/lang/String;)Ljava/lang/String;
2019年2月18日复现：
！！ hsf 包中重名类 方法 冲突！！
启动失败Error creating bean with name ‘projectOrderController’
放开注释的pom文件即可，引用了本地的jar，但是pom文件还是需求
youcan
14:41:35.918 logback [main] WARN o.s.b.w.s.c.AnnotationConfigServletWebServerApplicationContext - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'projectOrderController': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'projectOrderService' defined in file [D:\MySpringBoot\bootstone\bootstone-dubbo-consumer\target\classes\com\lsh\demo\bootstone\workorder\ProjectOrderService.class]: Post-processing of merged bean definition failed; nested exception is java.lang.IllegalStateException: Failed to introspect Class [com.lsh.demo.bootstone.workorder.ProjectOrderService] from ClassLoader [sun.misc.Launcher$AppClassLoader@18b4aac2]
14:41:35.919 logback [main] INFO c.a.d.c.s.b.f.a.ReferenceAnnotationBeanPostProcessor - class com.alibaba.dubbo.config.spring.beans.factory.annotation.ReferenceAnnotationBeanPostProcessor was destroying!
Disconnected from the target VM, address: '127.0.0.1:61599', transport: 'socket'
Process finished with exit code 1
1、@service换@compent 无用
2、加 @lazy 无用
3、clean install 暴露问题
问题变为 本地引入的jar，install依然报错找不到类
1、加上pom文件来测试，ok