Johnson_zx
Johnson_zx

Spring Boot 集成 Dubbo

Dubbo 是阿里巴巴开源的基于 Java 的高性能 RPC 框架，本文介绍 Spring Boot 集成 Dubbo 的开发过程，更多有关 Dubbo 的技术细节参考 Dubbo 开发

首先，使用 IntelliJ IDEA 创建一个包含 3 个 Module 的工程，参考：
IntelliJ IDEA 创建多 Module 工程

[图片上传失败...(image-35a1cc-1541232040415)]

demo-spring-boot-dubbo-api 是 Maven 工程，定义 Dubbo RPC 服务接口、服务模型和服务异常，通常打包成 jar 被 Dubbo 服务提供方和消费方依赖。
demo-spring-boot-dubbo-provider 是 Spring Boot 工程，Dubbo 服务提供方。
demo-spring-boot-dubbo-consumer 是 Spring Boot 工程，Dubbo 服务消费方。

如何使用 IntelliJ IDEA 创建 Maven 和 Spring Boot 工程请参考：
IntelliJ IDEA 创建 Maven 工程
IntelliJ IDEA 创建 Spring Boot 工程

下面分别介绍这三个工程。

1 demo-spring-boot-dubbo-api

1.1 POM 文件



    4.0.0

    demo.spring.boot.dubbo
    demo-spring-boot-dubbo-api
    1.0-SNAPSHOT
    jar

    
        
            
                org.apache.maven.plugins
                maven-compiler-plugin
                3.7.0
                
                    1.8
                    1.8
                    UTF-8

1.2 定义接口

package demo.spring.boot.dubbo.api;

public interface GreetingService {

    String welcome(String name);
}

2 demo-spring-boot-dubbo-provider

2.1 POM 文件，注意添加 dubbo-spring-boot-starter 依赖



    4.0.0

    demo.spring.boot.dubbo
    demo-spring-boot-dubbo-provider
    0.0.1-SNAPSHOT
    jar

    demo-spring-boot-dubbo-provider
    Demo project for Spring Boot

    
        org.springframework.boot
        spring-boot-starter-parent
        2.0.4.RELEASE
         
    

    
        UTF-8
        UTF-8
        1.8
    

    
        
            org.springframework.boot
            spring-boot-starter
        
        
            com.alibaba.boot
            dubbo-spring-boot-starter
            0.2.0
        
        
            org.springframework.boot
            spring-boot-starter-test
            test
        
    

    
        
            
                org.springframework.boot
                spring-boot-maven-plugin

2.2 在配置文件 application.properties 中添加 Dubbo 配置信息，注意：此处只能用 .properties 格式配置文件，不能使用 .yml 格式配置文件，否则无法成功注册服务（暂时还没追查具体原因）

spring.application.name=demo-spring-boot-dubbo-provider
spring.application.version=1.0

# 基于此包扫描生成 Dubbo 控件
dubbo.scan.basePackages=demo.spring.boot.dubbo.provider.service

dubbo.application.id=demo-spring-boot-dubbo-provider
dubbo.application.name=demo-spring-boot-dubbo-provider

dubbo.protocol.id=dubbo
dubbo.protocol.name=dubbo
dubbo.protocol.port=20880

dubbo.registry.id=demo-multicast-registry
dubbo.registry.address=multicast://224.5.6.7:1234

2.3 定义 Dubbo RPC 服务接口实现类

package demo.spring.boot.dubbo.provider.service;

import com.alibaba.dubbo.config.annotation.Service;
import demo.spring.boot.dubbo.api.GreetingService;

import java.time.LocalDateTime;

@Service(version = "${spring.application.version}",
    application = "${dubbo.application.id}",
    protocol = "${dubbo.protocol.id}",
    registry = "${dubbo.registry.id}")
public class GreetingServiceImpl implements GreetingService {

    @Override
    public String welcome(String name) {
        String msg = "Welcome " + name + " at " + LocalDateTime.now();
        System.out.println(msg);
        return msg;
    }
}

2.4 不需要修改自动生成的应用启动类

package demo.spring.boot.dubbo.provider;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class DemoSpringBootDubboProviderApplication {

    public static void main(String[] args) {
        SpringApplication.run(DemoSpringBootDubboProviderApplication.class, args);
    }
}

启动应用，日志如下，从 MulticastRegistry 相关日志信息中可以看见服务已注册成功。

C:\Dev\Java\jdk1.8.0_172\bin\java.exe "-javaagent:C:\Dev\JetBrains\IntelliJ IDEA 2018.1.2\lib\idea_rt.jar=50691:C:\Dev\JetBrains\IntelliJ IDEA 2018.1.2\bin" -Dfile.encoding=UTF-8 -classpath C:\Dev\Java\jdk1.8.0_172\jre\lib\charsets.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\deploy.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\access-bridge-64.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\cldrdata.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\dnsns.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\jaccess.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\jfxrt.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\localedata.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\nashorn.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\sunec.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\sunjce_provider.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\sunmscapi.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\sunpkcs11.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\zipfs.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\javaws.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\jce.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\jfr.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\jfxswt.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\jsse.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\management-agent.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\plugin.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\resources.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\rt.jar;D:\JYL\DEV\IdeaProjects\demo\demo-spring-boot-dubbo-provider\target\classes;D:\JYL\DEV\Maven\repo\org\springframework\boot\spring-boot-starter\2.0.4.RELEASE\spring-boot-starter-2.0.4.RELEASE.jar;D:\JYL\DEV\Maven\repo\org\springframework\boot\spring-boot\2.0.4.RELEASE\spring-boot-2.0.4.RELEASE.jar;D:\JYL\DEV\Maven\repo\org\springframework\spring-context\5.0.8.RELEASE\spring-context-5.0.8.RELEASE.jar;D:\JYL\DEV\Maven\repo\org\springframework\spring-aop\5.0.8.RELEASE\spring-aop-5.0.8.RELEASE.jar;D:\JYL\DEV\Maven\repo\org\springframework\spring-beans\5.0.8.RELEASE\spring-beans-5.0.8.RELEASE.jar;D:\JYL\DEV\Maven\repo\org\springframework\spring-expression\5.0.8.RELEASE\spring-expression-5.0.8.RELEASE.jar;D:\JYL\DEV\Maven\repo\org\springframework\boot\spring-boot-autoconfigure\2.0.4.RELEASE\spring-boot-autoconfigure-2.0.4.RELEASE.jar;D:\JYL\DEV\Maven\repo\org\springframework\boot\spring-boot-starter-logging\2.0.4.RELEASE\spring-boot-starter-logging-2.0.4.RELEASE.jar;D:\JYL\DEV\Maven\repo\ch\qos\logback\logback-classic\1.2.3\logback-classic-1.2.3.jar;D:\JYL\DEV\Maven\repo\ch\qos\logback\logback-core\1.2.3\logback-core-1.2.3.jar;D:\JYL\DEV\Maven\repo\org\apache\logging\log4j\log4j-to-slf4j\2.10.0\log4j-to-slf4j-2.10.0.jar;D:\JYL\DEV\Maven\repo\org\apache\logging\log4j\log4j-api\2.10.0\log4j-api-2.10.0.jar;D:\JYL\DEV\Maven\repo\org\slf4j\jul-to-slf4j\1.7.25\jul-to-slf4j-1.7.25.jar;D:\JYL\DEV\Maven\repo\javax\annotation\javax.annotation-api\1.3.2\javax.annotation-api-1.3.2.jar;D:\JYL\DEV\Maven\repo\org\springframework\spring-core\5.0.8.RELEASE\spring-core-5.0.8.RELEASE.jar;D:\JYL\DEV\Maven\repo\org\springframework\spring-jcl\5.0.8.RELEASE\spring-jcl-5.0.8.RELEASE.jar;D:\JYL\DEV\Maven\repo\org\yaml\snakeyaml\1.19\snakeyaml-1.19.jar;D:\JYL\DEV\Maven\repo\com\alibaba\boot\dubbo-spring-boot-starter\0.2.0\dubbo-spring-boot-starter-0.2.0.jar;D:\JYL\DEV\Maven\repo\com\alibaba\dubbo\2.6.2\dubbo-2.6.2.jar;D:\JYL\DEV\Maven\repo\org\javassist\javassist\3.20.0-GA\javassist-3.20.0-GA.jar;D:\JYL\DEV\Maven\repo\org\jboss\netty\netty\3.2.5.Final\netty-3.2.5.Final.jar;D:\JYL\DEV\Maven\repo\org\apache\zookeeper\zookeeper\3.4.9\zookeeper-3.4.9.jar;D:\JYL\DEV\Maven\repo\org\slf4j\slf4j-api\1.7.25\slf4j-api-1.7.25.jar;D:\JYL\DEV\Maven\repo\jline\jline\0.9.94\jline-0.9.94.jar;D:\JYL\DEV\Maven\repo\io\netty\netty\3.10.5.Final\netty-3.10.5.Final.jar;D:\JYL\DEV\Maven\repo\org\apache\curator\curator-framework\2.12.0\curator-framework-2.12.0.jar;D:\JYL\DEV\Maven\repo\org\apache\curator\curator-client\2.12.0\curator-client-2.12.0.jar;D:\JYL\DEV\Maven\repo\com\google\guava\guava\16.0.1\guava-16.0.1.jar;D:\JYL\DEV\Maven\repo\com\alibaba\boot\dubbo-spring-boot-autoconfigure\0.2.0\dubbo-spring-boot-autoconfigure-0.2.0.jar;D:\JYL\DEV\IdeaProjects\demo\demo-spring-boot-dubbo-api\target\classes demo.spring.boot.dubbo.provider.DemoSpringBootDubboProviderApplication
2018-08-02 20:03:38.348  INFO 7892 --- [           main] c.a.dubbo.common.logger.LoggerFactory    : using logger: com.alibaba.dubbo.common.logger.slf4j.Slf4jLoggerAdapter
2018-08-02 20:03:38.353  INFO 7892 --- [           main] a.b.d.c.e.WelcomeLogoApplicationListener : 

 :: Dubbo Spring Boot (v0.2.0) : https://github.com/apache/incubator-dubbo-spring-boot-project
 :: Dubbo (v2.6.2) : https://github.com/apache/incubator-dubbo
 :: Google group : [email protected]

2018-08-02 20:03:38.357  INFO 7892 --- [           main] e.OverrideDubboConfigApplicationListener : Dubbo Config was overridden by externalized configuration {dubbo.application.id=demo-spring-boot-dubbo-provider, dubbo.application.name=demo-spring-boot-dubbo-provider, dubbo.protocol.id=dubbo, dubbo.protocol.name=dubbo, dubbo.protocol.port=20880, dubbo.registry.address=multicast://224.5.6.7:1234, dubbo.registry.id=demo-multicast-registry, dubbo.scan.basePackages=demo.spring.boot.dubbo.provider.service}

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.0.4.RELEASE)

2018-08-02 20:03:38.440  INFO 7892 --- [           main] p.DemoSpringBootDubboProviderApplication : Starting DemoSpringBootDubboProviderApplication on LAPTOP-C375ASPB with PID 7892 (D:\JYL\DEV\IdeaProjects\demo\demo-spring-boot-dubbo-provider\target\classes started by Ji in D:\JYL\DEV\IdeaProjects\demo)
2018-08-02 20:03:38.441  INFO 7892 --- [           main] p.DemoSpringBootDubboProviderApplication : No active profile set, falling back to default profiles: default
2018-08-02 20:03:38.495  INFO 7892 --- [           main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@3ec300f1: startup date [Thu Aug 02 20:03:38 CST 2018]; root of context hierarchy
2018-08-02 20:03:38.884  INFO 7892 --- [           main] .a.d.c.s.c.a.DubboConfigBindingRegistrar : The dubbo config bean definition [name : demo-spring-boot-dubbo-provider, class : com.alibaba.dubbo.config.ApplicationConfig] has been registered.
2018-08-02 20:03:38.886  INFO 7892 --- [           main] .a.d.c.s.c.a.DubboConfigBindingRegistrar : The BeanPostProcessor bean definition [com.alibaba.dubbo.config.spring.beans.factory.annotation.DubboConfigBindingBeanPostProcessor] for dubbo config bean [name : demo-spring-boot-dubbo-provider] has been registered.
2018-08-02 20:03:38.887  INFO 7892 --- [           main] .a.d.c.s.c.a.DubboConfigBindingRegistrar : The dubbo config bean definition [name : demo-multicast-registry, class : com.alibaba.dubbo.config.RegistryConfig] has been registered.
2018-08-02 20:03:38.887  INFO 7892 --- [           main] .a.d.c.s.c.a.DubboConfigBindingRegistrar : The BeanPostProcessor bean definition [com.alibaba.dubbo.config.spring.beans.factory.annotation.DubboConfigBindingBeanPostProcessor] for dubbo config bean [name : demo-multicast-registry] has been registered.
2018-08-02 20:03:38.887  INFO 7892 --- [           main] .a.d.c.s.c.a.DubboConfigBindingRegistrar : The dubbo config bean definition [name : dubbo, class : com.alibaba.dubbo.config.ProtocolConfig] has been registered.
2018-08-02 20:03:38.887  INFO 7892 --- [           main] .a.d.c.s.c.a.DubboConfigBindingRegistrar : The BeanPostProcessor bean definition [com.alibaba.dubbo.config.spring.beans.factory.annotation.DubboConfigBindingBeanPostProcessor] for dubbo config bean [name : dubbo] has been registered.
2018-08-02 20:03:38.971  INFO 7892 --- [           main] b.f.a.ServiceAnnotationBeanPostProcessor :  [DUBBO] BeanNameGenerator bean can't be found in BeanFactory with name [org.springframework.context.annotation.internalConfigurationBeanNameGenerator], dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:03:38.972  INFO 7892 --- [           main] b.f.a.ServiceAnnotationBeanPostProcessor :  [DUBBO] BeanNameGenerator will be a instance of org.springframework.context.annotation.AnnotationBeanNameGenerator , it maybe a potential problem on bean name generation., dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:03:38.990  WARN 7892 --- [           main] b.f.a.ServiceAnnotationBeanPostProcessor :  [DUBBO] The BeanDefinition[Root bean: class [com.alibaba.dubbo.config.spring.ServiceBean]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null] of ServiceBean has been registered with name : ServiceBean:greetingServiceImpl:demo.spring.boot.dubbo.api.GreetingService:${spring.application.version}, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:03:38.990  INFO 7892 --- [           main] b.f.a.ServiceAnnotationBeanPostProcessor :  [DUBBO] 1 annotated Dubbo's @Service Components { [Bean definition with name 'greetingServiceImpl': Generic bean: class [demo.spring.boot.dubbo.provider.service.GreetingServiceImpl]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in file [D:\JYL\DEV\IdeaProjects\demo\demo-spring-boot-dubbo-provider\target\classes\demo\spring\boot\dubbo\provider\service\GreetingServiceImpl.class]] } were scanned under package[demo.spring.boot.dubbo.provider.service], dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:03:38.991  WARN 7892 --- [           main] o.s.c.a.ConfigurationClassPostProcessor  : Cannot enhance @Configuration bean definition 'com.alibaba.boot.dubbo.autoconfigure.DubboAutoConfiguration' since its singleton instance has been created too early. The typical cause is a non-static @Bean method with a BeanDefinitionRegistryPostProcessor return type: Consider declaring such methods as 'static'.
2018-08-02 20:03:39.191  INFO 7892 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'relaxedDubboConfigBinder' of type [com.alibaba.boot.dubbo.autoconfigure.RelaxedDubboConfigBinder] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-08-02 20:03:39.193  INFO 7892 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'relaxedDubboConfigBinder' of type [com.alibaba.boot.dubbo.autoconfigure.RelaxedDubboConfigBinder] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-08-02 20:03:39.194  INFO 7892 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'relaxedDubboConfigBinder' of type [com.alibaba.boot.dubbo.autoconfigure.RelaxedDubboConfigBinder] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-08-02 20:03:39.279  INFO 7892 --- [           main] .f.a.DubboConfigBindingBeanPostProcessor : The properties of bean [name : demo-spring-boot-dubbo-provider] have been binding by prefix of configuration properties : dubbo.application
2018-08-02 20:03:39.318  INFO 7892 --- [           main] .f.a.DubboConfigBindingBeanPostProcessor : The properties of bean [name : demo-multicast-registry] have been binding by prefix of configuration properties : dubbo.registry
2018-08-02 20:03:39.366  INFO 7892 --- [           main] .f.a.DubboConfigBindingBeanPostProcessor : The properties of bean [name : dubbo] have been binding by prefix of configuration properties : dubbo.protocol
2018-08-02 20:03:39.887  INFO 7892 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Registering beans for JMX exposure on startup
2018-08-02 20:03:39.897  INFO 7892 --- [           main] com.alibaba.dubbo.config.AbstractConfig  :  [DUBBO] The service ready on spring started. service: demo.spring.boot.dubbo.api.GreetingService, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:03:40.017  INFO 7892 --- [           main] com.alibaba.dubbo.config.AbstractConfig  :  [DUBBO] Export dubbo service demo.spring.boot.dubbo.api.GreetingService to local registry, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:03:40.017  INFO 7892 --- [           main] com.alibaba.dubbo.config.AbstractConfig  :  [DUBBO] Export dubbo service demo.spring.boot.dubbo.api.GreetingService to url dubbo://172.20.10.8:20880/demo.spring.boot.dubbo.api.GreetingService?anyhost=true&application=demo-spring-boot-dubbo-provider&bind.ip=172.20.10.8&bind.port=20880&dubbo=2.6.2&generic=false&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=7892&revision=1.0&side=provider×tamp=1533211419902&version=1.0, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:03:40.017  INFO 7892 --- [           main] com.alibaba.dubbo.config.AbstractConfig  :  [DUBBO] Register dubbo service demo.spring.boot.dubbo.api.GreetingService url dubbo://172.20.10.8:20880/demo.spring.boot.dubbo.api.GreetingService?anyhost=true&application=demo-spring-boot-dubbo-provider&bind.ip=172.20.10.8&bind.port=20880&dubbo=2.6.2&generic=false&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=7892&revision=1.0&side=provider×tamp=1533211419902&version=1.0 to registry registry://224.5.6.7:1234/com.alibaba.dubbo.registry.RegistryService?application=demo-spring-boot-dubbo-provider&dubbo=2.6.2&pid=7892®istry=multicast×tamp=1533211419902, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:03:40.169  INFO 7892 --- [           main] c.a.d.remoting.transport.AbstractServer  :  [DUBBO] Start NettyServer bind /0.0.0.0:20880, export /172.20.10.8:20880, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:03:40.185  INFO 7892 --- [           main] c.a.d.r.multicast.MulticastRegistry      :  [DUBBO] Register: dubbo://172.20.10.8:20880/demo.spring.boot.dubbo.api.GreetingService?anyhost=true&application=demo-spring-boot-dubbo-provider&dubbo=2.6.2&generic=false&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=7892&revision=1.0&side=provider×tamp=1533211419902&version=1.0, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:03:40.186  INFO 7892 --- [           main] c.a.d.r.multicast.MulticastRegistry      :  [DUBBO] Send broadcast message: register dubbo://172.20.10.8:20880/demo.spring.boot.dubbo.api.GreetingService?anyhost=true&application=demo-spring-boot-dubbo-provider&dubbo=2.6.2&generic=false&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=7892&revision=1.0&side=provider×tamp=1533211419902&version=1.0 to /224.5.6.7:1234, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:03:40.186  INFO 7892 --- [egistryReceiver] c.a.d.r.multicast.MulticastRegistry      :  [DUBBO] Receive multicast message: register dubbo://172.20.10.8:20880/demo.spring.boot.dubbo.api.GreetingService?anyhost=true&application=demo-spring-boot-dubbo-provider&dubbo=2.6.2&generic=false&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=7892&revision=1.0&side=provider×tamp=1533211419902&version=1.0 from /172.20.10.8:1234, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:03:40.188  INFO 7892 --- [           main] c.a.d.r.multicast.MulticastRegistry      :  [DUBBO] Subscribe: provider://172.20.10.8:20880/demo.spring.boot.dubbo.api.GreetingService?anyhost=true&application=demo-spring-boot-dubbo-provider&category=configurators&check=false&dubbo=2.6.2&generic=false&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=7892&revision=1.0&side=provider×tamp=1533211419902&version=1.0, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:03:40.188  INFO 7892 --- [           main] c.a.d.r.multicast.MulticastRegistry      :  [DUBBO] Send broadcast message: subscribe provider://172.20.10.8:20880/demo.spring.boot.dubbo.api.GreetingService?anyhost=true&application=demo-spring-boot-dubbo-provider&category=configurators&check=false&dubbo=2.6.2&generic=false&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=7892&revision=1.0&side=provider×tamp=1533211419902&version=1.0 to /224.5.6.7:1234, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:03:40.189  INFO 7892 --- [egistryReceiver] c.a.d.r.multicast.MulticastRegistry      :  [DUBBO] Receive multicast message: subscribe provider://172.20.10.8:20880/demo.spring.boot.dubbo.api.GreetingService?anyhost=true&application=demo-spring-boot-dubbo-provider&category=configurators&check=false&dubbo=2.6.2&generic=false&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=7892&revision=1.0&side=provider×tamp=1533211419902&version=1.0 from /172.20.10.8:1234, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:03:41.194  WARN 7892 --- [           main] c.a.d.r.multicast.MulticastRegistry      :  [DUBBO] Ignore empty notify urls for subscribe url provider://172.20.10.8:20880/demo.spring.boot.dubbo.api.GreetingService?anyhost=true&application=demo-spring-boot-dubbo-provider&category=configurators&check=false&dubbo=2.6.2&generic=false&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=7892&revision=1.0&side=provider×tamp=1533211419902&version=1.0, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:03:41.205  INFO 7892 --- [           main] p.DemoSpringBootDubboProviderApplication : Started DemoSpringBootDubboProviderApplication in 3.141 seconds (JVM running for 3.758)
2018-08-02 20:03:41.213  INFO 7892 --- [pool-1-thread-1] .d.c.e.AwaitingNonWebApplicationListener :  [Dubbo] Current Spring Boot Application is await...

3 demo-spring-boot-dubbo-consumer

3.1 POM 文件，注意添加 dubbo-spring-boot-starter 依赖



    4.0.0

    demo.spring.boot.dubbo
    demo-spring-boot-dubbo-consumer
    0.0.1-SNAPSHOT
    jar

    demo-spring-boot-dubbo-consumer
    Demo project for Spring Boot

    
        org.springframework.boot
        spring-boot-starter-parent
        2.0.4.RELEASE
         
    

    
        UTF-8
        UTF-8
        1.8
    

    
        
            org.springframework.boot
            spring-boot-starter
        
        
            com.alibaba.boot
            dubbo-spring-boot-starter
            0.2.0
        
        
            org.springframework.boot
            spring-boot-starter-test
            test
        
    

    
        
            
                org.springframework.boot
                spring-boot-maven-plugin

3.2 在配置文件 application.properties 中添加 Dubbo 配置信息，注意和 demo-spring-boot-dubbo-provider 配置文件的差异

spring.application.name=demo-spring-boot-dubbo-consumer
spring.application.version=1.0

dubbo.application.id=demo-spring-boot-dubbo-consumer
dubbo.application.name=demo-spring-boot-dubbo-consumer

dubbo.protocol.id=dubbo
dubbo.protocol.name=dubbo
dubbo.protocol.port=20880

dubbo.registry.id=demo-multicast-registry
dubbo.registry.address=multicast://224.5.6.7:1234

3.3 定义一个定时调用 RPC 服务的任务

package demo.spring.boot.dubbo.consumer;

import com.alibaba.dubbo.config.annotation.Reference;
import demo.spring.boot.dubbo.api.GreetingService;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

@Component
public class Consumer {

    @Reference(version = "${spring.application.version}",
        application = "${spring.application.id}",
        registry = "${dubbo.registry.address}")
    private GreetingService greetingService;

    @Scheduled(fixedRate = 3000)
    public void consume() {
        System.out.println(greetingService.welcome("Dubbo"));
    }
}

3.4 应用启动类开启对定时任务的支持

package demo.spring.boot.dubbo.consumer;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableScheduling;

@SpringBootApplication
@EnableScheduling
public class DemoSpringBootDubboConsumerApplication {

    public static void main(String[] args) {
        SpringApplication.run(DemoSpringBootDubboConsumerApplication.class, args);
    }
}

启动应用，从 demo-spring-boot-dubbo-consumer 日志中可以看出每 3 秒调用一次 Dubbo RPC 服务

C:\Dev\Java\jdk1.8.0_172\bin\java.exe "-javaagent:C:\Dev\JetBrains\IntelliJ IDEA 2018.1.2\lib\idea_rt.jar=51568:C:\Dev\JetBrains\IntelliJ IDEA 2018.1.2\bin" -Dfile.encoding=UTF-8 -classpath C:\Dev\Java\jdk1.8.0_172\jre\lib\charsets.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\deploy.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\access-bridge-64.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\cldrdata.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\dnsns.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\jaccess.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\jfxrt.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\localedata.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\nashorn.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\sunec.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\sunjce_provider.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\sunmscapi.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\sunpkcs11.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\ext\zipfs.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\javaws.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\jce.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\jfr.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\jfxswt.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\jsse.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\management-agent.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\plugin.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\resources.jar;C:\Dev\Java\jdk1.8.0_172\jre\lib\rt.jar;D:\JYL\DEV\IdeaProjects\demo\demo-spring-boot-dubbo-consumer\target\classes;D:\JYL\DEV\Maven\repo\org\springframework\boot\spring-boot-starter\2.0.4.RELEASE\spring-boot-starter-2.0.4.RELEASE.jar;D:\JYL\DEV\Maven\repo\org\springframework\boot\spring-boot\2.0.4.RELEASE\spring-boot-2.0.4.RELEASE.jar;D:\JYL\DEV\Maven\repo\org\springframework\spring-context\5.0.8.RELEASE\spring-context-5.0.8.RELEASE.jar;D:\JYL\DEV\Maven\repo\org\springframework\spring-aop\5.0.8.RELEASE\spring-aop-5.0.8.RELEASE.jar;D:\JYL\DEV\Maven\repo\org\springframework\spring-beans\5.0.8.RELEASE\spring-beans-5.0.8.RELEASE.jar;D:\JYL\DEV\Maven\repo\org\springframework\spring-expression\5.0.8.RELEASE\spring-expression-5.0.8.RELEASE.jar;D:\JYL\DEV\Maven\repo\org\springframework\boot\spring-boot-autoconfigure\2.0.4.RELEASE\spring-boot-autoconfigure-2.0.4.RELEASE.jar;D:\JYL\DEV\Maven\repo\org\springframework\boot\spring-boot-starter-logging\2.0.4.RELEASE\spring-boot-starter-logging-2.0.4.RELEASE.jar;D:\JYL\DEV\Maven\repo\ch\qos\logback\logback-classic\1.2.3\logback-classic-1.2.3.jar;D:\JYL\DEV\Maven\repo\ch\qos\logback\logback-core\1.2.3\logback-core-1.2.3.jar;D:\JYL\DEV\Maven\repo\org\apache\logging\log4j\log4j-to-slf4j\2.10.0\log4j-to-slf4j-2.10.0.jar;D:\JYL\DEV\Maven\repo\org\apache\logging\log4j\log4j-api\2.10.0\log4j-api-2.10.0.jar;D:\JYL\DEV\Maven\repo\org\slf4j\jul-to-slf4j\1.7.25\jul-to-slf4j-1.7.25.jar;D:\JYL\DEV\Maven\repo\javax\annotation\javax.annotation-api\1.3.2\javax.annotation-api-1.3.2.jar;D:\JYL\DEV\Maven\repo\org\springframework\spring-core\5.0.8.RELEASE\spring-core-5.0.8.RELEASE.jar;D:\JYL\DEV\Maven\repo\org\springframework\spring-jcl\5.0.8.RELEASE\spring-jcl-5.0.8.RELEASE.jar;D:\JYL\DEV\Maven\repo\org\yaml\snakeyaml\1.19\snakeyaml-1.19.jar;D:\JYL\DEV\Maven\repo\com\alibaba\boot\dubbo-spring-boot-starter\0.2.0\dubbo-spring-boot-starter-0.2.0.jar;D:\JYL\DEV\Maven\repo\com\alibaba\dubbo\2.6.2\dubbo-2.6.2.jar;D:\JYL\DEV\Maven\repo\org\javassist\javassist\3.20.0-GA\javassist-3.20.0-GA.jar;D:\JYL\DEV\Maven\repo\org\jboss\netty\netty\3.2.5.Final\netty-3.2.5.Final.jar;D:\JYL\DEV\Maven\repo\org\apache\zookeeper\zookeeper\3.4.9\zookeeper-3.4.9.jar;D:\JYL\DEV\Maven\repo\org\slf4j\slf4j-api\1.7.25\slf4j-api-1.7.25.jar;D:\JYL\DEV\Maven\repo\jline\jline\0.9.94\jline-0.9.94.jar;D:\JYL\DEV\Maven\repo\io\netty\netty\3.10.5.Final\netty-3.10.5.Final.jar;D:\JYL\DEV\Maven\repo\org\apache\curator\curator-framework\2.12.0\curator-framework-2.12.0.jar;D:\JYL\DEV\Maven\repo\org\apache\curator\curator-client\2.12.0\curator-client-2.12.0.jar;D:\JYL\DEV\Maven\repo\com\google\guava\guava\16.0.1\guava-16.0.1.jar;D:\JYL\DEV\Maven\repo\com\alibaba\boot\dubbo-spring-boot-autoconfigure\0.2.0\dubbo-spring-boot-autoconfigure-0.2.0.jar;D:\JYL\DEV\IdeaProjects\demo\demo-spring-boot-dubbo-api\target\classes demo.spring.boot.dubbo.consumer.DemoSpringBootDubboConsumerApplication
2018-08-02 20:19:01.021  INFO 17432 --- [           main] c.a.dubbo.common.logger.LoggerFactory    : using logger: com.alibaba.dubbo.common.logger.slf4j.Slf4jLoggerAdapter
2018-08-02 20:19:01.028  INFO 17432 --- [           main] a.b.d.c.e.WelcomeLogoApplicationListener : 

 :: Dubbo Spring Boot (v0.2.0) : https://github.com/apache/incubator-dubbo-spring-boot-project
 :: Dubbo (v2.6.2) : https://github.com/apache/incubator-dubbo
 :: Google group : [email protected]

2018-08-02 20:19:01.030  INFO 17432 --- [           main] e.OverrideDubboConfigApplicationListener : Dubbo Config was overridden by externalized configuration {dubbo.application.id=demo-spring-boot-dubbo-consumer, dubbo.application.name=demo-spring-boot-dubbo-consumer, dubbo.protocol.id=dubbo, dubbo.protocol.name=dubbo, dubbo.protocol.port=20880, dubbo.registry.address=multicast://224.5.6.7:1234, dubbo.registry.id=demo-multicast-registry}

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.0.4.RELEASE)

2018-08-02 20:19:01.124  INFO 17432 --- [           main] c.DemoSpringBootDubboConsumerApplication : Starting DemoSpringBootDubboConsumerApplication on LAPTOP-C375ASPB with PID 17432 (D:\JYL\DEV\IdeaProjects\demo\demo-spring-boot-dubbo-consumer\target\classes started by Ji in D:\JYL\DEV\IdeaProjects\demo)
2018-08-02 20:19:01.125  INFO 17432 --- [           main] c.DemoSpringBootDubboConsumerApplication : No active profile set, falling back to default profiles: default
2018-08-02 20:19:01.190  INFO 17432 --- [           main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@5b0abc94: startup date [Thu Aug 02 20:19:01 CST 2018]; root of context hierarchy
2018-08-02 20:19:01.616  INFO 17432 --- [           main] .a.d.c.s.c.a.DubboConfigBindingRegistrar : The dubbo config bean definition [name : demo-spring-boot-dubbo-consumer, class : com.alibaba.dubbo.config.ApplicationConfig] has been registered.
2018-08-02 20:19:01.616  INFO 17432 --- [           main] .a.d.c.s.c.a.DubboConfigBindingRegistrar : The BeanPostProcessor bean definition [com.alibaba.dubbo.config.spring.beans.factory.annotation.DubboConfigBindingBeanPostProcessor] for dubbo config bean [name : demo-spring-boot-dubbo-consumer] has been registered.
2018-08-02 20:19:01.616  INFO 17432 --- [           main] .a.d.c.s.c.a.DubboConfigBindingRegistrar : The dubbo config bean definition [name : demo-multicast-registry, class : com.alibaba.dubbo.config.RegistryConfig] has been registered.
2018-08-02 20:19:01.616  INFO 17432 --- [           main] .a.d.c.s.c.a.DubboConfigBindingRegistrar : The BeanPostProcessor bean definition [com.alibaba.dubbo.config.spring.beans.factory.annotation.DubboConfigBindingBeanPostProcessor] for dubbo config bean [name : demo-multicast-registry] has been registered.
2018-08-02 20:19:01.616  INFO 17432 --- [           main] .a.d.c.s.c.a.DubboConfigBindingRegistrar : The dubbo config bean definition [name : dubbo, class : com.alibaba.dubbo.config.ProtocolConfig] has been registered.
2018-08-02 20:19:01.621  INFO 17432 --- [           main] .a.d.c.s.c.a.DubboConfigBindingRegistrar : The BeanPostProcessor bean definition [com.alibaba.dubbo.config.spring.beans.factory.annotation.DubboConfigBindingBeanPostProcessor] for dubbo config bean [name : dubbo] has been registered.
2018-08-02 20:19:01.862  INFO 17432 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'com.alibaba.boot.dubbo.autoconfigure.DubboAutoConfiguration' of type [com.alibaba.boot.dubbo.autoconfigure.DubboAutoConfiguration$$EnhancerBySpringCGLIB$$944554c6] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-08-02 20:19:01.954  INFO 17432 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'relaxedDubboConfigBinder' of type [com.alibaba.boot.dubbo.autoconfigure.RelaxedDubboConfigBinder] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-08-02 20:19:01.958  INFO 17432 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'relaxedDubboConfigBinder' of type [com.alibaba.boot.dubbo.autoconfigure.RelaxedDubboConfigBinder] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-08-02 20:19:01.958  INFO 17432 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'relaxedDubboConfigBinder' of type [com.alibaba.boot.dubbo.autoconfigure.RelaxedDubboConfigBinder] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-08-02 20:19:02.376  INFO 17432 --- [           main] .f.a.DubboConfigBindingBeanPostProcessor : The properties of bean [name : demo-spring-boot-dubbo-consumer] have been binding by prefix of configuration properties : dubbo.application
2018-08-02 20:19:02.386  INFO 17432 --- [           main] .f.a.DubboConfigBindingBeanPostProcessor : The properties of bean [name : demo-multicast-registry] have been binding by prefix of configuration properties : dubbo.registry
2018-08-02 20:19:02.443  INFO 17432 --- [           main] c.a.d.r.multicast.MulticastRegistry      :  [DUBBO] Load registry store file C:\Users\Ji\.dubbo\dubbo-registry-demo-spring-boot-dubbo-consumer-224.5.6.7:1234.cache, data: {demo.spring.boot.dubbo.api.GreetingService:1.0=dubbo://172.20.10.8:20880/demo.spring.boot.dubbo.api.GreetingService?anyhost=true&application=demo-spring-boot-dubbo-provider&dubbo=2.6.2&generic=false&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=10680&revision=1.0&side=provider×tamp=1533211117636&version=1.0}, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:19:02.474  INFO 17432 --- [           main] c.a.d.r.multicast.MulticastRegistry      :  [DUBBO] Register: consumer://172.20.10.8/demo.spring.boot.dubbo.api.GreetingService?application=demo-spring-boot-dubbo-consumer&category=consumers&check=false&dubbo=2.6.2&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=17432&revision=1.0&side=consumer×tamp=1533212342396&version=1.0, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:19:02.474  INFO 17432 --- [           main] c.a.d.r.multicast.MulticastRegistry      :  [DUBBO] Send broadcast message: register consumer://172.20.10.8/demo.spring.boot.dubbo.api.GreetingService?application=demo-spring-boot-dubbo-consumer&category=consumers&check=false&dubbo=2.6.2&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=17432&revision=1.0&side=consumer×tamp=1533212342396&version=1.0 to /224.5.6.7:1234, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:19:02.474  INFO 17432 --- [           main] c.a.d.r.multicast.MulticastRegistry      :  [DUBBO] Subscribe: consumer://172.20.10.8/demo.spring.boot.dubbo.api.GreetingService?application=demo-spring-boot-dubbo-consumer&category=providers,configurators,routers&dubbo=2.6.2&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=17432&revision=1.0&side=consumer×tamp=1533212342396&version=1.0, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:19:02.474  INFO 17432 --- [egistryReceiver] c.a.d.r.multicast.MulticastRegistry      :  [DUBBO] Receive multicast message: register consumer://172.20.10.8/demo.spring.boot.dubbo.api.GreetingService?application=demo-spring-boot-dubbo-consumer&category=consumers&check=false&dubbo=2.6.2&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=17432&revision=1.0&side=consumer×tamp=1533212342396&version=1.0 from /172.20.10.8:1234, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:19:02.475  INFO 17432 --- [           main] c.a.d.r.multicast.MulticastRegistry      :  [DUBBO] Send broadcast message: subscribe consumer://172.20.10.8/demo.spring.boot.dubbo.api.GreetingService?application=demo-spring-boot-dubbo-consumer&category=providers,configurators,routers&dubbo=2.6.2&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=17432&revision=1.0&side=consumer×tamp=1533212342396&version=1.0 to /224.5.6.7:1234, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:19:02.475  INFO 17432 --- [egistryReceiver] c.a.d.r.multicast.MulticastRegistry      :  [DUBBO] Receive multicast message: subscribe consumer://172.20.10.8/demo.spring.boot.dubbo.api.GreetingService?application=demo-spring-boot-dubbo-consumer&category=providers,configurators,routers&dubbo=2.6.2&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=17432&revision=1.0&side=consumer×tamp=1533212342396&version=1.0 from /172.20.10.8:1234, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:19:02.476  INFO 17432 --- [egistryReceiver] c.a.d.r.multicast.MulticastRegistry      :  [DUBBO] Receive multicast message: register dubbo://172.20.10.8:20880/demo.spring.boot.dubbo.api.GreetingService?anyhost=true&application=demo-spring-boot-dubbo-provider&dubbo=2.6.2&generic=false&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=7892&revision=1.0&side=provider×tamp=1533211419902&version=1.0 from /172.20.10.8:1234, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:19:02.476  INFO 17432 --- [egistryReceiver] c.a.d.r.multicast.MulticastRegistry      :  [DUBBO] Notify urls for subscribe url consumer://172.20.10.8/demo.spring.boot.dubbo.api.GreetingService?application=demo-spring-boot-dubbo-consumer&category=providers,configurators,routers&dubbo=2.6.2&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=17432&revision=1.0&side=consumer×tamp=1533212342396&version=1.0, urls: [dubbo://172.20.10.8:20880/demo.spring.boot.dubbo.api.GreetingService?anyhost=true&application=demo-spring-boot-dubbo-provider&dubbo=2.6.2&generic=false&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=7892&revision=1.0&side=provider×tamp=1533211419902&version=1.0], dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:19:02.818  INFO 17432 --- [egistryReceiver] c.a.d.remoting.transport.AbstractClient  :  [DUBBO] Successed connect to server /172.20.10.8:20880 from NettyClient 172.20.10.8 using dubbo version 2.6.2, channel is NettyChannel [channel=[id: 0x01d8a8f3, /172.20.10.8:51573 => /172.20.10.8:20880]], dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:19:02.819  INFO 17432 --- [egistryReceiver] c.a.d.remoting.transport.AbstractClient  :  [DUBBO] Start NettyClient LAPTOP-C375ASPB/172.20.10.8 connect to the server /172.20.10.8:20880, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:19:02.871  INFO 17432 --- [           main] c.a.d.r.multicast.MulticastRegistry      :  [DUBBO] Notify urls for subscribe url consumer://172.20.10.8/demo.spring.boot.dubbo.api.GreetingService?application=demo-spring-boot-dubbo-consumer&category=providers,configurators,routers&dubbo=2.6.2&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=17432&revision=1.0&side=consumer×tamp=1533212342396&version=1.0, urls: [dubbo://172.20.10.8:20880/demo.spring.boot.dubbo.api.GreetingService?anyhost=true&application=demo-spring-boot-dubbo-provider&dubbo=2.6.2&generic=false&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=7892&revision=1.0&side=provider×tamp=1533211419902&version=1.0], dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:19:02.878  INFO 17432 --- [           main] com.alibaba.dubbo.config.AbstractConfig  :  [DUBBO] Refer dubbo service demo.spring.boot.dubbo.api.GreetingService from url multicast://224.5.6.7:1234/com.alibaba.dubbo.registry.RegistryService?anyhost=true&application=demo-spring-boot-dubbo-consumer&check=false&dubbo=2.6.2&generic=false&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=17432®ister.ip=172.20.10.8&remote.timestamp=1533211419902&revision=1.0&side=consumer×tamp=1533212342396&version=1.0, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:19:02.886  INFO 17432 --- [           main] c.a.d.c.s.b.f.a.ReferenceBeanBuilder     :  has been built.
2018-08-02 20:19:02.921  INFO 17432 --- [           main] .f.a.DubboConfigBindingBeanPostProcessor : The properties of bean [name : dubbo] have been binding by prefix of configuration properties : dubbo.protocol
2018-08-02 20:19:03.108  INFO 17432 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Registering beans for JMX exposure on startup
2018-08-02 20:19:03.123  INFO 17432 --- [           main] s.a.ScheduledAnnotationBeanPostProcessor : No TaskScheduler/ScheduledExecutorService bean found for scheduled processing
2018-08-02 20:19:03.134  INFO 17432 --- [           main] c.DemoSpringBootDubboConsumerApplication : Started DemoSpringBootDubboConsumerApplication in 2.446 seconds (JVM running for 3.146)
2018-08-02 20:19:03.139  INFO 17432 --- [pool-1-thread-1] .d.c.e.AwaitingNonWebApplicationListener :  [Dubbo] Current Spring Boot Application is await...
Welcome Dubbo at 2018-08-02T20:19:03.234
Welcome Dubbo at 2018-08-02T20:19:06.149
Welcome Dubbo at 2018-08-02T20:19:09.137
Welcome Dubbo at 2018-08-02T20:19:12.136
Welcome Dubbo at 2018-08-02T20:19:15.140
Welcome Dubbo at 2018-08-02T20:19:18.132
Welcome Dubbo at 2018-08-02T20:19:21.137
Welcome Dubbo at 2018-08-02T20:19:24.136
......

再看一下 demo-spring-boot-dubbo-provider 工程日志打印，也有 Dubbo RPC 服务被调用的记录

......
2018-08-02 20:03:41.205  INFO 7892 --- [           main] p.DemoSpringBootDubboProviderApplication : Started DemoSpringBootDubboProviderApplication in 3.141 seconds (JVM running for 3.758)
2018-08-02 20:03:41.213  INFO 7892 --- [pool-1-thread-1] .d.c.e.AwaitingNonWebApplicationListener :  [Dubbo] Current Spring Boot Application is await...
2018-08-02 20:19:02.474  INFO 7892 --- [egistryReceiver] c.a.d.r.multicast.MulticastRegistry      :  [DUBBO] Receive multicast message: register consumer://172.20.10.8/demo.spring.boot.dubbo.api.GreetingService?application=demo-spring-boot-dubbo-consumer&category=consumers&check=false&dubbo=2.6.2&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=17432&revision=1.0&side=consumer×tamp=1533212342396&version=1.0 from /172.20.10.8:1234, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:19:02.475  INFO 7892 --- [egistryReceiver] c.a.d.r.multicast.MulticastRegistry      :  [DUBBO] Receive multicast message: subscribe consumer://172.20.10.8/demo.spring.boot.dubbo.api.GreetingService?application=demo-spring-boot-dubbo-consumer&category=providers,configurators,routers&dubbo=2.6.2&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=17432&revision=1.0&side=consumer×tamp=1533212342396&version=1.0 from /172.20.10.8:1234, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:19:02.475  INFO 7892 --- [egistryReceiver] c.a.d.r.multicast.MulticastRegistry      :  [DUBBO] Send broadcast message: register dubbo://172.20.10.8:20880/demo.spring.boot.dubbo.api.GreetingService?anyhost=true&application=demo-spring-boot-dubbo-provider&dubbo=2.6.2&generic=false&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=7892&revision=1.0&side=provider×tamp=1533211419902&version=1.0 to /224.5.6.7:1234, dubbo version: 2.6.2, current host: 172.20.10.8
2018-08-02 20:19:02.476  INFO 7892 --- [egistryReceiver] c.a.d.r.multicast.MulticastRegistry      :  [DUBBO] Receive multicast message: register dubbo://172.20.10.8:20880/demo.spring.boot.dubbo.api.GreetingService?anyhost=true&application=demo-spring-boot-dubbo-provider&dubbo=2.6.2&generic=false&interface=demo.spring.boot.dubbo.api.GreetingService&methods=welcome&pid=7892&revision=1.0&side=provider×tamp=1533211419902&version=1.0 from /172.20.10.8:1234, dubbo version: 2.6.2, current host: 172.20.10.8
Welcome Dubbo at 2018-08-02T20:19:03.234
Welcome Dubbo at 2018-08-02T20:19:06.149
Welcome Dubbo at 2018-08-02T20:19:09.137
Welcome Dubbo at 2018-08-02T20:19:12.136
Welcome Dubbo at 2018-08-02T20:19:15.140
Welcome Dubbo at 2018-08-02T20:19:18.132
......

附：工程目录

Spring Boot 集成 Dubbo_第1张图片
image.png

Spring Boot 集成 Dubbo_第2张图片
image.png

官方参考：
Apache Dubbo
GitHub apache/incubator-dubbo
GitHub apache/incubator-dubbo-spring-boot-project

转载：https://www.jianshu.com/p/4e48cfe7e157

你可能感兴趣的:(Spring Boot 集成 Dubbo)

  • SpringBoot中Server层以及Mapper层常用注解 π大星的日常 javajava-rabbitmq
    最近看了一下SpringBoot2的课程，发现好多的注解并不是很了解，只是简单的会用，但是真是发生的作用却不知道，最近花了一些时间把这些注解进行了一下整理，针对不同的层级进行了细致的划分，最近几天会依次给大家更新关于注解的内容，对大家有帮助的话点赞支持一下哦！4.Service层注解@Service注解一般写在业务层的接口实现类上，而不是接口上。4.1@Service@Service:@Servi
  • 解决注入mapper报红的问题 Jyannis springSpringBootspringmybatisspringbootjavabean
    在spring系列集成mybatis时，我们经常遇到这样的问题：明明注入没有问题，但是intellijidea会报红。这是因为我们没有手动在代码里把mapper接口注入spring容器中，而@Autowired注入方式默认要求注入的对象必须是在spring容器中存在的。所以idea认为这里的userMapper不存在，而用户（我们）选择注入，是一种错误操作，就报红。那么怎么解决这个问题呢？以下提供
  • [QMT量化交易小白入门]-二十二、deepseek+cline+vscode,让小白使用miniQMT量化交易成为可能 python自动化工具 QMT量化交易小白入门vscodeide编辑器
    本专栏主要是介绍QMT的基础用法，常见函数，写策略的方法，也会分享一些量化交易的思路，大概会写100篇左右。QMT的相关资料较少，在使用过程中不断的摸索，遇到了一些问题，记录下来和大家一起沟通，共同进步，自己淋过雨了，希望大家都有一把伞。文章目录相关阅读DeepSeek新用户注册cline集成指令测试相关阅读小白也能做量化：零门槛QMT、Ptrade免费送量化交易入门：如何在QMT中配置Pytho
  • @Mapper、@Service以及@Component MHP小喇叭 java开发语言
    在Spring框架中，@Mapper、@Service和@Component都是用于标记类的注解，但它们的用途和适用场景不同，以下是它们的核心区别和关系：1.@Component作用：Spring的通用组件注解，标记一个类为Spring管理的Bean，会被自动扫描并注入到容器中。适用场景：适用于任何需要被Spring管理的组件（如工具类、非业务层类）。示例：@Componentpublicclas
  • 国产芯片替代方案：解析沁恒USB桥接芯片转四串/双串/单串口 禾川兴 13242400688 沁恒直替系列单片机嵌入式硬件桥接模式
    沁恒国产USB桥接芯片：高兼容性方案加速国产化替代随着USB通信接口在工业控制、消费电子、智能设备等领域的广泛应用，国产芯片厂商沁恒微电子（WCH）推出了一系列高性能USB转串口芯片，以高集成度、低成本、全兼容设计实现对国际品牌芯片的完美替代。本文针对沁恒多款USB桥接芯片与国际主流型号进行对比，展现其技术竞争力与国产化价值。‌一、沁恒USB桥接芯片核心优势‌‌全兼容设计‌硬件引脚定义、封装尺寸、
  • 深入理解Spring Cloud中的服务发现与注册 weixin_836869520 springcloud服务发现spring
    深入理解SpringCloud中的服务发现与注册大家好，我是微赚淘客系统3.0的小编，也是冬天不穿秋裤，天冷也要风度的程序猿！服务发现与注册的重要性在微服务架构中，服务发现与注册是确保服务间通信的关键。传统的单体应用程序可能使用硬编码的方式调用其他服务，但在微服务环境中，服务的地址和实例可能动态变化，因此需要一种机制来动态地管理和发现服务。1.SpringCloud与EurekaSpringClo
  • Spring Cloud Eureka快速搭建：微服务注册中心的配置步骤 勤劳兔码农 springcloudeureka微服务
    SpringCloudEureka快速搭建：微服务注册中心的配置步骤目录引言SpringCloud微服务架构概述什么是Eureka？EurekaServer的搭建步骤4.1创建EurekaServer项目4.2配置EurekaServer4.3启动EurekaServer4.4多实例EurekaServer的搭建EurekaClient的配置步骤5.1创建EurekaClient项目5.2配置Eu
  • 计算机毕业设计springboot教务管理系统 0k1c1源码+系统+程序+lw文档+部署 呦呦网络 springbootjavamysql
    计算机毕业设计springboot教务管理系统0k1c1源码+系统+程序+lw文档+部署计算机毕业设计springboot教务管理系统0k1c1源码+系统+程序+lw文档+部署本源码技术栈：项目架构：B/S架构开发语言：Java语言开发软件：ideaeclipse前端技术：Layui、HTML、CSS、JS、JQuery等技术后端技术：JAVA运行环境：Win10、JDK1.8数据库：MySQL5
  • c++与c语言的区别是什么？ pythoncainiao221 c++c语言开发语言
    1、类型不同C语言是面向过程的，而C++是面向对象的。2、函数库不同C语言的标准的函数库很松散，而C++对于大多数的函数都是集成的很紧密。3、结构不同C语言中结构只有成员变量，而在C++中结构中，可以有成员变量和成员函数。它们的区别是c++是在C语言基础上发展起来的，根据开发过程中遇到的需求，它引入了很多新的特性。如果你不走C/C++方向，直接学习Java就可以了，相同的待遇下，选择简单的更好。当
  • 【大模型开发】大模型转换为 NCNN 格式并在 微信小程序 中进行调用 云博士的AI课堂 大模型技术开发与实践哈佛博后带你玩转机器学习深度学习微信小程序小程序NCNN小程序调用大模型大模型部署大模型优化部署微信小程序
    以下内容将介绍如何将大模型转换为NCNN格式并在微信小程序中进行调用。我们会从整体流程、模型转换工具、NCNNWebAssembly（WASM）编译与集成、小程序前端代码示例等方面进行详细讲解，并在最后给出优化方向与未来建议。目录背景与整体流程概述准备工作2.1常见模型格式与转换思路2.2环境与工具安装模型转换为NCNN格式3.1以ONNX模型为例3.2使用onnx2ncnn工具NCNN在微信小程
  • Lua语言的计算机体系结构 凌嘉遥 包罗万象golang开发语言后端
    Lua语言的计算机体系结构引言Lua是一种轻量级、高效且可扩展的脚本语言，最早由巴西的一个小组开发。它的设计目标是为嵌入式系统提供一个简洁的语言，从而使开发者能够在不同的应用程序中方便地进行扩展和集成。尽管Lua本身是一种面向过程的语言，但它也支持面向对象编程、函数式编程等多种编程范式。因此，研究Lua的计算机体系结构，不仅能帮助我们理解Lua如何实现其功能，还能为其他编程语言的设计与实现提供参考
  • Spring Boot 脚手架搭建：新姿势 墨瑾轩 一起学学Java【一】springboot后端java
    关注墨瑾轩，带你探索编程的奥秘！超萌技术攻略，轻松晋级编程高手技术宝库已备好，就等你来挖掘订阅墨瑾轩，智趣学习不孤单即刻启航，编程之旅更有趣‍刨根问底：脚手架是什么？‍嘿，小伙伴们！今天咱们要聊的是如何搭建一个既漂亮又实用的SpringBoot脚手架。脚手架就像是盖房子时搭起的架子，它能帮助我们快速构建出项目的骨架，让我们可以更专注于业务逻辑的实现。那么，如何搭建这样一个脚手架呢？别急，咱们一步一
  • SpringBoot实践（三十二）：5分钟搭建springboot单体应用开发框架 A叶子叶 #SpringBoot与微服务java开发语言
    熟悉语言和开发工具上基础快速使用框架构建应用是个机械工作，5分钟完成开发准备工作，没有冗余动作。目录准备工作开发框架搭建spring初始化常规依赖其他依赖规范化开发目录结构依赖适配代码生成器响应体封装github代码准备工作后端开发需要数据持久化，数据库使用mysql，这也是生产环境大部分的选择，本地开发如果没有mysql可以直接在idea上创建h2数据库，具体创建方式可以参考：使用IDEA创建H
  • go python 比较 devops_5 大 DevOps 工具，你用过几个？ weixin_39692271 gopython比较devops
    DevOps的概念在软件开发行业中逐渐流行起来。越来越多的团队希望实现产品的敏捷开发，DevOps使一切成为可能。有了DevOps，团队可以定期发布代码、自动化部署、并将持续集成/持续交付作为发布过程的一部分。虽然DevOps背后有各种各样的概念，但幸好有一些工具可以让你更容易地理解和实现。在本文中，你将了解这些工具，并将它们作为软件发布/维护工具包工作的一部分开始使用。DevOps有很多可使用的
  • Feign性能调优 ௸྄ིོུ倾心ღ᭄ᝰꫛꫀꪝ
    Feign性能调优测试demo地址:https://gitee.com/bjrts/spring-cloud-study-demo/tree/feign/父项目pom4.0.0com.baojiarenfeignpom1.0-SNAPSHOTeureka-servereureka-server02service-providerservice-provider02service-consumers
  • AWS DevOps 面试问题及答案 m0_65697474 1024程序员节
    常规AWSDevOps问题什么是DevOps？DevOps是一套集成软件开发(Dev)和IT运营(Ops)的实践，旨在缩短开发生命周期并根据业务目标频繁提供功能、修复和更新。使用AWS进行DevOps有哪些好处？AWS提供弹性计算云(EC2)、弹性容器服务(ECS)和ElasticBeanstalk等灵活服务，可帮助自动化和扩展开发和部署管道。功能包括可扩展性、自动化、CI/CD、基础设施即代码(
  • Agora-Uniapp-SDK 使用指南 章瑗笛
    Agora-Uniapp-SDK使用指南Agora-Uniapp-SDK项目地址:https://gitcode.com/gh_mirrors/ag/Agora-Uniapp-SDK1.项目目录结构及介绍Agora-Uniapp-SDK是一个基于Uni-app与AgoraAndroid和iOS视频SDK实现的集成库，它专门设计用于简化在uni-app项目中集成Agora音视频功能的过程。以下是其主
  • Spring Boot 多级缓存实战：基于 Redis+Redisson 构建高并发解决方案 Isaac_Gao 缓存springbootredis
    SpringBoot多级缓存实战：基于Redis+Redisson构建高并发解决方案本文适合人群：中高级Java开发工程师、系统架构师、对高并发场景优化感兴趣的技术人员一、为什么需要多级缓存？在百万级并发的电商系统中，我们曾遇到这样的性能瓶颈：本地缓存导致各节点数据不一致单纯依赖Redis造成带宽瓶颈缓存雪崩导致DB被打挂多级缓存架构通过结合本地缓存与分布式缓存的优势，实现了：热点数据纳秒级访问分
  • Dubbo、SpringCloud框架学习 种豆走天下 dubbospringcloud学习
    学习Dubbo和SpringCloud框架是微服务架构的一个重要部分。这两个框架在分布式系统中起着重要的作用，分别是阿里巴巴和Spring团队开发的。下面我将为你提供一些基础知识和学习路线，帮助你更好地理解和掌握这两个框架。1.Dubbo框架学习1.1什么是DubboDubbo是阿里巴巴开源的一款高性能的微服务框架。它提供了RPC（远程过程调用）、服务注册与发现、负载均衡、容错、监控等功能。Dub
  • Java语言的WebSocket 穆骊瑶 包罗万象golang开发语言后端
    Java语言的WebSocket详解目录引言WebSocket概述2.1WebSocket的工作原理2.2WebSocket的优势Java中WebSocket的实现3.1JavaEE的WebSocketAPI3.2使用SpringBoot实现WebSocketWebSocket的应用场景WebSocket的优缺点总结1.引言在现代Web开发中，实时通信成为了一个关键需求。传统的HTTP协议是基于请
  • Spring AOP、Java Agent 与 ASM 的作用和区别 潇凝子潇 javaspring后端
    SpringAOP、JavaAgent与ASM的作用和区别1.作用技术作用典型应用场景AOP通过分离横切关注点（如日志、事务、权限），在方法调用前后动态注入代码，实现非侵入式功能增强。SpringAOP（基于动态代理）、AspectJ（编译时/运行时增强）JavaAgent基于JVM的InstrumentationAPI，在类加载时或运行时修改字节码，支持对全量类的监控或增强。性能监控（如APM工
  • 【人工智能】Model Context Protocol (MCP) 是一个开放协议，标准化了应用程序向大型语言模型（LLMs）提供上下文的方式 本本本添哥 013-AIGC人工智能大模型人工智能语言模型php
    一、ModelContextProtocol(MCP)概述MCP，ModelContextProtocolMCP，是一个开放协议。MCP，标准化了应用程序向大型语言模型（LLMs）提供上下文的方式。‌MCP，旨在标准化应用程序如何为大型语言模型（LLM）提供上下文信息。MCP，提供了一个标准的接口，使得LLM可以无缝集成各种外部数据源和工具，从而扩展其能力和应用场景。二、MCP的定义和作用MCP定
  • 【从零开始学习计算机科学】数字逻辑（四）数字系统设计 贫苦游商 学习数字逻辑verilog数字系统HDL数字电路FPGA
    【从零开始学习计算机科学】数字逻辑（四）数字系统设计数字系统设计硬件描述语言HDL（HardwareDescriptionLanguage）VerilogHDL的起源与发展HDL软核、固核和硬核的重用HDL的应用数字系统设计实现数字系统设计一个数字集成电路的可以从不同的层次（系统级、算法级、寄存器传输级、门级、开关级）以及不同的领域（行为领域、结构领域、物理领域）进行描述。三个领域主要含义如下：行
  • 大模型系列——正式推出 Spring AI MCP：用于 MCP（模型上下文协议）的 Java SDK 不二人生 大模型人工智能大模型
    大模型系列——正式推出SpringAIMCP：用于MCP（模型上下文协议）的JavaSDK我们很高兴推出SpringAIMCP，它是模型上下文协议（ModelContextProtocol，MCP）的强大JavaSDK实现。SpringAI生态系统的这一新成员为Java平台带来了标准化的AI模型集成能力。MCP是什么？模型上下文协议（MCP）是一种开放式协议，它规范了应用程序为大型语言模型（LLM
  • MCP（Model Context Protocol）模型上下文协议 理论篇1 - 架构 AIQL MCP(ModelContextProtocol)架构ai人工智能MCP
    核心架构理解MCP如何连接客户端、服务器和LLM模型上下文协议(MCP)建立在灵活、可扩展的架构之上，能够实现LLM应用程序和集成之间的无缝通信。本文档涵盖了核心架构组件和概念。概述MCP采用客户端-服务器架构，其中：主机(Hosts)是发起连接的LLM应用程序（例如DesktopApp或IDE）。客户端(Clients)在主机应用程序内部与服务器保持1对1的连接。服务器(Servers)为客户端
  • Java实战：Spring Boot application.yml配置文件详解 web_13233421436 面试学习路线阿里巴巴javaspringboot网络
    本文将详细介绍SpringBootapplication.yml配置文件的使用和配置项。我们将探讨application.yml文件的基本概念，以及如何使用它来配置SpringBoot应用程序的各个方面。此外，我们将通过具体的示例来展示如何配置不同的SpringBoot组件，如数据源、数据库、缓存、邮件服务等。本文适合希望深入了解SpringBoot配置文件的开发者阅读。一、引言在SpringBo
  • Spring-Boot学习笔记 戴帽子的小熊猫 学习笔记学习笔记springboot
    这个笔记是在自己学习的过程中根据实际用到的和学到的整理出来的，可能会有缺失，错误等，主要是给激励自己学习，遇到写不下去的情况给自己一个参考，请各位大佬发现问题提出问题时能嘴下留情，也希望多提建议，谢谢。本笔记长期更新（更新日期2024年9月21日）目录第1章.固定格式参考1.1application.yml1.2mapper.xml(详细操作见另一个文件[XML数据库操作笔记]())1.3appl
  • 面向服务的诊断 SOVD（Service-Oriented Vehicle Diagnostics）AUTOSAR AP R24-11 aFakeProgramer APAUTOSAR#APAUTOSAR新标准解读系列AUTOSARSOVD
    AUTOSAR_AP_EXP_SOVD导读：ASAMSOVD与AUTOSAR自适应平台的集成ASAMSOVD简介：ASAMSOVD（面向服务的车辆诊断）是一个较新的诊断标准，旨在解决当前诊断协议（如UDS）面临的挑战。SOVD是一个自我解释的协议，不依赖于外部ODX数据描述，使用现代技术（如HTTPS）实现。它支持远程、接近和车内诊断用例，并包含UDS作为子集，同时支持HPC用例。SOVD与AUT
  • 【商城实战(38)】Spring Boot：从本地事务到分布式事务，商城数据一致性的守护之旅 奔跑吧邓邓子 商城实战springboot分布式本地事务分布式事务商城实战
    【商城实战】专栏重磅来袭！这是一份专为开发者与电商从业者打造的超详细指南。从项目基础搭建，运用uniapp、ElementPlus、SpringBoot搭建商城框架，到用户、商品、订单等核心模块开发，再到性能优化、安全加固、多端适配，乃至运营推广策略，102章内容层层递进。无论是想深入钻研技术细节，还是探寻商城运营之道，本专栏都能提供从0到1的系统讲解，助力你打造独具竞争力的电商平台，开启电商实战
  • 【商城实战(37)】Spring Boot配置优化：解锁高效商城开发密码 奔跑吧邓邓子 商城实战springboot后端java商城实战配置优化
    【商城实战】专栏重磅来袭！这是一份专为开发者与电商从业者打造的超详细指南。从项目基础搭建，运用uniapp、ElementPlus、SpringBoot搭建商城框架，到用户、商品、订单等核心模块开发，再到性能优化、安全加固、多端适配，乃至运营推广策略，102章内容层层递进。无论是想深入钻研技术细节，还是探寻商城运营之道，本专栏都能提供从0到1的系统讲解，助力你打造独具竞争力的电商平台，开启电商实战
  • Algorithm 香水浓 javaAlgorithm
    冒泡排序 public static void sort(Integer[] param) { for (int i = param.length - 1; i > 0; i--) { for (int j = 0; j < i; j++) { int current = param[j]; int next = param[j + 1];
  • mongoDB 复杂查询表达式 开窍的石头 mongodb
    1:count    Pg: db.user.find().count();    统计多少条数据 2:不等于$ne    Pg: db.user.find({_id:{$ne:3}},{name:1,sex:1,_id:0});    查询id不等于3的数据。 3：大于$gt $gte(大于等于) &n
  • Jboss Java heap space异常解决方法, jboss OutOfMemoryError : PermGen space 0624chenhong jvmjboss
    转自 http://blog.csdn.net/zou274/article/details/5552630 解决办法： window->preferences->java->installed jres->edit jre 把default vm arguments 的参数设为-Xms64m -Xmx512m ----------------
  • 文件上传 下载 解析 相对路径 不懂事的小屁孩 文件上传
    有点坑吧，弄这么一个简单的东西弄了一天多，身边还有大神指导着，网上各种百度着。 下面总结一下遇到的问题： 文件上传，在页面上传的时候，不要想着去操作绝对路径，浏览器会对客户端的信息进行保护，避免用户信息收到攻击。 在上传图片，或者文件时，使用form表单来操作。 前台通过form表单传输一个流到后台，而不是ajax传递参数到后台，代码如下: <form action=&
  • 怎么实现qq空间批量点赞 换个号韩国红果果 qq
    纯粹为了好玩！！ 逻辑很简单 1 打开浏览器console；输入以下代码。 先上添加赞的代码 var tools={}; //添加所有赞 function init(){ document.body.scrollTop=10000; setTimeout(function(){document.body.scrollTop=0;},2000);//加
  • 判断是否为中文 灵静志远 中文
    方法一： public class Zhidao { public static void main(String args[]) { String s = "sdf灭礌 kjl d{';\fdsjlk是"; int n=0; for(int i=0; i<s.length(); i++) { n = (int)s.charAt(i); if((
  • 一个电话面试后总结 a-john 面试
    今天，接了一个电话面试，对于还是初学者的我来说，紧张了半天。 面试的问题分了层次，对于一类问题，由简到难。自己觉得回答不好的地方作了一下总结：   在谈到集合类的时候，举几个常用的集合类，想都没想，直接说了list,map。   然后对list和map分别举几个类型：   list方面：ArrayList,LinkedList。在谈到他们的区别时，愣住了
  • MSSQL中Escape转义的使用 aijuans MSSQL
    IF OBJECT_ID('tempdb..#ABC') is not null drop table tempdb..#ABC create table #ABC ( PATHNAME NVARCHAR(50) ) insert into #ABC SELECT N'/ABCDEFGHI' UNION ALL SELECT N'/ABCDGAFGASASSDFA' UNION ALL
  • 一个简单的存储过程 asialee mysql存储过程构造数据批量插入
               今天要批量的生成一批测试数据，其中中间有部分数据是变化的，本来想写个程序来生成的，后来想到存储过程就可以搞定，所以随手写了一个，记录在此：            DELIMITER $$ DROP PROCEDURE IF EXISTS inse
  • annot convert from HomeFragment_1 to Fragment 百合不是茶 android导包错误
    创建了几个类继承Fragment, 需要将创建的类存储在ArrayList<Fragment>中; 出现不能将new 出来的对象放到队列中,原因很简单;     创建类时引入包是:import android.app.Fragment;      创建队列和对象时使用的包是:import android.support.v4.ap
  • Weblogic10两种修改端口的方法 bijian1013 weblogic端口号配置管理config.xml
    一.进入控制台进行修改    1.进入控制台:  http://127.0.0.1:7001/console     2.展开左边树菜单         域结构->环境->服务器-->点击AdminServer(管理) &
  • mysql 操作指令 征客丶 mysql
    一、连接mysql 进入 mysql 的安装目录； $ bin/mysql -p [host IP 如果是登录本地的mysql 可以不写 -p 直接 -u] -u [userName] -p 输入密码，回车，接连； 二、权限操作［如果你很了解mysql数据库后，你可以直接去修改系统表，然后用 mysql> flush privileges; 指令让权限生效］ 1、赋权 mys
  • 【Hive一】Hive入门 bit1129 hive
    Hive安装与配置 Hive的运行需要依赖于Hadoop，因此需要首先安装Hadoop2.5.2，并且Hive的启动前需要首先启动Hadoop。   Hive安装和配置的步骤   1. 从如下地址下载Hive0.14.0   http://mirror.bit.edu.cn/apache/hive/    2.解压hive，在系统变
  • ajax 三种提交请求的方法 BlueSkator Ajaxjqery
    1、ajax 提交请求 $.ajax({ type:"post", url : "${ctx}/front/Hotel/getAllHotelByAjax.do", dataType : "json", success : function(result) { try { for(v
  • mongodb开发环境下的搭建入门 braveCS 运维
      linux下安装mongodb 1）官网下载mongodb-linux-x86_64-rhel62-3.0.4.gz 2）linux 解压  gzip -d mongodb-linux-x86_64-rhel62-3.0.4.gz; mv mongodb-linux-x86_64-rhel62-3.0.4 mongodb-linux-x86_64-rhel62-
  • 编程之美-最短摘要的生成 bylijinnan java数据结构算法编程之美
    import java.util.HashMap; import java.util.Map; import java.util.Map.Entry; public class ShortestAbstract { /** * 编程之美 最短摘要的生成 * 扫描过程始终保持一个[pBegin,pEnd]的range,初始化确保[pBegin,pEnd]的ran
  • json数据解析及typeof chengxuyuancsdn jstypeofjson解析
    // json格式 var people='{"authors": [{"firstName": "AAA","lastName": "BBB"},' +' {"firstName": "CCC&
  • 流程系统设计的层次和目标 comsci 设计模式数据结构sql框架脚本
                                  流程系统设计的层次和目标  
  • RMAN List和report 命令 daizj oraclelistreportrman
    LIST 命令 使用RMAN LIST 命令显示有关资料档案库中记录的备份集、代理副本和映像副本的 信息。使用此命令可列出： • RMAN 资料档案库中状态不是AVAILABLE 的备份和副本 • 可用的且可以用于还原操作的数据文件备份和副本 • 备份集和副本，其中包含指定数据文件列表或指定表空间的备份 • 包含指定名称或范围的所有归档日志备份的备份集和副本 • 由标记、完成时间、可
  • 二叉树:红黑树 dieslrae 二叉树
        红黑树是一种自平衡的二叉树,它的查找,插入,删除操作时间复杂度皆为O(logN),不会出现普通二叉搜索树在最差情况时时间复杂度会变为O(N)的问题.     红黑树必须遵循红黑规则,规则如下     1、每个节点不是红就是黑。     2、根总是黑的  &
  • C语言homework3，7个小题目的代码 dcj3sjt126com c
    1、打印100以内的所有奇数。 # include <stdio.h> int main(void) { int i; for (i=1; i<=100; i++) { if (i%2 != 0) printf("%d ", i); } return 0; }  2、从键盘上输入10个整数，
  • 自定义按钮, 图片在上, 文字在下, 居中显示 dcj3sjt126com 自定义
    #import <UIKit/UIKit.h> @interface MyButton : UIButton -(void)setFrame:(CGRect)frame ImageName:(NSString*)imageName Target:(id)target Action:(SEL)action Title:(NSString*)title Font:(CGFloa
  • MySQL查询语句练习题，测试足够用了 flyvszhb sqlmysql
    http://blog.sina.com.cn/s/blog_767d65530101861c.html 1.创建student和score表 CREATE  TABLE  student ( id  INT(10)  NOT NULL  UNIQUE  PRIMARY KEY  , name  VARCHAR
  • 转：MyBatis Generator 详解 happyqing mybatis
      MyBatis Generator 详解 http://blog.csdn.net/isea533/article/details/42102297   MyBatis Generator详解 http://git.oschina.net/free/Mybatis_Utils/blob/master/MybatisGeneator/MybatisGeneator.
  • 让程序员少走弯路的14个忠告 jingjing0907 工作计划学习
      无论是谁，在刚进入某个领域之时，有再大的雄心壮志也敌不过眼前的迷茫：不知道应该怎么做，不知道应该做什么。下面是一名软件开发人员所学到的经验，希望能对大家有所帮助   1.不要害怕在工作中学习。 只要有电脑，就可以通过电子阅读器阅读报纸和大多数书籍。如果你只是做好自己的本职工作以及分配的任务，那是学不到很多东西的。如果你盲目地要求更多的工作，也是不可能提升自己的。放
  • nginx和NetScaler区别 流浪鱼 nginx
    NetScaler是一个完整的包含操作系统和应用交付功能的产品，Nginx并不包含操作系统，在处理连接方面，需要依赖于操作系统，所以在并发连接数方面和防DoS攻击方面，Nginx不具备优势。 2.易用性方面差别也比较大。Nginx对管理员的水平要求比较高，参数比较多，不确定性给运营带来隐患。在NetScaler常见的配置如健康检查，HA等，在Nginx上的配置的实现相对复杂。 3.策略灵活度方
  • 第11章 动画效果（下） onestopweb 动画
    index.html <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/
  • FAQ - SAP BW BO roadmap blueoxygen BOBW
    http://www.sdn.sap.com/irj/boc/business-objects-for-sap-faq   Besides, I care that how to integrate tightly.   By the way, for BW consultants, please just focus on Query Designer which i
  • 关于java堆内存溢出的几种情况 tomcat_oracle javajvmjdkthread
    【情况一】： 　　 java.lang.OutOfMemoryError: Java heap space：这种是java堆内存不够，一个原因是真不够，另一个原因是程序中有死循环； 　　如果是java堆内存不够的话，可以通过调整JVM下面的配置来解决： 　　<jvm-arg>-Xms3062m</jvm-arg> 　　<jvm-arg>-Xmx
  • Manifest.permission_group权限组 阿尔萨斯 Permission
    结构 继承关系 public static final class Manifest.permission_group extends Object java.lang.Object android. Manifest.permission_group 常量 ACCOUNTS 直接通过统计管理器访问管理的统计 COST_MONEY可以用来让用户花钱但不需要通过与他们直接牵涉的权限 D
按字母分类： ABCDEFGHIJKLMNOPQRSTUVWXYZ其他