dubbo注解配置简单学习

作用

    解决rpc项目中项目之间的调用问题.

原理

    消费服务模式.

demo(基于SpringBoot)

    maven包:

        
            org.springframework.boot
            spring-boot-starter
        
        
            org.springframework.boot
            spring-boot-starter-web
        
        
            org.springframework.boot
            spring-boot-starter-test
            test
        
        
            org.springframework.boot
            spring-boot-starter-aop
        
        
            
            
        
        
            com.alibaba
            dubbo
            2.5.7
        
        
            org.apache.curator
            curator-recipes
            4.0.0
        
        
            org.apache.zookeeper
            zookeeper
            3.5.3-beta
        
    
    
        
            
                org.springframework.boot
                spring-boot-dependencies
                ${spring-boot.version}
                pom
                import
            
        
    

    provider:服务提供方

        springApplication.java(扫描服务包)

import com.alibaba.dubbo.config.spring.context.annotation.DubboComponentScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
@DubboComponentScan(basePackages = "com.guanheng.service")
public class ApplicationBooter {
    public static void main(String[] args) throws Exception {
        SpringApplication application = new SpringApplication(ApplicationBooter.class);
        application.run(args);
    }
}

configuretion.java(bean注入)

package com.guanheng;

import com.alibaba.dubbo.config.ApplicationConfig;
import com.alibaba.dubbo.config.RegistryConfig;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

@Configuration
public class ApplicationConfiguretion extends WebMvcConfigurerAdapter{
    @Bean
    public ApplicationConfig applicationConfig() {
        ApplicationConfig applicationConfig = new ApplicationConfig();
        applicationConfig.setName("provider-test");
        return applicationConfig;
    }

    @Bean
    public RegistryConfig registryConfig() {
        RegistryConfig registryConfig = new RegistryConfig();
        registryConfig.setAddress("zookeeper://127.0.0.1:2181");
        registryConfig.setClient("curator");
        return registryConfig;
    }
}

 

serviceimpl.java(服务类)

 

package com.guanheng.service.impl;

import com.alibaba.dubbo.config.annotation.Service;
import com.guanheng.service.AnnotateService;

@Service(timeout = 5000)
public class AnnotateServiceImpl implements AnnotateService{
    @Override
    public String provider(){
        return "Hello Word";
    }
}

consumer(消费方)

     springApplication.java(扫描服务包) 同上

configuretion.java

package com.guanheng;

import com.alibaba.dubbo.config.ApplicationConfig;
import com.alibaba.dubbo.config.ConsumerConfig;
import com.alibaba.dubbo.config.RegistryConfig;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

@Configuration
public class ApplicationConfiguretion extends WebMvcConfigurerAdapter{
    @Bean
    public ApplicationConfig applicationConfig() {
        ApplicationConfig applicationConfig = new ApplicationConfig();
        applicationConfig.setName("consumer-test");
        return applicationConfig;
    }

    @Bean
    public ConsumerConfig consumerConfig() {
        ConsumerConfig consumerConfig = new ConsumerConfig();
        consumerConfig.setTimeout(3000);
        return consumerConfig;
    }

    @Bean
    public RegistryConfig registryConfig() {
        RegistryConfig registryConfig = new RegistryConfig();
        registryConfig.setAddress("zookeeper://127.0.0.1:2181");
        registryConfig.setClient("curator");
        return registryConfig;
    }
}

consumerServiceImpl.java(@Reference 引用服务类)

package com.guanheng.service.impl;

import com.alibaba.dubbo.config.annotation.Reference;
import com.guanheng.service.AnnotateConsumerService;
import com.guanheng.service.AnnotateService;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;

@Service
public class AnnotateConsumerServiceImpl implements AnnotateConsumerService {
    @Reference
    private AnnotateService annotateService;

    @Override
    public void showResule() {
        System.out.println(annotateService.provider());
    }
}

HelloWordController.java(url访问测试)

package com.guanheng.controller;

import com.guanheng.service.AnnotateConsumerService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloController {
    @Autowired
    private AnnotateConsumerService annotateConsumerService;

    @RequestMapping("/hello")
    public String hello(){
        annotateConsumerService.showResule();
        return "Hello Word";
    }
}

效果如下

 

项目demo地址:点击下载