dubbo-springboot

一、服务提供者boot-user-service-provider

服务提供者boot-user-service-provider代码结构如下：

1、服务提供者boot-user-service-provider引入spring-boot-starter以及dubbo和curator的依赖

注意starter版本适配：

<dependency>
　　<groupId>org.springframework.boot</groupId>
　　<artifactId>spring-boot-starter</artifactId>
</dependency>

<dependency>
　　<groupId>com.alibaba.boot</groupId>
　　<artifactId>dubbo-spring-boot-starter</artifactId>
　　<version>0.2.0</version>
</dependency>

引入spring-boot-starter以及dubbo和curator的依赖后的pom.xml文件内容如下：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.lina02.gmall</groupId>
    <artifactId>boot-user-service-provider</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>boot-user-service-provider</name>
    <description>服务提供者</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.6.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>com.lina02.gmall</groupId>
            <artifactId>gmall-interface</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>com.alibaba.boot</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>0.2.0</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

2、配置文件application.properties

#服务名，不能跟别的dubbo服务提供者重复
dubbo.application.name=boot-user-service-provider
#指定注册中心的地址和端口号
dubbo.registry.address=127.0.0.1:2181
#指定注册中心协议
dubbo.registry.protocol=zookeeper

#指定通信规则（通信协议&通信端口）
dubbo.protocol.name=dubbo
dubbo.protocol.port=20880

#连接监控中心
dubbo.monitor.protocol=registry

3、UserService接口实现UserServiceImpl

package com.lina02.gmall.service.impl;

import com.lina02.gmall.bean.UserAddress;
import com.lina02.gmall.service.UserService;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;

import java.util.Arrays;
import java.util.List;

@com.alibaba.dubbo.config.annotation.Service //暴露服务
//@Service
@Component
public class UserServiceImpl implements UserService {

    @Override
    public List<UserAddress> getUserAddressList(String userId) {
        System.out.println("UserServiceImpl..3.....");
        UserAddress address1 = new UserAddress(1, "北京市昌平区宏福科技园综合楼3层", "1", "李老师", "010-56253825", "Y");
        UserAddress address2 = new UserAddress(2, "深圳市宝安区西部硅谷大厦B座3层（深圳分校）", "1", "王老师", "010-56253825", "N");

        return Arrays.asList(address1,address2);
    }
}

4、主程序

package com.lina02.gmall;

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

@EnableDubbo //开启dubbo注解
@SpringBootApplication
public class BootUserServiceProviderApplication {

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

二、服务消费者boot-order-service-consumer

服务消费者boot-order-service-consumer代码结构如下：

1、pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.lina02.gmall</groupId>
    <artifactId>boot-order-service-consumer</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>boot-order-service-consumer</name>
    <description>服务消费者</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.6.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>com.lina02.gmall</groupId>
            <artifactId>gmall-interface</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>

        <dependency>
            <groupId>com.alibaba.boot</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>0.2.0</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

2、配置文件application.propertise

#配置服务端口
server.port=8081

#服务名，不能跟别的dubbo服务提供者重复
dubbo.application.name=boot-order-service-consumer
#指定注册中心协议、地址、端口号
dubbo.registry.address=zookeeper://127.0.0.1:2181

#连接监控中心
dubbo.monitor.protocol=registry

3、OrderService接口实现OrderServiceImpl

package com.lina02.gmall.service.impl;

import com.alibaba.dubbo.config.annotation.Reference;
import com.lina02.gmall.bean.UserAddress;
import com.lina02.gmall.service.OrderService;
import com.lina02.gmall.service.UserService;
import org.springframework.stereotype.Service;

import java.util.List;

/**
 * 1、将服务提供者注册到注册中心（暴露服务）
 * 		1）、导入dubbo依赖（2.6.2）\操作zookeeper的客户端(curator)
 * 		2）、配置服务提供者
 *
 * 2、让服务消费者去注册中心订阅服务提供者的服务地址
 */
@Service
public class OrderServiceImpl implements OrderService {

    //@Autowired
    @Reference //订阅的服务
    UserService userService;

    @Override
    public List<UserAddress> initOrder(String userId) {
        System.out.println("用户id："+userId);
        //1、查询用户的收货地址
        List<UserAddress> addressList = userService.getUserAddressList(userId);
        return addressList;
    }
}

4、OrderController

package com.lina02.gmall.controller;

import com.lina02.gmall.bean.UserAddress;
import com.lina02.gmall.service.OrderService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

import java.util.List;

@Controller
public class OrderController {

    @Autowired
    OrderService orderService;

    @ResponseBody
    @RequestMapping("/initOrder")
    public List<UserAddress> initOrder(@RequestParam("uid") String userId){
        return orderService.initOrder(userId);
    }
}

5、主程序

package com.lina02.gmall;

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

@EnableDubbo //开启dubbo注解
@SpringBootApplication
public class BootOrderServiceConsumerApplication {

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