springboot整合dubbo(3)-配置服务提供者

1.导入依赖

父工程

<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>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.4.RELEASE</version>
        <relativePath/>
    </parent>

    <groupId>com.xt</groupId>
    <artifactId>springboot-dubbo-demo</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>pom</packaging>

    <name>springboot-dubbo-demo</name>
    <url>http://maven.apache.org</url>
    <modules>
        <module>springboot-dubbo-provider</module>
        <module>springboo-dubbo-consumer</module>
    </modules>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <java.version>1.8</java.version>
        <dubbo.version>2.7.3</dubbo.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <!--dubbo依赖-->
            <dependency>
                <groupId>org.apache.dubbo</groupId>
                <artifactId>dubbo-spring-boot-starter</artifactId>
                <version>${dubbo.version}</version>
            </dependency>

            <!--zookeeper注册中心客户端引入 curator客户端-->
            <dependency>
                <groupId>org.apache.dubbo</groupId>
                <artifactId>dubbo-dependencies-zookeeper</artifactId>
                <version>${dubbo.version}</version>
                <type>pom</type>
            </dependency>
        </dependencies>
    </dependencyManagement>
</project>

 

提供者

<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>
    <parent>
        <groupId>com.xt</groupId>
        <artifactId>springboot-dubbo-demo</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <artifactId>springboot-dubbo-provider</artifactId>
    <packaging>jar</packaging>

    <name>springboot-dubbo-provider</name>
    <url>http://maven.apache.org</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>com.xt</groupId>
            <artifactId>springboot-dubbo-api</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>

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

        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-dependencies-zookeeper</artifactId>
        </dependency>
    </dependencies>
</project>

 

　

2.application.properties配置

#tomcat端口号
server.port=8080
spring.datasource.url=jdbc:mysql://localhost:3306/study2020
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.username=root
spring.datasource.password=root
mybatis.configuration.map-underscore-to-camel-case=true
spring.resources.static-locations:classpath:/static/,classpath:/templates/
#mybatis 配置
# 配置映射文件加载
mybatis.mapper-locations=classpath*:mappers/*.xml
# 实体类通过别名使用
#mybatis.type-aliases-package=com.example.springboot.mybatis.entity
spring.devtools.restart.enabled=true
#dubbo相关配置
#服务名称
dubbo.application.name=springboot-user-service
#注册中心地址
dubbo.registry.address=zookeeper://127.0.0.1:2181
#协议名称
dubbo.protocol.name=dubbo
dubbo.protocol.port=20880

 

application.yml配置

server:
  port: 8001
##配置dubbo环境
dubbo:
  ##应用名称
  application:
    name: dubbo-provider
  ##配置注册中心
  registry:
    address: zookeeper://127.0.0.1:2181
  ##注册中心采用的协议 端口号
  protocol:
    name: dubbo
    port: 20880
  ##指定包扫描路径：服务实现类所在的包路径，结合@service注解
  scan:
    base-packages: com.xt.provider.service

 

3.实现类上添加@com.alibaba.dubbo.config.annotation.Service注解(暴露服务)，相当于下面的配置：

<!-- 声明需要暴露的服务接口 -->
<dubbo:service interface="com.atxuetao.service.UserService" ref="userServiceImpl" />

<!-- 和本地bean一样实现服务 -->
<bean id="userServiceImpl" class="com.atxuetao.service.impl.UserServiceImpl" />

　　

package com.xt.service.impl;

import com.xt.mapper.UserMapper;
import com.xt.pojo.User;
import com.xt.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

/**
 * @Author: TestRookie * @Date: 2021/6/27 19:47 * @Description: *
 */
@Service
@com.alibaba.dubbo.config.annotation.Service//暴露服务
public class UserServiceImpl implements UserService {

    @Autowired
    private UserMapper userMapper;

    @Override
    public User selectByPrimaryKey(Integer id) {
        return userMapper.selectByPrimaryKey(id);
    }
}

　　

4.在启动类上添加@EnableDubbo注解，@service注解才能扫描到

package com.xt;

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

@MapperScan("com.xt.mapper")
@SpringBootApplication
@EnableDubbo//启动基于dubbo注解功能
public class SpringbootUserServiceApplication {

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

}

　　

注：启动前，zookeeper必须启动服务