分布式技术之dubbo二

<!--引入springboot 和dependencies并列-->
  <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.5.7</version>
    <relativePath/> <!-- lookup parent from repository -->
  </parent>
<!--springboot web包-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!--简化实例类包-->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<!-- Spring Boot Dubbo 依赖 -->
<dependency>
<groupId>com.alibaba.spring.boot</groupId>
<artifactId>dubbo-spring-boot-starter</artifactId>
<version>2.0.0</version>
</dependency>
<!-- zookeeper依赖 -->
<dependency>
<groupId>com.101tec</groupId>
<artifactId>zkclient</artifactId>
<version>0.10</version>
</dependency>    

pom.xml
           <dependency>
            <groupId>com.aaa</groupId>
            <artifactId>common</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>

package com.aaa.pc;
import com.alibaba.dubbo.spring.boot.annotation.EnableDubboConfiguration;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.SpringBootConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
/**
 * @ fileName:PowerConsumerApplication
 * @ description:
 * @ author:zhz
 * @ createTime:2022/1/5 9:51
 * @ version:1.0.0
 */
@SpringBootApplication
@EnableDubboConfiguration  //开启dubbo配置
public class PowerConsumerApplication {
    public static void main(String[] args) {
        //run方法
        SpringApplication.run(PowerConsumerApplication.class,args);
    }
}

package com.aaa.pc.controller;
import com.aaa.common.controller.BaseController;
import com.aaa.common.entity.Menu;
import com.aaa.common.service.MenuService;
import com.aaa.common.util.Result;
import com.alibaba.dubbo.config.annotation.Reference;
import org.springframework.web.bind.annotation.*;
import javax.annotation.Resource;
import java.util.Map;
/**
 * 菜单权限表(Menu)表控制层
 *
 * @author makejava
 * @since 2022-01-05 09:45:33
 */
@RestController
@RequestMapping("menu")
public class MenuController extends BaseController {
    /**
     * 服务对象
     */
    @Reference(check = false)   //没有配置文件，直接使用引用注解
    private MenuService menuService;
    /**
     * 通过主键查询单条数据
     *
     * @param id 主键
     * @return 单条数据
     */
    @GetMapping("selectOne")
    public Result selectOne(Integer id) {
        return this.success(this.menuService.queryById(id));
    }
    /**
     * 添加
     *
     * @param menu
     * @return
     */
    @PutMapping("add")
    public Result add(@RequestBody Menu menu) {
        return this.success(this.menuService.insert(menu));
    }
    /**
     * 更新
     *
     * @param menu
     * @return
     */
    @PutMapping("update")
    public Result update(@RequestBody Menu menu) {
        return this.success(this.menuService.update(menu));
    }
    /**
     * 根据编号删除
     *
     * @param id
     * @return
     */
    @DeleteMapping("deleteById")
    public Result deleteById(Integer id) {
        return this.success(this.menuService.deleteById(id));
    }
}
application.properties:
#访问端口号
server.port=18090
#dubbo - customer名称
spring.dubbo.application.name=power_customer

pom.xml
       <dependency>
    <groupId>com.aaa</groupId>
    <artifactId>common</artifactId>
    <version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>2.2.0</version>
</dependency>
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>5.1.10</version>
</dependency>
<!--druid包-->
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid</artifactId>
    <version>1.2.8</version>
</dependency>
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid-spring-boot-starter</artifactId>
    <version>1.2.8</version>
</dependency>

package com.aaa.pp;
import com.alibaba.dubbo.spring.boot.annotation.EnableDubboConfiguration;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.transaction.annotation.EnableTransactionManagement;
/**
 * @ fileName:PowerProviderApplication
 * @ description:
 * @ author:zhz
 * @ createTime:2022/1/5 10:32
 * @ version:1.0.0
 */
@SpringBootApplication
@EnableDubboConfiguration
//@EnableTransactionManagement
public class PowerProviderApplication {
    public static void main(String[] args) {
        SpringApplication.run(PowerProviderApplication.class,args);
    }
}
编写服务实现类加入  @server 
            @com.alibaba.dubbo.config.annotation.Service
            @Service  为dubbo 注解，注解暴露服务
application.properties:
spring.datasource.druid.url=jdbc:mysql://localhost:3306/db_qy141
spring.datasource.druid.username=root
spring.datasource.druid.password=root
spring.datasource.druid.initial-size=5
spring.datasource.druid.max-active=20
spring.datasource.druid.min-idle=10
spring.datasource.druid.max-wait=10
#端口号
server.port=19090
#dubbo 服务名称
spring.dubbo.application.name=power_provider

export PATH=$PATH:$JAVA_HOME/bin:$ZK_HOME/bin:/usr/apache-tomcat-9.0.52/bin