Spring Boot 整合 Dubbo
-
- 1.创建服务接口
-
- 1.1 创建项目
- 1.2 添加接口
- 2.创建 Provider
-
- 2.1 创建项目
- 2.2 修改 POM 文件添加依赖
- 2.3 添加接口实现
- 2.4 在配置文件中配置 Dubbo
- 2.5 启动 Provider
-
- 2.5.1 通过 spring-boot-starter-web 启动 Dubbo(POM文件中的启动器)
- 2.5.2 通过 spring-boot-starter 启动 Dubbo
- 3.创建 Consumer
-
- 3.1创建项目
- 3.2修改 POM 文件添加依赖
- 3.3编写配置文件
- 3.4实现远程调用
-
- 3.4.1创建业务层
- 3.4.2创建 Controller 层
- 3.4.3测试结果
1.创建服务接口
1.1 创建项目
- 首先通过这个选项创建一个空的框架
- 而后在里面创建model
- 第一个项目为普通的maven项目
1.2 添加接口
package com.dqcgm.dubbo.service;
public interface DemoDubboService {
String showMsg(String str);
}
2.创建 Provider
2.1 创建项目
- spring boot项目
2.2 修改 POM 文件添加依赖
- (今天不知道为什么我dubbo-registry-zookeeper中的curator-recipes4.0.1版本老是下载不了,于是我就把他剔除了,然后重新下的,大家下载没有问题的话可以忽略这步)
<?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 https://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>2.3.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.dqcgm</groupId>
<artifactId>springbootdubbo_provider</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>springbootdubbo_provider</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>com.dqcgm</groupId>
<artifactId>springbootdubbo_api</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-spring-boot-starter</artifactId>
<version>2.7.6</version>
</dependency>
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-registry-zookeeper</artifactId>
<version>2.7.4</version>
<exclusions>
<exclusion>
<groupId>org.apache.curator</groupId>
<artifactId>curator-recipes</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-recipes</artifactId>
<version>4.2.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
2.3 添加接口实现
package com.dqcgm.springbootdubbo_provider.service.impl;
import com.dqcgm.dubbo.service.DemoDubboService;
import org.apache.dubbo.config.annotation.Service;
@Service
public class DemoDubboServiceImpl implements DemoDubboService {
@Override
public String showMsg(String str) {
return "Hello Dubbo "+str;
}
}
2.4 在配置文件中配置 Dubbo
- 原本是application.properties(自动生成的),改了后缀变成了application.yml
dubbo:
application:
name: myProvider
registry:
address: zookeeper://192.168.0.110:2181?backup=192.168.0.110:2182,192.168.0.110:2183
timeout: 15000
protocol:
name: dubbo
port: 20880
scan:
base-packages: com.dqcgm.springbootdubbo_provider.service.impl
2.5 启动 Provider
2.5.1 通过 spring-boot-starter-web 启动 Dubbo(POM文件中的启动器)
- 如果在项目中添加的是 spring-boot-starter-web 启动器,那么在启动 dubbo 后还会监听一个端口,因为在 web 启动器中内置了一个 Tomcat,Tomcat 的启动不会影响 dubbo 的运行,但是会多占用一个端口,未来在其他的 Provider 中还需要考虑端口分配的问题,避免端口抢占
2.5.2 通过 spring-boot-starter 启动 Dubbo
- 可以使用 spring-boot-starter 起来启动 Dubbo,在该启动器中并未包含 Tomcat 所以并不会监听端口。
3.创建 Consumer
3.1创建项目
- spring boot项目
3.2修改 POM 文件添加依赖
<?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 https://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>2.3.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.dqcgm</groupId>
<artifactId>springbootdubbo_consumer</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>springbootdubbo_consumer</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>com.dqcgm</groupId>
<artifactId>springbootdubbo_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>
<version>2.7.6</version>
</dependency>
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-registry-zookeeper</artifactId>
<version>2.7.4</version>
<exclusions>
<exclusion>
<groupId>org.apache.curator</groupId>
<artifactId>curator-recipes</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-recipes</artifactId>
<version>4.2.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
3.3编写配置文件
- application.yml
dubbo:
application:
name: myConsumer
registry:
address: zookeeper://192.168.0.110:2181?backup=192.168.0.110:2182,192.168.0.110:2183
timeout: 10000
protocol:
name: dubbo
3.4实现远程调用
3.4.1创建业务层
package com.dqcgm.springbootdubbo_consumer.service;
public interface DemoService {
String getMsg(String str);
}
package com.dqcgm.springbootdubbo_consumer.service.impl;
import com.dqcgm.dubbo.service.DemoDubboService;
import com.dqcgm.springbootdubbo_consumer.service.DemoService;
import org.apache.dubbo.config.annotation.Reference;
import org.springframework.stereotype.Service;
@Service
public class DemoServiceImpl implements DemoService {
@Reference
private DemoDubboService demoDubboService;
@Override
public String getMsg(String str) {
return this.demoDubboService.showMsg(str);
}
}
3.4.2创建 Controller 层
package com.dqcgm.springbootdubbo_consumer.controller;
import com.dqcgm.springbootdubbo_consumer.service.DemoService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class DemoController {
@Autowired
private DemoService demoService;
@RequestMapping("/getMsg")
public String getMsg(String str) {
return this.demoService.getMsg(str);
}
}
3.4.3测试结果
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