step1 新建项目
方法1：直接在idea里新建如图：
方法2：在start.spring.io新建
可能有的小朋友已经发现了，第一种方式的Server URL就是第二个的网站，都是一样的
要新建两个项目，第一个项目如上图所示，第二个项目只需要将provider改为consumer
其余不变，解压后通过IDEA打开
step2 新建需要的包和接口以及实现类
provider 项目结构:
consumer 项目结构：
请注意，两个ServiceAPI在项目中的的所在位置，或者说包名要严格一致，否则后续会出问题
如果不一致，可以按照如下方式按需进行更改
xsd放到指定目录下：
C:\Users\用户名\.lemminx\cache\http\code.alibabatech.com\schema\dubbo
文件：dubbo.xsd
step3 在两个项目的resource下新建配置文件
需要新建的名字为：spring-dubbo.xml
provider的该配置文件中写入：
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
<!-- dubbo应用名称 -->
<dubbo:application name="springboot-buddo-provider"/>
<!-- 发布者 dubbo协议 -->
<dubbo:protocol name="dubbo" port="20881"/>
<!-- 定义bean -->
<bean id="providerImpl" class="com.springdubbo.demo.springbootdubbo.apiImpl.ProviderImpl"/>
<!-- dubbo服务 发布者发布服务 需要暴露的服务接口 -->
<dubbo:service interface="com.springdubbo.demo.springbootdubbo.ServiceAPI" ref="providerImpl"
registry="N/A"/>
</beans>consumer的该配置文件内写入：
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
<!-- dubbo应用名称 -->
<dubbo:application name="springboot-buddo-consumer"/>
<!-- 远程服务调用代理 -->
<dubbo:reference id="consumerImpl"
interface="com.springdubbo.demo.springbootdubbo.ServiceAPI"
url="dubbo://localhost:20881" />
</beans>step4 代码编写
导入依赖
在两个项目的pom.xml下均添加依赖：
<dependency> <groupId>com.alibaba.spring.boot</groupId> <artifactId>dubbo-spring-boot-starter</artifactId> <version>2.0.0</version> </dependency>
provider
ProviderImpl
Service注解一定不要忘记加，而且一定要是dubbo的Service
package com.springdubbo.demo.springbootdubbo.apiImpl;
import com.alibaba.dubbo.config.annotation.Service;
import com.springdubbo.demo.springbootdubbo.ServiceAPI;
/**
* @author wuyt
* @data 2022/6/11
* @apiNote
*/
@Service
public class ProviderImpl implements ServiceAPI {
public String getMessage(String message) {
return "springboot-dubbo-provider =>>>>>" + message;
}
public String getTheFeibN(int n) {
//斐波那契数列第n项的实现逻辑
}
}ServiceAPI
package com.springdubbo.demo.springbootdubbo;
/**
* @author wuyt
* @data 2022/6/11
* @apiNote
*/
public interface ServiceAPI {
public String getMessage(String message);
public String getTheFeibN(int n);
}SpringbootDubboApplication
一定要加上ImportResource注解
package com.springdubbo.demo.springbootdubbo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ImportResource;
@SpringBootApplication
@ImportResource("classpath:spring-dubbo.xml")
public class SpringbootDubboApplication {
public static void main(String[] args) {
SpringApplication.run(SpringbootDubboApplication.class, args);
}
}consumer
ServiceAPI
package com.springdubbo.demo.springbootdubbo;
/**
* @author wuyt
* @data 2022/6/11
* @apiNote
*/
public interface ServiceAPI {
public String getMessage(String message);
public String getTheFeibN(int n);
}SpringbootDubboApplication
package com.springdubbo.demo.springbootdubbo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.annotation.ImportResource;
@SpringBootApplication
@ImportResource("classpath:spring-dubbo.xml")
public class SpringbootDubboApplication {
public static void main(String[] args) {
ConfigurableApplicationContext count = SpringApplication.run(SpringbootDubboApplication.class, args);
ServiceAPI impl = (ServiceAPI)count.getBean("consumerImpl");
// System.out.println(impl.getMessage("Hello dubbo"));
System.out.println(impl.getTheFeibN(10));
}
}端口冲突更改
可以修改provider或者是consumer其中任意一个的端口号
这里修改consumer运行的端口号：
step5 运行
首先运行provider，然后运行consumer
结果：
