SpringBoot怎么搭建Dubbo项目实现斐波那契第n项

亿速云 • 2022年9月24日上午12:16 • 其他 • 阅读 595

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，名列前茅种方式的Server URL就是第二个的网站，都是一样的

要新建两个项目，名列前茅个项目如上图所示，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.lemminxcachehttpcode.alibabatech.comschemadubbo

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/beanshttp://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/beanshttp://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 */@Servicepublic 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));	}}