SpringBoot怎麼搭建Dubbo專案實現斐波那契第n項

step1 新專案

方法1：直接在IDEA新建如圖：

##方法2：在start.spring.io新建

可能有的小朋友已經發現了，第一種方式的Server URL就是第二個的網站，都是一樣的

要新建兩個項目，第一個項目如上圖所示，第二個項目只需要將provider改為consumer

#其餘不變，解壓縮後透過IDEA開啟

step2 新建所需的套件和介面以及實作類別

provider 專案結構:

##consumer 專案結構：

##請注意，兩個ServiceAPI在專案中的所在位置，或者說套件名稱要嚴格一致，否則後續會出問題

如果不一致，可以按照如下方式按需進行更改

xsd放到指定目錄下：

C:\Users\使用者名稱\.lemminx\cache\http\code. alibabatech.com\schema\dubbo

檔：dubbo.xsd

step3 在兩個專案的resource下新設定檔

#需要新建的名字為：spring-dubbo.xml

provider的該設定檔中寫入：

<?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的該設定檔內寫入：

<?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 程式碼編寫

導入依賴

在兩個專案的pom.xml下均加入依賴：

<dependency>
	<groupId>com.alibaba.spring.boot</groupId>
	<artifactId>dubbo-spring-boot-starter</artifactId>
	<version>2.0.0</version>
</dependency>

provider

#ProviderImpl

Service註解一定不要忘記加，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

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));
	}
}

###連接埠衝突更改######可以修改provider或是consumer其中任何一個的連接埠號碼######這裡修改consumer運行的連接埠號碼：######### #######step5 執行######先執行provider，然後執行consumer######結果：############

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