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Eclipse(STS) 初次搭建Spring Cloud项目之声明式REST调用+负载均衡实现Feign(四)
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Eclipse(STS) 初次搭建Spring Cloud项目之声明式REST调用+负载均衡实现Feign(四)
小編覺得挺不錯的,現在分享給大家,幫大家做個參考.
一、什么是Feign
二、下面來看看具體實現
首先創建Feign模塊,cloud-demo-feign
下面是項目結構
pom文件如下
<?xml version="1.0"?> <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><modelVersion>4.0.0</modelVersion><parent><groupId>com.hewl</groupId><artifactId>cloud-demo-parent</artifactId><version>0.0.1-SNAPSHOT</version></parent><artifactId>cloud-demo-feign</artifactId><name>cloud-demo-feign</name><url>http://maven.apache.org</url><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-netflix-eureka-client</artifactId></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-openfeign</artifactId></dependency></dependencies> </project> 復制代碼application.yml文件如下
server:port: 8811 # 你的端口 spring:application:name: feign eureka:client:service-url:defaultZone: http://admin:admin@server1:8761/eureka/,http://admin:admin@server2:8762/eureka/ 復制代碼啟動類內容如下,加上@EnableFeignClients注解開啟Feign的功能
package com.hewl;import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.netflix.eureka.EnableEurekaClient; import org.springframework.cloud.openfeign.EnableFeignClients;@SpringBootApplication @EnableEurekaClient @EnableFeignClients public class FeignApplication {public static void main(String[] args) {SpringApplication.run(FeignApplication.class, args);} } 復制代碼定義Feign接口,SchedualCilentName
package com.hewl.feign;import org.springframework.cloud.openfeign.FeignClient; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestParam;@FeignClient(value="service-eureka-client") public interface SchedualCilentName {@GetMapping(value = "/test")public String testFromClientOne(@RequestParam("name") String name);} 復制代碼定義對外的controller
package com.hewl.controller;import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RestController;import com.hewl.feign.SchedualCilentName;@RestController public class TestController {@Autowiredpublic SchedualCilentName schedualCilentName;@GetMapping(value="/test")public String test (String name) {return schedualCilentName.testFromClientOne(name);} }復制代碼按順序啟動項目
訪問localhost:8811/test?name=張三,訪問成功并且已經成功啟動負載均衡
轉載于:https://juejin.im/post/5d01e679f265da1b5f265021
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