SpringCloud 学习笔记-05--EnableEurekaClient客户端-service-order-feign服务内部应用名称调用

继续前面系列：

访问测试地址：

http://localhost:8888/testString
http://localhost:8888/
http://localhost:8765/getOrderByUserList
http://localhost:8769/actuator/info
http://127.0.0.1:8769/api-member/getUserList?token=1224
http://localhost:8764/getOrderByUserList
http://localhost:8762/getUserList

本应用：application.yml

eureka:
  client:
    serviceUrl:
      defaultZone: http://localhost:8888/eureka/
server:
  port: 8765
spring:
  application:
    name: service-order-feign

2、ServiceOrderFeignApplication主类的源码：

最主要的要运行：

@EnableEurekaClient
@EnableFeignClients

package com.ml0115;

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 ServiceOrderFeignApplication {

  public static void main(String[] args) {
    SpringApplication.run(ServiceOrderFeignApplication.class, args);
  }

}

做接口调用MemberFeign 注入服务然后就可以使用服务名称进行服务调用

3、MemberFeign

package com.ml0115.service;

import java.util.List;

import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.RequestMapping;

@FeignClient("service-member")
public interface MemberFeign {
  @RequestMapping("/getUserList")
  public List<String> getOrderByUserList();
}

4.MemberFeignService implements MemberFeign  注入服务，进行调用

package com.ml0115.service;

import java.util.ArrayList;
import java.util.List;

public class MemberFeignService implements MemberFeign {

  @Override
  public List<String> getOrderByUserList() {
    List<String> listUser = new ArrayList<String>();
    listUser.add("not orderUser list");
    return listUser;

  }

}

5.进行本服务的请求访问，然后返回注册中心其他客户端的进行服务调用 MemberFeignController

package com.ml0115.service;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public   class   MemberFeignController{
  
  @Autowired
  MemberFeign  memberFeign;
  
  
  @RequestMapping("/getOrderByUserList")
  public List<String> getOrderByUserList() {
    return memberFeign.getOrderByUserList();
  } 
  
}

6.主要是POM的文件依赖。最开始的时候这个容易出现错误，主要是版本依赖不一致不兼容导致，所以前面新建SpringCloud工程时候，可以选择这些模块省去配置的麻烦

<?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>2.2.2.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
  </parent>
  <groupId>com.test</groupId>
  <artifactId>service-order-feign</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
  <name>service-order-feign</name>
  <description>目前状态不要</description>

  <properties>
    <java.version>1.8</java.version>
    <spring-cloud.version>Hoxton.SR1</spring-cloud.version>
  </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</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>

    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-tomcat</artifactId>
      <scope>provided</scope>
    </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>

  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-dependencies</artifactId>
        <version>${spring-cloud.version}</version>
        <type>pom</type>
        <scope>import</scope>
      </dependency>
    </dependencies>
  </dependencyManagement>

  <build>
    <plugins>
      <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
      </plugin>
    </plugins>
  </build>

</project>

按照前的访问地址就可以访问