SpringCloud入门(三)-服务提供者

创建文件夹hello-spring-cloud-service-admin

创建pom.xml

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
 
    <parent>
        <groupId>com.funtl</groupId>
        <artifactId>hello-spring-cloud-dependencies</artifactId>
        <version>1.0.0-SNAPSHOT</version>
        <relativePath>../hello-spring-cloud-dependencies/pom.xml</relativePath>
    </parent>
 
    <artifactId>hello-spring-cloud-service-admin</artifactId>
    <packaging>jar</packaging>
 
    <name>hello-spring-cloud-service-admin</name>
    <url>http://www.funtl.com</url>
    <inceptionYear>2018-Now</inceptionYear>
 
    <dependencies>
        <!-- Spring Boot Begin -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- Spring Boot End -->
 
        <!-- Spring Cloud Begin -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
        </dependency>
        <!-- Spring Cloud End -->
    </dependencies>
 
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <mainClass>com.funtl.hello.spring.cloud.service.admin.ServiceAdminApplication</mainClass>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

创建基础项目目录src/main/java     src/main/resources

创建文件目录com.funtl.hello.spring.cloud.service.admin

创建启动类ServiceAdminApplication

package com.funtl.hello.spring.cloud.service.admin;


import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;


@SpringBootApplication
@EnableEurekaClient
public class ServiceAdminApplication {
    public static void main(String[] args) {
        SpringApplication.run(ServiceAdminApplication.class,args);
    }
}

创建application.yml

spring:
  application:
    name: hello-spring-cloud-service-admin
 
server:
  port: 8762
 
eureka:
  client:
    serviceUrl:
      defaultZone: http://localhost:8761/eureka/   #服务端注册服务地址,要把服务注册到哪

提供测试接口

package com.funtl.hello.spring.cloud.service.admin.controller;


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


@RestController
public class AdminController {


    @Value("${server.port}")
    private String port;


    @RequestMapping(value = "hi",method = RequestMethod.GET)
    public String sayHi(String message){
        return String.format("Hi your message is : %s port : %s",message,port);
    }
}

注意：通过Run--Edit Configurations--ServiceAdminApplication,把右上角的Single instance only的对勾去掉就可以直接修改application.yml中的server.port然后再起一个同样的服务,其他服务也可以这样做。

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