SpringCloud微服务创建与学习之Eureka

1.父工程创建

1.1 新maven工程，点击next,工程名命名为SpringCloudLearn,GroupId命名为org.ccit

1.2 将新的工程下src文件删除

1.3 父工程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>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.4.7.RELEASE</version>
        <relativePath/>
    </parent>
    <groupId>org.ccit</groupId>
    <artifactId>SpringCloudLearn</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>
    <modules>
        <module>spring_cloud_eureka_server</module>
        <module>spring_cloud_eureka_client</module>
        <module>spring_boot_learn</module>
        <module>spring_cloud_eureka_ribbon</module>
    </modules>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <spring-cloud.version>Dalston.SR1</spring-cloud.version>
    </properties>
    <dependencyManagement>
        <dependencies>

            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <optional>true</optional>
            </dependency>
            <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>

</project>

2.Eureka

2.1Eureka_Server服务创建。

2.1.1 在SpringCloudLearn工程下，点击新建模块，创建新的Maven工程spring_cloud_eureka_server。

2.1.2点击Finish。pom.xml更改

<?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">
    <parent>
        <artifactId>SpringCloudLearn</artifactId>
        <groupId>org.ccit</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <groupId>org.ccit.SpringCloudLearn</groupId>
    <artifactId>spring_cloud_eureaka</artifactId>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-eureka-server</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

2.1.3 在java目录下，创建org.ccit.learn.SpringCloudEurekaService.class

package org.ccit.learn;

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

/**
 * @author gaochunhui
 */
@EnableEurekaServer
@SpringBootApplication
public class SpringCloudEurekaService {
    public static void main(String[] args) {
        SpringApplication.run(SpringCloudEurekaService.class,args);
    }
}

2.1.4 在resoures文件夹下创建application.yml文件。

server:
  port: 8761

eureka:
  instance:
    hostname: localhost
  client:
    registerWithEureka: false
    fetchRegistry: false
    serviceUrl:
      defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/

2.2Eureka_Client服务创建。

2.2.1 按照2.1.1下面的第一步创建新模块spring_cloud_eureka_client。并在resources文件下创建bootstrap.yml文件

server:
  port: 8763
spring:
  application:
    name: eureka-client

eureka:
  client:
    serviceUrl:
      defaultZone: http://localhost:8761/eureka/

2.2.2 创建启动文件org.ccit.learn.SpringCloudEureka.class

package org.ccit.learn;

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

/**
 * @author gaochunhui
 */
@EnableEurekaClient
@SpringBootApplication
public class SpringCloudEurekaClient {
    public static void main(String[] args) {
        SpringApplication.run(SpringCloudEurekaClient.class,args);
    }
}

2.2.3 创建org.ccit.learn.controller.HiController.class

package org.ccit.learn.controller;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HiController {

    @Value("${server.port}")
    String port;
    @GetMapping("/hi")
    public String home(@RequestParam String name) {
        return "hi "+name+",i am from port:" +port;
    }

}

3.使用idea复制Eureka_Client微服务并启动运行

3.1 重新设置Eureka_client为服务启动端口为8762

3.2 点击复制健为新的服务设置启动端口为8763

4.运行截图