IDEA 中构建注册和服务发现中心（一）

IDEA 中构建Spring Cloud注册和服务发现中心（一）

本文主要是利用IDEA构建Spring Cloud注册和服务发现中心：

IDEA 中构建Spring Cloud注册和服务发现中心一
本文中涉及的Spring Cloud架构节点图

创建主工程cloud

创建服务注册发现组件

创建路由网关组件

创建一个服务提供者

启动顺序

输入测试地址

本文中涉及的Spring Cloud架构节点图

服务注册中心详解

创建主工程cloud

1，IDEA 中new 一个普通的Maven 工程，包名com.spring，模块命名为cloud

2，在项目的pom.xml中添加如下依赖

<?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>

<groupId>com.spring</groupId>
<artifactId>cloud</artifactId>
<packaging>pom</packaging>
<version>1.0-SNAPSHOT</version>
<modules>
<module>discovery</module>
<module>gateway</module>
<module>service</module>
</modules>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.5.RELEASE</version>
</parent>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Camden.SR6</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</group
4000
Id>
<artifactId>spring-cloud-starter-eureka</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-netflix-eureka-server</artifactId>
<version>1.1.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-ribbon</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-zuul</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>

</project>

创建服务注册发现组件

1，在cloud项目上右击，新建new一个Module，普通的Maven，ArtifactId 为：discovery，点击next ,Content root : discovery

2，在src.main.java下创建一个文件夹discovery，并创建一个服务启动类DiscoveryApplicaion.java

package discovery;

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

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

3， 在resource文件夹下创建配置文件：application.yml

server:
port: 8081
eureka:
instance:
hostname: localhost
client:
registerWithEureka: false
fetchRegistry: false
serviceUrl:
defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/[/code] 
创建路由网关组件
1，在cloud项目上右击，新建new一个Module，普通的Maven，ArtifactId  为：geteway，点击next ,Content root : geteway

2，在src.main.java下创建一个文件夹geteway，并创建一个服务启动类GatewayApplication.java

package geteway;

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

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


3，在resource文件夹下创建配置文件：application.yml

eureka:
client:
serviceUrl:
defaultZone: http://localhost:8081/eureka/ spring:
application:
name: gateway
server:
port: 8084
zuul:
routes:
service1: /service1/**


创建一个服务提供者
1，在cloud项目上右击，新建new一个Module，普通的Maven，ArtifactId  为：service1，点击next ,Content root : service1

2，在src.main.java下创建一个文件夹service1，并创建一个服务启动Service1Application.java

package service1;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@SpringBootApplication
@EnableDiscoveryClient
@RestController
@RequestMapping("service1")
public class Service1Application {
@GetMapping("/test")
public String service(){
System.out.println("asdfafdas");
return "service1";
}
@GetMapping("/hi")
public String hi(@RequestParam(value = "id") String id){
System.out.println("asdfafdas");
return "id  === " + id;
}

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


3，在resource文件夹下创建配置文件：application.yml

spring:
application:
name: service1
eureka:
client:
serviceUrl:
defaultZone: http://localhost:8081/eureka/ server:
port: 8082


启动顺序
1，首先启动 discovery服务，后面依次启动gateway,service1服务

2，启动方式，进入配置主类，运行main方法即可。

输入测试地址
http://localhost:8081

http://localhost:8082/service1/test

http://localhost:8084/service1/service1/test