idea之springCloud微服务创建

一、创建注册中心

（1）创建名为Eureka的Maven工程

file→New→Project→Maven→Next→Next→Finish

（2）导入pom

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.springCloud.cn</groupId>
  <artifactId>Eureka</artifactId>
  <packaging>war</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>Eureka Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <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>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-config</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-eureka</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-netflix-eureka-server</artifactId>
    </dependency>
  </dependencies>
  <build>
    <finalName>Eureka</finalName>
  </build>
</project>

（3）配置application.yml

在src/main/resources文件夹下，新建文件application.yml

配置如下：

server:
  port: 8081
eureka:
  instance:
    hostname: localhost
  client:
    registerWithEureka: false
    fetchRegistry: false
    serviceUrl:
      defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/

（4）创建application类

在src/main下创建cloud/service文件夹并创建EurekaApplication.java文件

内容为：

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

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

（5）具体结构如下

二、创建服务A

（1）创建名为service1的服务端A

过程略。。。

（2）导入pom

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.springCloud.cn</groupId>
  <artifactId>service1</artifactId>
  <packaging>war</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>service1 Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <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>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-config</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-eureka</artifactId>
    </dependency>
  </dependencies>
  <build>
    <finalName>service1</finalName>
  </build>
</project>

（3）配置application.yml文件

在src/main/resources文件夹下，新建文件application.yml

配置如下：

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

（4）创建application类

在src/main下创建cloud/service文件夹并创建ServiceAApplication.java文件

内容为：

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

@SpringBootApplication
@EnableDiscoveryClient
@RestController
public class ServiceAApplication {
    @RequestMapping("/service1")
    public String service2(){
        return "这是服务A";
    }
    public static void main(String[] args) {
        SpringApplication.run(ServiceAApplication.class, args);
    }
}

（5）结构如下：

三、创建服务B

（1）创建名为service2的服务端B

过程略。。。

（2）导入pom

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.springCloud.cn</groupId>
  <artifactId>service2</artifactId>
  <packaging>war</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>service2 Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <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>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-config</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-eureka</artifactId>
    </dependency>
  </dependencies>
  <build>
    <finalName>service2</finalName>
  </build>
</project>

（3）配置application.yml文件

在src/main/resources文件夹下，新建文件application.yml

配置如下：

spring:
  application:
    name: service2
eureka:
  client:
    serviceUrl:
      defaultZone: http://localhost:8081/eureka/
server:
  port: 8083

（4）创建application类

在src/main下创建cloud/service文件夹并创建ServiceBApplication.java文件

内容为：

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

@SpringBootApplication
@EnableDiscoveryClient
@RestController
public class ServiceBApplication {
    @RequestMapping("/service2")
    public String service2(){
        return "这是服务B";
    }

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

（5）结构如下：

四、配置网关

（1）创建名为gateway的服务端B

过程略。。。

（2）导入pom

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.springCloud.cn</groupId>
  <artifactId>gateway</artifactId>
  <packaging>war</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>gateway Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <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</groupId>
      <artifactId>spring-cloud-starter-eureka</artifactId>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-zuul -->
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-zuul</artifactId>
      <version>1.4.2.RELEASE</version>
    </dependency>
  </dependencies>
  <build>
    <finalName>gateway</finalName>
  </build>
</project>

（3）配置application.yml文件

在src/main/resources文件夹下，新建文件application.yml

配置如下：

eureka:
  client:
    serviceUrl:
      defaultZone: http://localhost:8081/eureka/
spring:
  application:
    name: gateway
server:
  port: 8084
zuul:
  routes:
    service: /service/**
    service2: /service2/**

（4）创建application类

在src/main下创建cloud/service文件夹并创建GatewayApplication.java文件

内容为：

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);
    }
}

（5）结构如下：

五、测试

浏览器依次输入：

http://localhost:8081

http://localhost:8082/service1

http://localhost:8083/service2

http://localhost:8084/service/service1

http://localhost:8084/service2/service2