Spring-Cloud之hello world-白红宇

一、springboot集成springcloud

创建maven项目作为父工程cloud-parent，并在父工程下创建两个springboot项目的module：cloud-eureka(注册中心)、cloud-eureka2(注册中心2)、cloud-server(服务端),cloud-client(客户端)项目结构如下：

二、配置cloud-eureka

1、pom文件(创建工程勾选Cloud Discovery-->Eureka Server)


    
       
     
      4.0.0
        
           
      
       org.springframework.boot
            
      
       spring-boot-starter-parent
            
      
       1.5.18.RELEASE
            
       
         
        
     
      com.wxx.demo
        
     
      cloud-server
        
     
      0.0.1-SNAPSHOT
        
     
      jar
        
     
      cloud-server
        
     
      Demo project for Spring Boot
        
           
      
       1.8
            
      
       Edgware.SR5
         
        
           
               
       
        org.springframework.cloud
                
       
        spring-cloud-starter-netflix-eureka-server
             
            
               
       
        org.springframework.boot
                
       
        spring-boot-starter-test
                
       
        test
             
         
        
           
               
                   
        
         org.springframework.cloud
                    
        
         spring-cloud-dependencies
                    
        
         ${spring-cloud.version}
                    
        
         pom
                    
        
         import
                 
             
         
        
           
               
                   
        
         org.springframework.boot
                    
        
         spring-boot-maven-plugin
                 
             
         
     
    复制代码

2、application.properties配置文件

server.port=8096eureka.client.registerWithEureka=falseeureka.client.fetchRegistry=falseeureka.client.serviceUrl.defaultZone=http://localhost:8098/eureka/ #配置eureka2的注册中心地址做集群处理复制代码

3、启动类配置

package com.wxx.demo;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;@SpringBootApplication@EnableEurekaServer//作为Eureka注册中心public class CloudServerApplication {   public static void main(String[] args) {      SpringApplication.run(CloudServerApplication.class, args);   }}复制代码

4、启动服务端并访问：http://localhost:8096/

5、配置cloud-eureka2同上把注册地址修改为cloud-eureka地址

三、配置cloud-client

1、pom文件同上配置


    
       
     
      4.0.0
        
           
      
       org.springframework.boot
            
      
       spring-boot-starter-parent
            
      
       2.1.1.RELEASE
            
       
         
        
     
      com.wxx.demo
        
     
      cloud-client
        
     
      0.0.1-SNAPSHOT
        
     
      cloud-client
        
     
      Demo project for Spring Boot
        
           
      
       1.8
            
      
       Greenwich.RC2
         
        
           
               
       
        org.springframework.boot
                
       
        spring-boot-starter-web
             
            
               
       
        org.springframework.cloud
                
       
        spring-cloud-starter-netflix-eureka-server
             
            
                  
       
        com.wxx.demo
                   
       
        cloud-server
                   
       
        0.0.1-SNAPSHOT
             
            
               
       
        org.springframework.boot
                
       
        spring-boot-starter-test
                
       
        test
             
         
        
           
               
                   
        
         org.springframework.cloud
                    
        
         spring-cloud-dependencies
                    
        
         ${spring-cloud.version}
                    
        
         pom
                    
        
         import
                 
             
         
        
           
               
                   
        
         org.springframework.boot
                    
        
         spring-boot-maven-plugin
                 
             
         
        
           
               
       
        spring-milestones
                
       
        Spring Milestones
                
       
        https://repo.spring.io/milestone
             
         
     
    复制代码

2、application.properties配置文件

server.port=8090spring.application.name=cloud-clienteureka.client.serviceUrl.defaultZone=http://localhost:8096/eureka/  #eureka.client.serviceUrl.defaultZone=http://localhost:8096/eureka/,http://localhost:8096/eureka/ 服务注册地址两种写法都可以复制代码

3、启动类配置

package com.wxx.demo;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.cloud.netflix.eureka.EnableEurekaClient;@SpringBootApplication@EnableEurekaClient//Eureka客户端注解public class CloudClientApplication {   public static void main(String[] args) {      SpringApplication.run(CloudClientApplication.class, args);   }}复制代码

4、客户端代码

package com.wxx.demo.client;import com.wxx.demo.service.DemoService;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.web.bind.annotation.GetMapping;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.bind.annotation.RestController;@RestControllerpublic class DemoClient {    @Autowired    private DemoService demoService;    @GetMapping("/hello")    public String sayHello(@RequestParam String hello){        return demoService.sayHello(hello);    }}复制代码

5、启动客户端项目访问：http://localhost:8090/hello?hello=%22spring-cloud%22

查看服务注册情况