springcloud(Brixton版) EurekaServer 消费端

ゝ一世哀愁。 2023-08-17 16:25 124阅读 0赞

1.创建springboot项目。

2.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>
    
       <groupId>com.didispace</groupId>
       <artifactId>compute-service</artifactId>
       <version>1.0.0</version>
       <packaging>jar</packaging>
    
       <name>compute-service</name>
       <description>Spring Cloud project</description>
    
       <parent>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-parent</artifactId>
          <version>1.3.5.RELEASE</version>
          <relativePath/> 
       </parent>
    
       <properties>
          <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
          <java.version>1.8</java.version>
       </properties>
    
       <dependencies>
          <dependency>
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-starter-eureka</artifactId>
          </dependency>
    
          <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
          </dependency>
    
       </dependencies>
    
       <dependencyManagement>
          <dependencies>
             <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Brixton.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
             </dependency>
          </dependencies>
       </dependencyManagement>
    
       <build>
          <plugins>
             <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
             </plugin>
          </plugins>
       </build>
    
    </project>

3.application.properties

spring.application.name=compute-service
    
    server.port=2222
    
    eureka.client.serviceUrl.defaultZone=http://localhost:1111/eureka/

4.controller（这里简单的进行计算两数之和的逻辑处理）

import org.apache.log4j.Logger;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.cloud.client.ServiceInstance;
    import org.springframework.cloud.client.discovery.DiscoveryClient;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;
    import org.springframework.web.bind.annotation.RequestParam;
    import org.springframework.web.bind.annotation.RestController;
    
    @RestController
    public class ComputeController {
    
        private final Logger logger = Logger.getLogger(getClass());
    
        @Autowired
        private DiscoveryClient client;
    
        @RequestMapping(value = "/add" ,method = RequestMethod.GET)
        public Integer add(@RequestParam Integer a, @RequestParam Integer b) {
            ServiceInstance instance = client.getLocalServiceInstance();
            Integer r = a + b;
            logger.info("/add, host:" + instance.getHost() + ", service_id:" + instance.getServiceId() + ", result:" + r);
            return r;
        }
    
    }

5.启动类：

import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.boot.builder.SpringApplicationBuilder;
    import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
    
    @EnableDiscoveryClient
    @SpringBootApplication
    public class ComputeServiceApplication {
    
       public static void main(String[] args) {
          new SpringApplicationBuilder(ComputeServiceApplication.class).web(true).run(args);
       }
    
    }

6.启动项目，访问[http://localhost:1111/][http_localhost_1111]  则可以看见被注册到了eureka服务端。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzMzcxNzY2_size_16_color_FFFFFF_t_70][]

接着访问：[http://192.168.8.1:2222/add?a=1&b=2][http_192.168.8.1_2222_add_a_1_b_2]

![20190928164508995.png][]

2019-09-28 16:37:02.654  INFO 9620 --- \[nio-2222-exec-5\] com.didispace.web.ComputeController      : /add, host:192.168.8.1, service\_id:compute-service, result:3

这样就完成了服务端和消费端的简单实现。

[http_localhost_1111]: http://localhost:1111/
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzMzcxNzY2_size_16_color_FFFFFF_t_70]: /images/20230810/88141792d11a42199df5ae78b142125d.png
[http_192.168.8.1_2222_add_a_1_b_2]: http://192.168.8.1:2222/add?a=1&b=2
[20190928164508995.png]: /images/20230810/94ab633e93dd42b787a43cf287dc97af.png