-java
一、在 eureka 服務治理框架中,微服務與微服務之間經過 Http 協議進行通訊; 二、用戶微服務做爲消費方、電影微服務做爲提供方都註冊到 EurekaServer 中; 三、在電影微服務Web層經過 application.yml 的硬編碼配置方式實現服務之間的通訊;
<?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> <artifactId>springms-consumer-movie</artifactId> <version>1.0-SNAPSHOT</version> <packaging>jar</packaging> <parent> <groupId>com.springms.cloud</groupId> <artifactId>springms-spring-cloud</artifactId> <version>1.0-SNAPSHOT</version> </parent> <dependencies> <!-- web模塊 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!-- 監控和管理生產環境的模塊 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <!-- 客戶端發現模塊 --> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-eureka</artifactId> </dependency> </dependencies> </project>
spring: application: name: springms-consumer-movie server: port: 7901 user: userServicePath: http://localhost:7900/simple/ eureka: client: # healthcheck: # enabled: true serviceUrl: defaultZone: http://admin:admin@localhost:8761/eureka instance: prefer-ip-address: true instance-id: ${spring.application.name}:${spring.cloud.client.ipAddress}:${spring.application.instance_id:${server.port}}
package com.springms.cloud.entity; import java.math.BigDecimal; public class User { private Long id; private String username; private String name; private Short age; private BigDecimal balance; public Long getId() { return this.id; } public void setId(Long id) { this.id = id; } public String getUsername() { return this.username; } public void setUsername(String username) { this.username = username; } public String getName() { return this.name; } public void setName(String name) { this.name = name; } public Short getAge() { return this.age; } public void setAge(Short age) { this.age = age; } public BigDecimal getBalance() { return this.balance; } public void setBalance(BigDecimal balance) { this.balance = balance; } }
package com.springms.cloud.controller; import com.springms.cloud.entity.User; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Value; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RestController; import org.springframework.web.client.RestTemplate; @RestController public class MovieController { @Autowired private RestTemplate restTemplate; @Value("${user.userServicePath}") private String userServicePath; @GetMapping("/movie/{id}") public User findById(@PathVariable Long id) { return this.restTemplate.getForObject(this.userServicePath + id, User.class); } }
package com.springms.cloud; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.netflix.eureka.EnableEurekaClient; import org.springframework.context.annotation.Bean; import org.springframework.web.client.RestTemplate; /** * 電影微服務,也註冊到 EurekaServer 中,經過 Http 協議訪問已註冊到生態圈中的用戶微服務。 * * @author hmilyylimh * * @version 0.0.1 * * @date 2017/9/17 * */ @SpringBootApplication @EnableEurekaClient public class MsConsumerMovieApplication { @Bean public RestTemplate restTemplate(){ return new RestTemplate(); } public static void main(String[] args) { SpringApplication.run(MsConsumerMovieApplication.class, args); System.out.println("【【【【【【 電影微服務 】】】】】】已啓動."); } }
/**************************************************************************************** 1、電影微服務,也註冊到 EurekaServer 中,經過 Http 協議訪問已註冊到生態圈中的用戶微服務: 一、啓動 springms-discovery-eureka 模塊服務,啓動1個端口; 二、啓動 springms-provider-user 模塊服務,啓動1個端口; 三、啓動 springms-consumer-movie 模塊服務,啓動1個端口; 四、在瀏覽器輸入地址 http://localhost:7900/simple/1 能夠看到信息成功的被打印出來,說明用戶微服務正常; 五、在瀏覽器輸入地址 http://localhost:8761 並輸入用戶名密碼 admin/admin 進入Eureka微服務顯示在網頁中,驗證用戶微服務、電影微服務確實註冊到了 eureka 服務中; 六、在瀏覽器輸入地址http://localhost:7901/movie/1 能夠看到用戶信息成功的被打印出來; ****************************************************************************************/
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