一.创建cloudparent pom项目
添加依赖
<groupId>com.abc</groupId>
<artifactId>cloud-parent</artifactId>
<version>1.0-SNAPSHOT</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.3.RELEASE</version>
<relativePath/>
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<spring-cloud.version>Finchley.RELEASE</spring-cloud.version>
</properties>
<dependencies>
<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>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
二.创建cloudserver springboot模块 :启动注册中心eureka
pom依赖
<parent>
<artifactId>cloud-parent</artifactId>
<groupId>com.abc</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>eureka-server</artifactId>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
<- 引入该依赖 默认会引入 该依赖所需要的所有的springboot依赖 ->
</dependencies>
修改application.yml
server:
port: 8761
eureka:
instance:
hostname: localhost
client:
registerWithEureka: false #声明不提供服务
fetchRegistry: false #声明不应用服务
serviceUrl:
defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/
spring:
application:
name: eureka-server
启动类
@SpringBootApplication
@EnableEurekaServer
public class EurekaServerApp {
public static void main(String[] args) {
SpringApplication.run(EurekaServerApp.class,args);
}
}
访问http://localhost:8761
三. 创建service-hello springboot model 创建微服务应用并注册
pom文件
<parent>
<artifactId>cloud-parent</artifactId>
<groupId>com.abc</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
</dependencies>
修改application.yml
server:
port: 8763
eureka:
client:
serviceUrl:
defaultZone: http://localhost:8761/eureka/
spring:
application:
name: service-hello
启动类,服务接口,及接口实现
@SpringBootApplication
@EnableEurekaClient
@RestController
public class ServiceHiApplication {
public static void main(String[] args) {
SpringApplication.run(ServiceHiApplication.class, args);
}
@Value("${server.port}")
String port;
@RequestMapping("/hello")
public String hello(@RequestParam(value = "name") String name) { //如果参数为实体类用: @RequestBody 1.如果直接 访问时需使用application/json 格式访问
//2.如果通过问服务调用,则直接传入类即可
return "hi " + name+" "+port;
}
}
四.创建client-feign springboot模块 调用微服务
修改pom依赖
<parent>
<artifactId>cloud-parent</artifactId>
<groupId>com.abc</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
</dependencies>
修改application.yml
server:
port: 8765
eureka:
client:
service-url:
defaultZone: http://localhost:8761/eureka
spring:
application:
name: client-feign
启动类 及 微服务调用类
@SpringBootApplication
@EnableEurekaClient
@EnableDiscoveryClient
@EnableFeignClients
public class ClientFeignApplication {
public static void main(String[] args) {
SpringApplication.run(ClientFeignApplication.class, args);
}
}
@FeignClient(value = "service-hello")
public interface FeiHiService {
@RequestMapping(value = "/hello",method = RequestMethod.GET)
String sayHi(@RequestParam(value = "name") String name);
}
@RestController
public class FeiHiController {
@Autowired
FeiHiService hiService;
@RequestMapping("/hello")
public String sayHello(String name){
String word = hiService.sayHi(name);
return word;
}
}
