POM

<?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.boolib</groupId>
<artifactId>server_order</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>server_order</name>
<description>服务消费者</description>

<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.4.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</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.SR1</spring-cloud.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>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</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>${spring-cloud.version}</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>

启动类

@SpringBootApplication
@EnableFeignClients
@EnableDiscoveryClient
public class ServerOrderApplication {

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

}

配置参数

#lease-renewal-interval-in-seconds
# 每间隔1s，向服务端发送一次心跳，证明自己依然”存活“
eureka.instance.lease-renewal-interval-in-seconds=1

#lease-expiration-duration-in-seconds
# 告诉服务端，如果我2s之内没有给你发心跳，就代表我“死”了，将我踢出掉。
eureka.instance.lease-expiration-duration-in-seconds=5

server.port=8867
spring.application.name=service-order
eureka.client.service-url.defaultZone=http://www.ubiubiu.com:8888/eureka/

feign.hystrix.enabled=false

远程调用

@Service
@FeignClient("service-provide")
public interface OrderService {

@GetMapping("/list")
List<String> getList();

}

Controller调用

@Slf4j
@RestController
public class WebController {

@Autowired
private  OrderService orderService;

@GetMapping("/list")
public List<String> getList(){

return orderService.getList();
}
}

使用的是feign,默认负载均衡

普通rpc负载均衡

@Bean
@LoadBalanced
public RequestTemplate requestTemplate(){
return  new RequestTemplate();
}