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<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-bus-amqp</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-actuator</artifactId>
		</dependency>

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spring.rabbitmq.host=localhost
spring.rabbitmq.port=5672
spring.rabbitmq.username=guest
spring.rabbitmq.password=guest

spring.cloud.bus.enabled=true
spring.cloud.bus.trace.enabled=true
management.endpoints.web.exposure.include=bus-refresh

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package org.config.client;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@SpringBootApplication
@RestController
@EnableEurekaClient
@RefreshScope
public class ConfigClientApplication {
	 /**
     * http://localhost:8881/actuator/bus-refresh
     */
    public static void main(String[] args) {
        SpringApplication.run(ConfigClientApplication.class, args);
    }
    @Value("${foo}")
    String foo;
    @RequestMapping(value = "/getFoo")
    public String getFoo(){
        return foo;
    }
    @Value("${democonfigclient.message}")
    String democonfigclientMessage;
    @RequestMapping(value = "/getDemoconfigclientMessage")
    public String getDemoconfigclientMessage(){
        return democonfigclientMessage;
    }
}

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package org.config.client;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
public class PostTest {
	public static void main(String[] args) {
		try {
			URL url = new URL("http://localhost:8881/actuator/bus-refresh");// 创建连接
			HttpURLConnection connection = (HttpURLConnection) url.openConnection();
			connection.setDoOutput(true);
			connection.setDoInput(true);
			connection.setUseCaches(false);
			connection.setInstanceFollowRedirects(true);
			connection.setRequestMethod("POST"); // 设置请求方式
			connection.setRequestProperty("Accept", "application/json"); // 设置接收数据的格式
			connection.setRequestProperty("Content-Type", "application/json"); // 设置发送数据的格式
			connection.connect();
			OutputStreamWriter out = new OutputStreamWriter(connection.getOutputStream(), "UTF-8"); // utf-8编码
			out.flush();
			out.close();
			int code = connection.getResponseCode();
			InputStream is = null;
			if (code == 200) {
				is = connection.getInputStream();
			} else {
				is = connection.getErrorStream();
			}
			// 读取响应
			int length = (int) connection.getContentLength();// 获取长度
			if (length != -1) {
				byte[] data = new byte[length];
				byte[] temp = new byte[512];
				int readLen = 0;
				int destPos = 0;
				while ((readLen = is.read(temp)) > 0) {
					System.arraycopy(temp, 0, data, destPos, readLen);
					destPos += readLen;
				}
				String result = new String(data, "UTF-8"); // utf-8编码
				System.out.println(result);
			}
 		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}