java 通过HTTPClient工具类发送请求

客户端code 如下： 

package com.eas.bojoy;

import java.io.IOException;

import org.apache.http.HttpEntity;
import org.apache.http.ParseException;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

public class TestHttpClient {
	public static void main(String[] args) {
		// 1.获得一个HttpClient对象
		CloseableHttpClient httpClient = HttpClients.createDefault();
		// 2.生成一个HttpGet请求
		HttpGet httpGet = new HttpGet("http://localhost:8080/testSSM/depts");
		CloseableHttpResponse response = null;
		// 3.执行get请求

		try {
			response = httpClient.execute(httpGet);
		} catch (IOException e1) {
			e1.printStackTrace();
		}
		String result="";
		HttpEntity entity = response.getEntity();

			try {
				if(entity != null)
				result = EntityUtils.toString(entity);
			} catch (ParseException | IOException e) {
				e.printStackTrace();
			}finally {
				try {
					if(response != null)
					response.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		System.out.println("结果为："+result);	
		
	}
}

服务端code如下： 

	@RequestMapping(value="/depts")
	@ResponseBody
	public Msg getDepts(){
		List list = departmentService.getDepts();
	    return Msg.success().add("depts", list);
	}

result结果如下：