java 通过HTTPClient工具类发送请求-蒲公英云

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<Department> list = departmentService.getDepts();
        return Msg.success().add("depts", list);
    }