java中使用Http调用数据

package com.bridata.dmp.property.common;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.StatusLine;
import org.apache.http.client.HttpClient;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

import java.util.ArrayList;
import java.util.List;

/**
 * Date: 2021/12/24:17:52  <br/>
 * Description:
 * @author admin
 */
public class HttpClientUtils {

    //判断登录
    public static final String isLogin = "/isLogin";
    //登录
    public static final String login = "/login";
    //访问地址
    public static final String LOCATION = "http://地址";



    //get接口掉方法
    public static String isLogin(String driveid,String t,String t1){
        //创建一个默认的HttpClient
        HttpClient httpClient = HttpClientBuilder.create().build();
        //HttpClient httpClient = new DefaultHttpClient();
        StringBuilder sb = new StringBuilder();
        sb.append(LOCATION);
        sb.append(isLogin);
        sb.append("?driveid=");
        sb.append(driveid);
        sb.append(",");
        sb.append("t=");
        sb.append(t);
        sb.append(",");
        sb.append("t1=");
        sb.append(t1);
        //目标URL
        String url = sb.toString();
        //以get方式请求网页
        HttpGet httpGet = new HttpGet(url);

        String entityStr = null;
        try {
            HttpResponse httpResponse = httpClient.execute(httpGet);
            HttpEntity entity = httpResponse.getEntity();
            StatusLine statusLine = httpResponse.getStatusLine();
            int statusCode = statusLine.getStatusCode();
            System.out.println("statusCode:"+statusCode);
            entityStr = EntityUtils.toString(entity);
            System.out.println("响应返回内容:"+entityStr);
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        return entityStr;
    }

    public static String myGet(String driveid,String t,String t1) {
        String responseBody=null;

        StringBuilder sb=new StringBuilder();
        sb.append(LOCATION);
        sb.append(isLogin);
        sb.append("?driveid=");
        sb.append(driveid);
        sb.append(",");
        sb.append("t=");
        sb.append(t);
        sb.append(",");
        sb.append("t1=");
        sb.append(t1);
        //目标URL
        String url = sb.toString();
        //创建一个默认的HttpClient
        HttpClient httpclient = HttpClientBuilder.create().build();
        //HttpClient httpclient = new DefaultHttpClient();
        try {
            //以get方式请求网页
            HttpGet httpget = new HttpGet(url);
            //打印请求地址
            System.out.println("executing request " + httpget.getURI());
            //创建响应处理器处理服务器响应内容
            ResponseHandler<String> responseHandler = new BasicResponseHandler();
            //执行请求并获取结果
            responseBody = httpclient.execute(httpget, responseHandler);
            System.out.println(responseBody);
        }catch(Exception e){
            e.printStackTrace();
        }finally {
            // 当不再需要HttpClient实例时,关闭连接管理器以确保释放所有占用的系统资源
            httpclient.getConnectionManager().shutdown();
            return responseBody;
        }
    }


    //Post请求
    public static void myPost(){
        //目标URL
        String url = "http://地址/login";
        //创建一个默认的HttpClient
        HttpClient httpclient = HttpClientBuilder.create().build();
        //HttpClient httpclient = new DefaultHttpClient();
        try {
            //以post方式请求网页
            HttpPost httppost = new HttpPost(url);
            //添加HTTP POST参数
            List<NameValuePair> nvps = new ArrayList<NameValuePair>();
            nvps.add(new BasicNameValuePair("username", "5"));
            nvps.add(new BasicNameValuePair("password", "6"));

            //将POST参数以UTF-8编码并包装成表单实体对象
            httppost.setEntity(new UrlEncodedFormEntity(nvps, "UTF-8"));
            //打印请求地址
            System.out.println("executing request " + httppost.getRequestLine().getUri());
            //创建响应处理器处理服务器响应内容
            ResponseHandler<String> responseHandler = new BasicResponseHandler();
            //执行请求并获取结果
            String responseBody = httpclient.execute(httppost, responseHandler);
            System.out.println(responseBody);
        }catch(Exception e){
            e.printStackTrace();
        }finally {
            // 当不再需要HttpClient实例时,关闭连接管理器以确保释放所有占用的系统资源
            httpclient.getConnectionManager().shutdown();
        }
    }

}