http接口调用

package zzx;

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;

public class HttpUtils {

    public static final String GET_URL = "http://192.168.70.181:9999/th-gjj/PersonalRegisterAction_getPersonMessByCard.action?zjhm=220502440716081";
//    public static final String POST_URL = "http://112.4.27.9/mall-back/if_user/store_list";
    // 妙兜测试接口
    public static final String POST_URL =
            "http://192.168.70.181:9999/th-gjj/PersonalRegisterAction_getPersonMessByCardAndName.action?zjhm=220502440716081&xingming=王佰贵";
    
    /**
     * 接口调用 GET
     */
    public static void httpURLConectionGET() {
        try {
            URL url = new URL(GET_URL);    // 把字符串转换为URL请求地址
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();// 打开连接
            connection.connect();// 连接会话
            // 获取输入流
            BufferedReader br = new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8"));
            String line;
            StringBuilder sb = new StringBuilder();
            while ((line = br.readLine()) != null) {// 循环读取流
                sb.append(line);
            }
            br.close();// 关闭流
            connection.disconnect();// 断开连接
            System.out.println(sb.toString());
        } catch (Exception e) {
            e.printStackTrace();
            System.out.println("失败!");
        }
    }
    
    /**
     * 接口调用  POST
     */
    public static void httpURLConnectionPOST () {
        try {
            URL url = new URL(POST_URL);
            
            // 将url 以 open方法返回的urlConnection  连接强转为HttpURLConnection连接  (标识一个url所引用的远程对象连接)
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();// 此时cnnection只是为一个连接对象,待连接中
            
            // 设置连接输出流为true,默认false (post 请求是以流的方式隐式的传递参数)
            connection.setDoOutput(true);
            
            // 设置连接输入流为true
            connection.setDoInput(true);
            
            // 设置请求方式为post
            connection.setRequestMethod("POST");
            
            // post请求缓存设为false
            connection.setUseCaches(false);
            
            // 设置该HttpURLConnection实例是否自动执行重定向
            connection.setInstanceFollowRedirects(true);
            
            // 设置请求头里面的各个属性 (以下为设置内容的类型,设置为经过urlEncoded编码过的from参数)
            // application/x-javascript text/xml->xml数据 application/x-javascript->json对象 application/x-www-form-urlencoded->表单数据
            // ;charset=utf-8 必须要，不然妙兜那边会出现乱码【★★★★★】
            //connection.setRequestProperty("Content-Type", "application/x-javascript->json;charset=utf-8");    
            connection.setRequestProperty("accept", "*/*;charset=UTF-8");
            // 建立连接 (请求未开始,直到connection.getInputStream()方法调用时才发起,以上各个参数设置需在此方法之前进行)
            connection.connect();
            
//            // 创建输入输出流,用于往连接里面输出携带的参数,(输出内容为?后面的内容)
//            DataOutputStream dataout = new DataOutputStream(connection.getOutputStream());
//            
//           String zjhm = "zjhm="+ URLEncoder.encode("zjhm", "utf-8");        // 已修改【改为错误数据，以免信息泄露】
////           String passWord = "&passWord="+ URLEncoder.encode("10111", "utf-8");                // 已修改【改为错误数据，以免信息泄露】
////           String idCard = "&idCard="+ URLEncoder.encode("1111", "utf-8");                // 已修改【改为错误数据，以免信息泄露】
//            
//            //格式 parm = aaa=111&bbb=222&ccc=333&ddd=444
//            String parm = zjhm;
//          
//           // 将参数输出到连接
//           dataout.writeBytes(parm);
//         // 输出完成后刷新并关闭流
//           dataout.flush();
//          dataout.close(); // 重要且易忽略步骤 (关闭流,切记!)
//           System.out.println(connection.getResponseCode());
//           System.out.println(connection.getInputStream());
            
            // 连接发起请求,处理服务器响应  (从连接获取到输入流并包装为bufferedReader)
            BufferedReader bf = new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8"));
            String line;
            StringBuilder sb = new StringBuilder(); // 用来存储响应数据
            
            // 循环读取流,若不到结尾处
            while ((line = bf.readLine()) != null) {
//                sb.append(bf.readLine());
                sb.append(line).append(System.getProperty("line.separator"));
            }
            bf.close();    // 重要且易忽略步骤 (关闭流,切记!)
            connection.disconnect(); // 销毁连接
            System.out.println(sb.toString());
    
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    
    public static void main(String[] args) {
//        httpURLConectionGET();
        httpURLConnectionPOST();
    }
}