附上原代码：备注：需要下载一个json.jar的包放在src下面；
package Sementic; import org.json.JSONArray; import org.json.JSONObject; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.List; import java.util.Map; import Task.TaskVal; rameter run() { String output = new String(); String out = sendGet(""); return output; } public String sendGet(String url) { String result = ""; BufferedReader in = null;// 读取响应输入流 StringBuffer sb = new StringBuffer();// 存储参数 String params = "";// 编码之后的参数 try { // 编码请求参数 //System.out.println(TAG + parameters.size()); String full_url = "http://122.228.236.80:8007/web_connect/index.php/Home/Question/getQuestionAnswer?content=报销&user_id=15"; // params =java.net.URLEncoder.encode("content= 报销&user_id=15", "UTF-8"); // String full_url = url + "?" + params; //System.out.println(full_url); // 创建URL对象 //full_url = "http://122.228.236.80:8007/android_connect/get_page_info.php"; java.net.URL connURL = new java.net.URL(full_url); // 打开URL连接 java.net.HttpURLConnection httpConn = (java.net.HttpURLConnection) connURL.openConnection(); httpConn.connect(); // 响应头部获取 Map<String, List<String>> headers = httpConn.getHeaderFields(); // 定义BufferedReader输入流来读取URL的响应,并设置编码方式 in = new BufferedReader(new InputStreamReader(httpConn.getInputStream(), "UTF-8")); String line; // 读取返回的内容 while ((line = in.readLine()) != null) { JSONObject json = new JSONObject(line); JSONArray jsonArray = json.getJSONArray("data"); String data = jsonArray.getString(0); JSONObject js = new JSONObject(data); String que = js.getString("question_key"); String ques = js.getString("question"); System.out.println(data); System.out.println(que); System.out.println(ques); result += line; } } catch (Exception e) { e.printStackTrace(); } finally { try { if (in != null) { in.close(); } } catch (IOException ex) { ex.printStackTrace(); } } return result; }文章来源: 网页爬取--小白入门