import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.net.ConnectException; import java.net.HttpURLConnection; import java.net.URL; import net.sf.json.JSONObject; /** * 发起http请求并获取结果 * @author zyz * @date 20140522 * */ public class HttpRequestUtil { /** * 发起http请求并获取结果 * * @param requestUrl 请求地址 * @param requestMethod 请求方式(GET、POST) * @param outputStr 提交的数据 * @return JSONObject(通过JSONObject.get(key)的方式获取json对象的属性值) */ public static JSONObject httpRequest(String requestUrl, String requestMethod, String outputStr) { JSONObject jsonObject = null; StringBuffer buffer = new StringBuffer(); InputStream inputStream=null; try { URL url = new URL(requestUrl); HttpURLConnection httpUrlConn = (HttpURLConnection) url.openConnection(); httpUrlConn.setDoOutput(true); httpUrlConn.setDoInput(true); httpUrlConn.setUseCaches(false); // 设置请求方式(GET/POST) httpUrlConn.setRequestMethod(requestMethod); if ("GET".equalsIgnoreCase(requestMethod)) httpUrlConn.connect(); // 当有数据需要提交时 if (null != outputStr) { OutputStream outputStream = httpUrlConn.getOutputStream(); // 注意编码格式,防止中文乱码 outputStream.write(outputStr.getBytes("UTF-8")); outputStream.close(); } //将返回的输入流转换成字符串 inputStream = httpUrlConn.getInputStream(); InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8"); BufferedReader bufferedReader = new BufferedReader(inputStreamReader); String str = null; while ((str = bufferedReader.readLine()) != null) { buffer.append(str); } bufferedReader.close(); inputStreamReader.close(); // 释放资源 inputStream.close(); inputStream = null; httpUrlConn.disconnect(); jsonObject = JSONObject.fromObject(buffer.toString()); } catch (ConnectException ce) { ce.printStackTrace(); System.out.println("Weixin server connection timed out"); } catch (Exception e) { e.printStackTrace(); System.out.println("http request error:{}"); }finally{ try { if(inputStream!=null){ inputStream.close(); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } return jsonObject; } }