public static String doPost(String urlStr, Map<String, Object> paramMap) throws Exception { URL url = new URL(urlStr); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setRequestMethod(SERVLET_POST); String paramStr = prepareParam(paramMap); conn.setRequestProperty("Content-type", "application/x-www-form-urlencoded"); conn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)"); conn.setRequestProperty("Accept", "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-powerpoint, application/vnd.ms-excel, application/msword, */*"); conn.setRequestProperty("Accept-Language", "zh-cn"); conn.setRequestProperty("UA-CPU", "x86"); conn.setUseCaches(false); conn.setConnectTimeout(6 * 1000); conn.setReadTimeout(6 * 1000); conn.setDoOutput(true); conn.setDoInput(true); conn.setRequestProperty("Charset", "utf-8"); OutputStream os = conn.getOutputStream(); os.write(paramStr.toString().getBytes("utf-8")); os.close(); String result = ""; if (conn.getResponseCode() == conn.HTTP_OK) { BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8")); String line; while ((line = br.readLine()) != null) { result += line; } System.out.println(result); br.close(); return result; } return result; }