@RequestMapping("/weixinpay/callback")public String callBack(HttpServletRequest request){ InputStream is = request.getInputStream(); String xml = StreamUtil.inputStream2String(is, "UTF-8") /** * 后面把xml轉成Map根據數據作邏輯處理 */}

/** * InputStream流轉換成String字符串 * @param inStream InputStream流 * @param encoding 編碼格式 * @return String字符串 */public static String inputStream2String(InputStream inStream, String encoding){ String result = null; try { if(inStream != null){  ByteArrayOutputStream outStream = new ByteArrayOutputStream();  byte[] tempBytes = new byte[_buffer_size];  int count = -1;  while((count = inStream.read(tempBytes, 0, _buffer_size)) != -1){    outStream.write(tempBytes, 0, count);  }  tempBytes = null;  outStream.flush();  result = new String(outStream.toByteArray(), encoding); } } catch (Exception e) { result = null; } return result;}