public static String receivePost(HttpServletRequest request) throws IOException, UnsupportedEncodingException {
// 读取请求内容
BufferedReader br = new BufferedReader(new InputStreamReader(request.getInputStream()));
String line = null;
StringBuilder sb = new StringBuilder();
while((line = br.readLine())!=null){
sb.append(line);
}
// 将资料解码
String reqBody = sb.toString();
return URLDecoder.decode(reqBody, HTTP.UTF_8);
}