Java后端使用HttpServleRequest接收前端JSON传参

BufferedReader bf = new BufferedReader(new InputStreamReader((ServletInputStream) request.getInputStream(), "utf-8"));

StringBuffer sb = new StringBuffer();

String temp = "";

while ((temp=bf.readLine())!= null){

  sb.append(temp);

}

bf.close();

JSONObject json = new JSONObject.parseObject(sb.toString());

System.out.println(json);