从request中获取请求json格式的参数信息

@RequestMapping("/user")
public class UserController {

    //获取参数
    public static JSONObject getParameters(HttpServletRequest request) throws IOException {
        BufferedReader streamReader = new BufferedReader(new InputStreamReader(request.getInputStream(), "UTF-8"));
        StringBuilder responseStrBuilder = new StringBuilder();
        String inputStr;
        while ((inputStr = streamReader.readLine()) != null)
            responseStrBuilder.append(inputStr);
        JSONObject jsonObject = JSONObject.parseObject(responseStrBuilder.toString());
        return jsonObject;
    }

    @PostMapping("/param")
    public void getParam(HttpServletRequest request) throws IOException {
        getParameters(request);
    }

}