HttpServletRequest request 转 Json

    private void saveOperationRecord(HttpServletRequest req, ......){
        //从 request 请求中 提取所有的form-data 参数,将参数转换成json 类型参数
        Enumeration<String> parameterNames = req.getParameterNames();
        String parm=null;
        while(parameterNames.hasMoreElements()){
            parm=parameterNames.nextElement();
            parmMap.put(parm, req.getParameter(parm));
        }
        String jsonString = JSON.toJSONString(parmMap);
        System.out.println("jsonString=========="+jsonString);
    }

mikuriya，偶遇良缘。