所需依赖：servlet-api    @RequestMapping("/getPost")    public String getJson(HttpServletRequest request) throws IOException {        String sret = null;        String ContentType = "";        ContentType = request.getHeader("Content-Type");        if (ContentType.equalsIgnoreCase("application/x-www-form-urlencoded")) {//            这里Map中的泛型最好写上 方便idea自动生成entries            Map<String, String[]> params = request.getParameterMap();//            Set泛型写上才可以遍历entries            Set<Map.Entry<String, String[]>> entries = params.entrySet();            String queryString = "";            for (String key : params.keySet()) {                String[] values = params.get(key);                for (int i = 0; i < values.length; i++) {                    String value = values[i];                    queryString += key + "=" + value + "&";                }            }            if (queryString.length() > 1) {                // 去掉最后一个空格                queryString = queryString.substring(0, queryString.length() - 1);            }            sret = queryString;        } else if (ContentType.equalsIgnoreCase("multipart/form-data")) {            try {                StringBuffer info = new StringBuffer();                ServletInputStream in = request.getInputStream();                BufferedInputStream buf = new BufferedInputStream(in);                byte[] buffer = new byte[1024];                int iRead;                while ((iRead = buf.read(buffer)) != -1) {                    info.append(new String(buffer, 0, iRead, "UTF-8"));                    sret = info.toString();                }            } catch (UnsupportedEncodingException e) {                // TODO Auto-generated catch block                e.printStackTrace();            } catch (IOException e) {                // TODO Auto-generated catch block                e.printStackTrace();            }        } else {        }        return sret;    }    @RequestMapping("/get")    public static String getGetParam(HttpServletRequest request) {        String sret = null;        String queryString = null;//只能获取get参数        queryString = request.getQueryString();        sret = queryString;        return sret;    }