将request中的参数转换成Map

    /**
     * 将request中的参数转换成Map
     * @param request
     * @return
     */
    private static Map<String, String> convertRequestParamsToMap(HttpServletRequest request) {
        Map<String, String> paramsMap = new HashMap<>(16);
        Set<Map.Entry<String, String[]>> entrySet = request.getParameterMap().entrySet();

        for (Map.Entry<String, String[]> entry : entrySet) {
            String name = entry.getKey();
            String[] values = entry.getValue();
            int size = values.length;
            if (size == 1) {
                paramsMap.put(name, values[0]);
            } else {
                paramsMap.put(name, "");
            }
        }
        System.out.println(paramsMap);
        return paramsMap;
    }