gson格式化参数 对象转Map

前台传json到后台接收：

String  params = request.getParameters("paramtes");

Map<String, Map<String,Object>> searchMap = new Gson().fromJson(searchParams, new TypeToken<HashMap<String, Map<String, String>>>() {
}.getType());

例子：

    /**
     * 批量封禁用户
     * @param listJson
     * @param logId
     * @return
     */
    @RequestMapping(value = "/reportManager/batchFreezeUser", method = RequestMethod.POST)
    @ResponseBody
    public OperateResponse batchFreezeUser(@RequestParam(value = "listJson") String listJson, @LogId Long logId) {
        List<Map<String, Object>> json = new Gson().fromJson(listJson, new TypeToken<List<Map<String, Object>>>() {
        }.getType());　　//用gson转换成json对象
        json.stream().forEach(item->{
            long userId = Long.parseLong(item.get("userId").toString());
            String freezeReason = item.get("freezeReason").toString();
            reportService.closureUser(userId, freezeReason, 0, logId);
        });
        return OperateResponse.obtainSuccessResponse(json.size());
    }
}