JS实现前端缓存的方法

/
  定义需要在用户登录的时候获取到本地的数据字典类别
 /
var clsCodes = {clsCodes :
    [BOOL,
     STATUS,
     USER_TYPE,
     REPORT_STATUS
   ]
};
 
/
  获取数据字典到本地
 /
var dicts;

function getDicts() {
  $.post(getContextPath() + /api/sys/getDictList,
      clsCodes,
      function(resultBean, status, xhRequest) {
        if (resultBean.data != undefined) {
          dicts = resultBean.data;
        }
      }, 
      'json');
}

/
  根据多个分类编号获取多个字典集合
  @param clsCodes
  @return {{clsCode : {code1:name1,code2:name2...}}, ...}
 /
@SuppressWarnings({ unchecked, rawtypes })
@ResponseBody
@RequestMapping(getDictList)
public ResultBean getDictList(@RequestParam(value = clsCodes[], required = true) String[] clsCodes) {
  ResultBean rb = new ResultBean();
   
  Map<string, string="">> dictCache = (Map<string, string="">>) CacheManager.getInstance().get(CacheConstants.DICT);
  Map dictMap = new LinkedHashMap<>(); //使用LinkedHashMap保证顺序
 
  if(dictCache != null){
    for(String clsCode: clsCodes){
      dictMap.put(clsCode, dictCache.get(clsCode));
    }
  }else{
    rb.setMessage(缓存中拿不到字典信息！);
    rb.setSuess(false);
  }
 
  rb.setData(dictMap);
  return rb;
}</string,></string,>