angularjs 本地數據存儲LocalStorage

一、定義一個服務

//=========本地存儲數據服務============
    app.factory('locals', ['$window', function ($window) {
        return {        //存儲單個屬性
            set: function (key, value) {
                $window.localStorage[key] = value;
            },        //讀取單個屬性
            get: function (key, defaultValue) {
                return $window.localStorage[key] || defaultValue;
            },        //存儲對象，以JSON格式存儲
            setObject: function (key, value) {
                $window.localStorage[key] = JSON.stringify(value);//將對象以字符串保存
            },        //讀取對象
            getObject: function (key) {
                return JSON.parse($window.localStorage[key] || '{}');//獲取字符串並解析成對象
            }

        }
    }]);

二、controller中調用： 
先注入服務，再set get

app.controller('supplyAddCtrl', function ($scope, $http, $location, locals, $timeout, $compile) {

   //存
     locals.set("firstpos", firstpos);//字符串
     locals.setObject("secondpos", secondpos);//對象

   //取
    locals.get("firstpos");
    locals.getObject("secondpos");
   }