如何在Angular中刷新页面后检索本地存储值？

Question

I put the input values into web local storage.

But my need is, to access the local storage value into the ng-model.

After click the submit button, local storage values to be append in table row.

I tried but it doesnot happen.

Please refer the below code.

 var helloApp = angular.module("helloApp", ["ngStorage"]); helloApp.controller("CompanyCtrl", function($scope, $localStorage) { $scope.companies = [{ 'name': 'Xerago Technologies', 'employees': 125000, 'headoffice': 'Bangalore' }, { 'name': 'Cognizant Technologies', 'employees': 100000, 'headoffice': 'Bangalore' }, { 'name': 'Wipro', 'employees': 115000, 'headoffice': 'Bangalore' }, { 'name': 'Tata Consultancy Services (TCS)', 'employees': 150000, 'headoffice': 'Bangalore' }, { 'name': 'HCL Technologies', 'employees': 90000, 'headoffice': 'Noida' }, ]; $scope.addRow = function() { $scope.message = { 'name': $scope.name, 'employees': $scope.employees, 'headoffice': $scope.headoffice }; $scope.companies.push($localStorage.message); console.log($localStorage.message); }; }); 

 <link rel="stylesheet" href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script> <script src="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script> <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.17/angular.min.js"></script> <script src="https://rawgithub.com/gsklee/ngStorage/master/ngStorage.js"></script> <div ng-app="helloApp" ng-controller="CompanyCtrl"> <table class="table"> <tr> <th>Name </th> <th>Employees </th> <th>Head Office </th> </tr> <tr ng-repeat="company in companies"> <td>{{company.name}} </td> <td>{{company.employees}} </td> <td>{{company.headoffice}} </td> </tr> </table> <form class="form-horizontal" role="form" ng-submit="addRow()"> <div class="form-group"> <label class="col-md-2 control-label">Name</label> <div class="col-md-4"> <input type="text" class="form-control" name="name" ng-model="name" /> </div> </div> <div class="form-group"> <label class="col-md-2 control-label">Employees</label> <div class="col-md-4"> <input type="text" class="form-control" name="employees" ng-model="employees" /> </div> </div> <div class="form-group"> <label class="col-md-2 control-label">Headoffice</label> <div class="col-md-4"> <input type="text" class="form-control" name="headoffice" ng-model="headoffice" /> </div> </div> <div class="form-group"> <div style="padding-left:110px"> <input type="submit" value="Submit" class="btn btn-primary" /> </div> </div> </form> </div> 

Now i can able to push the input values in table and also available in local storage..

But when i refresh the page, the last updated data hides. I think i need to know how to get.

Please help on this.

Answer 1

Try this : as local storage will not work here, so you need to check from demo link at out side : So try this link : DEMO

  var helloApp = angular.module("helloApp", []); helloApp.controller("CompanyCtrl", function($scope, $window) { $scope.companies = JSON.parse($window.localStorage.getItem('compnyData')); console.log($scope.companies); $scope.addRow = function() { $scope.message = { 'name': $scope.name, 'employees': $scope.employees, 'headoffice': $scope.headoffice }; $scope.name = ''; $scope.employees = ''; $scope.headoffice = ''; var tempCompanies = []; var tempData = JSON.parse($window.localStorage.getItem('compnyData')); console.log(tempData); if (tempData != null) { console.log('not null'); tempData.push($scope.message); $window.localStorage.setItem('compnyData', JSON.stringify(tempData)); $scope.companies = tempData; } else { $window.localStorage.setItem('compnyData', JSON.stringify([$scope.message])); $scope.companies = [$scope.message]; } }; }); 

 <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.22/angular.min.js"></script> <div ng-app="helloApp" ng-controller="CompanyCtrl"> <table class="table"> <tr> <th>Name </th> <th>Employees </th> <th>Head Office </th> </tr> <tr ng-repeat="company in companies"> <td>{{company.name}} </td> <td>{{company.employees}} </td> <td>{{company.headoffice}} </td> </tr> </table> <div class="form-group"> <label class="col-md-2 control-label">Name</label> <div class="col-md-4"> <input type="text" class="form-control" name="name" ng-model="name" /> </div> </div> <div class="form-group"> <label class="col-md-2 control-label">Employees</label> <div class="col-md-4"> <input type="text" class="form-control" name="employees" ng-model="employees" /> </div> </div> <div class="form-group"> <label class="col-md-2 control-label">Headoffice</label> <div class="col-md-4"> <input type="text" class="form-control" name="headoffice" ng-model="headoffice" /> </div> </div> <div class="form-group"> <div style="padding-left:110px"> <input type="button" ng-click="addRow()" value="Submit" class="btn btn-primary" /> </div> </div> </div> 

Answer 2

you need to use set and get properties for localstorage to save and retrive your data.

assign your new data to message

 $scope.message = {'name':$scope.name, 'employees': $scope.employees, 'headoffice':$scope.headoffice};

to set the data in localstorage.....

localStorage.setItem("newData",$scope.message);

to get the data on click.....

localStorage.getItem("newData");