javascript - 在 Angular 中刷新页面后如何检索本地存储值？

Question

我将输入值放入网络本地存储。

但我的需要是，将本地存储值访问到 ng-model 中。

点击提交按钮后，本地存储值将追加到表行中。

我试过了，但没有成功。

请引用下面的代码。

  

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>

现在我可以将输入值推送到表中，也可以在本地存储中使用..

但是当我刷新页面时，最后更新的数据隐藏了。我想我需要知道如何获得。

请帮忙解决这个问题。

Answer 1

试试这个:因为本地存储在这里不起作用，所以你需要从外面的演示链接检查:所以试试这个链接: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>