在AngularJS返回空白页之间共享数据 [英] Sharing Data between pages in AngularJS returning empty

问题描述

通常我写SPA的和控制器之间共享数据与服务的简单。

Typically i write SPA's and sharing data between controllers is simple with a service.

我不使用的SPA格式（不使用NG-视图），并试图在页面之间，但在第二页的负荷共享数据（获取数据），它是空的。

I am not using an SPA format (not using ng-view), and trying to share data between pages but on load of the second page (to get data) its empty.

PAGE1（index.html的）：

<div ng-controller="CreateList">
    <input type="text" ng-model="myValue">
    <div ng-click="share(myValue)">Share</div>
</div>

第2页：

<div ng-controller="GeList">
    <p>{{ sharedData  }}</p>
</div>

JS：

app.controller('CreateList', function($scope, $location, $http, serviceShareData) {

    $scope.share= function (selectedValue) {

        if (selectedValue === undefined ) {
            console.log ("its undefined");
        }       
        else {
            console.log (selectedValue);

            serviceShareData.addData(selectedValue);
            window.location.href = "PAGE2.html";
        }
    }

});


app.controller('GeList', function($scope, $location, $http, serviceShareData) { 

    $scope.sharedData = serviceShareData.getData();

    console.log($scope.sharedData);

});

app.service('serviceShareData', function() {
    var myData = [];

    var addData = function(newObj) {
        myData.push(newObj);
    }

    var getData = function(){
        return myData;
    }

    return {
        addData: addData,
        getData: getData
    };
});

下面是一个plunkr： http://plnkr.co/edit/6VHJhirnHZxBpKOvqzI6?p = preVIEW

Here's a plunkr: http://plnkr.co/edit/6VHJhirnHZxBpKOvqzI6?p=preview

推荐答案

有一个多种方式在页面之间共享数据 - 本地存储，会话存储，索引资料，饼干或者你甚至可以传给你的数据为这样一个放慢参数

There is a number of ways to share data between pages - local storage, session storage, indexedDB, cookies or you can even pass you data as a paramter like this:

window.location.href = 'page2.html?val=' + selectedValue;

下面是你的服务怎么可能使用的sessionStorage寻找一个简单的例子：

Here is a quick example of how your service may be looking using sessionStorage:

app.service('serviceShareData', function($window) {
    var KEY = 'App.SelectedValue';

    var addData = function(newObj) {
        var mydata = $window.sessionStorage.getItem(KEY);
        if (mydata) {
            mydata = JSON.parse(mydata);
        } else {
            mydata = [];
        }
        mydata.push(newObj);
        $window.sessionStorage.setItem(KEY, JSON.stringify(mydata));
    };

    var getData = function(){
        var mydata = $window.sessionStorage.getItem(KEY);
        if (mydata) {
            mydata = JSON.parse(mydata);
        }
        return myData || [];
    };

    return {
        addData: addData,
        getData: getData
    };
});

Plunkr是这里。

这篇关于在AngularJS返回空白页之间共享数据的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！