JS获取元素值
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参考技术A 用js获取页面元素：1、getElementById()
返回一个值 或者报错null
2、getElementsByName()
返回htmlcollection
3、getElementsByTagName()
返回htmlcollection
4、getElementsByClassName()
返回htmlcollection
var vlaue =document.getElementByClassName("classname");
for(var i=0; i<value.length; i++)
console.log (value[i].value ); //对象.属性
在 Angular JS 模块中传递并获取 DOM 元素值
【中文标题】在 Angular JS 模块中传递并获取 DOM 元素值【英文标题】：Pass and get a DOM element value in Angular JS Module 【发布时间】：2016-03-21 02:04:44 【问题描述】：我是 Angular JS 的新手
我有一个html页面，它会加载一个这样的js文件
<script type="text/javascript" src="components/adf-widget-iframe/dist/adf-widget-iframe.min.js"></script>
该文件 (adf-widget-iframe.min.js) 内容如下所示
! function()
"use strict";
angular.module("adf.widget.iframe", ["adf.provider"]).config(["dashboardProvider", function(e)
e.widget("iframe",
title: "iframe",
description: "Embed an external page into the dashboard",
templateUrl: "widgetsPath/iframe/src/view.html",
controller: "iframeController",
controllerAs: "iframe",
edit:
templateUrl: "widgetsPath/iframe/src/edit.html"
,
config:
height: "420px"
)
]).controller("iframeController", ["$sce", "config", function(e, r)
r.url && (this.url = e.trustAsResourceUrl(r.url))
]), angular.module("adf.widget.iframe").run(["$templateCache", function(e)
e.put("widgetsPath/iframe/src/edit.html", "<form role=form><div class=form-group><label for=url>URL</label>
<input type=url class=form-control id=url ng-model=config.url placeholder=http://www.example.com>
//Here i need to put url from html page like from a text box.
</div><div class=form-group><label for=url>Height</label> <input type=text class=form-control id=url ng-model=config.height></div></form>"), e.put("widgetsPath/iframe/src/view.html", '<div><div class="alert alert-info" ng-if=!config.url>Please insert a url in the widget configuration</div><iframe ng-if=iframe.url class=adf-iframe style="height: config.height" src=iframe.url></iframe></div>')
])
(window);
在上面的代码中，我必须从 html 页面中获取一个值，并且需要放入 url 的位置，如锥体所示（我已经注释掉了。）
谁能帮助我如何将文本框数据放在 URL 的位置？
这是我的 html 文件
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="dashboard sample app">
<meta name="author" content="Sebastian Sdorra">
<title>Dashboard</title>
<!-- build:css css/sample.min.css -->
<!-- Bootstrap core CSS -->
<link href="components/bootstrap/dist/css/bootstrap.min.css" rel="stylesheet">
<!-- dashboard style -->
<link href="components/angular-dashboard-framework/dist/angular-dashboard-framework.min.css" rel="stylesheet">
<link href="components/adf-widget-clock/dist/adf-widget-clock.min.css" rel="stylesheet">
<link href="components/adf-widget-iframe/dist/adf-widget-iframe.min.css" rel="stylesheet">
<style>
body
padding-top: 60px;
</style>
<!-- endbuild -->
<!-- HTML5 shim and Respond.js IE8 support of HTML5 elements and media queries -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
<script src="https://oss.maxcdn.com/libs/respond.js/1.3.0/respond.min.js"></script>
<![endif]-->
<!--[if lte IE 8]>
<script>
document.createElement('adf-dashboard');
document.createElement('adf-widget');
document.createElement('adf-widget-content');
</script>
<![endif]-->
</head>
<body ng-app="adfDynamicSample">
<div class="navbar navbar-inverse navbar-fixed-top" role="navigation">
<div class="container" ng-controller="navigationCtrl as nav">
<div class="navbar-header">
<button type="button" class="navbar-toggle" ng-click="nav.toggleNav()">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">ADF Dynamic Sample</a>
</div>
<div collapse="nav.navCollapsed" class="collapse navbar-collapse">
<ul class="nav navbar-nav">
<li ng-class="nav.navClass('boards/' + item.id)" ng-repeat="item in nav.items | orderBy: title">
<a ng-href="#/boards/item.id">item.title</a>
</li>
<li>
<a style="cursor: pointer;" ng-click="nav.create()">Create</a>
</li>
</ul>
</div><!--/.nav-collapse -->
</div>
</div>
<div class="container">
<ng-view />
</div>
<!-- components -->
<script type="text/javascript" src="components/Sortable/Sortable.min.js"></script>
<script type="text/javascript" src="components/angular/angular.min.js"></script>
<script type="text/javascript" src="components/angular-route/angular-route.min.js"></script>
<script type="text/javascript" src="components/angular-bootstrap/ui-bootstrap.min.js"></script>
<script type="text/javascript" src="components/angular-bootstrap/ui-bootstrap-tpls.min.js"></script>
<script type="text/javascript" src="components/angular-dashboard-framework/dist/angular-dashboard-framework.min.js"></script>
<!-- scripts -->
<script type="text/javascript" src="scripts/app.js"></script>
<!-- structures -->
<script type="text/javascript" src="components/adf-structures-base/dist/adf-structures-base.min.js"></script>
<!-- clock -->
<script type="text/javascript" src="components/moment/min/moment.min.js"></script>
<script type="text/javascript" src="components/adf-widget-clock/dist/adf-widget-clock.min.js"></script>
<!-- github -->
<script type="text/javascript" src="components/highcharts/adapters/standalone-framework.js"></script>
<script type="text/javascript" src="components/highcharts/highcharts.js"></script>
<script type="text/javascript" src="components/highcharts-ng/dist/highcharts-ng.js"></script>
<script type="text/javascript" src="components/adf-widget-github/dist/adf-widget-github.min.js"></script>
<!-- iframe -->
<script type="text/javascript" src="components/adf-widget-iframe/dist/adf-widget-iframe.min.js"></script>
<!-- linklist -->
<script type="text/javascript" src="components/adf-widget-linklist/dist/adf-widget-linklist.min.js"></script>
<!-- markdown -->
<script type="text/javascript" src="components/showdown/compressed/Showdown.min.js"></script>
<script type="text/javascript" src="components/angular-markdown-directive/markdown.js"></script>
<script type="text/javascript" src="components/adf-widget-markdown/dist/adf-widget-markdown.min.js"></script>
<!-- news -->
<script type="text/javascript" src="components/adf-widget-news/dist/adf-widget-news.min.js"></script>
<!-- randommsg -->
<script type="text/javascript" src="components/adf-widget-randommsg/dist/adf-widget-randommsg.min.js"></script>
<!-- version -->
<script type="text/javascript" src="components/adf-widget-version/dist/adf-widget-version.min.js"></script>
<!-- weather -->
<script type="text/javascript" src="components/adf-widget-weather/dist/adf-widget-weather.min.js"></script>
</body>
</html>
它是我参考的仪表板 GUI， 我正在使用此仪表板示例
https://github.com/angular-dashboard-framework/adf-dynamic-example
【问题讨论】：
【参考方案1】：如果我正确理解了问题，我们会在添加新的iframe 时尝试传递当前页面的 URL。
如果以上是真的，这是我的解决方案：
将$location注入控制器
获取当前页面的绝对路径：$location.$$absUrl
在$templateCache 中使用绝对路径值
您既可以使用 URL 字符串作为输入的占位符，也可以作为输入值。如果它用作输入值，iframe 会立即创建，因为按照原始设计它应该为 null
在 GUI 中，它看起来像这样：
adf-widget-iframe.js的内容：
(function(window, undefined) 'use strict';
angular.module('adf.widget.iframe', ['adf.provider'])
.config(["dashboardProvider", function(dashboardProvider)
dashboardProvider
.widget('iframe',
title: 'iframe',
description: 'Embed an external page into the dashboard',
templateUrl: 'widgetsPath/iframe/src/view.html',
controller: 'iframeController',
controllerAs: 'iframe',
edit:
templateUrl: 'widgetsPath/iframe/src/edit.html'
,
config:
height: '420px'
);
])
.controller('iframeController', ["$sce", "config", "$location", function($sce, config, $location)
config.placeholder = $location.$$absUrl;
if (config.url)
this.url = $sce.trustAsResourceUrl(config.url);
]);
angular.module("adf.widget.iframe").run(["$templateCache", function($templateCache) $templateCache.put("widgetsPath/iframe/src/edit.html","<form role=form><div class=form-group><label for=url>URL</label> <input type=url class=form-control id=url ng-model=config.url placeholder=config.placeholder></div><div class=form-group><label for=url>Height</label> <input type=text class=form-control id=url ng-model=config.height></div></form>");
$templateCache.put("widgetsPath/iframe/src/view.html","<div><div class=\"alert alert-info\" ng-if=!config.url>Please insert a url in the widget configuration</div><iframe ng-if=iframe.url class=adf-iframe style=\"height: config.height\" src=iframe.url></iframe></div>");]);)(window);
不要忘记将未缩小的文件实际导入 index.html：
<!-- iframe -->
<script type="text/javascript" src="components/adf-widget-iframe/dist/adf-widget-iframe.js"></script>
【讨论】：
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