AngularJS中的ng-bind,ng-bind-html,ng-bind-html-unsafe之间的区别?

时间:2015-02-19 05:28:46

标签: javascript angularjs ng-bind-html ng-bind

我想知道ng-bindng-bind-htmlng-bind-html-unsafe之间的区别。

此外,当我在代码下面运行时,我收到的错误如下所述:

代码:

 <%@ page language="java" contentType="text/html; charset=ISO-8859-1"
        pageEncoding="ISO-8859-1"%>
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>HTML Injection Security in AngularJS</title>

<script type="text/javascript" src="/js/angular.js"></script>

<script type="text/javascript">

angular.module("myApp", []).controller("myController",function($scope)
{
    $scope.getValue = function()
    {
        return "<b>Hello World</b>";
    };
});

</script>

</head>
<body>

<div ng-app="myApp" ng-controller="myController">
    <span ng-bind-html="getValue();"></span>
    <span>Normal Text</span>
</div>

</body>
</html>

错误:

  

错误:[$ sce:unsafe]试图在安全的上下文中使用不安全的值。       http://errors.angularjs.org/1.3.11/ $ SCE /不安全           在REGEX_STRING_REGEXP(https://www.angularapprj.com:4443/js/angular.js:63:12)           在htmlSanitizer(https://www.angularapprj.com:4443/js/angular.js:15053:13)           at getTrusted(https://www.angularapprj.com:4443/js/angular.js:15217:16)           at Object。$ get.sce。(匿名函数)[as getTrustedHtml](https://www.angularapprj.com:4443/js/angular.js:15897:16)           at Object.ngBindHtmlWatchAction [as fn](​​https://www.angularapprj.com:4443/js/angular.js:20449:29)           在Scope。$ get.Scope。$ digest(https://www.angularapprj.com:4443/js/angular.js:14230:29)           在Scope。$ get.Scope。$ apply(https://www.angularapprj.com:4443/js/angular.js:14493:24)           at bootstrapApply(https://www.angularapprj.com:4443/js/angular.js:1449:15)           at Object.invoke(https://www.angularapprj.com:4443/js/angular.js:4182:17)           at doBootstrap(https://www.angularapprj.com:4443/js/angular.js:1447:14

这是什么意思?我知道在命令式代码中使用声明性代码并不是一种好的做法,尽管我只是在<b>Hello World</b>指令中使用ng-bind-html

1 个答案:

答案 0 :(得分:2)

搜索后,我从https://docs.angularjs.org/guide/migration#ngbindhtmlunsafe-has-been-removed-and-replaced-by-ngbindhtml得到以下信息:在Angular 1.3版中,他们已经从ng-bind-html-unsafe迁移到ng-bind-html,虽然还有一个问题,为什么我会得到帖子中提到的错误?

enter image description here