为什么要用sce？ 因为AngularJS里好些地方，比如路径默认是个字符串，不会认为是路径，从而访问不到我们需要的东西，那么我们就可以通过sce告诉angualrJS这个路径，这样是安全的。它有以下几种：
所谓sce即“Strict Contextual Escaping”的缩写。翻译成中文就是“严格的上下文模式”也可以理解为安全绑定。
$sce.trustAs(
type,name);
$sce.trustAsUrl(value);
$sce.trustAsHtml(value);
$sce.trustAsResourceUrl(value);
$sce.trustAsJs(value);
1.trustAsResourceUrl
<html>
<head>
<meta charset="utf-8">
<script src="http://sandbox.runjs.cn/uploads/rs/376/pbcx3e1z/angular.min.js"></script>
</head>
<body>
<div ng-app="myApp" ng-controller="myCtrl">
无$sce处理：
<audio ng-src="{{formData.mediaUrl}}" controls="controls">您的浏览器不支持html5</audio>
<br/>
链接为：
{{formData.mediaUrl}}
<br/><br/>
有$sce处理：
第一种方式：$sce.trustAsResourceUrl;<br/>
<audio ng-src="{{sceControl(formData.mediaUrl)}}" controls="controls">您的浏览器不支持html5</audio>
<br/>
链接为：
{{sceControl(formData.mediaUrl)}}
<br/><br/><br/>
第二种方式：$sce.trustAsResourceUrl(url);<br/>
<audio ng-src="{{data.url}}" controls="controls">您的浏览器不支持html5</audio>
<br>
链接为：
{{data.url}}
</div>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function ($scope, $sce) {
$scope.formData = {
"name": "视频",
"mediaUrl": "http://nongjibao.189.cn:8089/njb-mobile/fileuploadService/loadImgDataByFileName.do?fileName=c4707f62-51f4-4e95-a887-b491443d2e74_201703061150285028.mp3"
};
$scope.sceControl = $sce.trustAsResourceUrl;
$scope.data = {
"name": "视频",
"url": "http://nongjibao.189.cn:8089/njb-mobile/fileuploadService/loadImgDataByFileName.do?fileName=c4707f62-51f4-4e95-a887-b491443d2e74_201703061150285028.mp3"
};
$scope.data.url = $sce.trustAsResourceUrl($scope.data.url);
});
</script>
</body>
</html>
2.trustAsHtml
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="http://sandbox.runjs.cn/uploads/rs/376/pbcx3e1z/angular.min.js"></script>
</head>
<body>
<div ng-app="myApp" ng-controller="myCtrl">
未处理的：
<div ng-repeat="item in formData">
{{item.name}} :{{item.htmlVal}}
</div>
<br/>处理过的：
<button ng-click="look()">查看处理结果</button>
<div ng-repeat="item in data">
{{item.name}} :<p ng-bind-html="item.htmlVal"></p>
</div>
</div>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function ($scope, $sce) {
$scope.formData = [
{"name": "张春玲", "htmlVal": "我是<span style='color:red;'>张春玲<span>"},
{"name": "sb", "htmlVal": "我是<span style='color:red;'>sb<span>"}
];
$scope.look = function () {
alert
$scope.data = [
{"name": "张春玲", "htmlVal": "我是<span style='color:red;'>张春玲<span>"},
{"name": "sb", "htmlVal": "我是<span style='color:red;'>sb<span>"}
];
for (var i = 0; i < $scope.data.length; i++) {
$scope.data[i].htmlVal = $sce.trustAsHtml($scope.data[i].htmlVal);
}
};
});
</script>
</body>
</html>
参考：
深究AngularJS——$sce的使用
AngularJs
sce和
sceDelegate 上下文转义
转载请注明原文地址: https://ju.6miu.com/read-38002.html
