我是angularJS的新手,并使用angularJS指令创建一个用于显示json数据的示例,如下所述:
<div ng-controller="myController">
<div my-attribute="String1">Hello</div>
<div my-attribute="String2">Welcome</div>
<div my-attribute="String3">AngularJS</div>
<div my-attribute="String4">AngularJS test</div>
<div my-attribute="String5">AngularJS test 123</div>
</div>
实际响应
该指令显示所有属性的最后响应json数据 .
<div ng-controller="myController" class="ng-scope">
<!-- ngRepeat: (key, resourceString) in resourceStrings --><ul ng-repeat="(key, resourceString) in resourceStrings" class="ng-scope">
<div my-attribute="String1" class="ng-binding ng-isolate-scope">AngularJS test 123</div>
</ul><!-- end ngRepeat: (key, resourceString) in resourceStrings --><ul ng-repeat="(key, resourceString) in resourceStrings" class="ng-scope">
<div my-attribute="String2" class="ng-binding ng-isolate-scope">AngularJS test 123</div>
</ul><!-- end ngRepeat: (key, resourceString) in resourceStrings --><ul ng-repeat="(key, resourceString) in resourceStrings" class="ng-scope">
<div my-attribute="String3" class="ng-binding ng-isolate-scope">AngularJS test 123</div>
</ul><!-- end ngRepeat: (key, resourceString) in resourceStrings --><ul ng-repeat="(key, resourceString) in resourceStrings" class="ng-scope">
<div my-attribute="String4" class="ng-binding ng-isolate-scope">AngularJS test 123</div>
</ul><!-- end ngRepeat: (key, resourceString) in resourceStrings --><ul ng-repeat="(key, resourceString) in resourceStrings" class="ng-scope">
<div my-attribute="String5" class="ng-binding ng-isolate-scope">AngularJS test 123</div>
</ul><!-- end ngRepeat: (key, resourceString) in resourceStrings -->
</div>
JSON响应数据
{“String1”:“Hello”,“String2”:“Welcome”,“String3”:“AngularJS”,“String4”:“AngularJS test”,“String5”:“AngularJS test 123”}
我的脚本文件
var app = angular.module('myApp',[]);
app.factory('resourceStrings', function($http) {
var promise = null;
return function() {
if (promise) {
return promise;
} else {
promise = $http.get('resource.json');
return promise;
}
}; });
app.controller('myController', function($scope, resourceStrings) {
resourceStrings().success(function(data) {
$scope.resourceStrings = data;
}); });
app.directive('myAttribute', function() {
return {
restrict: 'A',
replace: true,
template: '<div>{{displayValue}}</div>',
scope: {
myAttribute: '=resourceString'
},
controller : 'myController',
link: function(scope, element, attrs) {
scope.$watch('resourceStrings', function(resourceStrings) {
angular.forEach(resourceStrings, function(resourceString, key) {
scope.displayValue = resourceString;
});
});
}
}; });
HTML
<div ng-controller="myController">
<ul ng-repeat="(key, resourceString) in resourceStrings">
<li my-attribute={{key}}></li>
</ul>
</div>
请告诉我显示相同数据的问题是什么?如何按预期显示数据?
提前致谢 .
1 回答
我添加了一个基于密钥的plunkr,根据您的问题描述希望帮助回复该值 .
基本上我添加了一个属性源,因为$ watch无法识别数据源,请参阅示例并告诉我它是否对您有所帮助 . example - plunkr