Javascript 使用 angularJS 从 JSON url 获取数据
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Getting data from JSON url using angularJS
提问by Prajoth
I am really new to using AngularJS and Javascript. I need to get the totalResultsdata from a JSON source that looks like this:
我对使用 AngularJS 和 Javascript 真的很陌生。我需要从如下所示的 JSON 源中获取totalResults数据：
{
"queries": {
"request": [
{
"totalResults": "51"
}
]
}
}
Once I get the data, I need it to show up in a list using AngularJS. I have tried really hard using .ajax and .getJSON, but I am unable to get either of them to work, given my complete lack of knowledge on using JavaScript. I really appreciate your help! My AngularJS looks like this:
获得数据后，我需要使用 AngularJS 将其显示在列表中。我已经非常努力地使用 .ajax 和 .getJSON，但我无法让它们中的任何一个工作，因为我完全缺乏使用 JavaScript 的知识。我真的很感谢你的帮助！我的 AngularJS 看起来像这样：
function MyController($scope){
$scope.url = "https://www.googleapis.com/customsearch/v1?key=[MYKEY]&cx=[MYSECRETKEY]&q=flowers&alt=json&fields=queries(request(totalResults))";
$scope.newMessage = "";
$scope.messages = ["Steve Jobs - 515,000,000 results"];
$scope.add = function(){
$scope.messages.push($scope.newMessage);
};
}
}
In the HTML part, I have this:
在 HTML 部分，我有这个：
<input type="text" ng-model="newMessage">
<input type="submit" ng-click="add()" value="Click to find out!">
When the user clicks the button, I want the url to be called and the $scope.newMessageshould be the value in totalResults. Thanks for your help!
当用户单击按钮时，我希望调用 url 并且$scope.newMessage应该是 totalResults 中的值。谢谢你的帮助！
回答by Valentyn Shybanov
You can use $httpservice: Documentation
您可以使用$http服务：文档
So you can:
这样你就可以：
$scope.add = function(){
$http.get($scope.url).then(function(response) {
$scope.newMessage = response.data.queries.request.totalResults;
$scope.messages.push($scope.newMessage);
});
};
回答by Arshabh Agarwal
Read a little in $http service provided by AngularJS
阅读 AngularJS 提供的 $http 服务
here is the hint to the code that you would use
这是您将使用的代码的提示
$scope.add = function(){
$http.get(url).then(function(response){
queries = response.queries;
$scope.newMessage = queries.request.totalResults;
})
}
回答by Qu?nh MSO
See http://plnkr.co/edit/nZkYsxLHLvf3SZNiJKic?p=info
见http://plnkr.co/edit/nZkYsxLHLvf3SZNiJKic?p=info
Following your link, I just found one error:
按照您的链接，我刚刚发现一个错误：
var x = searchResults.split('.');
don't have function split() if i replace: x = "abc"
如果我替换，则没有函数 split()：x = "abc"
the result : Steve Jobs - 515,000,000 results - a.b results dsgdfg - a.b results
结果：史蒂夫乔布斯 - 515,000,000 个结果 - ab 结果 dsgdfg - ab 结果
