如何从Json结果中获取值

Question

This is the json result I get from my controller

{"data":"Sunday"}

The data can say any day of the week (Sunday, Monday, etc...)

On success I want to do this in ajax call

success: function(Response){
        var myresponse = Response.data;
        alert(myresponse);
}

However, it gives me undefined.

Answer 1

If you are sure that you are getting a JSON response from the server, you can make use of the Ext.JSON class to decode the JSON.

You can use the decode() method to convert a string to an object. Then you should be able to easily access it.

Example:

var jsonObject = Ext.JSON.decode(Response.responseText);
var myData = jsonObjet.data; 

Answer 2

如果您使用jQuery加载此字符串，您可以使用$ .getJSON ，它将自动解析字符串并将对象作为返回值传递给“success”函数。

Answer 3

try to use a

console.log(Response);

to check the content of Response

Answer 4

It might be considering your response to be a string. I would do something like this:

success: function(Response){
        alert(typeof Response);
        var myresponse = Response.data;
        alert(myresponse);
}

If it tells you that Response is string, you need to make sure that your framework knows you are getting back JSON. For instance with jquery it might be $.getJSON().