从Ajax响应中提取

问题描述

我有一个ajax调用，该调用返回JSON数据(已附加数据).将数据转换为String之后，它是这样的:

I have an ajax call that returns JSON data (Data Attached).After converting the data into String, this is how it looks like:

{
   "shipments":[
      {
         "companyName":"TriStar Inc.",
         "shipmentDate":null,
         "transMode":"NDAY",
         "paid":true,
         "delDate":null,
         "custRefInfo":{
            "customerName":"DAISY N.",
            "customerZip":"90544"
         },
         "orderStatus":true
      },
      {
         "companyName":"Carbo Box",
         "shipmentDate":null,
         "transMode":"COUR",
         "paid":true,
         "delDate":null,
         "custRefInfo":{
            "customerName":"TOM K",
            "customerZip":"07410"
         },
         "orderStatus":true
      }
   ]
}

现在，当我在Firefox中打印JSON响应时，它看起来像:

Now when I print the JSON response in Firefox, it looks like:

[Object { companyName="TriStar Inc.", shipmentDate=null, transMode="NDAY", more...}, Object { companyName="Carbo Box", shipmentDate=null, transMode="COUR", more... } ]

我的问题是，如何从此响应中提取companyName和customerName字段.以下无效:

My question is, how do I extract companyName and customerName field out of this response. The following isnt working:

 load: function(response){
        for(var i in response){
             console.log(response.shipments[i].companyName);
  }

推荐答案

如果获取的是json字符串，则需要先对其进行解析.

if you get a string that is json, you need to parse it first.

var obj = JSON.parse(jsonString);

现在您有了正确的对象文字，并且可以正常访问

now you have a proper object literal, and you can access it normally

var shipments = obj.shipments;

shipments现在是一个javascript数组...

shipments is now a javascript array...

for(var i = 0; i < shipments.length; i++){
    console.log(shipments[i].companyName);
}

请注意，您不应在数组上使用for(var i in x)构造.

note you should not use the for(var i in x) construct on arrays.

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