我如何反序列化JSON对象中的数组？ [英] How can I deserialize an array inside a JSON object?

问题描述

我无法解决如何使用Gson反序列化JSON对象内的数组。我尝试反序列化的json对象如下所示：

I can't work out how to deserialize an array inside a JSON object using Gson. The json object that i'm trying to deserialize looks like this:

{"item0":3,
 "item1":1,
 "item2":3,
 "array":[
    {"arrayItem1":321779321,
     "arrayItem2":"asdfafd",
     "arrayItem3":"asasdfadf"}]}

我设法构建一个类似于：

I manage to build a class that looks like this:

public class Watchlist {
 private int itemn0;
 private int itemn1;
 private int itemn2;
 private Object array;

}

但是，当gson试图反序列化数组时，它会抛出一个异常：

But when gson tries to deserialize the array it throws an exception:

com.google.gson.JsonParseException: Type information is unavailable, and the target object is not a primitive: <my gson array>

有人可以告诉我如何反序列化这个吗？

Can someone please tell me how to deserialize this?

推荐答案

你的数组是一个数组。
所以在watchList类中

your "array" is an Array. so in watchList class

    public class Watchlist {
    private int itemn0;
    private int itemn1;
    private int itemn2;
    private List<watchListarray> array;

 //constructor
  //getter & setter of all

}

now watchListarray class
 public class watchListarray{
  String arrayItem1="";
  String arrayItem2="";
  String arrayItem3="";
//constructor 
 //getter & setters of all
}

现在使用下载Gson
参考： http://primalpop.wordpress.com/2010/06 / 05 / parsing-json-using-gson-in-android /

Now use download Gson refer: http://primalpop.wordpress.com/2010/06/05/parsing-json-using-gson-in-android/

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