[英]Json deserialization - expected BEGIN_OBJECT but was STRING
This is the json I receive: 这是我收到的json:
{
"data": "{\"keystring\": \"ag5zfmNvcGFya3NlcnZlcnIUCxIHQ29tbWVudBiAgICAusaBCgw\"}",
"isSucceed": true,
"error": ""
}
And this is the class and the code which is supposed to de-serialize it: 这是应该反序列化的类和代码:
public class ServerResponse {
private boolean isSucceed;
private String error;
private JSONObject data;
}
//this is the code line responsible for deserialization, responseJson = the JSON above
ServerResponse response = gson.fromJson(responseJson, ServerResponse.class);
For some reason I get JsonSyntaxException: expected BEGIN_OBJECT but was STRING, which I guess is related to the data object ServerResponse holds, but I recieve it as a valid Json... 由于某种原因,我得到了JsonSyntaxException:预期为BEGIN_OBJECT,但为STRING,我猜这与ServerResponse持有的数据对象有关,但我将其作为有效的Json接收到。
Any ideas? 有任何想法吗?
Your data
field 您的
data
字段
private JSONObject data;
is of type JSONObject
. 类型为
JSONObject
。 But the value you receive for the corresponding key-value pair 但是您收到的对应键值对的值
"data": "{\"keystring\": \"ag5zfmNvcGFya3NlcnZlcnIUCxIHQ29tbWVudBiAgICAusaBCgw\"}",
is a JSON string. 是JSON字符串。 A JSON string is meant to map to a Java
String
. JSON字符串用于映射到Java
String
。 So it expected a JSON object, but received a JSON String. 因此,它期望使用JSON对象,但收到JSON字符串。
You can write and register your own TypeAdapter
to make the conversion from JSON string to Java JSONObject
. 您可以编写和注册自己的
TypeAdapter
来进行从JSON字符串到Java JSONObject
的转换。 Or you can change your field to be of type String
and convert it to a JSONObject
when you need it. 或者,您可以将字段更改为
String
类型,并在需要时将其转换为JSONObject
。
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