我正在使用 Retrofit 发出返回对象数组的 HTTP 请求,但出现以下错误:
com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was BEGIN_ARRAY
返回的响应应该是这样的:
[ {key1: "value1", key2: "value2"}, {key1: "value1", key2: "value2"}, ... ]
我有以下类,用于序列化数据:
public class data {
private List<element> dataList;
public List<element> getElements() {
return dataList;
}
public class element {
@SerializedName("key1")
private String key1;
@SerializedName("key2")
private String key2;
// Getters and Setters
}
}
如果您有任何想法,请告诉我。谢谢
最佳答案
错误实际上是在我实现 Retrofit Callback 时。在这种情况下,当它应该期待一个数组时,我的实现期待一个对象。感谢大家的帮助。
之前
//*****MyData*****//
public class MyData {
private List<Data> dataList;
public List<Data> getElements() {
return dataList;
}
public class Data {
@SerializedName("key1")
private String key1;
@SerializedName("key2")
private String key2;
// Getters and Setters
}
}
//*****Callback Implementation*****//
public class MyDataCallback extends Callback {
public MyDataCallback(MyDataCallbackListener<MyData> myDataCallbackListener) {
super(myDataCallbackListener);
}
@Override
public void success(MyData data, Response response) {
if (myDataCallbackListener != null) {
myDataCallbackListener.onCallbackComplete(true, response, MyDataCallback.CALLBACK_SUCCESS_MESSAGE, data);
}
}
}
之后
//*****Data*****//
public class Data {
@SerializedName("key1")
private String key1;
@SerializedName("key2")
private String key2;
// Getters and Setters
}
//*****Callback Implementation*****//
public class MyDataCallback extends Callback {
public MyDataCallback(MyDataCallbackListener<List<Data>> myDataCallbackListener) {
super(myDataCallbackListener);
}
@Override
public void success(List<Data> data, Response response) {
if (myDataCallbackListener != null) {
myDataCallbackListener.onCallbackComplete(true, response, MyDataCallback.CALLBACK_SUCCESS_MESSAGE, data);
}
}
}
关于java - 改造将对象数组转换为 GSON 错误,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/25817604/