我在应用程序中使用Retrofit从服务器下载一些JSON。但是有时候,当我从服务器请求重复数据时,它会返回带有空主体的响应代码208。但是在200中,我有一个不为空的响应主体。
在空主体中,改型使用onFailure方法。我的问题在这里!
我想知道请求失败的原因(这是因为208(就我而言)或其他原因)。如何在OnFailure方法中获取响应代码?
我试图实现自己的callBack方法,如下所示:
public class DefaultCallback<T> implements Callback<T> {
private static final String TAG = "LOGO_SendReport";
private Callback<T> callback;
public DefaultCallback(Callback<T> callback) {
this.callback = callback;
}
@Override
public void onResponse(Call<T> call, Response<T> response) {
if (response.body() == null) {
callback.onFailure(call, new NullPointerException("Empty response"));
Log.e(TAG, "Response code is: " + response.code());
} else {
callback.onResponse(call, response);
}
}
@Override
public void onFailure(Call<T> call, Throwable t) {
Log.e(TAG, t.toString());
callback.onFailure(call, t);
}
}
这是我的电话:
@POST("office/report")
Call<ResponseSendReport> sendReport(@Body SendReport pendingList);
这是我的最终方法:
final APIService service = ServiceGenerator.createService(APIService.class, App.Auth);
Call<ResponseSendReport> call = service.sendReport(sendReport);
call.enqueue(new Callback<ResponseSendReport>() {
@Override
public void onResponse(Call<ResponseSendReport> call, Response<ResponseSendReport> response) {
Log.i("LOGO_SendReport", "code is: " + response.code());
if (response.code() == 200) {
}
@Override
public void onFailure(Call<ResponseSendReport> call, Throwable t) {
/*When Response code is 208 Goes here and I want to get
response code
if it is 208 to handle it! */
}
});
谢谢您的帮助。
最佳答案
您可以创建抽象类并处理案例。
public abstract class DefaultCallback<T> implements Callback<T> {
@SuppressWarnings({"ConstantConditions", "unchecked"})
@Override public void onResponse(@NonNull Call<T> call, Response<T> response) {
if (response.isSuccessful()) {
onSuccess(response.body(), response.code());
} else {
onError(response.errorBody(), response.code());
}
}
@Override public void onFailure(@NonNull Call<T> call, @NonNull Throwable throwable) {
onError(null, -1);
}
public abstract void onSuccess(@NonNull final T response, int code);
public abstract void onError(@Nullable ResponseBody body, int code);
}
关于android - 如何通过改造创建新的CallBack,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/46805320/