Android 改装2.0-如何获得400错误请求的响应正文?
因此,当我对我的服务器进行POST API调用时,JSON响应会出现400个错误请求Android 改装2.0-如何获得400错误请求的响应正文?,android,retrofit,Android,Retrofit,因此,当我对我的服务器进行POST API调用时,JSON响应会出现400个错误请求 { "userMessage": "Blah", "internalMessage": "Bad Request blah blah", "errorCode": 1 } 我打电话给你 Call.enqueue(new Callback<ResponseBody>() { @Override public void onResponse(Call<Re
{
"userMessage": "Blah",
"internalMessage": "Bad Request blah blah",
"errorCode": 1
}
我打电话给你
Call.enqueue(new Callback<ResponseBody>() {
@Override
public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
//AA
}
@Override
public void onFailure(Call<ResponseBody> call, Throwable t) {
//BB
}
}
Call.enqueue(新回调(){
@凌驾
公共void onResponse(调用、响应){
//AA
}
@凌驾
失败时公共无效(调用调用,可丢弃的t){
//BB
}
}
但是问题是,一旦我得到响应,onFailure()将被调用,以便调用//BB。在这里,我无法访问JSON响应。
当我记录api请求和响应时,它根本不显示JSON响应。Throwable t是IOException。然而,奇怪的是,当我对Postman进行相同的调用时,它确实返回了预期的JSON响应,并返回了400个错误代码
所以我的问题是,当我收到400个错误的请求错误时,如何获得json响应?我是否应该向okhttpclient添加一些内容
谢谢您可以在
onResponse
方法中完成,请记住400是一种响应状态,而不是错误:
if (response.code() == 400) {
Log.v("Error code 400",response.errorBody().string());
}
您可以使用Gson
处理除200-300以外的任何响应代码,如下所示:
if (response.code() == 400) {
Gson gson = new GsonBuilder().create();
ErrorPojoClass mError=new ErrorPojoClass();
try {
mError= gson.fromJson(response.errorBody().string(),ErrorPojoClass.class);
Toast.makeText(context, mError.getDescription(), Toast.LENGTH_LONG).show();
} catch (IOException e) {
// handle failure to read error
}
}
将此添加到您的build.gradle
:编译'com.google.code.gson:gson:2.7'
如果您想创建
Pojo
类,请转到并粘贴您的示例Json
响应。选择源类型Json和注释Gson,我遇到了类似的问题,但现有代码仍然坚持使用RxJava 2链。
以下是我的解决方案:
public static <T> Observable<T> rxified(final Call<T> request, final Class<T> klazz) {
return Observable.create(new ObservableOnSubscribe<T>() {
AtomicBoolean justDisposed = new AtomicBoolean(false);
@Override
public void subscribe(final ObservableEmitter<T> emitter) throws Exception {
emitter.setDisposable(new Disposable() {
@Override
public void dispose() {
request.cancel();
justDisposed.set(true);
}
@Override
public boolean isDisposed() {
return justDisposed.get();
}
});
if (!emitter.isDisposed())
request.enqueue(new Callback<T>() {
@Override
public void onResponse(Call<T> call, retrofit2.Response<T> response) {
if (!emitter.isDisposed()) {
if (response.isSuccessful()) {
emitter.onNext(response.body());
emitter.onComplete();
} else {
Gson gson = new Gson();
try {
T errorResponse = gson.fromJson(response.errorBody().string(), klazz);
emitter.onNext(errorResponse);
emitter.onComplete();
} catch (IOException e) {
emitter.onError(e);
}
}
}
}
@Override
public void onFailure(Call<T> call, Throwable t) {
if (!emitter.isDisposed()) emitter.onError(t);
}
});
}
});
}
publicstaticobserveable rxified(最终调用请求,最终类klazz){
返回Observable.create(newobservableOnSubscribe(){
AtomicBoolean=new AtomicBoolean(false);
@凌驾
public void subscribe(最终ObservieMitter发射器)引发异常{
emitter.setDispossible(新的Dispossible(){
@凌驾
公共空间处置(){
request.cancel();
justDisposed.set(true);
}
@凌驾
公共布尔值isDisposed(){
返回justDisposed.get();
}
});
如果(!emitter.isDisposed())
request.enqueue(新回调(){
@凌驾
公共void onResponse(呼叫,改装2.响应){
如果(!emitter.isDisposed()){
if(response.issusccessful()){
emitter.onNext(response.body());
emitter.onComplete();
}否则{
Gson Gson=新的Gson();
试一试{
T errorResponse=gson.fromJson(response.errorBody().string(),klazz);
发射器.onNext(错误响应);
emitter.onComplete();
}捕获(IOE异常){
发射体。onError(e);
}
}
}
}
@凌驾
失败时公共无效(调用调用,可丢弃的t){
如果(!emitter.isDisposed())emitter.onError(t);
}
});
}
});
}
将400个类似的响应转换为rx链非常简单:
Call<Cat> request = catApi.getCat();
rxified(request, Cat.class).subscribe( (cat) -> println(cat) );
callrequest=catApi.getCat();
rxified(请求,Cat.class).subscribe((Cat)->println(Cat));
您可以尝试以下代码以获得400响应。您可以从errorBody()方法获得错误响应
Call.enqueue(新回调(){
@凌驾
公共void onResponse(调用、响应){
//在此处获取成功和错误响应
if(response.code()==400){
如果(!response.issusccessful()){
JSONObject JSONObject=null;
试一试{
jsonObject=newJSONObject(response.errorBody().string());
stringusermessage=jsonObject.getString(“userMessage”);
String internalMessage=jsonObject.getString(“internalMessage”);
String errorCode=jsonObject.getString(“errorCode”);
}捕获(JSONException e){
e、 printStackTrace();
}
}
}
@凌驾
失败时公共无效(调用调用,可丢弃的t){
//在这里获取失败响应
}
}
}
编辑:将方法名称从
toString
固定到string
这是处理响应消息的方式
我正在处理错误500,您可以添加任意数量
switch (response.code()) {
case HttpURLConnection.HTTP_OK:
break;
case HttpURLConnection.HTTP_UNAUTHORIZED:
callback.onUnAuthentic();
break;
case HttpURLConnection.HTTP_INTERNAL_ERROR:
try {
String errorResponse = response.errorBody().string();
JSONObject object = new JSONObject(errorResponse);
String message = "Error";
if (object.has("Message"))
message = String.valueOf(object.get("Message"));
callback.onError(message);
} catch (IOException e) {
e.printStackTrace();
}
break;
case HttpURLConnection.HTTP_GATEWAY_TIMEOUT:
case HttpURLConnection.HTTP_CLIENT_TIMEOUT:
default:
callback.onNetworkError();
break;
}
第一步: 为错误响应创建POJO类。在我的例子中,
apierro.java
public class ApiError {
@SerializedName("errorMessage")
@Expose
private String errorMessage;
public String getErrorMessage() {
return errorMessage;
}
public void setErrorMessage(String errorMessage) {
this.errorMessage= errorMessage;
}
}
第二步:
在api回调中编写以下代码
Call.enqueue(new Callback<RegistrationResponse>() {
@Override
public void onResponse(Call<RegistrationResponse> call, Response<RegistrationResponse> response)
{
if (response.isSuccessful()) {
// do your code here
} else if (response.code() == 400) {
Converter<ResponseBody, ApiError> converter =
ApiClient.retrofit.responseBodyConverter(ApiError.class, new Annotation[0]);
ApiError error;
try {
error = converter.convert(response.errorBody());
Log.e("error message", error.getErrorMessage());
Toast.makeText(context, error.getErrorMessage(), Toast.LENGTH_LONG).show();
} catch (IOException e) {
e.printStackTrace();
}
}
}
@Override
public void onFailure(Call<RegistrationResponse> call, Throwable t) {
//do your failure handling code here
}
}
Call.enqueue(新回调(){
@凌驾
公共void onResponse(调用、响应)
{
if(response.issusccessful()){
//请在这里输入您的代码
}else if(response.code()==400){
转换器=
ApiClient.Reformation.responseBodyConverter(apierr.class,新注释[0]);
误差;
试一试{
error=converter.convert(response.errorBody());
Log.e(“错误消息”,error.getErrorMessage());
Toast.makeText(上下文,error.getErrorMessage(),Toast.LENGTH_LONG.show();
}捕获(IOE异常){
e、 printStackTrace();
}
}
}
@凌驾
失败时公共无效(调用调用,Throwa
Call.enqueue(new Callback<RegistrationResponse>() {
@Override
public void onResponse(Call<RegistrationResponse> call, Response<RegistrationResponse> response)
{
if (response.isSuccessful()) {
// do your code here
} else if (response.code() == 400) {
Converter<ResponseBody, ApiError> converter =
ApiClient.retrofit.responseBodyConverter(ApiError.class, new Annotation[0]);
ApiError error;
try {
error = converter.convert(response.errorBody());
Log.e("error message", error.getErrorMessage());
Toast.makeText(context, error.getErrorMessage(), Toast.LENGTH_LONG).show();
} catch (IOException e) {
e.printStackTrace();
}
}
}
@Override
public void onFailure(Call<RegistrationResponse> call, Throwable t) {
//do your failure handling code here
}
}
public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
DialogHelper.dismiss();
if (response.isSuccessful()) {
// Success
} else {
try {
JSONObject jObjError = new JSONObject(response.errorBody().string());
Toast.makeText(getContext(), jObjError.getString("message"), Toast.LENGTH_LONG).show();
} catch (Exception e) {
Toast.makeText(getContext(), e.getMessage(), Toast.LENGTH_LONG).show();
}
}
}
@Override
public void onFailure(Call<T> call, Throwable t) {
HttpException httpException = (HttpException) t;
String errorBody = httpException.response().errorBody().string();
// use Gson to parse json to your Error handling model class
ErrorResponse errorResponse = Gson().fromJson(errorBody, ErrorResponse.class);
}
{ error ->
val httpException :HttpException = error as HttpException
val errorBody: String = httpException.response().errorBody()!!.string()
// use Gson to parse json to your Error handling model class
val errorResponse: ErrorResponse =
Gson().fromJson(errorBody, ErrorResponse::class.java)
}
val errorResponse = Gson().fromJson(response.errorBody()!!.charStream(), ErrorResponse::class.java)
ErrorResponse errorResponse = new Gson().fromJson(response.errorBody.charStream(),ErrorResponse.class)
if (throwable is HttpException && (throwable!!.code() == 400 || throwable!!.code()==404)){
var responseBody = throwable!!.response()?.errorBody()?.string()
val jsonObject = JSONObject(responseBody!!.trim())
var message = jsonObject.getString("message")
tvValMsg.set(message)
}
@POST("api/users/CreateAccount")
Call<CreateAccount> createAccount(@Body CreateAccount model, @Header("Content-Type") String content_type);