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Error while parsing JSON Object in Android(在Android中解析JSON对象时出错)

转载 作者:bug小助手 更新时间:2023-10-28 10:32:05 29 4
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In my Android application, I want to fetch the details of the user's profile using the token that is sent in the header format, but I get the following errors

在我的Android应用程序中,我想使用以头文件格式发送的令牌来获取用户配置文件的详细信息,但我得到了以下错误


Specify the JSON Parsing Error:

指定JSON解析错误:


java.io.EOFException: End of input at line 1 column 1 path $ at com.google.gson.stream.JsonReader.nextNonWhite space(JsonReaderjaval 406) at com.google.gson.stream.JsonReader.consumeNonE xecutePrefix(JsonReaderjaval 615) at com.google.gson.stream.JsonReader.doPeek(JsonR eader.java.544) at com.google.gson.stream.JsonReader. peek(JsonRea derjava:435) at com.google.gson.internal.bind.ReflectiveTypeAdapt erFactory$Adapter.read(ReflectiveTypeAdapterFacto ry.java:251) at retrofit2.converter.gson.GsonResponseBodyConvert er.convert(GsonResponseBodyConverter.java:40) at retrofit2.convertergson.GsonResponseBodyConvert er. convert(GsonResponseBodyConverter.java:27) at retrofit2.OkHttpCall.parseResponse(OkHttpCall.java: 243) at retrofit.2.0 kHttpCall$1.onResponse(OkHttpCall.java: 153) at okhttp3.internal.connection.RealCall$AsyncCall.run( RealCall.kt:519) at java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1137) at lava i itil rnnr•I irrpnt ThrparlPnnIFvpri rtnrW/nrkpr n in( 


com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was BEGIN_ARRAY at line 1 column 2 path $ at com.google.gson.internal.bind.ReflectiveTypeAdapt erFactory$Adapter.read(ReflectiveTypeAdapterFacto ry.java:270) at retrofit2.converter.gson.GsonResponseBodyConvert erconvert(GsonResponseBodyConverterjava:40) at retrofit2.converter.gson.GsonResponseBodyConvert erconvert(GsonResponseBodyConverterjava:27) at retrofit2.OkHttpCall.parseResponse(OkHttpCall.java: 243) at retrofit2.0kHttpCall$1.onResponse(OkHttpCall.java: 153) at okhttp3.internal.connection.RealCall$AsyncCall.run( RealCall.kt:519) at java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1137) at java.util.concurrent.ThreadPoolExecutor$Worker.run( ThreadPoolExecutor.java:637) at java.lang.Thread.run(Thread.javal 012) Suppressed: kotlinx.coroutines. DiagnosticCoroutineContextExcep tion: [StandaloneCoroutine{Cancelling}@acd6dc7, Dispatchers.Mainimmediate] Caused by: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was BEGIN_ARRAY at line 1 column 2 path $ 
at

Network Module

@Provides
@Singleton
fun provideInterceptor() = HttpLoggingInterceptor().apply {
level =
if (BuildConfig.DEBUG) HttpLoggingInterceptor.Level.BODY else HttpLoggingInterceptor.Level.NONE
}

@Provides
@Singleton
fun provideClient(
timeOut: Long,
@Named(NAMED_PING) ping: Long,
session: SessionManager,
interceptor: HttpLoggingInterceptor
) = OkHttpClient.Builder()
.addInterceptor { chain ->
val token = runBlocking {
session.getToken.first().toString()
}
chain.proceed(chain.request().newBuilder().also {
it.addHeader(AUTHORIZATION, "$token")
it.addHeader(ACCEPT, APPLICATION_JSON)
}.build())

}.also { client ->
client.addInterceptor(interceptor)
}
.writeTimeout(timeOut, TimeUnit.SECONDS)
.readTimeout(timeOut, TimeUnit.SECONDS)
.connectTimeout(timeOut, TimeUnit.SECONDS)
.retryOnConnectionFailure(true)
.pingInterval(ping, TimeUnit.SECONDS)
.build()

@Provides
@Singleton
fun provideRetrofit(baseUrl: String, gson: Gson, client: OkHttpClient): ApiServices =
Retrofit.Builder()
.baseUrl(baseUrl)
.client(client)
.addConverterFactory(GsonConverterFactory.create(gson))
.build()
.create(ApiServices::class.java)

}

}



ApiService

ApiService


    @GET("profile/show_profile.php")
suspend fun getInfoUser(): Response<ResponseInfoUser>


ResponseInfoUser

响应信息用户


import com.google.gson.annotations.SerializedName

data class ResponseInfoUser(
@field:SerializedName("date")
val date: String?, // 2023-09-02
@field:SerializedName("email")
val email: String?, //
@field:SerializedName("image")
val image: String?, //
@field:SerializedName("name_family")
val nameFamily: String? // mahdi
)

I also wrote in this way

我也是这样写的


data class ResponseInfoUser(
@SerializedName("date")
val date: String?, // 2023-09-02
@SerializedName("email")
val email: String?, //
@SerializedName("image")
val image: String?, //
@SerializedName("name_family")
val nameFamily: String? // mahdi
)

HomeRepository

家庭存储库


class HomeRepository @Inject constructor(private val api: ApiServices) {
suspend fun getInfoUser() = api.getInfoUser()
}

MviHomeIntent

MviHomeIntent


sealed class HomeIntent {
object ShowInfoUser :HomeIntent()
}


HomeState

HomeState


sealed class HomeState {
object Idle : HomeState()
object LoadingProfile : HomeState()
data class ShowInfoUser(val profile: ResponseInfoUser) : HomeState()
object Empty : HomeState()
data class Error(val error: String) : HomeState()
}


HomeViewModel

HomeViewModel


@HiltViewModel
class HomeViewModel @Inject constructor(private val repository: HomeRepository) : ViewModel() {
//Login
val intentChannel = Channel<HomeIntent>()
private val _state = MutableStateFlow<HomeState>(HomeState.Idle)
val state: StateFlow<HomeState> get() = _state

init {
handleIntents()
}

private fun handleIntents() = viewModelScope.launch {
intentChannel.consumeAsFlow().collect { intent ->
when (intent) {
is HomeIntent.ShowInfoUser -> fetchingProfileUser()
}
}
}


private fun fetchingProfileUser() = viewModelScope.launch {
val response = repository.getInfoUser()
_state.emit(HomeState.LoadingProfile)
when (response.code()) {
in 200..202 -> {
_state.emit(HomeState.ShowInfoUser(response.body()!!))
}

in 400..499 -> {
_state.emit(HomeState.Error(""))
}

in 500..599 -> {
_state.emit(HomeState.Error(""))
}
}

}




}

BackEnd PHP

后端PHP


<?php
header("Access-Control-Allow-Origin: *");
header("Content-Type: application/json; charset=UTF-8");
if ($_SERVER['REQUEST_METHOD'] === 'POST') {

require '../connection.php';

$rawToken = $_SERVER['HTTP_AUTHORIZATION'];
$token = preg_replace('/Bearer\s+|\[|\]/i', '', $rawToken);


$sql="SELECT * FROM tbl_subscribers WHERE token= :token";

$resault=$connect->prepare($sql);
$resault->bindParam(':token', $token);
$resault->execute();

while($row=$resault->fetch(PDO::FETCH_ASSOC)){

$record["name_family"]=$row['name_family'];
$record["email"]=$row['email'];
$record["date"]=$row['date'];
$record["image"]=$row['image'];

}
echo JSON_encode($record);

}
?>


call Postman Api Response

呼叫邮递员Api响应


I also changed the received response for the data class, but the error was not fixed

我还更改了数据类的接收响应,但错误并未修复



data class ResponseInfoUser(
@SerializedName("date")
val date: String, // 2023-08-27
@SerializedName("email")
val email: String, //
@SerializedName("image")
val image: String, // http
@SerializedName("name_family")
val nameFamily: String // dggf
)

更多回答

Handle the exception and log the JSON you're getting

处理异常并记录您得到的JSON

How should I do this?

我该怎么做呢?

Your error is sort of self-explanatory: Expected BEGIN_OBJECT but was BEGIN_ARRAY at line 1 column 2 path. You expect a JSON object (i.e. {...}), but actually you receive a List of JSON objects (i.e. [...])

您的错误是不言而喻的:应该是BEGIN_OBJECT,但在第1行第2列路径上是Begin_ARRAY。您期望的是JSON对象(即{...}),但实际上您收到的是JSON对象的列表(即[...])

Thank you. Is the error related to api? Is there no way to solve the problem in Android?

谢谢。该错误是否与接口相关?有没有办法在安卓系统中解决这个问题?

@Noah; you can solve this by either adjusting your PHP code, or the Android app code. The cause for the EOFException is probably that your PHP code produces an empty response when no matching record is found. It should either produce valid JSON (e.g. null) or send HTTP 4... to indicate an error. For Expected BEGIN_OBJECT but was BEGIN_ARRAY as jujka pointed out, the JSON structure is incorrect. Please verify that your PHP code really always responds with a JSON object { ... }.

@noah;您可以通过调整您的PHP代码或Android应用程序代码来解决这个问题。EOFException的原因可能是,当没有找到匹配的记录时,您的PHP代码会生成一个空响应。它应该生成有效的JSON(例如NULL)或发送HTTP4...表示有错误。对于预期的BEGIN_OBJECT,但正如jujka指出的那样是Begin_ARRAY,JSON结构是不正确的。请验证您的PHP代码是否真的总是使用JSON对象{...}进行响应。

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