当我从服务器请求数据时，几乎情况下rxjava可以在我的rxjava链中的onError()处从okhttp3捕获超时异常，但有时onError()无法处理超时并且我的应用程序崩溃，例外情况如下：
02-05 06:27:35.432 15865-15865/com.app.example E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.app.example, PID: 15865
io.reactivex.exceptions.CompositeException: 2 exceptions occurred.
at io.reactivex.internal.observers.LambdaObserver.onError(LambdaObserver.java:80)
at io.reactivex.internal.observers.BasicFuseableObserver.onError(BasicFuseableObserver.java:100)
at io.reactivex.internal.operators.observable.ObservableDoOnEach$DoOnEachObserver.onError(ObservableDoOnEach.java:119)
at io.reactivex.internal.observers.BasicFuseableObserver.onError(BasicFuseableObserver.java:100)
at io.reactivex.internal.observers.BasicFuseableObserver.onError(BasicFuseableObserver.java:100)
at io.reactivex.internal.operators.observable.ObservableDoOnEach$DoOnEachObserver.onError(ObservableDoOnEach.java:119)
at io.reactivex.internal.operators.observable.ObservableDoOnEach$DoOnEachObserver.onError(ObservableDoOnEach.java:119)
at io.reactivex.internal.operators.observable.ObservableDoOnEach$DoOnEachObserver.onError(ObservableDoOnEach.java:119)
at io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.checkTerminated(ObservableObserveOn.java:276)
at io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.drainNormal(ObservableObserveOn.java:172)
at io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.run(ObservableObserveOn.java:252)
at io.reactivex.android.schedulers.HandlerScheduler$ScheduledRunnable.run(HandlerScheduler.java:109)
at android.os.Handler.handleCallback(Handler.java:742)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:157)
at android.app.ActivityThread.main(ActivityThread.java:5571)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:745)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:635)
ComposedException 1 :
java.net.SocketTimeoutException
at java.net.PlainSocketImpl.read(PlainSocketImpl.java:484)
at java.net.PlainSocketImpl.access$000(PlainSocketImpl.java:37)
at java.net.PlainSocketImpl$PlainSocketInputStream.read(PlainSocketImpl.java:237)
at okio.Okio$2.read(Okio.java:139)
at okio.AsyncTimeout$2.read(AsyncTimeout.java:237)
at okio.RealBufferedSource.indexOf(RealBufferedSource.java:345)
at okio.RealBufferedSource.readUtf8LineStrict(RealBufferedSource.java:217)
at okhttp3.internal.http1.Http1Codec.readHeaderLine(Http1Codec.java:212)
at okhttp3.internal.http1.Http1Codec.readResponseHeaders(Http1Codec.java:189)
at okhttp3.internal.http.CallServerInterceptor.intercept(CallServerInterceptor.java:88)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at com.facebook.stetho.okhttp3.StethoInterceptor.intercept(StethoInterceptor.java:56)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:45)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:125)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:200)
at okhttp3.RealCall.execute(RealCall.java
有些帖子建议我需要设置readTimeout()和writeTimeout()，但它并不能完全解决问题。这是我对okhttp3的配置：
@Provides
@Singleton
internal fun provideOkHttpClient(): OkHttpClient {
return OkHttpClient.Builder()
.connectTimeout(15, TimeUnit.SECONDS)
.readTimeout(15, TimeUnit.SECONDS)
.writeTimeout(15, TimeUnit.SECONDS)
.addNetworkInterceptor(StethoInterceptor())
.build()
}
改造：
@Provides
@Singleton
internal fun provideRetrofit(client: OkHttpClient): Retrofit {
return Retrofit.Builder()
.baseUrl("http://abc.xyz/")
.client(client)
.addCallAdapterFactory(RxJava2CallAdapterFactory.create())
.addConverterFactory(SimpleXmlConverterFactory.create())
.build()
}
以下是我的相关图书馆：
io.reactivex.rxjava2：rxjava：2.1.8
io.reactivex.rxjava2：rxandroid：2.0.1
com.squareup.okhttp3：okhttp：3.9.1
com.squareup.retrofit2：改型：2.3.0
com.squareup.retrofit2：转换器-simplexml的：2.3.0
com.squareup.retrofit2：适配器rxjava2：2.3.0
com.facebook.stetho：stetho：1.5.0
com.facebook.stetho：stetho-okhttp3：1.5.0