feign呼叫介面不穩定解決
阿新 • • 發佈：2018-11-09
Caused by: java.net.SocketException: Software caused connection abort: recv failed at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.socketRead(SocketInputStream.java:116) at java.net.SocketInputStream.read(SocketInputStream.java:170) at java.net.SocketInputStream.read(SocketInputStream.java:141) at org.apache.http.impl.io.SessionInputBufferImpl.streamRead(SessionInputBufferImpl.java:137) at org.apache.http.impl.io.SessionInputBufferImpl.fillBuffer(SessionInputBufferImpl.java:153) at org.apache.http.impl.io.SessionInputBufferImpl.readLine(SessionInputBufferImpl.java:282) at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:140) at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:57) at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:259) at org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:163) at org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:167) at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:273) at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:125) at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:271) at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184) at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88) at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:55) at feign.httpclient.ApacheHttpClient.execute(ApacheHttpClient.java:87) at org.springframework.cloud.netflix.feign.ribbon.RetryableFeignLoadBalancer$1.doWithRetry(RetryableFeignLoadBalancer.java:92) at org.springframework.cloud.netflix.feign.ribbon.RetryableFeignLoadBalancer$1.doWithRetry(RetryableFeignLoadBalancer.java:77) at org.springframework.retry.support.RetryTemplate.doExecute(RetryTemplate.java:286) at org.springframework.retry.support.RetryTemplate.execute(RetryTemplate.java:163) at org.springframework.cloud.netflix.feign.ribbon.RetryableFeignLoadBalancer.execute(RetryableFeignLoadBalancer.java:77) at org.springframework.cloud.netflix.feign.ribbon.RetryableFeignLoadBalancer.execute(RetryableFeignLoadBalancer.java:48) at com.netflix.client.AbstractLoadBalancerAwareClient$1.call(AbstractLoadBalancerAwareClient.java:109) at com.netflix.loadbalancer.reactive.LoadBalancerCommand$3$1.call(LoadBalancerCommand.java:303) at com.netflix.loadbalancer.reactive.LoadBalancerCommand$3$1.call(LoadBalancerCommand.java:287) at rx.internal.util.ScalarSynchronousObservable$3.call(ScalarSynchronousObservable.java:231) at rx.internal.util.ScalarSynchronousObservable$3.call(ScalarSynchronousObservable.java:228) at rx.Observable.unsafeSubscribe(Observable.java:10211) at rx.internal.operators.OnSubscribeConcatMap$ConcatMapSubscriber.drain(OnSubscribeConcatMap.java:286) at rx.internal.operators.OnSubscribeConcatMap$ConcatMapSubscriber.onNext(OnSubscribeConcatMap.java:144) at com.netflix.loadbalancer.reactive.LoadBalancerCommand$1.call(LoadBalancerCommand.java:185) at com.netflix.loadbalancer.reactive.LoadBalancerCommand$1.call(LoadBalancerCommand.java:180) at rx.Observable.unsafeSubscribe(Observable.java:10211) at rx.internal.operators.OnSubscribeConcatMap.call(OnSubscribeConcatMap.java:94) at rx.internal.operators.OnSubscribeConcatMap.call(OnSubscribeConcatMap.java:42) at rx.Observable.unsafeSubscribe(Observable.java:10211) at rx.internal.operators.OperatorRetryWithPredicate$SourceSubscriber$1.call(OperatorRetryWithPredicate.java:127) at rx.internal.schedulers.TrampolineScheduler$InnerCurrentThreadScheduler.enqueue(TrampolineScheduler.java:73) at rx.internal.schedulers.TrampolineScheduler$InnerCurrentThreadScheduler.schedule(TrampolineScheduler.java:52) at rx.internal.operators.OperatorRetryWithPredicate$SourceSubscriber.onNext(OperatorRetryWithPredicate.java:79) at rx.internal.operators.OperatorRetryWithPredicate$SourceSubscriber.onNext(OperatorRetryWithPredicate.java:45) at rx.internal.util.ScalarSynchronousObservable$WeakSingleProducer.request(ScalarSynchronousObservable.java:276) at rx.Subscriber.setProducer(Subscriber.java:209) at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:138) at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:129) at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) at rx.Observable.subscribe(Observable.java:10307) at rx.Observable.subscribe(Observable.java:10274) at rx.observables.BlockingObservable.blockForSingle(BlockingObservable.java:445) at rx.observables.BlockingObservable.single(BlockingObservable.java:342) at com.netflix.client.AbstractLoadBalancerAwareClient.executeWithLoadBalancer(AbstractLoadBalancerAwareClient.java:117) at org.springframework.cloud.netflix.feign.ribbon.LoadBalancerFeignClient.execute(LoadBalancerFeignClient.java:63) at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:97) ... 117 common frames omitted
feign在呼叫時，會有不穩定的情況出現，時而出現介面調不通。解決方案如下，複寫FeignRibbonClientAutoConfiguration中的HttpClient的配置。程式碼如下：
import org.apache.http.config.Registry; import org.apache.http.config.RegistryBuilder; import org.apache.http.conn.socket.ConnectionSocketFactory; import org.apache.http.conn.socket.PlainConnectionSocketFactory; import org.apache.http.conn.ssl.NoopHostnameVerifier; import org.apache.http.conn.ssl.SSLConnectionSocketFactory; import org.apache.http.impl.NoConnectionReuseStrategy; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClients; import org.apache.http.impl.conn.PoolingHttpClientConnectionManager; import org.apache.http.ssl.SSLContexts; import org.springframework.context.annotation.Bean; import org.springframework.stereotype.Component; import javax.net.ssl.SSLContext; import javax.net.ssl.TrustManager; import javax.net.ssl.X509TrustManager; import java.security.KeyManagementException; import java.security.cert.CertificateException; import java.security.cert.X509Certificate; @Component public class FeignRibbonHttpClientPoolConfig { private static final int POOL_MAX_TOTAL = 3000; private static final int DEFAULT_MAX_PER_ROUTE = 500; //validateAfterInactivity 空閒永久連線檢查間隔，這個牽扯的還比較多 //官方推薦使用這個來檢查永久連結的可用性，而不推薦每次請求的時候才去檢查 private static final int VALIDATE_AFTER_INACTIVITY = 1000; @Bean(name = "httpClient", destroyMethod = "close") CloseableHttpClient httpClient() throws KeyManagementException { return buildCloseableHttpClient(); } /** * 構建HttpClient連線池 * * @return * @throws KeyManagementException */ public CloseableHttpClient buildCloseableHttpClient() throws KeyManagementException { SSLContext sslcontext = SSLContexts.createDefault(); sslcontext.init(null, new TrustManager[]{new TrustAnyManager()}, null); //設定https客戶端信任萬能證書 SSLConnectionSocketFactory ssf = new SSLConnectionSocketFactory(sslcontext, NoopHostnameVerifier.INSTANCE); //註冊請求方式，根據URL自動請求 Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory>create() .register("http", PlainConnectionSocketFactory.INSTANCE) .register("https", ssf) .build(); //建立Http連線池，單位時間內釋放已使用過連線池中的連線 PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager(socketFactoryRegistry); connectionManager.setMaxTotal(POOL_MAX_TOTAL); connectionManager.setDefaultMaxPerRoute(DEFAULT_MAX_PER_ROUTE); connectionManager.setValidateAfterInactivity(VALIDATE_AFTER_INACTIVITY); return HttpClients.custom() .setConnectionManager(connectionManager) .setConnectionReuseStrategy(NoConnectionReuseStrategy.INSTANCE) .build(); } class TrustAnyManager implements X509TrustManager { public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException { } public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException { } public X509Certificate[] getAcceptedIssuers() { return new X509Certificate[]{}; } } }