执行 Apache HttpClient 时出现 java.lang.InterruptedException答案

【问题标题】：java.lang.InterruptedException while executing Apache HttpClient执行 Apache HttpClient 时出现 java.lang.InterruptedException
【发布时间】：2017-09-25 23:05:21
【问题描述】：

我们使用库 org.apache.http.client.HttpClient 从我们的 Web 服务访问其他 Web 服务。

HttpRequestBase requestBase = <set uri>
httpClient.execute(requestBase);

现在在某些时候，会发生这种异常：

Caused by: java.lang.InterruptedException: Operation interrupted
    at org.apache.http.pool.PoolEntryFuture.await(PoolEntryFuture.java:142) ~[httpcore-4.4.4.jar:4.4.4]
    at org.apache.http.pool.AbstractConnPool.getPoolEntryBlocking(AbstractConnPool.java:306) ~[httpcore-4.4.4.jar:4.4.4]
    at org.apache.http.pool.AbstractConnPool.access$000(AbstractConnPool.java:64) ~[httpcore-4.4.4.jar:4.4.4]
    at org.apache.http.pool.AbstractConnPool$2.getPoolEntry(AbstractConnPool.java:192) ~[httpcore-4.4.4.jar:4.4.4]
    at org.apache.http.pool.AbstractConnPool$2.getPoolEntry(AbstractConnPool.java:185) ~[httpcore-4.4.4.jar:4.4.4]
    at org.apache.http.pool.PoolEntryFuture.get(PoolEntryFuture.java:107) ~[httpcore-4.4.4.jar:4.4.4]
    at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.leaseConnection(PoolingHttpClientConnectionManager.java:276) ~[httpclient-4.5.2.jar:4.5.2]
    at org.apache.http.impl.conn.PoolingHttpClientConnectionManager$1.get(PoolingHttpClientConnectionManager.java:263) ~[httpclient-4.5.2.jar:4.5.2]
    at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:190) ~[httpclient-4.5.2.jar:4.5.2]
    at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184) ~[httpclient-4.5.2.jar:4.5.2]
    at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88) ~[httpclient-4.5.2.jar:4.5.2]
    at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) ~[httpclient-4.5.2.jar:4.5.2]
    at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184) ~[httpclient-4.5.2.jar:4.5.2]
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) ~[httpclient-4.5.2.jar:4.5.2]
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107) ~[httpclient-4.5.2.jar:4.5.2]
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:55) ~[httpclient-4.5.2.jar:4.5.2]

有时候这个会出现

Caused by: org.apache.http.impl.execchain.RequestAbortedException: Request aborted
    at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:193) ~[httpclient-4.5.2.jar:4.5.2]
    at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184) ~[httpclient-4.5.2.jar:4.5.2]
    at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88) ~[httpclient-4.5.2.jar:4.5.2]
    at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) ~[httpclient-4.5.2.jar:4.5.2]
    at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184) ~[httpclient-4.5.2.jar:4.5.2]
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) ~[httpclient-4.5.2.jar:4.5.2]
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107) ~[httpclient-4.5.2.jar:4.5.2]
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:55) ~[httpclient-4.5.2.jar:4.5.2]
    at 
Caused by: java.lang.InterruptedException
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2045) ~

这种情况会间歇性发生。这可能是什么原因造成的？在这方面需要帮助。将不胜感激我能得到的任何建议。

【问题讨论】：

标签： java apache-httpclient-4.x apache-httpcomponents

【解决方案1】：

客户端似乎中止了 http 请求。您是否在代码中使用了任何类型的线程池执行程序，这些线程池执行程序正在提交请求，并且稍后由于任何原因被取消（可能是第三方响应缓慢）？

【讨论】：