通过httpclient访问第三方接口，并发量上来总是出现管道断开异常，这个该如何处理比较好？

请求部分代码：

CloseableHttpClient client = HttpClients.createDefault();

String content = null;

CloseableHttpResponse resp = null;

try {

resp = client.execute(httpPost);

if (resp.getStatusLine().getStatusCode() == 200) {

HttpEntity he = resp.getEntity();

content = EntityUtils.toString(he, encode);

}

异常：

o.s.boot.context.web.ErrorPageFilter :Cannot forward to error page for request [/api/xx/xxx] as the response has already been committed.

Caused by: java.io.IOException: 断开的管道

at sun.nio.ch.FileDispatcherImpl.write0(Native Method) ~[na:1.8.0_91]

at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47) ~[na:1.8.0_91]

at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93) ~[na:1.8.0_91]

at sun.nio.ch.IOUtil.write(IOUtil.java:65) ~[na:1.8.0_91]

at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471) ~[na:1.8.0_91]

at org.apache.tomcat.util.net.NioChannel.write(NioChannel.java:124) ~[tomcat-coyote.jar:8.0.28]