我试图同步调用两个rest API。但是，在完成第一个 rest api 调用后，第二个调用抛出异常，如下所示。我也尝试过一些 httpClientConnectionPooling 概念，但它不起作用。
org.springframework.boot.context.web.ErrorPageFilter.handleCommittedResponse(209) - Cannot forward to error page for request [/api/v1/subscribers] as the response has already been committed. As a result, the response may have the wrong status code. If your application is running on WebSphere Application Server you may be able to resolve this problem by setting com.ibm.ws.webcontainer.invokeFlushAfterService to false
org.apache.catalina.connector.ClientAbortException: java.io.IOException: Broken pipe
at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:393) ~[catalina.jar:8.0.29]
at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:426) ~[tomcat-util.jar:8.0.29]
at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:342) ~[catalina.jar:8.0.29]
at org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:317) ~[catalina.jar:8.0.29]
at org.apache.catalina.connector.CoyoteOutputStream.flush(CoyoteOutputStream.java:110) ~[catalina.jar:8.0.29]
at com.fasterxml.jackson.core.json.UTF8JsonGenerator.flush(UTF8JsonGenerator.java:1022) ~[jackson-core-2.6.4.jar:2.6.4]
at …