做crm项目tomcat的缓冲区未回收问题，请问如何解决？

Question

技术点:selert+mybatis+bootstrap

06-Jul-2021 19:04:15.315 INFO [http-nio-8080-exec-8] org.apache.coyote.http11.Http11Processor.service Error parsing HTTP request header
Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level.
java.lang.IllegalStateException: Unexpected state: headers already parsed. Buffer not recycled?
at org.apache.coyote.http11.Http11InputBuffer.parseHeaders(Http11InputBuffer.java:588)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:684)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:802)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1452)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
06-Jul-2021 19:04:15.317 SEVERE [http-nio-8080-exec-7] org.apache.coyote.http11.Http11Processor.service Error processing request
java.lang.NullPointerException
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:389)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:784)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:802)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1452)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
06-Jul-2021 19:04:15.318 SEVERE [http-nio-8080-exec-7] org.apache.coyote.http11.Http11Processor.endRequest Error finishing response
java.lang.NullPointerException
at org.apache.coyote.http11.Http11OutputBuffer.flushBuffer(Http11OutputBuffer.java:533)
at org.apache.coyote.http11.Http11OutputBuffer.finishResponse(Http11OutputBuffer.java:320)
at org.apache.coyote.http11.Http11Processor.endRequest(Http11Processor.java:1458)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:823)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:802)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1452)

Answer 1

这是一个info级别的日志，问题是收到的请求的header无法解析。你先确认一下导致错误的http请求有没有问题，把完整的请求发出来看看。
还可以把tomcat的日志级别改到debug，看看详细信息。