tomcat报下面错误：
16-Jul-2020 09:07:39.431 严重 [http-nio-8083-exec-11] org.apache.coyote.http11.Http11Processor.service Error processing request
org.apache.coyote.http11.HeadersTooLargeException: An attempt was made to write more data to the response headers than there was room available in the buffer. Increase maxHttpHeaderSize on the connector or write less data into the response headers.
at org.apache.coyote.http11.Http11OutputBuffer.checkLengthBeforeWrite(Http11OutputBuffer.java:481)
at org.apache.coyote.http11.Http11OutputBuffer.write(Http11OutputBuffer.java:434)
at org.apache.coyote.http11.Http11OutputBuffer.write(Http11OutputBuffer.java:420)
at org.apache.coyote.http11.Http11OutputBuffer.sendHeader(Http11OutputBuffer.java:380)
at org.apache.coyote.http11.Http11Processor.prepareResponse(Http11Processor.java:990)
at org.apache.coyote.AbstractProcessor.action(AbstractProcessor.java:258)
at org.apache.coyote.Response.action(Response.java:167)
at org.apache.coyote.http11.Http11OutputBuffer.doWrite(Http11OutputBuffer.java:195)
at org.apache.coyote.Response.doWrite(Response.java:500)
at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:337)
at org.apache.catalina.connector.OutputBuffer.flushByteBuffer(OutputBuffer.java:794)
at org.apache.catalina.connector.OutputBuffer.realWriteChars(OutputBuffer.java:442)
at org.apache.catalina.connector.OutputBuffer.flushCharBuffer(OutputBuffer.java:799)
at org.apache.catalina.connector.OutputBuffer.close(OutputBuffer.java:231)
at org.apache.catalina.connector.Response.finishResponse(Response.java:477)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:379)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:495)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:767)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1347)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
解决办法：根据错误org.apache.coyote.http11.HeadersTooLargeException可以看出请求头数据超出;
出现这种问题。我们可以尝试在打开tomcat的配置文件，
我们可以在tomcat中加maxHttpHeaderSize ="102400" 这一句，如下图
