tomcat8 运行期错误HTTP header parsing errors-优快云博客

本文链接：https://blog.youkuaiyun.com/midWander/article/details/84829993

本文介绍了解决Tomcat中因HTTP请求头过大导致的解析错误的方法。通过调整server.xml中的maxHttpHeaderSize参数值，可以有效避免此类问题的发生。

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添加头部信息后，开发阶段没异常，部署到tomcat中调用时出现错误：

07-Dec-2016 16:03:57.210 信息 [http-nio-8080-exec-5] 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.IllegalArgumentException: Invalid character found in method name. HTTP method names must be tokens
	at org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:462)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:667)
	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:1410)
	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)

需要在tomcat的server.xml中配置：

maxHttpHeaderSize="8192"

上面这行配置在这里：

    <Connector port="8080" protocol="HTTP/1.1"
			   maxHttpHeaderSize="8192" 
                           connectionTimeout="20000"
			   maxThreads="150"
			   maxSpareThreads="75"
               redirectPort="8443" />