完美解决 Invalid character found in method name. HTTP method names must be tokens

一、报错日志

java.lang.IllegalArgumentException: Invalid character found in method name. HTTP method names must be tokens
    at org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:428)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:684)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:806)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498)
    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)

二、解决方案

     1. 和网络协议有关系：

                检查你的请求方式是否为https。如果是的话，修改为http。

     2. SSL的证书是否到期？证书安装路径是否正确？

     3. Tomcat的 header 缓冲区大小太小

          server.xml 文件可以加上 maxHttpHeaderSize="8192"  

     <Connector port="8080" executor="tomcatThreadPool"
        protocol="HTTP/1.1"
        maxThreads="1000"
        maxHttpHeaderSize="8192"

     4. 修改端口号