Tomcat報錯如下:

解決方案:
問題出現原因是Tomcat的header緩沖區大小不夠,需要conf目錄下的server.xml中增加maxHttpHeaderSize字段即可:
<Connector port="8080"
executor="tomcatThreadPool"
protocol="HTTP/1.1"
maxThreads="1000"
maxHttpHeaderSize="8192"
minSpareThreads="100"
maxSpareThreads="200"
acceptCount="1000"
maxConnections="1000"
connectionTimeout="30000"
keepAliveTimeout="15000"
maxKeepAliveRequests="1"
tcpNoDelay="true"
redirectPort="8443"
enableLookups="false"
URIEncoding="UTF-8"/>
