INFO：Error parsing HTTP request header Note：further occurrences of HTTP XXXX 错误

最近后台日志报错如下：

主要原因是server.xml文件里没有配置Tomcat的header缓冲区大小，默认缓存区无法满足时报错，只需要在server.xml中增加maxHttpHeaderSize字段即可：

<Connector port="7070" executor="tomcatThreadPool" protocol="HTTP/1.1" 
				connectionTimeout="20000"
				maxHttpHeaderSize="8999"	
				URIEncoding="UTF-8"