If the log level is set to INFO it will log an entry whenever a request passes the servlet filter and whether that request has been forwarded to Dispatcher or not.
如果把日志级别设置为INFO，那么每当有请求经过servlet筛选器时都记录一个条目，无论是否把请求转发给Dispatcher。
You can call methods on the log object that correspond to the desired log level: debug, info, error, and so on. (See Resources for more information on logging.)
可以调用log对象上与想要的日志级别相对应的方法，这些日志级别包括：debug、info和error等(参见参考资料了解关于日志记录的更多信息)。
Rejected CONNECT requests are logged with log level info (enabled by default) and the reason for the block.
拒绝连接请求登录与日志级别信息（默认激活） ，其原因就块。
Rejected CONNECT requests are logged with log level info (enabled by default) and the reason for the block.
拒绝连接请求登录与日志级别信息（默认激活） ，其原因就块。
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