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。

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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)。

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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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