当用Java编写的程序运行时,它的所有类都将被加载到主内存中吗？如果是这样,是不是浪费了RAM？
access.log格式配置可能是这样的
'$remote_addr - $remote_user [$time_local] "$request" $status $body_bytes_sent "$http_referer" "$http_user_agent"'
有没有办法生成一个正则表达式来匹配access.log根据它？我可以根据实际日志编写正则表达式:
'112.3.194.120 - - [17/Jan/2015:20:07:34 +0800] "GET /Introdction%20to%20Guitar/1%20-%202%20-%20Choosing%20the%20Right%20Guitar-%20Right-Handed%20vs%20Left-Handed%20(3-20).mp4 HTTP/1.1" 206 546849 "http://example.com/video/302/" "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.63 Safari/537.36"'
但我不能用格式配置写正则表达式.有人可以帮忙吗？