Servlet filter is one of the three main components of Java Web. It is very similar to Servlet, but filters are different from Servlet functions. Filters are used to intercept requests instead of processing requests. When a user requests a Servlet, it will execute the Filter deployed on the request first. If Filter is released, it will inherit the Servlet that the user requests. If Filter does not "release", then the user request Servlet will not be executed.

Filename	Size	Update
2015012934_7	0	2017-10-08
2015012934_7\.classpath	1093	2017-10-08
2015012934_7\.project	1337	2017-10-08
2015012934_7\.settings	0	2017-10-08
2015012934_7\.settings\.jsdtscope	522	2017-10-08
2015012934_7\.settings\org.eclipse.jdt.core.prefs	364	2017-10-08
2015012934_7\.settings\org.eclipse.wst.common.component	495	2017-10-08
2015012934_7\.settings\org.eclipse.wst.common.project.facet.core.xml	414	2017-10-08
2015012934_7\.settings\org.eclipse.wst.jsdt.ui.superType.container	49	2017-10-08
2015012934_7\.settings\org.eclipse.wst.jsdt.ui.superType.name	6	2017-10-08
2015012934_7\src	0	2017-10-08
2015012934_7\src\filter	0	2017-10-08
2015012934_7\src\filter\CharacterEncodingFilter.java	2099	2017-10-08
2015012934_7\src\filter\EncodingFilter.java	907	2017-10-08
2015012934_7\src\filter\FilterIP.java	2466	2017-10-08
2015012934_7\src\servlet	0	2017-10-08
2015012934_7\src\servlet\CheckParamServlet.java	1209	2017-10-08
2015012934_7\WebRoot	0	2017-10-08
2015012934_7\WebRoot\filter	0	2017-10-08
2015012934_7\WebRoot\filter\login.html	603	2017-10-08
2015012934_7\WebRoot\index.jsp	398	2017-10-08
2015012934_7\WebRoot\ipfilter	0	2017-10-08
2015012934_7\WebRoot\ipfilter\filtIp.jsp	477	2017-10-08
2015012934_7\WebRoot\login.html	611	2017-10-08
2015012934_7\WebRoot\loginfilter	0	2017-10-08
2015012934_7\WebRoot\loginfilter\checkUser.jsp	538	2017-10-08
2015012934_7\WebRoot\loginfilter\main.jsp	180	2017-10-08
2015012934_7\WebRoot\META-INF	0	2017-10-08
2015012934_7\WebRoot\META-INF\MANIFEST.MF	39	2017-10-08
2015012934_7\WebRoot\WEB-INF	0	2017-10-08
2015012934_7\WebRoot\WEB-INF\classes	0	2017-10-08
2015012934_7\WebRoot\WEB-INF\classes\filter	0	2017-10-08
2015012934_7\WebRoot\WEB-INF\classes\filter\CharacterEncodingFilter.class	2871	2017-10-08
2015012934_7\WebRoot\WEB-INF\classes\filter\EncodingFilter.class	1667	2017-10-08
2015012934_7\WebRoot\WEB-INF\classes\filter\FilterIP.class	2796	2017-10-08
2015012934_7\WebRoot\WEB-INF\classes\servlet	0	2017-10-08
2015012934_7\WebRoot\WEB-INF\classes\servlet\CheckParamServlet.class	1826	2017-10-08
2015012934_7\WebRoot\WEB-INF\lib	0	2017-10-08
2015012934_7\WebRoot\WEB-INF\web.xml	1252	2017-10-08
实验7 过滤器.doc	199168	2017-10-08

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