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package com.accp.filter;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
public class MyFilter extends HttpServlet implements Filter {
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
HttpServletRequest arg0 =(HttpServletRequest)request;
arg0.getSession().setAttribute("eurl", arg0.getRequestURI());
chain.doFilter(request, response);
/***
* ÀàÐèÒª¼Ì³ÐHttpServlet ºÍ ʵÏÖ½Ó¿Ú Filter (¹ýÂËÆ÷)
* Ìí¼ÓÒ»¸ödoFilter ·½·¨£¨ÓÒ»÷Ñ¡Ôñ Source---- Override/mplement Methods£©
* ¶¨ÒåHttpServletRequest,±äÁ¿arg0 ½ÓÊÕ request £¨ÐèҪת»»ÀàÐÍ£©
* arg0.getSession().setAttribute("ErrorUrl", arg0.getRequestURI());
*/
}
public void init(FilterConfig filterConfig) throws ServletException {
// TODO Auto-generated method stub
}
}
------------------Web.XmlµÄÅäÖÃ
<filter>
<filter-name>names</filter-name>
<filter-class>com.accp.filter.MyFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>names</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<error-page>
<error-code>500</error-code>
<location>/Error.jsp</location>
</error-page>
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