请教几个JSP问题,等着救命,谢谢
1:在访问几次连接池后,出现资源不足,应该怎么解决?调用哪个方法来释放资源呢?
2:在MVC的模式中,是通过Controller来访问Viewer的,那么,出了使用Filter之外,怎么禁止别人直接访问Viewer呢?
3:我在使用Filter时,只要一配置web.xml,就出现无法访问所有页面的情况,是什么原因呢?源码:
在web.xml的web-app里加入了:
<filter>
<filter-name>servfilter</filter-name>
<filter-class>test.servfilter</filter-class>
</filter>
<filter-mapping>
<filter-name>servfilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
Filter:
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
public class BaseFilter extends HttpServlet implements Filter {
private FilterConfig filterConfig;
public void init(FilterConfig filterConfig) {
this.filterConfig = filterConfig;
}
public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain) {
try {
request.setCharacterEncoding("GB2312");
filterChain.doFilter(request,response);
} catch(ServletException sx) {
filterConfig.getServletContext().log(sx.getMessage());
}
catch(IOException iox) {
filterConfig.getServletContext().log(iox.getMessage());
}
}
public void destroy() {
}
}
求哪位高手帮帮忙,真的是等救命的,我只有70分了,全部送上,不够的话我再想办法散分,谢谢