Hibernate还是比较常用的，于是我研究了一下Hibernate设置过滤器，在这里拿出来和大家分享一下，希望对大家有用。
通过Hibernate设置过滤器判断用户权限.
第一步:建立UserPermissionFilter类.
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import javax.servlet.*; import javax.servlet.http.*; import java.io.*; import java.util.*; import test.system.SysUserApi; import test.vo.SysUserVO; import test.system.dao.SysUserDao; import test.Const; public class UserPermissionFilter extends HttpServlet implements Filter { protected FilterConfig filterConfig = null; public void destroy() { this.filterConfig = null; } public void doFilter(ServletRequest request,ServletResponse response,
FilterChain filterChain) throws IOException,ServletException { try { HttpServletRequest req = (HttpServletRequest) request; SysUserVO userSession = new SysUserVO(); userSession = (SysUserVO)req.getSession().getAttribute(Const.SESSION_USER); if (userSession == null) { HttpServletResponse rep = (HttpServletResponse) response; rep.sendRedirect("/admin/login.jsp"); } else{ filterChain.doFilter(request, response); } } catch (Exception e) {} } public void init(FilterConfig filterConfig) throws ServletException { this.filterConfig = filterConfig; } public FilterConfig getFilterConfig() { return filterConfig; } public void setFilterConfig(FilterConfig filterConfig) { this.filterConfig = filterConfig; } } 1.
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第二步:配置WEB.xml文件，Hibernate设置过滤器:
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<filter> <filter-name>userpermission</filter-name> <filter-class>sports.tools.UserPermissionFilter</filter-class> </filter>
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Hibernate设置过滤器映射,因为过滤器不能过滤全部的程序,所以可以用列表的形式来增加需要过滤的文件.如下.一个过滤器可以过滤多个映射文件.
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<filter-mapping> <filter-name>userpermission</filter-name> <url-pattern>/admin/index.jsp</url-pattern> </filter-mapping> <filter-mapping> <filter-name>userpermission</filter-name> <url-pattern>/admin/edit/*</url-pattern> </filter-mapping>
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