01: /*
02: * This program is free software; you can redistribute it and/or modify
03: * it under the terms of the GNU General Public License as published by
04: * the Free Software Foundation; either version 2 of the License, or
05: * (at your option) any later version.
06: *
07: * This program is distributed in the hope that it will be useful,
08: * but WITHOUT ANY WARRANTY; without even the implied warranty of
09: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10: * GNU Library General Public License for more details.
11: *
12: * You should have received a copy of the GNU General Public License
13: * along with this program; if not, write to the Free Software
14: * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
15: */
16: package dlog4j.security;
17:
18: import javax.servlet.http.HttpServletRequest;
19: import javax.servlet.jsp.JspException;
20: import javax.servlet.jsp.tagext.TagSupport;
21:
22: import dlog4j.formbean.UserForm;
23:
24: /**
25: * ÅжÏÓû§ÊÇ·ñµÇ½
26: * <xxx:isLogin/>
27: * @author Winter Lau
28: */
29: public class IsLoginTag extends TagSupport {
30:
31: public int doStartTag() throws JspException {
32: UserForm user = UserForm
33: .getLoginUser((HttpServletRequest) pageContext
34: .getRequest());
35: return (user == null) ? SKIP_BODY : EVAL_BODY_INCLUDE;
36: }
37: }
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