用户登陆页面user_login.jsp对应action为login.do：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>用户登陆</title> <script type="text/javascript"> function confirmCodeNew(o){ o.src="<s:url action='confirm' namespace='/validation'/>"; } </script> </head> <body> <form id="loginform" name="loginform" method="post" action="<s:url action='process'/>" onsubmit="return checkLoginForm();"> <table width="308" height="232" border="0" cellpadding="0" cellspacing="0" class="table3"> <tr> <td colspan="10"><span class="font_red"><s:actionerror/></span></td> </tr> <tr> <td width="82" height="40" align="right" valign="middle" class="font06">用户名：</td> <td colspan="3" align="left" valign="middle"><input type="text" name="username" id="username" tabindex="1" /></td> </tr> <tr> <td width="82" height="40" align="right" valign="middle" class="font06">密 码：</td> <td colspan="3" align="left" valign="middle"><input type="password" name="pwd" id="pwd" tabindex="2" /></td> </tr> <tr> <td width="82" height="40" align="right" valign="middle" class="font06">验证码：</td> <td width="59" align="left" valign="middle"><input name="confirm_code" type="text" class="table3" size="5" maxlength="4" /></td> <td width="79"><img src="<s:url action='confirm' namespace='/validation'/>" onclick="confirmCodeNew(this)" style="cursor:pointer" /></td> <td width="86" align="left" valign="middle" class="font06"> </td> </tr> <tr> <td height="40"> </td> <td colspan="3" align="left" valign="middle"><input type="checkbox" name="rember_me" onclick="remeber_me_change(this);"/> <span class="font06">记住用户名</span></td> </tr> <tr> <td height="50"> </td> <td height="50" colspan="3" align="left" valign="middle"><img src="<s:url value='/images/3vsxdt_36.gif'/>" onclick="checkLoginForm()" style="cursor:pointer" width="158" height="42" border="0" /></td> </tr> </table> </form> </body> </html>
用户登陆类(UserLogin.java)：
package com.web.struts.action; import javax.servlet.http.Cookie; import org.apache.commons.lang.StringUtils; import commodel.Member; import com.service.IMemberService; import com.tools.Constant; import com.tools.MD5Bean; /** * title:用户登陆 * * @author conkeyn * @时间 2009-3-24:上午10:06:25 */ public class UserLogin extends BaseAction { /** */ private static final long serialVersionUID = -8059803575427183277L; private Member member; public void setMemberService(IMemberService memberService) { this.memberService = memberService; } private IMemberService memberService; /** * 退出 * * @return */ public String logout() { getSession().removeAttribute(Constant.MEMBER_SESSION_ID); Cookie[] cookies = getRequest().getCookies(); Cookie member_cookie = null; for (int i = 0; i < cookies.length; i++) { member_cookie = cookies[i]; if (member_cookie != null && StringUtils.isNotBlank(member_cookie.getName()) && StringUtils.isNotBlank(member_cookie.getValue()) && member_cookie.getName().equals( Constant.MEMBER_SESSION_ID)) { member_cookie.setMaxAge(-1);// 设置有效期为-1秒,浏览器会自动删除 getResponse().addCookie(member_cookie); break; } } return SUCCESS; } /** * 用户登陆 * * @return */ public String login() { return "login"; } /** * 处理用户登陆 * * @return */ public String process() { String confirm_code = getRequest().getParameter("confirm_code"); String confirmcode = (String) getSession().getAttribute("confirmcode"); if (StringUtils.isNotBlank(confirm_code) && StringUtils.isNotBlank(confirmcode) && confirm_code.equals(confirmcode)) { String username = getRequest().getParameter("username"); String pwd = getRequest().getParameter("pwd"); String rember_me = getRequest().getParameter("rember_me"); MD5Bean md5 = new MD5Bean(); pwd = md5.MD5Encrypt(pwd); member = memberService.getMember(username); if (member == null) { this.addActionError("不存在该用户，请注册后再登陆！"); return ERROR; } else if (!pwd.equalsIgnoreCase(member.getPwd())) { this.addActionError("密码错误，请重新输入！"); return ERROR; } getSession().setAttribute(Constant.MEMBER_SESSION_ID, member.getUsername()); // 设置cookie if (StringUtils.isNotBlank(rember_me) && rember_me.equalsIgnoreCase("true")) { Cookie cookie = new Cookie(Constant.MEMBER_SESSION_ID, member .getUsername()); cookie.setMaxAge(60 * 60 * 24 * 365); getResponse().addCookie(cookie); } member.setLoged(true); memberService.saveMember(member); } else { this.addActionError("验证码错误，请重新输入！"); return ERROR; } return SUCCESS; } public Member getMember() { return member; } public void setMember(Member member) { this.member = member; } }
Struts配置文件（struts-login.xml）：
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd" >
<struts>
<package name="login" extends="struts-default">
<!-- 登陆 -->
<action name="login" class="memberAction" method="login">
<result name="login" type="dispatcher"> /WEB-INF/pages/userlogin.jsp
</result>
</action>
<action name="logout" class="memberAction" method="logout">
<result name="success" type="redirectAction">login</result>
</action>
<action name="process" class="memberAction" method="process">
<result name="error" type="dispatcher">/WEB-INF/pages/userlogin.jsp
</result>
<result name="success" type="dispatcher">/WEB-INF/pages/userlogin_msg.jsp
</result>
</action>
</package>
</struts>