用户必须先登录，否则无法完成任何操作
登录jsp页面：
<%@ page language="java" pageEncoding="UTF-8"%>
<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html"%>
<html>
<head>
<title>LoginForm form</title>
<link rel="stylesheet" type="text/css" href="format1.css"/>
</head>
<script type="text/javascript">
function getIdPassword()
{
var patrn=/^\d{1}|\d{2}$/;
var id = document.form.id;
var password = document.form.password;
if(id.value !=""&&password.value !="")
{
if ( id.value.match(patrn) !=null)
{
return true;
}
else
{
alert("ID输入错误");
return false;
}
}
else
{
alert("ID或密码为空！");
return false;
}
}
</script>
<body class="bg">
<%
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
%>
<form action="login.do" method="post" name="form"
onsubmit="return getIdPassword()">
<table>
<tr>
<td>类型：</td>
<td><input name="usertype" type="radio" value="supermanager" />超级管理员
</td>
<td><input name="usertype" type="radio" value="commonmanager"
checked />普通管理员</td>
</tr>
<tr>
<td>ID:</td>
<td colspan="2"><input name="id" type="text" />${sessionScope.warning}
</td>
</tr>
<tr>
<td>密码:</td>
<td colspan="2"><input name="password" type="password">
</td>
</tr>
<tr>
<td><input name="submit" type="submit" value="submit">
</td>
<td></td>
<td><input name="reset" type="reset" value="reset">
</td>
</tr> </table>
</form>
</body>
</html>
FormBean源代码:
/*
* Generated by MyEclipse Struts
* Template path: templates/java/JavaClass.vtl
*/
package com.performance.struts.form;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
/**
* MyEclipse Struts
* Creation date: 03-03-2012
*
* XDoclet definition:
* @struts.form name="loginForm"
*/
public class LoginForm extends ActionForm
{
private String usertype;
private String id;
private String password;
public String getUsertype()
{
return usertype;
}
public void setUsertype(String usertype)
{
this.usertype = usertype;
}
public String getId()
{
return id;
}
public void setId(String id)
{
this.id = id;
}
public String getPassword()
{
return password;
}
public void setPassword(String password)
{
this.password = password;
}
}
用以保存状态的User实体类：
package com.performance.entity;
public class User
{
private String usertype;
private String id;
private String password;
public String getUsertype()
{
return usertype;
}
public void setUsertype(String usertype)
{
this.usertype = usertype;
}
@Override
public String toString()
{
return "User [usertype=" + usertype + ", id=" + id + ", password="
+ password + "]";
}
public String getId()
{
return id;
}
public void setId(String id)
{
this.id = id;
}
public String getPassword()
{
return password;
}
public void setPassword(String password)
{
this.password = password;
}
}
ActionBean源代码:
package com.performance.struts.action;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import com.performance.entity.TuserInfo;
import com.performance.entity.User;
import com.performance.operation.Operation;
import com.performance.struts.form.LoginForm;
public class LoginAction extends Action
{
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
{
LoginForm loginForm = (LoginForm) form;// TODO Auto-generated method
// stub
String usertype = loginForm.getUsertype();
String id = loginForm.getId();
String password = loginForm.getPassword();
if (usertype.equals("supermanager"))
{
if (id.equals("1") && password.equals("a"))
{
User user = new User();
user.setId(id);
user.setPassword(password);
user.setUsertype(usertype);
request.getSession().setAttribute("user", user);
request.setAttribute("msg", id);
System.out.println(user);
System.out.println("-----------3-------------");
return mapping.findForward("super");
} else
{
request.getSession().setAttribute("warning", "ID或密码错！");
return mapping.findForward("failure");
}
} else
{
User user = new User();
user.setId(id);
user.setPassword(password);
user.setUsertype(usertype);
request.getSession().setAttribute("user", user);
System.out.println(user);
Operation operation = new Operation();
TuserInfo common = operation.findById(id);
System.out.println(common);
if (common != null
&& common.getFloginPass().trim().equals(password))
{
request.getSession()
.setAttribute("msg", common.getFloginName());
return mapping.findForward("common");
} else
{
request.getSession().setAttribute("warning", "ID或密码错！");
return mapping.findForward("failure");
}
}
}
}
在用来判断是否登录的jsp测试页面：
<%@ page language="java" pageEncoding="UTF-8"%>
<%@ page import="com.performance.entity.User"%>
<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html"%>
<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic"%>
<%@ taglib uri="http://struts.apache.org/tags-tiles" prefix="tiles"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html:html lang="true">
<head>
<html:base />
<title>super.jsp</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<link rel="stylesheet" type="text/css" href="format.css" />
</head>
<body>
<%
User user = (User) session.getAttribute("user");
if (user == null)
{
%>
<jsp:forward page="visitor.jsp" />
<%
}
if (user != null)
{
%>
欢迎超级管理员 ${requestScope.msg}.
<form action="findAllTuserInfo.do" method="post">
<input type="submit" value="showAllTuserInfo" name="showAllTuserInfo"><br>
<input type="button" value="addTuserInfo"
onclick="window.open('addTuserInfo.jsp')"> <br> <input
type="button" value="deleteTuserInfo"
onclick="window.open('deleteTuserInfo.jsp')"> <br> <input
type="button" value="addTuserInfo"
onclick="window.open('deleteTuserInfo.jsp')"> <br> <input
type="button" value="updateTuserInfo"
onclick="window.open('updateTuserInfo.jsp')"> <br> <input
type="button" value="nullifyTuserInfo"
onclick="window.open('nullifyTuserInfo.jsp')"> <br> <input
type="button" value="addTikey" onclick="window.open('addTikey.jsp')">
<br> <input type="button" value="deleteTikey"
onclick="window.open('deleteTikey.jsp')"><br> <input
type="button" value="updateTikey"
onclick="window.open('updateTikey.jsp')">
</form>
<%
}
%>
</body>
</html:html>
测试页面visitor.jsp:
<%@ page language="java" pageEncoding="UTF-8"%>
<head>
</head>
<body>
游客！<br>
<br>
<a href="login.jsp">登录</a>
<br>
</body>
</html:html>
Ps：另外一种方法：
步骤一：登录时，必须在登录页的ActionBean中进行记录User
User user = new User();
user.setId(id);
user.setPassword(password);
user.setUsertype(usertype);
request.getSession().setAttribute("user", user);
步骤二:在前台页面提交到的事物时进行判断，即为提交到的ActionBean中判断
User user=(User)request.getSession().getAttribute("user");
if(user == null)
{
return mapping.findforward("visitor");
}else
{
.....
.....
}
