登入流程:login.jsp--->check.jsp--->ok.jsp或fail.jsp
check.jsp使用ChkLogin.java這支程式。
login.jsp
<%@ page contentType="text/html; charset=utf-8" language="java" import="java.sql.*" errorPage="" %>
<!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>無標題文件</title>
</head>
<body>
<form id="form1" name="form1" method="post" action="check.jsp">
<p>
<label for="username">帳號:</label>
<input type="text" name="username" id="username" value="${cookie.username.value}"/>
</p>
<p>密碼:
<input type="password" name="password" id="password" />
</p>
<p>
<input type="submit" name="button" id="button" value="送出" />
</p>
</form>
</body>
</html>
check.jsp
<%@ page contentType="text/html; charset=utf-8" language="java" import="java.sql.*" errorPage="" %>
<jsp:useBean id="objCheck" scope="page" class="t0915.ChkLogin" />
<jsp:setProperty name="objCheck" property="userName" param="username" />
<jsp:setProperty name="objCheck" property="pwd" param="password" />
<%
if (objCheck.check())
{
session.setAttribute("login", "ok");
session.setAttribute("username", objCheck.getUserName());
Cookie myCookie = new Cookie("username", objCheck.getUserName());
myCookie.setMaxAge(60);
response.addCookie(myCookie);
response.sendRedirect("ok.jsp");
}
else
{
response.sendRedirect("fail.jsp");
}
%>
ChkLogin.java
package t0915;
public class ChkLogin {
private String name;
private String pwd;
public ChkLogin()
{
}
public void setUserName(String u)
{
name = u;
}
public String getUserName()
{
return name;
}
public void setPwd(String p)
{
pwd = p;
}
public String getPwd()
{
return pwd;
}
public boolean check()
{
if (name.equals("abc") && pwd.equals("123"))
return true;
else
return false;
}
}
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