第八周jsp
1.
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>登录界面 index.jsp</title>
</head>
<body>
<form action="pan.jsp" name="form1">
用户名：<input type="text" name="name"><br> <br> 密码：<input
type="password" value="12345" name="password"><br> <br>
<input type="button" value="登录" name="d" onclick="fu()">
</form>
<script type="text/javascript">
function fu() {
if (form1.name.value == "") {
alert("账号不能为空");
return;
}
if (form1.password.value == "") {
alert("密码不能为空");
return;
}
form1.submit();
}
</script>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>界面pan.jsp</title>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
String name = request.getParameter("name");
String password = request.getParameter("password");
if (name.equals(password)) {
session.setAttribute("name", name);
request.getRequestDispatcher("y.jsp")
.forward(request, response);
} else {
request.getRequestDispatcher("no.jsp").forward(request,
response);
}
%>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>登录成功界面y.jsp</title>
</head>
<body>
<%
String name = (String) session.getAttribute("name");
if (name == null) {
response.sendRedirect("index.jsp");
}
%>
欢迎你<%=name%><br>
<br>
<form action="tui.jsp">
<input type="submit" value="退出登录">
</form>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>登录失败界面no.jsp</title> </head> <body>登录失败！ </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>退出界面tui.jsp</title>
</head>
<body>
<%
session.invalidate();
response.setHeader("refresh", "0;url=index.jsp");
%>
</body>
</html>
2..
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html>
<head>
<title>My JSP 'main.jsp' starting page</title>
</head>
<body>
<h1>登陆成功！</h1>
<%
String uname = (String) session.getAttribute("uname");
if (uname == null)
response.sendRedirect("login.jsp");
%>
<form action="show.jsp" method="post">
商品：<br> <br>
草莓 9.30<input type="checkbox" name="item" value="草莓">加入购物车 <br>
梨 4.25 <input type="checkbox" name="item" value="梨"> 加入购物车 <br>
香蕉 3.30<input type="checkbox" name="item" value="香蕉"> 加入购物车<br><br>
<input type="submit" value="加入购物车">
</form>
<form name="form1" action="logout.jsp" method="post">
<input type="submit" value="退出登录">
</form>
</body></html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html>
<head>
<title>My JSP 'show.jsp' starting page</title>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
String itemName[]=request.getParameterValues("item");
if(itemName==null){
out.print("未添加购物车");
}
else{
for(int i=0;i<itemName.length;i++){
out.print("("+(i+1)+")"+itemName[i]+"<br>");
}
}
%>
</body></html>
浙公网安备 33010602011771号