<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
<%!
String uname;
String upwd;
%>
<%
Cookie[] cookies=request.getCookies();//获取所有的cookies
for(Cookie cookie:cookies){
//找到uname的cookie
if(cookie.getName().equals("uname")){
uname=cookie.getValue();
}
//找到upwd的cookie
if(cookie.getName().equals("upwd")){
upwd=cookie.getValue();
}
}
%>
<form action="check.jsp" method="post">
用户名：<input type="text" name="uname" value="<%=(uname==null?"":uname)%>"><br/>//该框中的值是保存在value中的
密码：<input type="text" name="upwd" value="<%=(upwd==null?"":upwd)%>"><br/>
<input type="submit" value="登录"><br/>
</form>
</body>
</html>
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
String name=request.getParameter("uname");
String pwd=request.getParameter("upwd");
//将用户名加入到cookie
Cookie cookie1=new Cookie("uname",name);//建议cookie中只保存英文和数字否则涉及到编码问题
Cookie cookie2=new Cookie("upwd",pwd);
response.addCookie(cookie1);
response.addCookie(cookie2);
response.sendRedirect("result.jsp");//cookies也随之返回到了客户端所以在login界面可以用到
%>
</body>
</html>