JAVA EE之Cookie记住我

1：form

    

        Name
        
    
    

        Password
        
    
    

        
        Remember Me
    
    Log In

2: servlet

//接收form传来的记住我
String remember=req.getParameter("ok");
//创建一个cookie，存放制定值
Cookie nameCookie = new Cookie("username", username);
Cookie passwordCookie = new Cookie("password", password);
//设置失效时间
if (null!=remember && "ok".equals(remember)){
    nameCookie.setMaxAge(7*24*60*60);
    passwordCookie.setMaxAge(7*24*60*60);
}else {
    nameCookie.setMaxAge(0);
    passwordCookie.setMaxAge(0);
}
//将Cookie存放到response中
resp.addCookie(nameCookie);
resp.addCookie(passwordCookie);

3：jsp

    <%
        String username = "";
        String password = "";
        Cookie [] cookies = request.getCookies();
        for (int i = 0; i 

 

设置form中的value="<%=username%"   value="<%=password%>"