Cookie技术实现免用户名和密码自动登录功能

String password = null;

Cookie[] cookies = request.getCookies();

if (cookies!=null){

//遍历Cookie

for (Cookie cookie : cookies) {

if (“username”.equals(cookie.getName())){

username = cookie.getValue();

out.print(“用户名:”+username+“”);

}

if (“password”.equals(cookie.getName())){

password = cookie.getValue();

out.print(“密码:”+password+“”);

}

}

//将用户名添加到session域中

request.getSession().setAttribute(“username”,username);

if (“root”.equals(username) && “root”.equals(password)){

response.sendRedirect(“welcome.jsp”);

}

}

%>

Cookie免密登录

账号:

密码:

Servlet代码：

package servlet;

import