JSP Response. Addcookie() method: add cookie object
•
Java
addCookie(Cookie cookie)
Example
<% Cookie cookie = new Cookie("user","lzw"); response.addCookie(cookie); %>
Typical application
<body> <% request.setCharacterEncoding("GBK"); String name = request.getParameter("name");//获取页面中提交的表单信息 String hobby = request.getParameter("hobby"); Cookie cookies[] = request.getCookies();//获取cookie对象 if(cookies!=null){//判断cookie对象是否为空 for(int i=0;i<cookies.length;i++){ if(cookies[i].getName().equals("name")){//判断指定对象是否为空 name = cookies[i].getValue(); } } }else if(name!=null){ Cookie c = new Cookie("name",name);//创建cookie对象 c.setMaxAge(50); response.addCookie(c); } if(cookies!=null){ for(int i=0;i<cookies.length;i++){ if(cookies[i].getName().equals("hobby")) hobby=cookies[i].getValue(); } }else if(name!=null){ Cookie c=new Cookie("hobby",hobby); response.addCookie(c);//添加cookie对象 } %> <p>保存数据到cookie的测试</p> <form action="index.jsp" method="post"> 姓名:<input type="text" name="name" value="<%if(name!=null)out.println(name); %>"><%--如果cookie中保存了相关信息,在页面中显示--%> 兴趣:<input type="text" name="hobby" value="<%if(hobby!=null)out.println(hobby);%>"> <input type="submit" value="保存"> </form> 你的名字是:<%if(name!=null)out.println(name);%> 你的兴趣是:<%if(hobby!=null)out.print(hobby);%> </body>
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