日期:2014-05-18 浏览次数:20785 次
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>无标题文档</title> <script type="text/javascript"> var userName = document.getElementById("userName"); var password = document.getElementById("password"); function check() { if(userName.value == "") { alert("用户名不能为空!"); return false; } if(password.value == "") { alert("密码不能为空"); return false; } if(userName.value.length<4||userName.length>10) { alert("用户名长度要在4到10之间"); return false; } if(password.value.length<4||password.length>10) { alert("密码长度要在4到10之间"); return false; } return true; } </script> </head> <body> <form action="#" method="post" onsubmit="return check()"> 用户名: <input type="text" name="userName" id="userName" /> <br /> 密 码: <input type="password" name="password" id="password" /> <br /> 性 别: <input type="radio" name="sex" value="1" /> 男 <input type="radio" name="sex" value="0" /> 女<br /> 兴 趣: 足球 <input type="checkbox" name="checkbox" value="0" /> 篮球 <input type="checkbox" name="checkbox" value="1" /> 排球 <input type="checkbox" name="checkbox" value="2" /> 羽毛球 <input type="checkbox" name="checkbox" value="3" /> <br /> 地 址: <select name="select"> <option value="0" selected="selected">北京</option> <option value="1">上海</option> <option value="3">陕西</option> </select><br /> <input type="submit" value="点击确认" name="button1" /> <input type="reset" value="重置" name="button2" /> </form> </body> </html>
var userName = document.getElementById("userName"); var password = document.getElementById("password");