登录页面js提示输入代码
1 <html> 2 <head> 3 4 <title>My JSP 'login.jsp' starting page</title> 5 <script language="javascript"> 6 function check(){ 7 var name = form1.Username.value; 8 var pwd = form1.Password.value; 9 var tp = form1.Type.value; 10 if(tp == ""){ 11 alert("请选择身份!"); 12 form1.Type.focus(); 13 return; 14 }else if((name=="") || (name == null)){ 15 alert("请输入帐号"); 16 form1.user.focus(); 17 return; 18 }else if((pwd == "") || (pwd == null)){ 19 alert("请输入密码"); 20 form1.pwd.focus(); 21 return; 22 }else{ 23 form1.submit(); 24 } 25 } 26 </script> 27 </head> 28 29 <body> 30 <form name="form1" method="post" action="GoLogin.action"> 31 <table width="300" border="1" bordercolor="#FFFFFF" cellspacing="0" cellpadding="0" 32 bordercolordark="#cccccc" bordercolorlight="#FFFFF"> 33 <tr> 34 <td height="30" colspan="2" bgcolor="#eeeeee">用户登录</td> 35 </tr> 36 <tr> 37 <td width="70" height="30">身份:</td> 38 <td> 39 <select name="Type"> 40 <option value="">请选择</option> 41 <option value="系统管理员">系统管理员</option> 42 <option value="楼宇管理员">楼宇管理员</option> 43 <option value="学生">学生</option> 44 </select> 45 </td> 46 </tr> 47 <tr> 48 <td width="70" height="30">帐号:</td> 49 <td width="162"><input name="Username" type="text" id="userName"/></td> 50 </tr> 51 <tr> 52 <td height="30">密 ; 码:</td> 53 <td><input name="Password" type="text" id="userPwd" /></td> 54 </tr> 55 <tr> 56 <td height="30" colspan="2" align="center"> 57 <input type="button" value="登录" onclick="return check()" /> 58 <input type="reset" value="重置" /> 59 60 </td> 61 </tr> 62 </table> 63 </form> 64 </body> 65 </html>