1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 5 <title>无标题文档</title> 6 <script src="jq.js"></script> 7 </head> 8 9 <body> 10 <h1>登录</h1> 11 12 <div>用户名：</div> 13 <input type="text" id="uid" /> 14 <div>密码：</div> 15 <input type="text" id="pwd" /> 16 <input type="button" value="确定" id="dian" /> 17 18 </body> 19 </html> 20 <script type="text/javascript"> 21 22 $(document).ready(function(e) { 23 $("#dian").click(function(){ 24 25 var uid=$("#uid").val(); 26 var pwd=$("#pwd").val(); 27 28 $.ajax({ 29 30 url:"chuli.php", 31 data:{u:uid,p:pwd}, 32 type:"POST", 33 dataType:"TEXT", 34 success: function(data){ 35 36 if(data=="ok") 37 { 38 window.location="Main.php"; 39 40 } 41 else 42 { 43 alert(data); 44 } 45 46 } 47 48 }); 49 50 51 }) 52 53 }); 54 55 56 57 58 </script>
1 <?php 2 3 $uid=$_POST["u"]; 4 $pwd=$_POST["p"]; 5 6 include("DBDA.php"); 7 8 $db=new DBDA(); 9 10 $sql=" select count(*) from login where username='{$uid}'and password='{$pwd}'"; 11 $attr=$db->Query($sql); 12 if($attr[0][0]==0) 13 { 14 15 echo "用户名密码不正确"; 16 } 17 else 18 { 19 echo "ok"; 20 }