Jsp--tomcat-mysql Web page Removal

Deletestudentjsp.jsp page Code

<%@ page language= "java" contenttype= "text/html; charset=gb2312 "pageencoding= "UTF-8"%><! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "Http://www.w3.org/TR/html4/loose.dtd" >border-right: #89d4f8 1px solid;       Border-top: #89d4f8 1px solid; Border-left: #89d4f8 1px solid"cellspacing=0 cellpadding=70 align=center bgcolor= #ffffff border=0> <tbody> <tr> <td heigh t=26>&nbsp;&nbsp; Delete Student information </td> </tr> <tr> <td heigh T=1 bgcolor= #89d4f8 > </td> </tr> </tbody> </table> <!--post Data--<form name= "Messages" method= "POST" action= "after_deletestudent.jsp" > <table width= "a" lign= "center" border= "0" > <tr> <td height=26>&nbsp;&nbsp;&nbsp;</                  td> </tr> <tr> <td width= "267" > by school Number removed: </td>               <td><input type= "text" name= "Stuid" ></td> </tr> <TR>           &LT;TD width= "" ></td> <td><input type= "Submit" value= "Delete" ></td>      </TR>   </table> </form></body>
after_deletestudent.jsp Code
<%@ page language= "Java"Import= "Java.util.*"Import= "Com.mysql.jdbc.Driver"Import= "Java.sql.*"ContentType= "text/html;charset=gb2312"pageencoding= "UTF-8"%><! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "Http://www.w3.org/TR/html4/loose.dtd" >Connection Conn;       Statement Stat; //set the URL of the connection, where student is the database nameString url= "Jdbc:mysql://localhost:3306/student"; //I am using the free install version of MySQL, User: root, Password: ZhangweijieString username= "Root"; String Password= "Zhangweijie"; //get deletestudentjsp.jsp page post come on Stuid        intStuid=integer.parseint (Request.getparameter ("Stuid")); Try{       //registering the JDBC driverClass.forName ("Com.mysql.jdbc.Driver"); }       Catch(ClassNotFoundException ex) {out.println ("Driver not Found!" "); }       //Open a database connectionConn=drivermanager.getconnection (URL, userName, password); Try{stat=conn.createstatement (); //perform a delete operation           intIsok=stat.executeupdate ("Delete from Student_info where stuid=" +stuid+ ""); if(isok>0) {out.println ("Delete succeeded!" "); }       }       Catch(SQLException ex) {out.println ("Delete failed!" "); }              finally{conn.close (); }        %> </body>