hi,
i am new to jsp..i am trying do sort out a pblm..
i have 2 jsp files..

file1.jsp..
which is used to select all the records from a table called staff and display the records in a table..each record is coming with a check boxes which is used for marking..

i need to select all the records i want to delete and by pressing a submit button i want to delte all the records frm the table..
how is it possible..i wrote the code for the first part..it is like..

page1.jsp

<html>
<body>

<table width="50%" border="1" rules=ALL>
<tr><th> Username</th><th>Access Level</th><th>Delete</th></tr>
<%@ page language="java" import="java.sql.*" %>
<%
int j=0;
Connection con =null;
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
con=DriverManager.getConnection("jdbc:odbc:udsn","","");
Statement st=con.createStatement();
ResultSet rs=st.executeQuery("select * from staff");

while (rs.next())
{ j=j+1;%>
<tr><td align="center"><%=rs.getString(1)%></td><td align="center"><%=rs.getString(3)%></td><td><input type="checkbox" name="delete" value="yes"></tr>


<%}

%> 
<form action="deleteuser.jsp">
<input type="hidden" name="recordcount" value="<%=j%>">
<input type="submit" name="b1" value="Delete" >
</table>
</form>
</body>
</html>

how to do the second part...any one to help me plzzzz....

JSP is for presentation only (meaning to provide interface for web page), servlet is proper component to setup connection with database. So the process should be as follows

  1. JSP - to collect data
  2. Servlet - execute logic
    • Data retrival
    • Validation
    • Connection to DB
    • Retriving any data from DB
    • Possibly saving in session
  3. JSP - to display outcome

Validation also can be done on the JSP befor submit, but then you have to know JavaScript or similar

<html>
<body>

      <table width="50%" border="1" rules=ALL>

      <tr><th> Username</th><th>Access Level</th><th>Delete</th></tr>

      <%@ page language="java" import="java.sql.*" %>

      <%

      int j=0;

      Connection con =null;

      Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

      con=DriverManager.getConnection("jdbc:odbc:udsn","","");

      Statement st=con.createStatement();

      ResultSet rs=st.executeQuery("select * from staff");

       

      while (rs.next())

      { j=j+1;%>

      <tr><td align="center"><%=rs.getString(1)%></td><td align="center"><%=rs.getString(3)%></td><td><input type="checkbox" name="delete" value="yes"></tr>

      <%}

      %>

      <form action="deleteuser.jsp">

      <input type="hidden" name="recordcount" value="<%=j%>">

      <input type="submit" name="b1" value="Delete" >

      </table>

      </form>

      </body>

      </html>

<html> <body> <table width="50%" border="1" rules=ALL> <tr><th> Username</th><th>Access Level</th><th>Delete</th></tr> <%@ page language="java" import="java.sql.*" %> <% int j=0; Connection con =null; Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); con=DriverManager.getConnection("jdbc:odbc:udsn","",""); Statement st=con.createStatement(); ResultSet rs=st.executeQuery("select * from staff"); while (rs.next()) { j=j+1;%> <tr><td align="center"><%=rs.getString(1)%></td><td align="center"><%=rs.getString(3)%></td><td><input type="checkbox" name="delete" value="yes"></tr> <%} %> <form action="deleteuser.jsp"> <input type="hidden" name="recordcount" value="<%=j%>"> <input type="submit" name="b1" value="Delete" > </table> </form> </body> </html>
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