asked on

Whre to put <a href ...>

This is jsp code for vol2.jsp

<%@ page import="java.sql.*, com.dhal.*"%>

<jsp:useBean id="vol" class="com.dhal.volun" scope="session"/>
<jsp:setProperty name="vol" property="*"/>

<Html>
<body>
<form action="vol.jsp...>
......
<% database queries.....%>
<input type="submit" value="Update">

</form>

When the user presses the update, it needs to go to vol.jsp
where do i put
<a href= ? >so that it would go to vol.jsp

ASKER CERTIFIED SOLUTION

TimYates

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Jasbir21

ASKER

The vol2.jsp code:
<%@ page import="java.sql.*, com.dhal.*"%>

<jsp:useBean id="vol" class="com.dhal.volun" scope="session"/>
<jsp:setProperty name="vol" property="*"/>

<Html>
<body>

<%
String connectionURL = "jdbc:mysql://localhost:3306/mydatabase?user=;password=";
Connection connection = null;
ResultSet rs=null;
ResultSet rs1=null;
Statement statement=null;
String username=null;
String passwd=null;
String verify=null;
String name=null;
String education=null;
String city=null;
String state=null;
String post=null;
String qualify=null;
String house1=null;
String house2=null;
String office1=null;
String office2=null;
String mobile1=null;
String mobile2=null;
String email=null;
String notify=null;
String add1=null;
String add2=null;

Statement statement1=null;

try
{

Class.forName("com.mysql.jdbc.Driver").newInstance();
connection = DriverManager.getConnection(connectionURL, "", "");
statement=connection.createStatement();
String myquery="select * from accou where username='jasbir22'";
rs=statement.executeQuery(myquery);

boolean anyRecords=rs.next();

String query="select * from my where username='jasbir22'";
statement1=connection.createStatement();
rs1=statement1.executeQuery(query);
boolean any=rs1.next();

if(rs1.getString(1).trim().equals(rs.getString(1).trim()))
{

name=rs1.getString(2).trim();
education=rs1.getString(3).trim();
city=rs1.getString(4).trim();
state=rs1.getString(5).trim();
post=rs1.getString(6).trim();
qualify=rs1.getString(7).trim();
house1=rs1.getString(8).trim();
house2=rs1.getString(9).trim();
office1=rs1.getString(10).trim();
office2=rs1.getString(11).trim();
mobile1=rs1.getString(12).trim();
mobile2=rs1.getString(13).trim();
email=rs1.getString(14).trim();
notify=rs1.getString(15).trim();
add1=rs1.getString(16).trim();
add2=rs1.getString(17).trim();

username=rs.getString(1).trim();
passwd=rs.getString(2).trim();
verify=rs.getString(3).trim();

}

}
catch(SQLException ex )
{
ex.printStackTrace() ;
}
catch( ClassNotFoundException ex )
{
ex.printStackTrace() ;
}
finally
{
try { if( rs != null ) rs.close() ; } catch( Exception ex ) {ex.printStackTrace() ;}
// try { if( prep1 != null ) prep1.close() ; } catch( Exception ex ) {ex.printStackTrace() ;}
try { if( rs1 != null ) rs1.close() ; } catch( Exception ex ) {ex.printStackTrace() ;}
try { if( connection != null ) connection.close() ; } catch( Exception ex ) {ex.printStackTrace() ;}
}

%>

<%
//String connectionURL = "jdbc:mysql://localhost:3306/mydatabase?user=;password=";
//Connection connection = null;
PreparedStatement prep1=null;

try
{
passwd=vol.getPasswd();
verify=vol.getVerifypwd();
Class.forName("com.mysql.jdbc.Driver").newInstance();
connection = DriverManager.getConnection(connectionURL, "", "");

String y="update accou set " +"password='"+passwd+"'," + "verifypassdword='" +verify+"' " +
"where username='"+username+"'";

prep1=connection.prepareStatement(y);
prep1.executeUpdate();

S
}

catch(SQLException ex )
{
ex.printStackTrace() ;
}
catch( ClassNotFoundException ex )
{
ex.printStackTrace() ;
}
finally
{
//try { if( rs != null ) rs.close() ; } catch( Exception ex ) {ex.printStackTrace() ;}
try { if( prep1 != null ) prep1.close() ; } catch( Exception ex ) {ex.printStackTrace() ;}
//try { if( rs1 != null ) rs1.close() ; } catch( Exception ex ) {ex.printStackTrace() ;}
try { if( connection != null ) connection.close() ; } catch( Exception ex ) {ex.printStackTrace() ;}
}

%>
<table border="4" BGColor="#FFF8DC" width="100%">
<tr>
<td>
<Font Color="#000000" Face="Garamond" Size="4">
<b>ACCOUNT INFORMATION</b>
</Font>
</td>
</tr>
</table>
<br>
<form action="vol2.jsp" method="post">
<Font Size="4 Color="Black" Face="Garamond" Align="Center">

<br>
Username :

<input type="text" name="username" value=<%=username%> size=20 /><br>

Password :
<input type="password" name="passwd" value=<%=passwd%> size=20/><br>

Verify Password :
<input type="password" name="verifypwd" value=<%=verify%> size=20/> <br>

<input type="submit" value="Submit">

</form>
</Font>

</body>

<html>

The vol.jsp<%@ page import="java.sql.*"%>
<Html>
<body>

<%
String connectionURL = "jdbc:mysql://localhost:3306/mydatabase?user=;password=";
Connection connection = null;

PreparedStatement prep1;
prep1=null;
ResultSet rs=null;
ResultSet rs1=null;
Statement statement=null;
String username=null;
String passwd=null;
String verify=null;
String name=null;
String education=null;
String city=null;
String state=null;
String post=null;
String qualify=null;
String house1=null;
String house2=null;
String office1=null;
String office2=null;
String mobile1=null;
String mobile2=null;
String email=null;
String notify=null;
String add1=null;
String add2=null;

Statement statement1=null;

try
{

Class.forName("com.mysql.jdbc.Driver").newInstance();
connection = DriverManager.getConnection(connectionURL, "", "");
statement=connection.createStatement();
String myquery="select * from accou where username='jasbir22'";
rs=statement.executeQuery(myquery);

boolean anyRecords=rs.next();

String query="select * from my where username='jasbir22'";
statement1=connection.createStatement();
rs1=statement1.executeQuery(query);
boolean any=rs1.next();

if(rs1.getString(1).trim().equals(rs.getString(1).trim()))
{
name=rs1.getString(2).trim();
education=rs1.getString(3).trim();
city=rs1.getString(4).trim();
state=rs1.getString(5).trim();
post=rs1.getString(6).trim();
qualify=rs1.getString(7).trim();
house1=rs1.getString(8).trim();
house2=rs1.getString(9).trim();
office1=rs1.getString(10).trim();
office2=rs1.getString(11).trim();
mobile1=rs1.getString(12).trim();
mobile2=rs1.getString(13).trim();
email=rs1.getString(14).trim();
notify=rs1.getString(15).trim();
add1=rs1.getString(16).trim();
add2=rs1.getString(17).trim();

username=rs.getString(1).trim();

passwd=rs.getString(2).trim();
System.out.println(passwd);
verify=rs.getString(3).trim();

}

}
catch(SQLException ex )
{
ex.printStackTrace() ;
}
catch( ClassNotFoundException ex )
{
ex.printStackTrace() ;
}
finally
{
try { if( rs != null ) rs.close() ; } catch( Exception ex ) {ex.printStackTrace() ;}
try { if( prep1 != null ) prep1.close() ; } catch( Exception ex ) {ex.printStackTrace() ;}
try { if( rs1 != null ) rs1.close() ; } catch( Exception ex ) {ex.printStackTrace() ;}
try { if( connection != null ) connection.close() ; } catch( Exception ex ) {ex.printStackTrace() ;}
}

%>

Username : <%=username%><p/>
Password : <%=passwd%><p/>
Verify Password : <%=verify%>
<p/>
Name : <%=name%><p/>
Education : <%=education%></p>
City : <%=city%></p>
State : <%=state%></p>
Qualification : <%=qualify%></p>

Phone (H) : <%=house1%>  <%=house2%></p>

Phone (O) : <%=office1%>  <%=office2%></p>

Handphone : <%=mobile1%>  <%=mobile2%></p>

Email :<%=email%></p>

Notification :<%=notify%></p>

Address : <%=add1%></p>
<%=add2%>

</Body>
</html>

Thanks

TimYates

Errr...yes....that's fine...

What's wrong with it? vol2 will post the form to vol

Then in vol, you can get the values out with:

request.getParameter( "username" ) ;

etc

Jasbir21

ASKER

Tim,
I got one more question to ask,

i don't know what's wrong with this statement:

String y="update accou set " +"password='"+passwd+"'," + "verifypassdword='" +verify+"' " +
"where username='"+username+"'";

Thanks

Jasbir21

ASKER

I get it , put the action in the form , i thought you meant post the vol codes.

Could you pls look at the sql statement, really don't know what's wrong
Thanks

TimYates

Should be ok, so long as the username or password doesn't include ' chars

Have you considered PreparedStatements?

Much easier for this sort of thing...

And the string looks nicer like:

String y = "update accou set password='" + passwd + "', verifypassdword='" +verify+ "' where username='" + username + "'" ;

TimYates

Change:

try
{
passwd=vol.getPasswd();
verify=vol.getVerifypwd();
Class.forName("com.mysql.jdbc.Driver").newInstance();
connection = DriverManager.getConnection(connectionURL, "", "");

String y="update accou set " +"password='"+passwd+"'," + "verifypassdword='" +verify+"' " +
"where username='"+username+"'";

prep1=connection.prepareStatement(y);
prep1.executeUpdate();

S
}

to:

try
{
passwd=vol.getPasswd();
verify=vol.getVerifypwd();
Class.forName("com.mysql.jdbc.Driver").newInstance();
connection = DriverManager.getConnection(connectionURL, "", "");

String y = "update accou set password=?, verifypassdword=? where username=?" ;

prep1=connection.prepareStatement( y );
prep1.setString( 1, passwd ) ;
prep1.setString( 2, verify ) ;
prep1.setString( 3, username ) ;
prep1.executeUpdate();
}

Jasbir21

ASKER

Hi,

I guess i did something wrong, i didn't get any errors but the data is not updating..

TimYates

Any stack traces being output in the log files?

Jasbir21

ASKER

Surprisingly no,

it is as if the code the understand which user i am pointing to

TimYates

can you post your updating code?

(vol.jsp)?

Jasbir21

ASKER

I tried something, i changed:

<form action="vol.jsp">

to

<form action="vol2.jsp">

meaning that after pressing the submit , i call the same page back and not vol.jsp,suprisingly it gets updated,
but then how do i call vol.jsp

user would use vol2.jsp to input data

the vol.jsp code just shows the data inputed:
<%@ page import="java.sql.*"%>
<Html>
<body>

<%
String connectionURL = "jdbc:mysql://localhost:3306/mydatabase?user=;password=";
Connection connection = null;

PreparedStatement prep1;
prep1=null;
ResultSet rs=null;
ResultSet rs1=null;
Statement statement=null;
String username=null;
String passwd=null;
String verify=null;
String name=null;
String education=null;
String city=null;
String state=null;
String post=null;
String qualify=null;
String house1=null;
String house2=null;
String office1=null;
String office2=null;
String mobile1=null;
String mobile2=null;
String email=null;
String notify=null;
String add1=null;
String add2=null;

Statement statement1=null;

try
{

Class.forName("com.mysql.jdbc.Driver").newInstance();
connection = DriverManager.getConnection(connectionURL, "", "");
statement=connection.createStatement();
String myquery="select * from accou where username='jasbir22'";
rs=statement.executeQuery(myquery);

boolean anyRecords=rs.next();

String query="select * from my where username='jasbir22'";
statement1=connection.createStatement();
rs1=statement1.executeQuery(query);
boolean any=rs1.next();

if(rs1.getString(1).trim().equals(rs.getString(1).trim()))
{
name=rs1.getString(2).trim();
education=rs1.getString(3).trim();
city=rs1.getString(4).trim();
state=rs1.getString(5).trim();
post=rs1.getString(6).trim();
qualify=rs1.getString(7).trim();
house1=rs1.getString(8).trim();
house2=rs1.getString(9).trim();
office1=rs1.getString(10).trim();
office2=rs1.getString(11).trim();
mobile1=rs1.getString(12).trim();
mobile2=rs1.getString(13).trim();
email=rs1.getString(14).trim();
notify=rs1.getString(15).trim();
add1=rs1.getString(16).trim();
add2=rs1.getString(17).trim();

username=rs.getString(1).trim();

passwd=rs.getString(2).trim();
System.out.println(passwd);
verify=rs.getString(3).trim();

}

}
catch(SQLException ex )
{
ex.printStackTrace() ;
}
catch( ClassNotFoundException ex )
{
ex.printStackTrace() ;
}
finally
{
try { if( rs != null ) rs.close() ; } catch( Exception ex ) {ex.printStackTrace() ;}
try { if( prep1 != null ) prep1.close() ; } catch( Exception ex ) {ex.printStackTrace() ;}
try { if( rs1 != null ) rs1.close() ; } catch( Exception ex ) {ex.printStackTrace() ;}
try { if( connection != null ) connection.close() ; } catch( Exception ex ) {ex.printStackTrace() ;}
}

%>

Username : <%=username%><p/>
Password : <%=passwd%><p/>
Verify Password : <%=verify%>
<p/>
Name : <%=name%><p/>
Education : <%=education%></p>
City : <%=city%></p>
State : <%=state%></p>
Qualification : <%=qualify%></p>

Phone (H) : <%=house1%>  <%=house2%></p>

Phone (O) : <%=office1%>  <%=office2%></p>

Handphone : <%=mobile1%>  <%=mobile2%></p>

Email :<%=email%></p>

Notification :<%=notify%></p>

Address : <%=add1%></p>
<%=add2%>

</Body>
</html>

TimYates

oh...

vol doesn't do any updating in it... you do the update in vol2...

I would add a bit to vol2

get the form to post to vol2

and after you do the update, do:

response.sendRedirect( "vol.jsp" ) ;

Jasbir21

ASKER

Hi,
When i put the line, it automatically redirects to vol.jsp.
But I need to redirect it only after, the user presses the submit button because, then only i can enter the changes(update S) and then press submit,

Thanks

TimYates

put a hidden value into the form:

<form action="vol2.jsp">
<input type="hidden" name="posted" value="yes">
...rest of your form...
</form>

then, only redirect (and do the update) if this value exists;

if( request.getParameter( "posted" ) != null )
{
// form was posted!! Not just a click!!

Jasbir21

ASKER

Wow,it s working, thanks so much,
I would learn more on hidden type,it is very interesting .

Thanks again

Whre to put &lt;a href ...&gt;

Whre to put <a href ...>