mySQLnewbie
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| Posted: 05/18/2005, 1:51 AM |
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I'm trying to test my connection to the mysql driver, and i keep getting this message:
when i execute with the command line:
java Jdbc11 , i get this
Exception in thread "main" java.lang.NoClassDefFounfError: Jdbc11
and when i execute the same program with this command line :
java -cp .;\C:\mennen\downloads\connectorJ\mysql-connector-java-3.1.8a.jar Jdbc11 , i get:
ClassNotFoundException: com.mysql.jdbc.Driver
Jdbc11.java compiles ok.
I'm using
j2sdk1.4.2_08
mysql-connector-java-3.1.8a.tar
mysql-essential-4.1.11-win32
Wind XP
path = %SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;C:\Program Files\Fichiers communs\Adaptec Shared\System;C:\Program Files\MySQL\MySQL Server 4.1\bin;%JAVA_HOME%\bin
where JAVA_HOME = "C:\j2sdk1.4.2_08"
and i also created a variable CLASSPATH = "C:\mennen\downloads\connectorJ\mysql-connector-java-3.1.8a.tar"
I also put the mysql-connector-java-3.1.8a.tar in the C:\j2sdk1.4.2_08\jre\lib\ext directory.
I've tried a lot of things i've read on forums, but it just doesn't wanna work
I also tried executing it with
java -cp .;\C:\mennen\downloads\connectorJ\mysql-connector-java-3.1.8a.jar Jdbc11
but it still won't work!
Here is Jdbc11.java
_____________________________________________________________________
import java.sql.*;
public class Jdbc11 {
public static void main(String args[]){
System.out.println(
"Mennen ELKALYOUBI testing..");
try {
Class.forName("com.mysql.jdbc.Driver");
String url = "jdbc:mysql://localhost:3306/mysql";
Connection con =DriverManager.getConnection(url,"root", "mennen"); //mennen is the password i use when i log onto mysql
System.out.println("URL: " + url);
System.out.println("Connection: " + con);
con.close();
}
catch (java.lang.ClassNotFoundException e) {
System.err.print("ClassNotFoundException: ");
System.err.println(e.getMessage());
}}
___________________________________________________________________
Please help!!
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Jonathan Balinski
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| Posted: 06/13/2005, 9:00 PM |
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Have you imported your MySQL jdbc driver library into your project?
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eserver221
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| Posted: 06/13/2005, 9:42 PM |
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Quote mySQLnewbie:
I'm trying to test my connection to the mysql driver, and i keep getting this message:
when i execute with the command line:
java Jdbc11 , i get this
Exception in thread "main" java.lang.NoClassDefFounfError: Jdbc11
and when i execute the same program with this command line :
java -cp .;\C:\mennen\downloads\connectorJ\mysql-connector-java-3.1.8a.jar Jdbc11 , i get:
ClassNotFoundException: com.mysql.jdbc.Driver
Jdbc11.java compiles ok.
I'm using
j2sdk1.4.2_08
mysql-connector-java-3.1.8a.tar
mysql-essential-4.1.11-win32
Wind XP
path = %SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;C:\Program Files\Fichiers communs\Adaptec Shared\System;C:\Program Files\MySQL\MySQL Server 4.1\bin;%JAVA_HOME%\bin
where JAVA_HOME = "C:\j2sdk1.4.2_08"
and i also created a variable CLASSPATH = "C:\mennen\downloads\connectorJ\mysql-connector-java-3.1.8a.tar"
I also put the mysql-connector-java-3.1.8a.tar in the C:\j2sdk1.4.2_08\jre\lib\ext directory.
I've tried a lot of things i've read on forums, but it just doesn't wanna work
I also tried executing it with
java -cp .;\C:\mennen\downloads\connectorJ\mysql-connector-java-3.1.8a.jar Jdbc11
but it still won't work!
Here is Jdbc11.java
_____________________________________________________________________
import java.sql.*;
public class Jdbc11 {
public static void main(String args[]){
System.out.println(
"Mennen ELKALYOUBI testing..");
try {
Class.forName("com.mysql.jdbc.Driver");
String url = "jdbc:mysql://localhost:3306/mysql";
Connection con =DriverManager.getConnection(url,"root", "mennen"); //mennen is the password i use when i log onto mysql
System.out.println("URL: " + url);
System.out.println("Connection: " + con);
con.close();
}
catch (java.lang.ClassNotFoundException e) {
System.err.print("ClassNotFoundException: ");
System.err.println(e.getMessage());
}}
___________________________________________________________________
Please help!!
It should be c:\menne not \c:\mennen
java -cp .;\C:\mennen\downloads\connectorJ\mysql-connector-java-3.1.8a.jar Jdbc11
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Jagannath
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| Posted: 07/20/2005, 11:47 PM |
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import javax.swing.*;
import java.sql.*;
import java.awt.event.*;
import java.awt.*;
import java.*;
import javax.sql.*;
import java.io.*;
/*<applet code=vish height=500 width=500></applet>*/
public class vish extends JApplet implements ActionListener
{
JPanel p;
JLabel l1,l2,l3;
JTextField t1,t2,t3,t4;
JButton b1,b2;
public void init()
{
p = new JPanel();
l1 = new JLabel("Account id");
l1 = new JLabel("Transaction Type");
l1 = new JLabel("Amount");
t1 = new JTextField(15);
t2 = new JTextField(15);
t3 = new JTextField(15);
t4 = new JTextField(15);
b1 = new JButton("Display");
b2 = new JButton("Clear");
p.setLayout(null);
getContentPane().add(p);
l1.setBounds(10,10,120,25);
t1.setBounds(140,10,120,25);
l2.setBounds(10,45,120,25);
t2.setBounds(140,45,120,25);
l3.setBounds(10,70,120,25);
t3.setBounds(140,70,120,25);
t4.setBounds(10,100,120,25);
b1.setBounds(10,130,120,25);
b2.setBounds(140,130,120,25);
p.add(l1);
p.add(l1);
p.add(l1);
p.add(t1);
p.add(t2);
p.add(t3);
p.add(t4);
p.add(b1);
p.add(b2);
b1.addActionListener(this);
b2.addActionListener(this);
}
public void actionPerformed (ActionEvent et)
{
String s= et.getActionCommand();
String cc= t4.getText();
{
if(s.equals("Display"))
{
try
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection c=DriverManager.getConnection("jdbc:ms
access:Driver={Microsoft Access Driver (pan*.mdb}));
Statement st = c.createStatement();
ResultSet r = st.executeQuery("select * from sa where acid =
'"+cc+"'");
if(r.next ()==false);
{
getAppletContext().showStatus("Record Not Found");
}
else
{
t1.setText(r.getString(1));
t2.setText(r.getString(2));
t3.setText(String.valueOf(r.getInt(4)));
}
}
catch(Exception e)
{
System.out.println(e);
}
}
else
{
t1.setText("");
t2.setText("");
t3.setText("");
t4.setText("");
}
}
}
}
I have Ms Access but i dont know how get Connection with Ms Access
Please send on my email
Thank You
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shyam
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| Posted: 08/19/2005, 10:13 PM |
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kindly give me the sample code for mysql with java connection under linux platform
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