Thanks for this tutorial. I was completely at a loss as to how to establish the connection in the first place, and this has been a huge help. :-) Now to get on with writing the queries...
i tried this code & i got a ClassNotFoundException.i had mysql installed on my system(mysql Ver 14.14 Distrib 5.1.41) & i uses eclipse for java coding.Please tell me how can i get a connection to DB? whether any additional installation is needed for to get the connection(in Ubuntu)?
Thanks. but i could not run this code. it compiles alright with the credentials for my database but can not run. i get java.lang.ClassNotFoundException
Please get back if you can. Thanks again.
there is an exception arrived in my program during execution .
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at Demo.main(Demo.java:11)
plz tell me how can i solve this problem............?
I get this error when running the file
MySQL Connect Example.
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at MysqlConnect.main(MysqlConnect.java:13)
I tried the code above but i got one error message.
this message is being throw "java.lang.ClassNotFoundException: com.mysql.jdbc.Driver"
I am using JDK 1.6.
Is there any problem with my codes.
package mysqlconnect;
import java.sql.Connection;
import java.sql.DriverManager;
import javax.swing.JOptionPane;
/**
*
* @author Pio
*/
public class MysqlConnect {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
String n = "MYSQL Database Connection Test!";
JOptionPane.showMessageDialog(null,n,"MYSQL TEST Connection",JOptionPane.INFORMATION_MESSAGE);
Connection conn = null;
String url = "jdbc:mysql://host167.hostmonster.com:3306/";
String dbName = "xscholar_remington";
String driver = "com.mysql.jdbc.Driver";
String userName = "xscholar_konica";
String password = "return@64Days!";
try {
Class.forName(driver).newInstance();
conn = DriverManager.getConnection(url+dbName,userName,password);
String cn = "Connected from database!";
JOptionPane.showMessageDialog(null,cn,"Connection Error",JOptionPane.INFORMATION_MESSAGE);
System.out.println("Connected to the database");
conn.close();
String cl = "Disconnected from database!";
JOptionPane.showMessageDialog(null,cl,"Connection Error",JOptionPane.INFORMATION_MESSAGE);
System.out.println("Disconnected from database");
} catch (Exception e) {
String err = "Connection Error -> "+e+"!";
JOptionPane.showMessageDialog(null,err,"Connection Error",JOptionPane.WARNING_MESSAGE);
System.out.println("Error - > "+e+".");
}
}
}
Any help will be appreciated.
I downloaded and installed ODBC driver for MySQL in my Windows7 OS.But while adding DSN, the ODBC driver for mySQL is not displaying....Please help....
While executing the above program am getting the following error.
In my program i removed the UserName and Password and made it as blank. Anybody can suggest
Exception in thread "main" java.lang.NoClassDefFoundError: MysqlConnect
Caused by: java.lang.ClassNotFoundException: MysqlConnect
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
ThanksAdrian March 31, 2011 at 3:41 AM
Thanks for this tutorial. I was completely at a loss as to how to establish the connection in the first place, and this has been a huge help. :-) Now to get on with writing the queries...
problem in codespeeddaemon April 8, 2011 at 3:30 PM
hey, you haven't specified the parameter's for passing the sql queries....
Connecting to a MySQL Database in Java swatantra mishra April 13, 2011 at 1:33 PM
give me the ans
javaR.Shivaraja April 19, 2011 at 1:54 PM
how to save JDBC program and what is the procedure to load the project in NET Beans IDE
engineeringdeep prakash June 4, 2011 at 12:43 PM
creating jdbc
Question about mySQL jdbc driverJohnydep June 13, 2011 at 9:12 AM
I am using eclipse. Whenever i try to run, i get an exception. I heard i have to copy the jar file somehwere and set the classpath. How can i do that?
Help meVIVEK July 28, 2011 at 9:25 PM
What are the procedure to make a connection between java and mysql in control panel.
servletpoonam September 17, 2011 at 9:07 AM
thank you
unable to connectAkhil P M October 6, 2011 at 12:05 PM
i tried this code & i got a ClassNotFoundException.i had mysql installed on my system(mysql Ver 14.14 Distrib 5.1.41) & i uses eclipse for java coding.Please tell me how can i get a connection to DB? whether any additional installation is needed for to get the connection(in Ubuntu)?
jdbcRajendra Verma November 24, 2011 at 2:23 AM
I love this 4 hour se paresan tha
Note for youshishir December 5, 2011 at 5:48 PM
Please remember that we need to add sql-connector.jar to enable all this code.
connectivityAshutosg December 17, 2011 at 7:18 AM
i m not understanding this can anyone help me out
errorAbhijnha January 25, 2012 at 1:31 PM
how can i solve this issue Type mismatch: cannot convert from java.sql.Connection to com.mysql.jdbc.Connection
doubtwassim ahamed January 25, 2012 at 7:53 PM
have to install mysql or not
mysql codingpackialakshmi February 6, 2012 at 5:13 PM
i want more mysql codings using java
to connect databasevirendra verma February 25, 2012 at 7:20 PM
sir,when i write below program,and when i click on submit button,message shows class not found please help me,modify my program import java.sql.*; import javax.servlet.*; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class serve extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html"); PrintWriter out = response.getWriter(); RequestDispatcher rd=request.getRequestDispatcher("index.jsp"); rd.include(request,response); //String name = request.getParameter("username"); //String password = request.getParameter("pass"); String name = request.getParameter("name"); try { Class.forName("com.mysql.jdbc.Driver"); Connection con = DriverManager.getConnection( "jdbc:mysql://localhost:3306/demo", "root", "mysql"); Statement stmt = con.createStatement(); ResultSet rs = stmt.executeQuery("insert into student values('"+name+"');"); while (rs.next()) { out.print("<tr><td>"); out.print(rs.getString(1)); out.print("</td></tr>"); //if(name1 == name) } } catch (Exception e) { out.print(e); } out.flush(); out.print("your name is:"+name); response); } }
database delete om shankar kr April 7, 2012 at 10:54 AM
i want do download..............
thanks!Hannah April 11, 2012 at 8:16 PM
Fantastic website! Use It all the time when Im looking for some Java help..Thanks alot!
chava technologykrishna chaithanya April 17, 2012 at 1:39 PM
please upload chava cdbc mysql connection statements pls urgent
java.lang.ClassNotFoundException Mac May 13, 2012 at 1:38 PM
Thanks. but i could not run this code. it compiles alright with the credentials for my database but can not run. i get java.lang.ClassNotFoundException Please get back if you can. Thanks again.
to ask a questionadinew May 22, 2012 at 2:42 PM
I have many I have many comments I have many comments I have many comments I have many comments I have many comments I have many comments comments
jdbc questionanarkali May 27, 2012 at 5:49 PM
package com.tcs.ilp.Try.Controller; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import com.tcs.ilp.Try.Model.Beans; import com.tcs.ilp.Try.Model.MyHelper; /** * Servlet implementation class Servlet1 */ public class Servlet1 extends HttpServlet { private static final long serialVersionUID = 1L; /** * Default constructor. */ public Servlet1() { // TODO Auto-generated constructor stub } /** * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { HttpSession session=request.getSession(); PrintWriter out=response.getWriter(); out.println("Entred post"); String str2=request.getParameter("submit"); out.println(str2); //ArrayList<Beans> c=new ArrayList<Beans>(); String str=request.getParameter("username"); String str1=request.getParameter("password"); ArrayList<Beans> a=new ArrayList<Beans>(); if(str2.equals("Login")) { System.out.println("Entred if"); //System.out.println(a); int d; d=MyHelper.insert(str,str1); //Beans b=new Beans(); a=MyHelper.view(); session.setAttribute("registration",a); response.sendRedirect("Reg_users.jsp"); } if(str2.equals("Update")) { MyHelper.update(str,str1); } if(str2.equals("logout")) { session.invalidate(); System.out.println("Successfully Deleted"); } } }
mysql connection to java Arjoo June 11, 2012 at 9:55 AM
Thanx a lot........it works....
Regarding the code neelu June 15, 2012 at 3:40 PM
what is :3306 there in code? Is it same for everybody or if different, how can you find it?
java data base conectivitymadhu sudan June 17, 2012 at 7:53 AM
there is an exception arrived in my program during execution . java.lang.ClassNotFoundException: com.mysql.jdbc.Driver at java.net.URLClassLoader$1.run(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at Demo.main(Demo.java:11) plz tell me how can i solve this problem............?
java database suhas June 25, 2012 at 9:10 PM
I want to know that for java pro which changes have to do for inserting database.i am using sql database?
moduarising the programsom July 16, 2012 at 2:57 PM
sir may i knw how to make a class and make this program modular..i meaen all the strings should be in properties file.
errorJoseph July 21, 2012 at 11:42 PM
I get this error when running the file MySQL Connect Example. java.lang.ClassNotFoundException: com.mysql.jdbc.Driver at java.net.URLClassLoader$1.run(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at MysqlConnect.main(MysqlConnect.java:13)
about htmlakhil July 26, 2012 at 11:20 AM
is it possible to connect html pages to mysql?
Class Not Found ExceptionPio Baleicoqe August 2, 2012 at 4:02 AM
I tried the code above but i got one error message. this message is being throw "java.lang.ClassNotFoundException: com.mysql.jdbc.Driver" I am using JDK 1.6. Is there any problem with my codes. package mysqlconnect; import java.sql.Connection; import java.sql.DriverManager; import javax.swing.JOptionPane; /** * * @author Pio */ public class MysqlConnect { /** * @param args the command line arguments */ public static void main(String[] args) { String n = "MYSQL Database Connection Test!"; JOptionPane.showMessageDialog(null,n,"MYSQL TEST Connection",JOptionPane.INFORMATION_MESSAGE); Connection conn = null; String url = "jdbc:mysql://host167.hostmonster.com:3306/"; String dbName = "xscholar_remington"; String driver = "com.mysql.jdbc.Driver"; String userName = "xscholar_konica"; String password = "return@64Days!"; try { Class.forName(driver).newInstance(); conn = DriverManager.getConnection(url+dbName,userName,password); String cn = "Connected from database!"; JOptionPane.showMessageDialog(null,cn,"Connection Error",JOptionPane.INFORMATION_MESSAGE); System.out.println("Connected to the database"); conn.close(); String cl = "Disconnected from database!"; JOptionPane.showMessageDialog(null,cl,"Connection Error",JOptionPane.INFORMATION_MESSAGE); System.out.println("Disconnected from database"); } catch (Exception e) { String err = "Connection Error -> "+e+"!"; JOptionPane.showMessageDialog(null,err,"Connection Error",JOptionPane.WARNING_MESSAGE); System.out.println("Error - > "+e+"."); } } } Any help will be appreciated.
thanksIGHOT August 11, 2012 at 9:34 PM
god bless you rose india !! thanks a lot you're the best.
i want to jdbc connection program in javasowmiya.c August 18, 2012 at 2:02 PM
pls reply my email
javaace September 7, 2012 at 6:08 AM
which is more easy to use java or php
thanksbhaumik September 26, 2012 at 11:03 PM
thank you it is really helpful content
sqlgovind September 30, 2012 at 10:06 AM
kya hum without sql use kiye bina database use nhi kar sakte
MySQL Connectionprabu October 25, 2012 at 4:09 PM
I downloaded and installed ODBC driver for MySQL in my Windows7 OS.But while adding DSN, the ODBC driver for mySQL is not displaying....Please help....
database connectingovind November 27, 2012 at 3:30 PM
it s very useful.
good job..Anand November 30, 2012 at 7:02 PM
this site more usefull for beginners..
Connecting with MySQLBalaji April 1, 2013 at 9:25 PM
While executing the above program am getting the following error. In my program i removed the UserName and Password and made it as blank. Anybody can suggest Exception in thread "main" java.lang.NoClassDefFoundError: MysqlConnect Caused by: java.lang.ClassNotFoundException: MysqlConnect at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
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