classnotfoundexception « Development « Java Database Q&A





1. Why am I getting a java.lang.ClassNotFoundException?    stackoverflow.com

java.lang.ClassNotFoundException: com.mysql.jdbc.Driver i am getting this error after executing apache in Eclipse helios and i am using MYSQLyog ultimate please help...how to remove this error...??

2. "java.lang.ClassNotFoundException" when executing Java code    stackoverflow.com

I get a java.lang.ClassNotFoundException, when I execute the below code. Could someone explain me why I am facing this? All I need to do is to connect to the db and fetch ...

3. ClassNotFoundException    coderanch.com

4. ClassNotFoundException    coderanch.com

5. ClassNotFoundException out of nowhere!!    coderanch.com

One thing that tripped me up was that unbeknownst to me, this error is also caused by a firewall not letting the connection get through. Check if a new software firewall has been installed and/or that if it has 'always' been there, that parameters haven't changed pertaining to communications from your 'application' being BLOCKED, in both directions. Along the same line ...

6. ClassNotFoundException: AS400JDBCDriver    coderanch.com

Hi all, I am connecting to Db2 on AS400 and i get the following error. I really appreciate some helping me on this. java.lang.ClassNotFoundException: com.ibm.as400.access.AS400JDBCDriver at java.net.URLClassLoader.findClass(URLClassLoader.java:240) at java.lang.ClassLoader.loadClass(ClassLoader.java:514) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:441) at java.lang.ClassLoader.loadClass(ClassLoader.java:446) at java.lang.Class.forName1(Native Method) at java.lang.Class.forName(Class.java:142) at com.howost.databasewrapper.databaseconnection.DatabaseConnection.getDB2Connection(DatabaseConnection.java:92) at com.howost.databasewrapper.databaseconnection.DatabaseAbstract.setDB2SQL(DatabaseAbstract.java:78) at TestDataConnect.DatabaseTestMain.main(DatabaseTestMain.java:36) java.sql.SQLException: No suitable driver at java.sql.DriverManager.getConnection(DriverManager.java:563) at java.sql.DriverManager.getConnection(DriverManager.java:194) at com.howost.databasewrapper.databaseconnection.DatabaseConnection.getDB2Connection(DatabaseConnection.java:102) at com.howost.databasewrapper.databaseconnection.DatabaseAbstract.setDB2SQL(DatabaseAbstract.java:78) at TestDataConnect.DatabaseTestMain.main(DatabaseTestMain.java:36) ____________________________________________________________________________ The code ...

7. ClassNotFoundException.    coderanch.com

I know this doesn't really address your immediate concern, but just for future reference you don't need to unzip and then jar the files. You can simply rename "classes12.zip" as "classes12.jar". It's the very same format. As Sainudheen said, you need to post the exception and the portion of the code. The most likely cause is a simply name error. Make ...

8. ClassNotFoundException    coderanch.com

Okay... I figured it out, here is the fix in case anybody else runs into this. In the <%tomcat_home%>\bin folder, there is a file called setclasspath.bat, if you add the path to the MySQL jar file, save the file then stop/restart tomcat, it will work. <%tomcat_home%> is the folder path to your tomcat install [ February 27, 2005: Message edited by: ...

9. ClassNotFoundException    coderanch.com

B, So you are having trouble connecting to your database from your servlet, right? If you are using a servlet, then you must also be using a servlet engine (also known as a servlet container). Chances are that you need to configure the CLASSPATH used by your servlet engine -- so that it can find the "classes12.jar" file (or whatever JDBC ...





10. classnotfoundexception    coderanch.com

11. ClassNotFoundException    coderanch.com

12. ClassNotFoundException with ResourceBundle    coderanch.com

Dear friends I am using NetBeans IDE 5.5 and facing problem in Database Connectivity using ResourceBundle Class. This is the Code of Main.java: package resobundledb; import java.sql.* ; import java.util.*; public class Main { public static void main(String argv[]) { Connection con = null; //ResultSet rs; ResourceBundle bundle = ResourceBundle.getBundle ("dbresource"); System.out.println("Hello this is resourcebundle database connectivity 01"); System.out.println(); try{ String ...

13. ClassNotFoundException    coderanch.com

14. ClassNotFoundException    coderanch.com

15. java.lang.ClassNotFoundException    coderanch.com

here it is... It is basically a login process page where i get the input from a previous page, name and password, search the database and let the user in or not... <%@ page import="java.sql.*,loginData.*" %> <% Connection connection = null; Class.forName("org.postgresql.Driver").newInstance(); connection = DriverManager.getConnection("jdbc:postgresql://localhost:5432/Leads","postgres","sicomedu"); Statement stmt = connection.createStatement(); ResultSet result = stmt.executeQuery("SELECT * ...

16. ClassNotFoundException    coderanch.com

import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.ResultSetMetaData; import java.sql.SQLException; //import java.sql.SQLFeatureNotSupportedException; import java.sql.Statement; public class UpdatableResultSetDemo { public static void main(String[] args) { Connection connection=null; Statement statement = null; ResultSet resultSet = null; try { Class.forName("oracle.jdbc.driver.OracleDriver"); connection = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl", "scott", "tiger"); //getting a updatable resultset statement = connection.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE ); resultSet = statement.executeQuery("SELECT * FROM EMP"); //before updating System.out.println("Before updating......."); ResultSetMetaData ...





18. ClassNotFoundException    coderanch.com

When I use the command then output is as follows --- C:\>set classpath CLASSPATH=C:\Program Files\SQL server driver\jtds-1.2.5.jar; Also I have a question that classpath also been set for java.then why only class path for this particular jar is showing,why not for all set class path's. Also suggest me ,where am I doing wrong in previous problem.(Connecting to Database).

19. ClassNotFoundException...    java-forums.org

20. JDBC ClassNotFoundException    forums.oracle.com

Hi everyone, Could someone give me some pointers on this issue before I pull my hair out. I've done everything I can think of...I've looked at every code example on the internet. The problem is I can't get my servlet to find the derby ClientDriver. java.lang.ClassNotFoundException: org.apache.derby.jdbc.ClientDriver Class.forName("org.apache.derby.jdbc.ClientDriver").newInstance(); d:\sun\javaDB\lib;d:\sun\javaDB\lib\DerbyClient.jar ...