MySQL :: Jdbc - Tomcat Webapp Cannot Use Database Driver After Redeploy?

Java - Org.hibernate.HibernateException: JDBC Driver Class Not Found: Com.mysql.jdbc.Driver
i am using MySQL workbench 5.2 CE database with a basic hibernate program at run time it give me error:

Caused by: org.hibernate.HibernateException: JDBC Driver class not found: com.mysql.jdbc.Driver this code in hibernate.cfg.xml:

<hibernate-configuration>
<session-factory>
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="connection.url">jdbc:mysql://192.168.8.212/da?autoReconnect=true&useOldUTF8Behavior=true&useUnicode=true&characterEncoding=UTF-8" /></property>
<property name="connection.username">root</property>............

Posted: Aug 16 10 at 12:51

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JDBC Error - Javax.servlet.ServletException: Com.mysql.jdbc.driver
I get the following error when trying access my MySQL database from a jsp page.

I have copied the proper jar into the WEB-INF/lib and the /ext path of my CLASSPATH.

Am I misisng something?

+++++++++++++++++++++++++++++++++++++++++++++

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: com.mysql.jdbc.driver
org.apache.struts.action.RequestProcessor.processException(RequestProcessor.ja va:535)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcesso r.java:433)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

root cause

java.lang.ClassNotFoundException: com.mysql.jdbc.driver
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java: 1352)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java: 1198)
java.lang.ClassLoader.loadClassInternal(Unknown Source)
java.lang.Class.forName0(Native Method)
java.lang.Class.forName(Unknown Source)
com.mullen.cac.struts.action.TestDB.execute(TestDB.java:30)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcesso r.java:431)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

note The full stack trace of the root cause is available in the Apache Tomcat/5.5.17 logs.

Posted: Sep 21, 2006, 07:52

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Java - Tomcat 6 Can't Find Driver
There is a similar question here but regarding the class path. [URL] I've had everything working great until some days ago. Suddenly my little application can't find the mysql driver. And i don't understand why (really I've checked everything) I got the driver jar in the WEB-INF/lib, but tomcat just seems unable to find it.

I'm using Ubuntu with tomcat 6 and mysql installed from the synaptics packadge manager The error that is giving is: ClassNotFoundException: com.mysql.jdbc.Driver I've even changed the permissions into 777 to see if it could be invisibile, but it isn't :(

Posted: Nov 14 09 at 3:17

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Maven Tomcat Plugin With Database Driver In $catalina_home/lib?
i am trying to use a container managed datasource (via context.xml) in tomcat. The corresponding jar file needs to go in $catalina_home/lib, otherwise tomcat can't find it. (not in webapp/WEB-INF/lib, because it is managed by the webserver, not by the application itself)

the problem is: I am using maven with the maven-tomcat-plugin, so I don't have a $catalina_home (everything is distributed in my .m2 -repository). So the question is: how can I add the mysql driver jar to the classpath of the tomcat server (mvn tomcat:run)?

Posted: Feb 16 10 at 13:19

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Tomcat 6.0 Manager Authentication Via JDBC Realm?
I wanted to configure Tomcat6.0 authentication via JDBC realm Configuration.**
I checked following:

-All my "users" and "roles" are stored in MySQL database.
-MySQL JDBC drives are in tomcatlib directory
-Tomcat-user-xml is modified for such realm as below
<-Realm
className="org.apache.catalina.realm.JDBCRealm" driverName="org.gjt.mm.mysql.Driver"
connectionName="XXX" connectionPassword="YYY"
connectionURL="jdbc:mysql://localhost/mydb"
digest="MD5"

[Code]....

Posted: Oct 1 09 at 7:44

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Java - Tomcat 6.0.24 Exception: Could Not Load Com.mysql.jdbc.SQLError
My tomcat 5 server running on centos frequently (several times / day) produces the following error: Apr 7, 2011 11:02:30 PM org.apache.catalina.loader.WebappClassLoader loadClass INFO: Illegal access: this web application instance has been stopped already. Could not load com.mysql.jdbc.SQLError. The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact.

java.lang.IllegalStateException
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1370)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1329)
at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3291)
at com.mysql.jdbc.MysqlIO.quit(MysqlIO.java:1665)
at com.mysql.jdbc.ConnectionImpl.realClose(ConnectionImpl.java:4411)
at com.mysql.jdbc.ConnectionImpl.cleanup(ConnectionImpl.java:1315)
at com.mysql.jdbc.ConnectionImpl.finalize(ConnectionImpl.java:2761)
at java.lang.ref.Finalizer.invokeFinalizeMethod(Native Method)
at java.lang.ref.Finalizer.runFinalizer(Unknown Source)
at java.lang.ref.Finalizer.access$100(Unknown Source)
at java.lang.ref.Finalizer$FinalizerThread.run(Unknown Source)

tomcat's lib directory contains mysql-connector-java-5.1.8-bin.jar and mysql-connector-java-5.1.6-bin.jar, while the WEB-INF/lib directory only contains mysql-connector-java-5.1.8-bin.jar. All three jar files contain the SQLError class.

Posted: Apr 9 at 20:25

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XA Vs. Non-XA JDBC Driver Performance?
We are using an XA JDBC driver in a case where it is not required (read-only work that doesn't participate in a distributed transaction). Just wondering if there are any known performance gains to be had to switch to the Non-XA JDBC driver - if not it's probably not worth switching?FWIW we are using MySQL 5.1

Posted: Apr 28 10 at 12:50

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JDBC Driver In OSGI (Eclipse IDE)
I am having some problems with getting my OSGI programs to recognzie/utilize the mysql jdbc driver. I have a bundle that is speficcally for entering data into a mysql database. I have copied over all the same methods as in a test program (non-OSGI). I am not able to create a connection suing DriverManager.getConnection(). I have added the driver to the class path andhave tried all the solutions on this site such as using Class.forName(). Possibly I am inputting the wrong string arg into forName().

public void createConn(String URL, String DBName, String username, String password){
try {
Class.forName("mysql-connector-java-5.1.14-bin.jar");
} catch (ClassNotFoundException e1) {
e1.printStackTrace();
}
try {
conn = DriverManager.getConnection(URL + DBName,username,password);
System.out.println("Connection Created");
stmt = conn.createStatement();
System.out.println("Statement Created");
//data = new ApplianceData();
//flag = true;
//this.writeThread = new Thread();
//writeThread.start();
} catch (SQLException e) {
System.err.println(e.getMessage());
}
}

Can someone tell me the argument they used in Class.forName(); Does anybody have a solution to this problem or encountered this?

Posted: Jan 27 at 21:37

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JDBC Driver For Query Wrapping?
Does the driver automatically wraps all SQL queries/updates into START TRANSACTION; MyQuery; COMMIT; ? Or is there a way to configure it to do the above?

Posted: Nov 1 10 at 2:18

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Java - Access - JDBC Driver In OSGI
I am trying to have an OSGI bundle access a MYSQL DB, using Eclipse as my IDE (Windows 7 x64). I am able to load the jdbc connector. The actual .jar is placed in all in folders in the java install directories, along with the in folder of the bundle. I have set the environment classpath variable to this folder also. I have an error stating that the driver is not suitable. I know OSGI has some issues with drivers etc. Can someone recommend a way to circumvent this?

ClassLoader DBHCL = ClassLoader.getSystemClassLoader();
DBHCL.loadClass("com.mysql.jdbc.Driver");
Class.forName("com.mysql.jdbc.Driver", true, DBHCL).newInstance();
System.out.println("Class Loaded");
//DriverManager.getDriver("jdbc:mysql://localhost/timedb");
//System.out.println("Driver Gotten");
conn = DriverManager.getConnection(URL + DBName,username,password);
System.out.println("Connection Created");
stmt = conn.createStatement();
System.out.println("Statement Created");
connFlag = true;

Console Output, Error: osgi> start 7 Data Base Service (MYSQL) Starting Class Loaded No suitable driver found for jdbc:mysql://localhost/timedb Exception in thread "Thread-1" INSERT INTO appliance1... Does anybody have any insight into this problem? I have tried making a separate bundle solely for the jdbc driver and exporting/importing this to the appropriate bundle, but no luck.

Posted: Feb 8 at 6:40

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Cannot Load JDBC Driver For Datasource On WebLogic?
I can't create a datasource for MySQL and WebLogic server 10.3 due to this error:

Error: cannot load driver: com.mysql.jdbc.Driver

I'm using the http://localhost:7101/console for creating datasource, not with xml descriptor.

Where can I place the require MySQLconnector jar?

Posted: May 14 at 15:06

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Does MySQL's JDBC Driver Have A Facility For Parsing SQL
I'm writing a Java tool to validate SQL statements. For SELECT queries, I can do it with Connection.prepareStatement and PreparedStatemet.getMetaData. No exceptions == good query. Unfourtunately it doesn't work with eg. INSERT statements -- errors in query create exception only at executing the statement.Is there a way to parse SQL via JDBC without executing the statement? An internal method maybe?Unfourtunately I was also unable to find source code for Connector/J -- I'd be grateful for links to it.

Posted: Nov 22 10 at 12:26

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Java - Database Driver Connection Problems In JDBC?
I am developing an app in Java with Netbeans 6.9.1 as the IDE. I use a MySQL database, and connect to it using JDBC. I have a curious problem. Class.forName() does not throw ClassNotFoundException in one package, whereas it throws it in another. What might be wrong? JDK version is 1.6 and I am using Ubuntu 10.10.

Posted: Apr 21 at 14:31

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Cannot Create JDBC Driver Of Class For Connect URL Null?
I am trying to configure JTA Transactions with Atomkios in Tomcat 5.5 for jndi support I am using spring,jpa+hybernate when i m trying to access my database, i am getting the error like thisorg.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create JDBC driver of class '' for connect URL 'null'

org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:82)
org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:572)
org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:636)
[code]....

Posted: Nov 23 10 at 13:42

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Java - Diagnose ClassNotFound Exception For JDBC Driver?
My webapp is failing to get a connection to MySQL, failing with the error: Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver Now the mysql connector jar is clearly in my classpath: mysql-connector-java-5.0.7-bin.jar, in the WEB-INF/lib directory. So it doesn't make sense that it's "not found." I'm guessing it must be failing some static initialization. Is there any way to diagnose this problem?

Posted: Mar 16 at 21:29

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Java - JDBC Driver Class Not Found In Hibernate Program
I am making a simple mapping program in hibernate. I am facing an error:

JDBC Driver class not found: com.mysql.jdbc.Driver
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver

It gives an error on this line: Session session = HibernateUtil.getSessionFactory().openSession(); hibernate.cfg.xml is correct. In the same configration other program are run. but this program give me error.
What is the reason that it throws this error?

Posted: Sep 15 10 at 12:44

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Java - Netbeans With Glassfish Have No Suitable Driver Found For Jdbc
I have googled about a day:

Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection connection = DriverManager.getConnection("mysql:jdbc://127.0.0.1:3036/shedule", "root", "12345");

said: java.sql.SQLException: No suitable driver found for mysql:jdbc://127.0.0.1:3036/shedule

0) mysql -h 127.0.0.1 -P 3306 -u root -p works
2) netstat said that mysqld listened to 0.0.0.0:3306
3) lastest netbeans 6.9.1 + glassfish 3.0.1
4) I have ONLY mysql-connector-java-5.1.6-bin.jar no other jars! searched at all hard drives before and after deploy!

it seat at:...........

Posted: Dec 26 10 at 9:12

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Jdbc Driver Can't Support Delimiters In Triggers With Multiple Statements?
i've got some code that is triggering a syntax error because of some misplaced semicolons. if this was running on the command line, i'd solve this with a delimiter. unfortunately, the jdbc4 driver doesn't seem to recognize delimiters. anyway to get this to run?

delimiter |
CREATE TRIGGER obs_update BEFORE UPDATE ON obs
FOR EACH ROW
BEGIN
IF OLD.voided = 0 AND NEW.voided = 1 THEN
DELETE FROM clinic_obs WHERE id = OLD.obs_id;
ELSE
UPDATE clinic_obs SET clinic_obs.revision_token = NOW()
WHERE NEW.obs_id = clinic_obs.id;
END IF;
END;
|
delimiter ;

Posted: Aug 14 10 at 2:26

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Configure JDBC Driver "mysql-connector-java-5.1.12"?
I have downloaded MySQL JDBC driver from [URL]. How do I configure it?

Posted: May 25 10 at 17:54

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Java - Jar File Cannot Find The "com.mysql.jdbc" Driver
I am trying to make a application in java which connects to a mysql database. For this purpose I downloaded the mysql-connector-java-5.1.16-bin.jar connector. I also added the path of the above jar file in the CLASSPATH environment variable. I created the application and executed the java files and it executed properly. Then I created a jar file of the application and tried to execute it then i got the following error

java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
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 CanteenCounter.refresh(CanteenCounter.java:73).....................

Posted: May 15 at 18:20

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Java Applet On An Xampp Server - No Suitable Driver Found On "jdbc:mysql://localhost:3306/"
I'd like to preface this question by saying that I'm really new at server setup and programming. I made an applet that views data from tables in a MySQL database and lets just say it outputs it. It's a lot more complicated than that but the point is that the applet runs perfectly in Eclipse when I run it. I had to set the MySQL-connector-java-5.1.15-bin.jar file as an external library for it, but after doing that it runs perfectly.

The problem is whenever I put the code on my Xampp server, it doesn't work right. The applet start and everything works until the applet tries to connect to the MySQL database (Xampp) using the following code:

String connectionURL = "jdbc:mysql://127.0.0.1/";
Connection connection = null;
try{
connection = DriverManager.getConnection(connectionURL, "root", "mypassword");
}catch(Exception e){
System.out.println("Error: "+e);
}

In the applet I didn't use System.out.println(), but I did manage to find out the I was getting was: java.SQL.Exception: No suitable driver found on jdbc:mysql://127.0.0.1/ I'm wondering what I need to do to get around this error. Where do I need to put the .jar connector or how do I need to configure it with my Xampp server to get this to work?

Posted: Jan 31 at 3:27

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Java - Invalid Jboss Datasources After Redeploy
I'm developing an application tha uses seven datasources (ds) for MySql databases. I'm pretty satisfied with the result when it is working. However i'm getting are datasource related problems when I redeploy my aplication. Here is one of the seven ds I've configured in my my-application-ds.xml:

<xa-datasource>
<jndi-name>jdbc/my_db_name</jndi-name>
<xa-datasource-class>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</xa-datasource-class>
<xa-datasource-property name="URL">jdbc:mysql://192.168.26.2:3306/my_db_name</xa-datasource-property>
<xa-datasource-property name="User">user</xa-datasource-property>
<xa-datasource-property name="Password">password</xa-datasource-property>
<min-pool-size>0</min-pool-size>
<max-pool-size>5</max-pool-size>
<idle-timeout-minutes>5</idle-timeout-minutes>
<exception-sorter-class-name>
com.mysql.jdbc.integration.jboss.ExtendedMysqlExceptionSorter
</exception-sorter-class-name>....................................

Posted: Jan 26 10 at 19:14

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Error '80004005' [Microsoft][ODBC Driver Manager] Data Source Name Not Found And No Default Driver Specified
I developed an ASP application (VBScript backend, JavaScript frontend) that makes use of a remote MySQL database (Bugzilla). The applicaiton works well on a localhost, yet fails to work when uploaded to GoDaddy.

The error I'm getting is:

Microsoft OLE DB Provider for ODBC Drivers error '80004005'[Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified

My connection string is:

"DRIVER={MySQL ODBC 5.1 Driver}; SERVER=xxx.org; DATABASE=xxx;UID=xxx;PWD=xxx;OPTION=16427"

I tried to modify it by removing the OPTION, changing the MySQL driver, reducing the driver to DRIVER={MySQL}, changing the case of UID and PW, etc. - no progress...

Posted: Apr 18 09 at 5:44

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Error [IM002] [Microsoft][ODBC Driver Manager] Data Source Name Not Found And No Default Driver Specified
I have a project in which I'm accessing a MySql database on my web server via MySql ODBC driver 3.51. So far I've stuck to writing the ASP.NET C# code for this web app in notepad and just using runtime compiles on the server side to operate everything. So instead of using something like:

<%@ Page Title="Add Order" Language="C#" MasterPageFile="~/main_layout.Master" AutoEventWireup="true" CodeBehind="order_add.aspx.cs" Inherits="Orders.order_add" %>

I've been using:

<script language="c#" runat="server" src="cs/orders.cs"></script>

within the header of the page to load the C# code to access the database. That was quickly becoming a bear to manage and I see numerous advantages to creating my web application the way Microsoft and God intended.

But when I take the exact same code and pull it from my previous work and put it into Visual Studio 2010 (Express) I get a connection error.

ERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified

Presumably it can't find the connection to the database. I've checked the connection string, stored in the Web.Config file, to validate that the information is correct and it's spot on.

Posted: Jul 5 10 at 20:17

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