How to fix No suitable driver found for jdbc mysql localhost dbname error when using pools

Question

I am trying to create a connection to my database  when I put test my code using the main method  it works seamlessly  However  when trying to access it through Tomcat 7  it fails with error    No suitable driver found for jdbc mysql   localhost dbname     I am using pooling  I put in mysql connector  5 1 15   dbcp  1 4    and pool 1 4 5  libraries in WEB-INF lib and in  classpath as well  I am using Eclipse IDE  My code for the database driver is   import java sql Connection  import java sql DriverManager  import java sql SQLException   import org apache tomcat dbcp dbcp ConnectionFactory  import org apache tomcat dbcp dbcp DriverManagerConnectionFactory  import org apache tomcat dbcp dbcp PoolableConnectionFactory  import org apache tomcat dbcp dbcp PoolingDriver  import org apache tomcat dbcp pool impl GenericObjectPool   public class DatabaseConnector       public static String DB URI    jdbc mysql   localhost dbname       public static String DB USER    test       public static String DB PASS    password           Singleton instance     protected static DatabaseConnector  instance       protected String  uri      protected String  username      protected String  password                  Singleton  so no public constructor             protected DatabaseConnector String uri  String username  String password             uri   uri           username   username           password   password           GenericObjectPool connectionPool   new GenericObjectPool null           ConnectionFactory connectionFactory   new DriverManagerConnectionFactory               uri   username   password           PoolableConnectionFactory poolableConnectionFactory               new PoolableConnectionFactory connectionFactory  connectionPool                                              null  null  false  true           PoolingDriver driver   new PoolingDriver            driver registerPool  test   connectionPool                         Returns the singleton instance             public static DatabaseConnector getInstance             if   instance    null                 instance   new DatabaseConnector DB URI  DB USER  DB PASS                     return  instance                        Returns a connection to the database             public Connection getConnection             Connection con   null          try               con   DriverManager getConnection  jdbc apache commons dbcp test              catch  SQLException e                throw new RuntimeException e                     return con            Start of my stack trace   Apr 5  2011 9 49 14 PM org apache catalina core StandardWrapperValve invoke SEVERE  Servlet service   for servlet  Login  in context with path   Project   threw exception java lang RuntimeException  java sql SQLException   No suitable driver found for jdbc mysql   localhost dbname   What is causing this error

User · Answer

Most of time it happen because two mysql-connector-java-3.0.14-production-bin.jar file. One in lib folder of tomcat and another in classpath of the project.

Just try to remove mysql-connector-java-3.0.14-production-bin.jar from lib folder.

This way it is working for me.

User · Answer

Try putting the driver jar in the server lib folder    CATALINA HOME lib    I believe that the connection pool needs to be set up even before the application is instantiated   At least that s how it works in Jboss

User · Answer

The reason you got this error   java sql SQLException  No suitable driver found for jdbc mysql   localhost dbname   Is because you forgot to register your mysql jdbc driver with the java application   This is what you wrote   Connection con   null  try       con   DriverManager getConnection  jdbc apache commons dbcp test      catch  SQLException e        throw new RuntimeException e       Should be this   Connection con   null  try         registering the jdbc driver here  your string to use        here depends on what driver you are using      Class forName  something jdbc driver YourFubarDriver           con   DriverManager getConnection  jdbc apache commons dbcp test      catch  SQLException e        throw new RuntimeException e       You ll have to read the manual on your specific mysql jdbc driver to find the exact string to place inside the the Class forName        parameter   Class forName not required with JDBC v 4  Starting with Java 6  Class forName  something jdbc driver YourFubarDriver   is not necessary anymore if you use a recent  JDBC v 4  driver   For details read this  http   onjava com pub a onjava 2006 08 02 jjdbc-4-enhancements-in-java-se-6 html

User · Answer

You can stick the jar in the path of run time of jboss like this   C  User user workspace jboss-as-web-7 0 0 Final standalone deployments MYapplicationEAR ear test war WEB-INF lib  ca marche 100

User · Answer

I m running Tomcat 7 in Eclipse with Java 7 and using the jdbc driver for MSSQL sqljdbc4 jar   When running the code outside of tomcat  from a standalone java app  this worked just fine           connection   DriverManager getConnection conString  user  pw     However  when I tried to run the same code inside of Tomcat 7  I found that I could only get it work by first registering the driver  changing the above to this           DriverManager registerDriver new com microsoft sqlserver jdbc SQLServerDriver             connection   DriverManager getConnection conString  user  pw

User · Answer

add the artifact from maven     lt dependency gt       lt groupId gt mysql lt  groupId gt       lt artifactId gt mysql-connector-java lt  artifactId gt       lt version gt 5 1 6 lt  version gt    lt  dependency gt

User · Answer

The solution is straightforward   Make sure that the database connector can be reached by your classpath when running  not compiling  the program  e g    java -classpath   c  path to mysql-connector-java-5 1 39 jar YourMainClass    Also  if you re using an old version of Java  pre JDBC 4 0   before you do  DriverManager getConnection this line is required   Class forName  your jdbc driver TheDriver       this line is not needed for modern Java

User · Answer

I had the mysql jdbc library in both  CATALINA HOME lib and WEB-INF lib  still i got this error   I needed Class forName  com mysql jdbc Driver    to make it work

User · Answer

Since no one gave this answer  I would also like to add that  you can just add the jdbc driver file mysql-connector-java-5 1 27-bin jar in my case  to the lib folder of your server Tomcat in my case   Restart the server and it should work

User · Answer

I had the same problem  all you need to do is define classpath environment variable for tomcat  you can do it by adding a file  in my case C  apache-tomcat-7 0 30 bin setenv bat  containing   set  CLASSPATH  CLASSPATH   CATALINA HOME  lib mysql-connector-java-5 1 14-bin jar    then code  in my case    Class forName  com mysql jdbc Driver   newInstance     conn   DriverManager getConnection  jdbc mysql   localhost 3306 database name    root          works fine

User · Answer

From what i have observed there might be two reasons for this Exception to occur   1 Your Driver name is not spelled Correctly   2 Driver hasn t been Associated Properly with the Java Project    Steps to follow in Eclipse      1 Create a new Java Project      2 copy The connector Jar file     3 Right Click on the Java project and paste it there      4 Right click on the Java project -  Properties - Java Build Path -     libraries-  Add Jar - choose ur project select the jar file from dropdown    and click ok

User · Answer

if you are using netbeans you must add Mysql JDBC driver in the library list of the project  in the properties of your project

User · Answer

I also had the same problem some time before  but I solved that issue   There may be different reasons for this exception  And one of them may be that the jar you are adding to your lib folder may be old   Try to find out the latest mysql-connector-jar version and add that to your classpath  It may solve your issue  Mine was solved like that

User · Answer

When developing using Ubuntu  Xubuntu 12 04 1  I  HAD  to do the following    Using  Eclipse Juno  downloaded  not installed via the software centre    Tomcat 7  downloaded in a custom user directory  also added as a Server in Eclipse   Dynamic Web Project with a 3 0 Servlet   MySQL Server on localhost configured and tested with user and password  make sure to test  MySQL connector driver 5 1 24 jar    I  HAD   and I repeat  HAD   to us the Class Load  com mysql jdbc Driver   statement along with adding the connector driver jar to be in the web project lib folder for it to work in this situation   IMPORTANT    after you copy the driver jar to the lib make sure you refresh your project in Eclipse before running the servlet via Tomcat   I did try adding the connector driver jar file via the Build Path with and without ClassLoad but it did not work   Hope this helps anyone starting development with this specific situation  the Java community provides a  LOT  of documentation but there are so many variables its hard to cover all of them and it makes things very hard on the new guy   I think if someone could explain why Class Load is required here  in this situation  it would be beneficial   Enjoy

User · Answer

When running tomcat out of eclipse it won t pick the lib set in CATALINA HOME lib  there are two ways to fix it  Double click on Tomcat server in eclipse servers view  it will open the tomcat plugin config  then either    Click on  Open Launch Config    Classpath tab set the mysql connector j jar location  or Server Location   select option which says  Use Tomcat installation  take control of Tomcat installation

User · Answer

Bro  you can also write code as below   import java sql    import java io    public class InsertDatabase    public static void main String   args           TODO Auto-generated method stub     try                 Class forName  com mysql jdbc Driver              Connection con DriverManager getConnection             jdbc mysql   localhost 3306 Maulik   root   root               Statement stmt con createStatement              ResultSet rs stmt executeQuery  select   from Employee              while rs next              System out println rs getInt 1       rs getString 2       rs getString 3              con close               catch Exception e                System out println e

User · Answer

Add the driver class to the bootstrapclasspath  The problem is in java sql DriverManager that doesn t see the drivers loaded by ClassLoaders other than bootstrap ClassLoader

User · Answer

From other stackoverflow thread    Second  Make sure that you have MySQL JDBC Driver aka Connector J in JMeter s classpath  If you don t - download it  unpack and drop mysql-connector-java-x xx xx-bin jar to JMeter s  lib folder  JMeter restart will be required to pick the library up   Please be sure that  jar file is added directly to the lib folder

User · Answer

Put mysql-connector-java-5 0 8-bin jar in  CATALINA HOME lib Check for typo in connection url  example  jdbc mysql   localhost 3306 report    report  here is the db name  Make sure to use machine name example   localhost instead of ip address 127 0 0 1

User · Answer

I had the same problem using Tomcat7 with mysql-connector-java-5 1 26 that I put in both my  CATALINA HOME lib and WEB-INF lib  just in case  But it wouldn t find it until I used either one of these two statements before getting the connection   DriverManager registerDriver new com mysql jdbc Driver       OR  Class forName  com mysql jdbc Driver     I then followed up with removing mysql-connector-java-5 1 26 from  CATALINA HOME lib and the connection still works

User · Answer

Use    try        Class forName  com mysql jdbc Driver   newInstance        System out println  Registro exitoso       catch  Exception e         System out println e toString         DriverManager getConnection

[mysql] How to fix: "No suitable driver found for jdbc:mysql://localhost/dbname" error when using pools?

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