classNotFound Exception when using JDBC for MYSQL on Tomcat in eclipse

Question

This seems to be a common problem, but I could not find a working solution. I\'ve looked through dozens of thread and have been working with my teacher. I am trying to conn

Answer 1

Putting the MySQL-connector-java-5.1.6.jar in the Tomcat/lib directory finally worked for me. Shouldn't have to do this so I suspect my Tomcat installation isn't optimum and deploying the war file might be problematic

Answer 2

modify 'common.loader' property in the 'catalina.properties' file in the tomcat 'conf' folder as shown below

common.loader=${catalina.base}/lib,${catalina.base}/lib/*.jar,${catalina.home}/lib,${catalina.home}/lib/*.jar

Also add 'mysql-connector-java-5.0.8-bin.jar' in the tomcat 'lib' folder

Answer 3

java.lang.ClassNotFoundException: com.mysql.jdbc.Driver

You missing MySQL driver library. Since, you are using Mysql database, make sure you have included mysql-connector-java.

<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.8-dmr</version>
</dependency>

Answer 4

Version Mismatch could cause this error. I myself was stuck in this error for days. Please check the version of jdbc connector. Latest connectors require java 1.8. In my case my tomcat version didn't support the connector version i added so please check for that also.

PS : Tomcat - 8.0.32 ; mysql-connector - 5.1.30 with java 1.7 works (Y)