Why Does My Java App Get a 'No Suitable Driver Found' Error with Connection Pools?

How to Prevent "No Suitable Driver Found" Errors When Using Connection Pools

Developers frequently encounter the "No suitable driver found" error when using connection pools in their Java applications. This issue, as highlighted in the query, arises when Tomcat 7 struggles to locate the appropriate JDBC driver during database connection initialization.

To resolve this issue, ensure that the mysql connector jar (5.1.15 or higher) is present in the server's lib folder. This can be found at $CATALINA_HOME/lib. Additionally, the driver should be configured before the application is instantiated.

Moreover, within the DatabaseConnector class, the DriverManager.getConnection() method is utilized to establish a database connection. To address the "No suitable driver found" error, replace this line:

con = DriverManager.getConnection("jdbc:apache:commons:dbcp:test");

with:

con = DriverManager.getConnection(DB_URI, _username, _password);

Here, DB_URI, _username, and _password represent the connection parameters defined earlier in the class.

By implementing these adjustments, the application will be able to successfully connect to the database without encountering the "No suitable driver found" error.

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