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HomeJavajavaTutorialWhy Am I Getting a ClassNotFoundException When Using CLASSPATH in Windows 7?

Why Am I Getting a ClassNotFoundException When Using CLASSPATH in Windows 7?

Resolving java.lang.ClassNotFoundException Despite Using CLASSPATH Environment Variable

While attempting to connect to a MySQL database using Java in Windows 7, setting the CLASSPATH environment variable to include the path to the JDBC driver jar file doesn't seem to resolve the java.lang.ClassNotFoundException: com.mysql.jdbc.Driver error. What could be causing this issue?

Answer:

The CLASSPATH environment variable is only utilized by the java.exe command and is not considered when using IDEs like Eclipse. It's generally regarded as a poor practice due to portability concerns.

Instead, use the "Build Path" setting within the IDE. This allows you to specify the compile-time and runtime classpath for your project, ensuring that necessary libraries like the JDBC driver jar are accessible.

Additional Considerations:

  • Refer to the linked resource for more details on configuring the classpath when working with WAR projects in Java.
  • Avoid relying on the CLASSPATH environment variable as it can lead to confusion and portability issues.

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