- #Class forname com mysql jdbc driver newinstance install#
- #Class forname com mysql jdbc driver newinstance code#
Since JDBC code usually never directly references the driver, it wouldn't get loaded without Class.forName (or some other equivalent alternatives). In Java, a class is not loaded unless it is necessary that the class gets loaded. The example below will show the exception. That code is forcing the class representing the MySQL driver to load and initialize. If the MySQL JDBC driver jar is missing or not available in the java class path, the exception : will be thrown. Exception in thread "main" : Īt (URLClassLoader.java:381)Īt (ClassLoader.java:424)Īt $AppClassLoader.loadClass(Launcher.java:331)Īt (ClassLoader.java:357)Īt 0(Native Method)Īt (Class.java:264)Īt (DBConnection.java:8) The driver class is not found in the java class path. The stack trace of the exception : will be as below.
If the MySQL JDBC driver is not available, the exception : will be thrown by the java application. The MySQL JDBC driver gathers data from the MySQL database and sends it back to the Java application. The Mysql database executes the query and returns the data. The mysql driver sends the database query to the database from Java. The MySQL JDBC driver is used to connect a Java application to a MySQL database. Class.forName ('') newInstance () Dominick Burch Netbeans 7.2, ClassNotFoundexception InstantationException. When I debug the following program Class.forName('').newInstance() always throw exception.
#Class forname com mysql jdbc driver newinstance install#
If the MySQL JDBC driver jar is not available, or if the jar is missing in the java class path, the exception : will be thrown. I have install mysql and mysql-connector-java-3.1.12-bin.jar on debian. The Class.forName() fails to loads the mysql driver class that is not available in the class path.
The : exception occurs if the MySQL JDBC driver class can not found in the java class path.
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