Jdbc - Java.Lang.Classnotfoundexception: Com.Mysql.Jdbc.Driver Solution
Wednesday, February 6, 2019
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"java.lang.ClassNotFoundException: com.mysql.jdbc.Driver" is a frequent Exception Java programmer confront piece writing JDBC connectivity code for mysql, specially if y'all are trying to constitute JDBC connector to mysql database showtime time. nosotros receive got touched base of operations on ClassNotFoundException inwards mysql on our before articles how to resolve ClassNotFoundException inwards Java in addition to hither nosotros volition come across inwards particular what causes "java.lang.ClassNotFoundException: com.mysql.jdbc.Driver" in addition to how to develop com.mysql.jdbc.Driver error inwards Java.
Cause of java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
Java Classpath, if JVM doesn't discover this cast afterwards scanning classpath it throws "java.lang.ClassNotFoundException: com.mysql.jdbc.Driver". Possible Cause of "java.lang.ClassNotFoundException: com.mysql.jdbc.Driver"
here are only about of the near possible reasons of "java.lang.ClassNotFoundException: com.mysql.jdbc.Driver" inwards your
code which is based on mistakes often observed:
1) You don't receive got mysql-connector.jar in your Classpath. equally stated before this jounce file contains "com.mysql.jdbc.Driver" cast it must hold out introduce inwards classpath inwards club to successful connector to mysql database. y'all tin forcefulness out downlad mysql-connector.jar from mysql.com.
2) mysql-connector.jar is inwards your classpath but somehow your classpath is getting overridden.
Classpath is tricky inwards Java in addition to classpath specified inwards jounce may override CLASSPATH path variable. See how classpath industrial plant inwards Java to empathize this final result inwards detail.
3) mysql-connector.jar is inwards classpath but electrical current user doesn't receive got read permission.
This employment often happens inwards Unix or Linux operating organization which has sophisticated file in addition to directory permission based on user, grouping in addition to possessor level. only larn the correct permission in addition to run your programme again.
Example of java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
here is a existent sample coffee code which volition throw java.lang.ClassNotFoundException: com.mysql.jdbc.Driver when run
because it doesn't had mysql-connector.jar inwards its classpath. worth remembering is that java.lang.ClassNotFoundException: com.mysql.jdbc.Driver comes when y'all use Class.forName("com.mysql.jdbc.Driver") code to charge JDBC driver, if y'all are using DriverManager.getConnection("com.mysql.jdbc.driver" ,"root", "root") than it volition throw dissimilar exception like
Exception inwards thread "main" java.sql.SQLException: No suitable driver found for com.mysql.jdbc.Driver
at java.sql.DriverManager.getConnection(DriverManager.java:602)
at java.sql.DriverManager.getConnection(DriverManager.java:602)
Here is sample Java programme which volition throw java.lang.ClassNotFoundException: com.mysql.jdbc.Driver if y'all run this without having mysql JDBC dirver inwards your classpath.
public class MySQLConnectionExample {
public static void main(String args[]) throws SQLException {
Connection mysqlCon = null;
try {
Class.forName("com.mysql.jdbc.Driver");
mysqlCon = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "root");
} catch (Exception e) {
System.out.println(e);
}
}
Output: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
public static void main(String args[]) throws SQLException {
Connection mysqlCon = null;
try {
Class.forName("com.mysql.jdbc.Driver");
mysqlCon = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "root");
} catch (Exception e) {
System.out.println(e);
}
}
Output: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
That’s all on how to develop java.lang.ClassNotFoundException: com.mysql.jdbc.Driver, nosotros receive got seen possible reasons of getting this Exception inwards Java JDBC code in addition to instantly familiar alongside how to develop this.
Further Learning
JSP, Servlets in addition to JDBC for Beginners: Build a Database App
Complete JDBC Programming Part 1 in addition to 2
Java Exception in addition to troubleshooting tutorial y'all may like:
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