在eclipse中创建一个连接 - ClassNotFoundException:com.mysql.jdbc.Driver [英] creating a connection in eclipse - ClassNotFoundException: com.mysql.jdbc.Driver
问题描述
该jar是我说的地方($ GLASSFISH_HOME\domains\domain1 \lib\ext),但我得到:
java.lang.ClassNotFoundException:com.mysql.jdbc.Driver
在java.net.URLClassLoader $ 1.run(URLClassLoader.java:366)
在java.net.URLClassLoader $ 1.run(URLClassLoader.java:355)
在java.security.AccessController。 doPrivileged(Native Method)
在java.net.URLClassLoader.findClass(URLClassLoader.java:354)
在java.lang.ClassLoader.loadClass(ClassLoader.java:424)
在java。 net.FactoryURLClassLoader.loadClass(URLClassLoader.java:789)
在java.lang.ClassLoader.loadClass(ClassLoader.java:357)
在org.eclipse.datatools.connectivity.drivers.jdbc.JDBCConnection。 createConnection(JDBCConnection.java:297)
在org.eclipse.datatools .connectivity.DriverConnectionBase.internalCreateConnection(DriverConnectionBase.java:105)
在org.eclipse.datatools.connectivity.DriverConnectionBase.open(DriverConnectionBase.java:54)
在org.eclipse.datatools.connectivity.drivers .jdbc.JDBCConnection.open(JDBCConnection.java:81)
在org.eclipse.datatools.enablement.internal.mysql.connection.JDBCMySQLConnectionFactory.createConnection(JDBCMySQLConnectionFactory.java:28)
在org.eclipse .datatools.connectivity.internal.ConnectionFactoryProvider.createConnection(ConnectionFactoryProvider.java:83)
在org.eclipse.datatools.connectivity.internal.ConnectionProfile.createConnection(ConnectionProfile.java:359)
在org.eclipse .datatools.connectivity.ui.PingJob.createTestConnection(PingJob.java:76)
在org.eclipse.datatools.connectivity.ui.PingJob.run(PingJob.java:59)
在org.eclipse .core.internal.jobs.Worker.run(Worker.java:53)
该链接很可能是MySQL Connector / J的分发版本,该zip内部是 mysql-connector-java-5.1.27-bin.jar
库与驱动程序。所以你需要首先解压缩,然后添加 jar
-library而不是zip。
I am not doing anything in code - I just created an eclipse connection and can't seem to be able to ping it. The connection properties :
The jar is where I say it is ($GLASSFISH_HOME\domains\domain1\lib\ext) but I am getting :
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:789)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.eclipse.datatools.connectivity.drivers.jdbc.JDBCConnection.createConnection(JDBCConnection.java:297)
at org.eclipse.datatools.connectivity.DriverConnectionBase.internalCreateConnection(DriverConnectionBase.java:105)
at org.eclipse.datatools.connectivity.DriverConnectionBase.open(DriverConnectionBase.java:54)
at org.eclipse.datatools.connectivity.drivers.jdbc.JDBCConnection.open(JDBCConnection.java:81)
at org.eclipse.datatools.enablement.internal.mysql.connection.JDBCMySQLConnectionFactory.createConnection(JDBCMySQLConnectionFactory.java:28)
at org.eclipse.datatools.connectivity.internal.ConnectionFactoryProvider.createConnection(ConnectionFactoryProvider.java:83)
at org.eclipse.datatools.connectivity.internal.ConnectionProfile.createConnection(ConnectionProfile.java:359)
at org.eclipse.datatools.connectivity.ui.PingJob.createTestConnection(PingJob.java:76)
at org.eclipse.datatools.connectivity.ui.PingJob.run(PingJob.java:59)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
That zip is very likely the distribution zip of MySQL Connector/J, inside of that zip is the mysql-connector-java-5.1.27-bin.jar
library with the driver. So you need to unzip it first and then add that jar
-library instead of the zip.
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