与 Oracle 连接的 Netbeans java.lang.ClassNotFoundException
我使用 NetBeans 6.5。
当我尝试运行以下代码时:
package com.afrikbrain.numeroteur16;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author
*/
public class NumeroteurTest {
public NumeroteurTest() {
}
public void doIt() throws ClassNotFoundException{
try {
Class.forName("oracle.jdbc.OracleDriver");
Connection connection = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:XE","user","pwd");
String newNUMERO = new Numeroteur16("MATCLI", connection).numeroter();
System.out.println("NUMERO GENERE : "+newNUMERO.toString());
}
catch (SQLException ex) {
Logger.getLogger(NumeroteurTest.class.getName()).log(Level.SEVERE, null, ex);
ex.printStackTrace();
}
catch (NumException ex) {
System.out.println(ex.getMessage());
ex.printStackTrace();
}
}
public static void main(String[] args){
try {
new NumeroteurTest().doIt();
} catch (ClassNotFoundException ex) {
Logger.getLogger(NumeroteurTest.class.getName()).log(Level.SEVERE, null, ex);
System.out.println("Driver not found.");
}
}
}
我收到此错误:
java.lang.ClassNotFoundException: oracle.jdbc.OracleDriver
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at com.afrikbrain.numeroteur16.NumeroteurTest.doIt(NumeroteurTest.java:27)
at com.afrikbrain.numeroteur16.NumeroteurTest.main(NumeroteurTest.java:45)
Driver not found.
如何解决此问题?
I use NetBeans 6.5.
When I try to run the following code:
package com.afrikbrain.numeroteur16;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author
*/
public class NumeroteurTest {
public NumeroteurTest() {
}
public void doIt() throws ClassNotFoundException{
try {
Class.forName("oracle.jdbc.OracleDriver");
Connection connection = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:XE","user","pwd");
String newNUMERO = new Numeroteur16("MATCLI", connection).numeroter();
System.out.println("NUMERO GENERE : "+newNUMERO.toString());
}
catch (SQLException ex) {
Logger.getLogger(NumeroteurTest.class.getName()).log(Level.SEVERE, null, ex);
ex.printStackTrace();
}
catch (NumException ex) {
System.out.println(ex.getMessage());
ex.printStackTrace();
}
}
public static void main(String[] args){
try {
new NumeroteurTest().doIt();
} catch (ClassNotFoundException ex) {
Logger.getLogger(NumeroteurTest.class.getName()).log(Level.SEVERE, null, ex);
System.out.println("Driver not found.");
}
}
}
I get this error:
java.lang.ClassNotFoundException: oracle.jdbc.OracleDriver
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at com.afrikbrain.numeroteur16.NumeroteurTest.doIt(NumeroteurTest.java:27)
at com.afrikbrain.numeroteur16.NumeroteurTest.main(NumeroteurTest.java:45)
Driver not found.
How do I solve this problem?
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问题:Java 找不到 JDBC 驱动程序类。
解决方案:将 Oracle JDBC 驱动程序添加到您的类路径中。
您可以在 http://www.oracle.com 获取它/technology/software/tech/java/sqlj_jdbc/index.html
使用
java -classpath ojdbc14.jar ...
启动 java,将下载的 jar 包含在类路径中。The problem: Java can't find the JDBC Driver Class.
Solution: Add the Oracle JDBC Driver to your classpath.
You can get it at http://www.oracle.com/technology/software/tech/java/sqlj_jdbc/index.html
Start java with
java -classpath ojdbc14.jar ...
to include the downloaded jar in your classpath.将
ojdbc6.jar
添加到项目库中。 首先,创建一个新库 (NetBeans):%ORACLE_HOME%\jdbc\lib\ojdbc6.jar
,然后确认。 在我的计算机上,ORACLE_HOME=c:\app\admin\product\11.2.0\dbhome_1
。最后,将库添加到项目中:右键单击Libraries,选择添加库并选择之前添加的库。
Add
ojdbc6.jar
to the project libraries. First, create a new library (NetBeans):%ORACLE_HOME%\jdbc\lib\ojdbc6.jar
, then confirm. On my computer,ORACLE_HOME=c:\app\admin\product\11.2.0\dbhome_1
.Finally, add the library to the project: Right-click on Libraries, , select Add library and select the library previously added.
确保 Oracle 驱动程序位于类路径中。 瘦驱动程序位于 ojdbc14.jar 中。
Make sure that the Oracle driver is in the classpath. The thin driver is in ojdbc14.jar.