已经将mysql-connector-java-5.1.18-bin.jar发在了D:\Program Files\Java\jdk1.7.0\lib里,
而且添加了CLASSPATH==.;%JAVA_HOME%\lib\tools.jar;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\bin;%JAVA_HOME%\lib\mysql-connector-java-5.1.18-bin.jar;
JAVA_HOME=D:\Program Files\Java\jdk1.7.0
但在Jcreator中运行以下代码import java.sql.*;public class LoadDriver {
public static void main(String[] args) {
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
} catch (Exception e) {
e.printStackTrace(); }
}
}结果是
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:186)
at LoadDriver.main(LoadDriver.java:23)
请大家指点!
而且添加了CLASSPATH==.;%JAVA_HOME%\lib\tools.jar;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\bin;%JAVA_HOME%\lib\mysql-connector-java-5.1.18-bin.jar;
JAVA_HOME=D:\Program Files\Java\jdk1.7.0
但在Jcreator中运行以下代码import java.sql.*;public class LoadDriver {
public static void main(String[] args) {
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
} catch (Exception e) {
e.printStackTrace(); }
}
}结果是
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:186)
at LoadDriver.main(LoadDriver.java:23)
请大家指点!
解决方案 »
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