代码:
package DBTest;import java.sql.*;
public class DBTest {
public static void main(String[] args) {
String driver = "com.mysql.jdbc.Driver";
String url = "jdbc:mysql://localhost:3306/AddressBook";
String user = "root";
String password = "123456";
try {
Class.forName(driver);
Connection conn = DriverManager.getConnection(url, user, password);
if(!conn.isClosed())
System.out.println("数据库连接成功!");
conn.close();
}
catch(ClassNotFoundException e) {
System.out.println("找不到驱动程序");
e.printStackTrace();
}
catch(SQLException e) {
e.printStackTrace();
}
}
}出现如下错误Exception in thread "main" java.lang.NoClassDefFoundError: org/aspectj/lang/Sign
ature
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:141)
at DBTest.DBTest.main(DBTest.java:12)
Press any key to continue...
该如何解决?
package DBTest;import java.sql.*;
public class DBTest {
public static void main(String[] args) {
String driver = "com.mysql.jdbc.Driver";
String url = "jdbc:mysql://localhost:3306/AddressBook";
String user = "root";
String password = "123456";
try {
Class.forName(driver);
Connection conn = DriverManager.getConnection(url, user, password);
if(!conn.isClosed())
System.out.println("数据库连接成功!");
conn.close();
}
catch(ClassNotFoundException e) {
System.out.println("找不到驱动程序");
e.printStackTrace();
}
catch(SQLException e) {
e.printStackTrace();
}
}
}出现如下错误Exception in thread "main" java.lang.NoClassDefFoundError: org/aspectj/lang/Sign
ature
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:141)
at DBTest.DBTest.main(DBTest.java:12)
Press any key to continue...
该如何解决?
mysql也装好了呀
http://www.blogjava.net/rickhunter/articles/14605.html