java连接MySQL数据库报错java.lang.ClassNotFoundException

package org.lxh.condb;
import java.sql.*;

public class conn {
Connection con;
public Connection getConnection(){
try{
Class.forName("net.sourceforge.jtds.jdbc.Driver");
System.out.println("数据库驱动加载成功");
}catch(ClassNotFoundException e){
e.printStackTrace();
}
try{
con = DriverManager.getConnection("jdbc:jtds:"+"sqlserver://localhost:3306/person","root","mysqladmin");
System.out.println("连接成功");
}catch(SQLException e){
e.printStackTrace();
}
return con;
}
public static void main(String[] args){
conn c=new conn();
c.getConnection();
}
}
报错如下：

java.lang.ClassNotFoundException: net.sourceforge.jtds.jdbc.Driver
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at org.lxh.condb.conn.getConnection(conn.java:8)
at org.lxh.condb.conn.main(conn.java:23)
java.sql.SQLException: No suitable driver found for jdbc:jtds:sqlserver://localhost:3306/person
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at org.lxh.condb.conn.getConnection(conn.java:14)
at org.lxh.condb.conn.main(conn.java:23)
求详细的解决办法
我是新手，求说的详细点。另，mysql_connector_java_5.1.30_bin.jar我已经导入工程中，在
Referenced Library下。还要怎么改？

相关了解……