问编写java程序连接DB2和获取数据时出现“未找到类”运行时错误

EN

import java.sql.*;  

public class JDBCexample {  
  public static void main(String[] args)
  {
    Connection con = null;  
    try {  
          Class.forName("com.ibm.as400.access.AS400JDBCDriver);  
        }
    catch(ClassNotFoundException e)
        {  
          System.out.println(e);  
          System.exit(0);  
        }  
    try {  
          con = DriverManager.getConnection("jdbc:as400://yourserver", "yourUserId","yourPassword");  

          Statement stmt = con.createStatement();  
          ResultSet rs = stmt.executeQuery("SELECT * FROM YOURLIB.YOUR_PF_FILE");  

          while (rs.next())
         {  

                  String field1 = rs.getString(1);  
                  String field2 = rs.getString("fieldname");  


          }
           rs.close();
           stmt.close();
           con.close();
       }
          catch(Exception e)
          {  

          }  

          }  
}