extractsqlexceptioninfo.java

非常好的java事例以及带源码事例的java2教程

import java.sql.*;

public class ExtractSQLExceptionInfo
{
  public static void main(String[] args)
  {
    String url = "jdbc:odbc:technical_library";
    String driver = "sun.jdbc.odbc.JdbcOdbcDriver";
    String user = "guest";
    String password = "guest";

    String theStatement = "SELECT lastname, firstname FROM autors";

    try
    {
      Class.forName(driver);
      Connection connection = DriverManager.getConnection(url, user, password);
      Statement queryAuthors = connection.createStatement();
      ResultSet theResults =  queryAuthors.executeQuery(theStatement);

      queryAuthors.close();
    }
    catch (ClassNotFoundException cnfe)
    {
      System.err.println(cnfe);
    }
    catch (SQLException sqle)
    {
      String sqlMessage = sqle.getMessage();
      String sqlState  = sqle.getSQLState();
      int vendorCode = sqle.getErrorCode();
      System.err.println("Exception occurred:");
      System.err.println("Message: " + sqlMessage);
      System.err.println("SQL state: " + sqlState);
      System.err.println("Vendor code: " + vendorCode +
                         "\n----------------");
    }
  }
}