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Java Source | 2000-05-25 | 3.4 KB | 86 lines |
- //: Lookup.java
- //////////////////////////////////////////////////
- // Copyright (c) Bruce Eckel, 1998
- // Source code file from the book "Thinking in Java"
- // All rights reserved EXCEPT as allowed by the
- // following statements: You can freely use this file
- // for your own work (personal or commercial),
- // including modifications and distribution in
- // executable form only. Permission is granted to use
- // this file in classroom situations, including its
- // use in presentation materials, as long as the book
- // "Thinking in Java" is cited as the source.
- // Except in classroom situations, you cannot copy
- // and distribute this code; instead, the sole
- // distribution point is http://www.BruceEckel.com
- // (and official mirror sites) where it is
- // freely available. You cannot remove this
- // copyright and notice. You cannot distribute
- // modified versions of the source code in this
- // package. You cannot use this file in printed
- // media without the express permission of the
- // author. Bruce Eckel makes no representation about
- // the suitability of this software for any purpose.
- // It is provided "as is" without express or implied
- // warranty of any kind, including any implied
- // warranty of merchantability, fitness for a
- // particular purpose or non-infringement. The entire
- // risk as to the quality and performance of the
- // software is with you. Bruce Eckel and the
- // publisher shall not be liable for any damages
- // suffered by you or any third party as a result of
- // using or distributing software. In no event will
- // Bruce Eckel or the publisher be liable for any
- // lost revenue, profit, or data, or for direct,
- // indirect, special, consequential, incidental, or
- // punitive damages, however caused and regardless of
- // the theory of liability, arising out of the use of
- // or inability to use software, even if Bruce Eckel
- // and the publisher have been advised of the
- // possibility of such damages. Should the software
- // prove defective, you assume the cost of all
- // necessary servicing, repair, or correction. If you
- // think you've found an error, please email all
- // modified files with clearly commented changes to:
- // Bruce@EckelObjects.com. (Please use the same
- // address for non-code errors found in the book.)
- /////////////////////////////////////////////////
-
- // Looks up email addresses in a
- // local database using JDBC
- import java.sql.*;
-
- public class Lookup {
- public static void main(String[] args) {
- String dbUrl = "jdbc:odbc:people";
- String user = "";
- String password = "";
- try {
- // Load the driver (registers itself)
- Class.forName(
- "sun.jdbc.odbc.JdbcOdbcDriver");
- Connection c = DriverManager.getConnection(
- dbUrl, user, password);
- Statement s = c.createStatement();
- // SQL code:
- ResultSet r =
- s.executeQuery(
- "SELECT FIRST, LAST, EMAIL " +
- "FROM people.csv people " +
- "WHERE " +
- "(LAST='" + args[0] + "') " +
- " AND (EMAIL Is Not Null) " +
- "ORDER BY FIRST");
- while(r.next()) {
- // Capitalization doesn't matter:
- System.out.println(
- r.getString("Last") + ", "
- + r.getString("fIRST")
- + ": " + r.getString("EMAIL") );
- }
- s.close(); // Also closes ResultSet
- } catch(Exception e) {
- e.printStackTrace();
- }
- }
- } ///:~