コード例 #1
0
  public DataBaseManagement(String driver, String dbURL) {

    try {
      this.dbURL = dbURL;
      Class.forName(driver).newInstance();
      conn = DriverManager.getConnection(dbURL);

    } catch (InstantiationException
        | IllegalAccessException
        | ClassNotFoundException
        | SQLException e) {
      // TODO Auto-generated catch block

      if (e instanceof SQLException) {

        SQLException sqle = (SQLException) e;
        if (sqle.getSQLState().equals("XJ040")) {

          sqle = sqle.getNextException();
          if (sqle.getSQLState().equals("XSDB6")) {

            logger.error(sqle.getMessage() + " Please shutdown that other instance of Derby.");
          }
        }
      } else {

        CustomException.errorPrint(e);
      }
    }
  }
コード例 #2
0
ファイル: Foraccess.java プロジェクト: LeoEatle/MIS_java
 public static void main(String args[]) {
   try {
     Class.forName("sun.jdbc.odbc.JdbcOdbcDriver").newInstance();
     String url = "jdbc:Access:///c:/a/db.mdb";
     conn = DriverManager.getConnection(url, "", "");
   } catch (Exception e) {
     e.printStackTrace();
   }
 }
コード例 #3
0
ファイル: SmartcardUsers.java プロジェクト: bgradis/LoginPage
  /** @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */
  protected void doGet(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {
    // TODO Auto-generated method stub
    response.setContentType("application/json");

    JSONArray jsonArray = new JSONArray();

    Connection c = null;
    Statement stmt = null;
    try {
      File path = new File(getServletContext().getRealPath("db.sqlite"));
      Class.forName("org.sqlite.JDBC");
      c = DriverManager.getConnection("jdbc:sqlite:" + path);
      c.setAutoCommit(false);
      stmt = c.createStatement();
      ResultSet rs = stmt.executeQuery("SELECT * FROM smartcard_users;");
      while (rs.next()) {
        int total_rows = rs.getMetaData().getColumnCount();
        JSONObject obj = new JSONObject();
        for (int i = 0; i < total_rows; i++) {
          String columnName = rs.getMetaData().getColumnLabel(i + 1).toLowerCase();
          Object columnValue = rs.getObject(i + 1);
          // if value in DB is null, then we set it to default value
          if (columnValue == null) {
            columnValue = "null";
          }
          /*
           * Next if block is a hack. In case when in db we have
           * values like price and price1 there's a bug in jdbc - both
           * this names are getting stored as price in ResulSet.
           * Therefore when we store second column value, we overwrite
           * original value of price. To avoid that, i simply add 1 to
           * be consistent with DB.
           */

          obj.put(columnName, columnValue);
        }
        jsonArray.add(obj);
      }
      rs.close();
      stmt.close();
      c.close();

    } catch (Exception e) {
      System.err.println(e.getClass().getName() + ": " + e.getMessage());
      System.exit(0);
    }

    PrintWriter out = response.getWriter();
    out.print(jsonArray);
    out.close();
  }
コード例 #4
0
  public static void main(String args[]) {
    Connection c = null;
    Statement stmt = null;
    try {
      String decodedPath =
          URLDecoder.decode(
              javaconnect.class.getProtectionDomain().getCodeSource().getLocation().getPath(),
              "UTF-8");
      String purl = decodedPath.substring(0, decodedPath.lastIndexOf("/"));

      Class.forName("org.sqlite.JDBC");
      String name = "atp_01";
      // String url = "jdbc:sqlite:" + name;
      String url = "jdbc:sqlite:" + purl + "/database/" + name + ".db";
      c = DriverManager.getConnection(url);
      System.out.println("Opened database successfully");
      System.out.println(url);

      // main table
      stmt = c.createStatement();
      String login_atp =
          "CREATE TABLE IF NOT EXISTS login_atp ("
              + "idlogin_atp INT NOT NULL, "
              + "first_name_logi VARCHAR(45) NULL, "
              + "last_name_logi VARCHAR(45) NULL,"
              + "username_logi VARCHAR(45) NOT NULL,"
              + "password_logi VARCHAR(45) NOT NULL,"
              + "address_logi VARCHAR(45) NULL,"
              + "email_logi VARCHAR(45) NULL,"
              + "phone_logi VARCHAR(45) NULL,"
              + "PRIMARY KEY (idlogin_atp))";
      stmt.executeUpdate(login_atp);

      String sql =
          "INSERT INTO login_atp (idlogin_atp,first_name_logi,last_name_logi,"
              + "username_logi,password_logi) VALUES (1, 'Trinh', 'Mau', 'dmautrinh',"
              + " '123')";
      stmt.executeUpdate(sql);

      stmt.close();
      c.close();
    } catch (Exception e) {
      System.err.println(e.getClass().getName() + ": " + e.getMessage());
      System.exit(0);
    }
    System.out.println("Table created successfully");
  }
コード例 #5
0
  /**
   * populate round and sequence with the latest round and generated sequence based on the number of
   * trucks
   *
   * @param number of trucks
   * @throws SQLException
   */
  private static void initiate(int size) {
    // TODO Auto-generated method stub
    Statement st = null;
    ResultSet rs1 = null;
    ResultSet rs2 = null;
    ResultSet rs3 = null;
    try {
      Class.forName("org.postgresql.Driver");
      st = conn.createStatement();

      // Sql to retrieve last roundnum last:
      String sql1 = "SELECT MAX(round_number) FROM rounds WHERE year = " + year;
      rs1 = st.executeQuery(sql1);
      rs1.next();
      int last = rs1.getInt(1);
      round = last + 1;
      // Create new round
      String sql2 = "INSERT INTO rounds (year, round_number) values (" + year + ", " + round + ")";
      st.executeUpdate(sql2);
      // Create new sequence based on food truck
      for (int i = 1; i < size + 1; i++) {
        String temp = getSeqQuery(i, round);
        st.executeUpdate(temp);
      }
      // insert into Lottery
      // Get truck name and email for lottery insert
      Map<Integer, String[]> truckinfo = new HashMap<Integer, String[]>();
      String sql4 = "SELECT owner_name, email, id FROM foodtruck";
      rs2 = st.executeQuery(sql4);
      while (rs2.next()) {
        String name = rs2.getString(1).trim();
        String email = rs2.getString(2).trim();
        int id = rs2.getInt(3);
        String[] temp = {name, email};
        truckinfo.put(id, temp);
      }
      // insert into lottery
      insertLottery(truckinfo);
    } catch (SQLException e) {
      e.printStackTrace();
    } catch (ClassNotFoundException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }
  }
コード例 #6
0
  /** @param args */
  public static void main(String[] args) {
    Connection db = null;
    try {
      Class.forName("org.gjt.mm.mysql.Driver").newInstance();
    } catch (Exception e) {
      System.out.println("Driver not loaded!");
    }
    try {
      db =
          java.sql.DriverManager.getConnection(
              "jdbc:mysql://mysql.stud.ntnu.no/bjorfoss_test", "bjorfoss_test", "klovn665");
    } catch (SQLException e) {
      // TODO Auto-generated catch block
      System.out.println("Can't connect to database!");
      e.printStackTrace();
    }

    try {
      Statement st = db.createStatement();
      ResultSet rs;
      String[] columns = {"id", "fastmontert"};
      String[] types = {"int NOT NULL AUTO_INCREMENT", "varchar(20) NOT NULL"};
      st.execute(createTable("inventar", columns, types));
      //			rs = st.executeQuery("SELECT * FROM kunder");
      //			while(rs.next()){
      //			   String fornavn = rs.getString("fornavn");
      //			   String etternavn = rs.getString("etternavn");
      //			   System.out.println(fornavn + " " + etternavn);
      //			}
      //			db.close();
      rs = st.executeQuery("SELECT * FROM inventar");
      while (rs.next()) {
        String fornavn = rs.getString("id");
        String etternavn = rs.getString("fastmontert");
        System.out.println(fornavn + " " + etternavn);
      }
      db.close();
    } catch (Exception e) {
      System.out.println("Shit happened!");
      e.printStackTrace();
    }
  }
コード例 #7
0
ファイル: DBConnection.java プロジェクト: ustadho/Toko-Obat
  public DBConnection(String user, String pass, Component fThis) {
    {
      try {
        url = new StringBuilder();
        url.append("jdbc:postgresql://");
        url.append(resources.getString("server"));
        url.append(":");
        url.append("5432");
        url.append("/");
        url.append(resources.getString("database"));

        System.out.println(url);
        Class.forName("org.postgresql.Driver");
        con = DriverManager.getConnection(url.toString(), user, pass);

        bError = true;
      } catch (java.sql.SQLException se) {
        JOptionPane jfo = new JOptionPane(se.getMessage(), JOptionPane.INFORMATION_MESSAGE);
        JDialog dialog = jfo.createDialog(fThis, "Message");
        dialog.setModal(true);
        dialog.setVisible(true);
        bError = false;
        // System.exit(1);
      } catch (ClassNotFoundException ce) {
        JOptionPane jfo = new JOptionPane(ce.getMessage(), JOptionPane.INFORMATION_MESSAGE);
        JDialog dialog = jfo.createDialog(fThis, "Message");
        dialog.setModal(true);
        dialog.setVisible(true);
        bError = false;
        // System.exit(1);
      } finally {
        //                try {
        //                    in.close();
        //                } catch (IOException ex) {
        //                    Logger.getLogger(DBConnection.class.getName()).log(Level.SEVERE, null,
        // ex);
        //                }
      }
    }
  }
コード例 #8
0
ファイル: DBWork.java プロジェクト: gribozi/RRevisor
  // Возвращает соединение с БД, которое будем использовать в последующих методах
  private static Connection getDBConnection() throws Exception {

    String JDBC_DRIVER = "org.gjt.mm.mysql.Driver";
    String DB_URL = "jdbc:mysql://localhost/revisor";

    // Способ здания параметров подключения к БД через класс Properties
    // Это нужно, что бы задать кодировку подключения, а не только логин и пароль
    Properties properties = new Properties();
    properties.setProperty("user", "root");
    properties.setProperty("password", "root");
    /*
    Настройки указывающие о необходимости конвертировать данные из Unicode
    в UTF-8, который используется в нашей таблице для хранения данных
    */
    properties.setProperty("useUnicode", "true");
    properties.setProperty("characterEncoding", "UTF-8");

    Class.forName(JDBC_DRIVER);
    return DriverManager.getConnection(DB_URL, properties);
    // Обычный, простой формат Коннекшена
    // return = DriverManager.getConnection(DB_URL, "root", "root");
  }
コード例 #9
0
  private static void insertLottery(Map<Integer, String[]> truckinfo) {
    try {
      Class.forName("org.postgresql.Driver");
      Statement st = conn.createStatement();

      // randomly generate order
      Collections.shuffle(data);
      int position = 0;
      while (position < data.size()) {
        int temp = data.get(position);
        String s = getLotteryQuery(temp, truckinfo, position + 1);
        st.executeUpdate(s);
        position++;
      }
    } catch (SQLException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (ClassNotFoundException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }
  }