Java Connection示例

示例#1

文件： Main.java 项目： 8CAKE/ALE

  public boolean validLogin(String username, String password) {
    boolean validUser = false;
    try {

      dbStm =
          dbCon.prepareStatement(
              "SELECT * FROM userInfo WHERE username = "******"\"" + username + "\"" + ";");

      dbRs = dbStm.executeQuery();

      while (dbRs.next()) {
        String un = "";
        String pw = "";

        un = dbRs.getString("username");
        System.out.println(un + " " + username);
        pw = dbRs.getString("password");
        System.out.println(pw + " " + password);

        if (((username.equals(un) == true) && ((password.equals(pw) == true)))) {
          validUser = true;
          System.out.println("Valid User");
        }
      }

    } catch (Exception e) {
      e.printStackTrace();
    }

    return validUser;
  }

示例#2

文件： Main.java 项目： 8CAKE/ALE

  public void systemClose() {

    if (client.isConnected == true) {
      client.disconnect(messageArea, messageInputArea, superUser);
    }

    try {
      if (dbCon != null) {
        dbCon.close();
      }
    } catch (Exception e) {
      e.printStackTrace();
    }
    System.exit(0);
  }