MS Access で作成した大学のデータベースについて作成している Java プログラムを接続しようとしています。
私のコードは次のようになります。
package Uni;
import java.util.*;
import java.sql.*;
public class College {
static final String database_URL = "H:/CSCI 213/Labs/Lab 11 - 12/src/Uni/Uni.accdb";
static Scanner input = new Scanner(System.in);
static Scanner in = new Scanner(System.in);
@SuppressWarnings("unused")
public static void main(String[] args) {
Connection connection = null;
Statement statement = null;
ResultSet resultset = null;
String name;
int age;
int id;
String choice = "y";
while(choice.equalsIgnoreCase("y")) {
System.out.println("What Would you like to do");
System.out.println("1- Insert");
System.out.println("2- Update");
System.out.println("3- Search");
System.out.println("4- Delete");
System.out.println("5- Exit");
int x = input.nextInt();
try {
connection = DriverManager.getConnection(database_URL);
//connection.commit();
//statement = connection.createStatement();
switch(x) {
case 1:
System.out.println("Enter the name:");
name = input.nextLine();
System.out.println("Enter the Age:");
age = input.nextInt();
//statement.executeQuery("INSERT INTO Database VALUES ('"+name+"','"+age+"')");
Statement sta1 = connection.createStatement();
sta1.executeQuery("INSERT INTO Database VALUES ('"+name+"','"+age+"')");
sta1.close();
System.out.println("Your ID is: ");
//statement.executeQuery("select ID from Database where Name='"+name+"';");
Statement sta2 = connection.createStatement();
sta2.executeQuery("select ID from Database where Name='"+name+"';");
connection.commit();
sta2.close();
break;
case 2:
System.out.println("Enter the id of the person you'd like to update:");
id = input.nextInt();
System.out.println("Enter the name:");
name = input.nextLine();
System.out.println("Enter the Age:");
age = input.nextInt();
//statement.executeUpdate("UPDATE Database SET Age="+age+", Name='"+name+"' WHERE ID="+id+";");
Statement sta3 = connection.createStatement();
sta3.executeQuery("UPDATE Database SET Age="+age+", Name='"+name+"' WHERE ID="+id+";");
connection.commit();
sta3.close();
break;
case 3:
System.out.println("Enter the Name of the person you'd like to search for:");
name = input.nextLine();
//statement.executeQuery("select Name, Age from Database where Name='"+name+"';");
Statement sta4 = connection.createStatement();
sta4.executeQuery("select Name, Age from Database where Name='"+name+"';");
connection.commit();
sta4.close();
break;
case 4:
System.out.println("Enter the id of the person you'd like to delete:");
id = input.nextInt();
//statement.execute("DELETE FROM Database where ID='"+id+"';");
Statement sta5 = connection.createStatement();
sta5.executeQuery("DELETE FROM Database where ID='"+id+"';");
connection.commit();
sta5.close();
break;
case 5:
System.out.println("Terminating");
System.exit(0);
default:
System.out.println("Wrong Entry");
}
}
catch (SQLException e) {
System.out.println("SQLException: "+e.getMessage());
}
System.out.println("Would you like to try again ? (enter y for yes)");
choice = in.nextLine();
}
}
}
正確な出力は次のとおりです
1 - 挿入 2 - 更新 3 - 検索 4 - 削除 5 - 終了 1 SQLException: H:/CSCI 213/Labs/Lab 11 - 12/src/Uni/Uni.accdb に適したドライバーが見つかりませんでしたもう一度やり直しますか？(はいの場合は y を入力してください)
これを解決する方法についてのアイデアは大歓迎です