package sample;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class Main {
public static void main(String[] args) {
try {
Class.forName("org.h2.Driver");
} catch (ClassNotFoundException e) {
throw new IllegalStateException("ドライバのロードに失敗しました");
}
Connection con = null;
try {
con = DriverManager.getConnection("jdbc:h2:~/mydb", "sa", "");
PreparedStatement pstmt = con.prepareStatement("SELECT * FROM MONSTERS WHERE HP >= ?");
pstmt.setInt(1, 20);
ResultSet rs = pstmt.executeQuery();
while (rs.next()) {
System.out.print("現在DBに格納されているモンスターは");
System.out.println(rs.getString("NAME"));
}
rs.close();
pstmt.close();
} catch (SQLException e) {
e.printStackTrace();
} finally {
if (con != null) {
try {
con.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
}
}