conn.java

来自「一些jsp源代码 可以帮助初学者更容易上手」· Java 代码 · 共 44 行

package download;
import java.sql.*;
public class conn {
	String sDBDriver = "sun.jdbc.odbc.JdbcOdbcDriver";
	String sConnStr = "jdbc:odbc:download";
	Connection connect = null;
	ResultSet rs = null;

	public conn() {
		try {
			Class.forName(sDBDriver); 
		}
		catch(java.lang.ClassNotFoundException e) {
			System.err.println( e.getMessage());
		}
	}
	
	public ResultSet executeQuery(String sql) {
		try {
			connect = DriverManager.getConnection(sConnStr); 
			Statement stmt = connect.createStatement(ResultSet.TYPE_FORWARD_ONLY,ResultSet.CONCUR_READ_ONLY);
			rs = stmt.executeQuery(sql);
		} 
		catch(SQLException ex) { 
			System.err.println(ex.getMessage());
		}
		return rs;
	}
	
	public int executeUpdate(String sql) {
		int result = 0;
		try {
			connect = DriverManager.getConnection(sConnStr); 
			Statement stmt = connect.createStatement();
			result = stmt.executeUpdate(sql);
		} 
		catch(SQLException ex) { 
			System.err.println(ex.getMessage());
		}
		return result;
	}
	
}