voteconn.java

该源码为JSP的开发案例集锦

package ch9;
import java.sql.*;

public class VoteConn {
    	String dbUrl = "jdbc:mysql://localhost/csnews";
	String dbUser = "root";
 	String dbPassword = "";
	Connection connect = null;
	ResultSet rs = null;

	public VoteConn() {
		try {
			Class.forName("org.gjt.mm.mysql.Driver"); 
		}
		catch(java.lang.ClassNotFoundException e) {
			System.err.println( e.getMessage());
		}
	}
	public ResultSet executeQuery(String sql) {
		try {
			connect = DriverManager.getConnection(dbUrl,dbUser,dbPassword); 
			Statement stm = connect.createStatement();
			rs = stm.executeQuery(sql);
		} 
		catch(SQLException ex) { 
			System.err.println(ex.getMessage());
		}
		return rs;
	}
	public int executeUpdate(String sql) {
		int result = 0;
		try {
			connect = DriverManager.getConnection(dbUrl,dbUser,dbPassword); 
			Statement stmt = connect.createStatement();
			result = stmt.executeUpdate(sql);
		} 
		catch(SQLException ex) { 
			System.err.println(ex.getMessage());
		}
		return result;
	}	
}