BaseDao.java

package com.farsunset.ichat.dao;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class BaseDao {

	public static Connection getConnection() {
		String driver = "com.mysql.jdbc.Driver";
		String url = "jdbc:mysql://localhost:3306/cim";
		String user = "root";
		String password = "root";
		Connection conn = null;
		try {
			Class.forName(driver);
			conn = DriverManager.getConnection(url, user, password);
		} catch (ClassNotFoundException e) {
			e.printStackTrace();
		} catch (SQLException e) {
			e.printStackTrace();
		}
		return conn;
	}

	public static void closeAll(Connection conn, PreparedStatement ps,
			ResultSet rs) {
		try {
			if (rs != null) {
				rs.close();
			}
			if (ps != null) {
				ps.close();
			}
			if (conn != null) {
				conn.close();
			}
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}