JDBC与MySQL连接

package jdbcTest;

import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Statement;

/**
 * @author 陈海宇 E-mail:21haiyu21@163.com
 * @version 创建时间:Oct 11, 2008 8:48:16 AM
 */
public class DBOperate {

    Connection conn = null;

    String url = "jdbc:mysql://localhost:3306/message";
    String driver = "com.mysql.jdbc.Driver";
    String user = "root";
    String password = "sa";

    public DBOperate() {
        Connect();
    }

    public void Connect() {
        try {
            Class.forName(driver);
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
        try {
            conn = DriverManager.getConnection(url, user, password);
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    public Statement getStatement(String sql) {
        try {
            return conn.createStatement();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    public PreparedStatement getPreparedStatement(String sql) {
        try {
            return conn.prepareStatement(sql);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    public CallableStatement getCallableStatement(String sql) {
        try {
            return conn.prepareCall(sql);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }
}