Harde之家

import java.sql.*;
 
/**
 * @author Harde
 *
 */
public class ConnectionManager {
 
	/**
	 * 
	 */
	public ConnectionManager() {
		// TODO Auto-generated constructor stub
	}
 
	public static final String DRIVER_CLASS = "com.microsoft.sqlserver.jsdc.SQLServerDriver";
	public static final String DRIVER_URL = "jdbc:sqlserver://localhost:1433;DatabaseName=Storage";
	public static final String USERNAME = "数据库用户名";
	public static final String PASSWORD = "数据库用户的密码";
 
	//获得数据库连接
	public Connection GetConnection()
	{
		Connection con=null;
		try {
			Class.forName(DRIVER_CLASS);
			try {
				con = DriverManager.getConnection(DRIVER_URL,USERNAME,PASSWORD);
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return con;
	}
	//关闭数据库连接
	public void closeConnection(Connection con){
		if(con!=null){
			try {
				con.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
 
	//关闭结果集
	public void closeResultSet(ResultSet rs){
		if(rs!=null){
			try {
				rs.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
 
	//关闭Statement数据库操作对象
	public void closeStatement(Statement st){
		if(st!=null){
			try {
				st.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
 
	//关闭PreparedStatement数据库操作对象
	public void closePreparedStatement(PreparedStatement ps){
		if(ps!=null){
			try {
				ps.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
 
 
}