JDBC resource release details

    public static void Close(ResultSet rs, PreparedStatement pstmt, Connection conn) {
        try {
            if (rs != null) {　　//ResultSet对象
                rs.close();
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
        try {
            if (pstmt != null) {　　//PreparedStatement对象
                rs.close();
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
  
        try {
            if (conn != null) {     //Connection对象
                rs.close();
            }
        } catch (SQLException e) {
            e.printStackTrace (); 
        } 
}

Written two

public static void Close(ResultSet rs, PreparedStatement pstmt, Connection conn) {
        try {
            if (rs != null) {   //ResultSet对象
                rs.close();
            }
            if (pstmt != null) {    //PreparedStatement对象
                rs.close();
            }
            if (conn != null) {     //Connection对象
                rs.close();
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

Please Gangster two pointing error code