How to properly clean up JDBC resources in Java?

Question

What is considered best practices when cleaning up JDBC resources and why? I kept the example short, thus just the cleaning up of the ResultSet.

finally
{
          


        

Answer 1

protected void closeAll(){
        closeResultSet();
        closeStatement();
        closeConnection();
    }   

protected void closeConnection(){
        if (connection != null) {
            try {
                connection.close();
            } catch (SQLException e) {
                /*Logger*/
            }
            connection = null;
        }
    }


    protected void closeStatement() {
        if (stmt != null) {
            try {
                ocstmt.close();
            } catch (SQLException e) {
                /*Logger*/
            }
            ocstmt = null;
        }
    }


    protected void closeResultSet() {
        if (rs != null) {
            try {
                rs.close();
            } catch (SQLException e) {
                /*Logger*/
            }
            rs = null;
        }
    }