如何在URL中添入信息实现以sysdba方式连接oracle

* Connection Properties Recognized by Oracle jdbc Drivers
* -------------------------------------------------------
* Name                Short Name Type     Description  
* ------------------- ---------- -------- -----------------------------------
* user                n/a        String   The user name for logging into the
*                                         database.
* password            n/a        String   The password for logging into the
*                                         database.
* database            server     String   The connect string for the database.
* internal_logon      n/a        String   A role, such as SYSDBA or SYSOPER,
*                                         that allows you to log on as SYS.
* defaultRowPrefetch  prefetch   String   (containing integer value)  
*                                         The default number of rows to
*                                         prefetch from the server.
*                                         (default value is "10")  
* resReporting    res    String   (containing boolean value)  
*                                         "true" if getTables() and
*                                         getColumns() should report
*                                         TABLE_REMARKS; equivalent to using
*                                         setResReporting().
*                                         (default value is "false")  
* defaultBatchValue   batchvalue String   (containing integer value)  
*                                         The default batch value that triggers
*                                         an execution request.
*                                         (default value is "10")  
* includeSynonyms     synonyms   String   (containing boolean value)
*                                         "true" to include column information
*                                         from predefined "synonym" SQL
*                                         entities when you execute a
*                                         DataBaseMetaData getColumns() call;
*                                         equivalent to connection
*                                         setIncludeSynonyms() call.
*                                         (default value is "false")  
*  
* -----------------------------------------------------------------------------
*/public class ConnectionOptions {    final static String driverClass    = "oracle.jdbc.driver.OracleDriver";
    final static String connectionURL  = "jdbc:oracle:thin:@HUQY:1521:TESTDB";
    final static String userID         = "scott";
    final static String userPassword   = "tiger";
    Connection   con                   = null;
    /**
     * Construct a QueryExample object. This constructor will create an Oracle
     * database connection.
     */
    public ConnectionOptions() {        Properties conProps = new Properties();
        conProps.put("user", userID);
        conProps.put("password", userPassword);
        conProps.put("defaultRowPrefetch", "15");
        conProps.put("internal_logon", "sysdba");        try {            System.out.print("  Loading jdbc Driver  -> " + driverClass + "n");
            Class.forName(driverClass).newInstance();            System.out.print("  Connecting to        -> " + connectionURL + "n");
            this.con = DriverManager.getConnection(connectionURL, conProps);
            System.out.print("  Connected as         -> " + userID + "n");        } catch (ClassNotFoundException e) {
            e.printStackTrace();
            System.exit(1);
        } catch (InstantiationException e) {
            e.printStackTrace();
            System.exit(1);
        } catch (IllegalAccessException e) {
            e.printStackTrace();
            System.exit(1);
        } catch (SQLException e) {
            e.printStackTrace();
            System.exit(1);
        }    }
    ...
}