Re: werid problem, please help, thanks very much!!!

my whole method is :


private static final String driver = "com.mysql.jdbc.Driver";
	    private static final String dbName="Umbrella";
	    private static final String connectionURL =
"jdbc:mysql://localhost:3306/" + dbName;
	    
	    Connection conn = null;
	    
	    public Connection getConnection()
	    {
	    	 //   Beginning of JDBC code sections   
	        //   ## LOAD DRIVER SECTION ##
	        try	        {
	            Class.forName(driver); 
	            System.out.println(driver + " loaded. ");
	        } catch(java.lang.ClassNotFoundException e)     {
	            System.err.print("ClassNotFoundException: ");
	            System.err.println(e.getMessage());
	            System.out.println("\n    >>> Please check your CLASSPATH
variable   <<<\n");
	        }
	        
	    	   //  Beginning of Primary DB access section
	        //   ## BOOT DATABASE SECTION ##
	       try {
	    	conn = DriverManager.getConnection(connectionURL, "root", "raymoney");	
	    	System.out.println("URL: " + connectionURL);
	        System.out.println("Connection: " + conn);

	    	 //  Beginning of the primary catch block: uses errorPrint method
	         }  catch (Throwable e)  {   
	            /*       Catch all exceptions and pass them to 
	            **       the exception reporting method             */
	            System.out.println(" . . . . . .exception thrown:");
	            errorPrint(e);
	         }
	         System.out.println("Getting Started With MySql JDBC program
ending.");
	         
	         return conn;
	    }
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