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apache poi  date format - xssf

Posted on 2014-02-07
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Last Modified: 2014-02-19
I set up a format for my cel:
  DataFormat df = wb.createDataFormat();

style = createBorderedStyle(wb);
        style.setAlignment(CellStyle.ALIGN_RIGHT);
        style.setFont(font1);
        style.setDataFormat(df.getFormat("dd.MM.yyyy"));
        styles.put("cell_pub_date", style);

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before that I retrieve date from the database in the format cyymmdd, format it:

String year = "20" +  field.substring(1,3);
                        			String month  = field.substring(3,5);
                        			String day   = field.substring(5,7);		

          							SimpleDateFormat sf  = new SimpleDateFormat("dd.MM.yyyy");

                        			String date_s  = day + "." + month + "." + year;
                        			System.out.println(date_s);

                        			try {

										java.util.Date date = sf.parse(date_s);
										System.out.println(date.toString());     
										c.setCellValue(date);
										c.setCellStyle(styles.get("cell_pub_date"));
									}

	
									catch (Exception e)	 {

										System.out.println( );	
									}	

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but the date is comletely out of whack in my excel spreadhseet
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Question by:sniger
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Expert Comment

by:krakatoa
ID: 39843168
What do you mean "out of whack"? What does it look like after it ends up in Excel?
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Accepted Solution

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CEHJ earned 400 total points
ID: 39843189
style.setDataFormat(df.getFormat("dd.MM.yyyy"));

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I don't know this API, but, by the looks, getFormat gets a built-in format. afaics, there isn't such a built-in one:

http://poi.apache.org/apidocs/org/apache/poi/ss/usermodel/BuiltinFormats.html
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Author Comment

by:sniger
ID: 39848624
krakatoa,

I changed the format to m/d/yy in my po style

In java se I assume it is       SimpleDateFormat sf  = new SimpleDateFormat("MM/dd/yyyy");


not for the date:    02/11/2013  I am getting in Excel:    5/29/94
                                 09/10/ 2010                                         3/9/14
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Assisted Solution

by:krakatoa
krakatoa earned 100 total points
ID: 39848844
Let us know if you heeded CEHJ's comment first, if you please.

BTW, 'D' and 'd' are different you realise.
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Author Comment

by:sniger
ID: 39870598
actually, it is not an issue, I had logic error and it did not set the format I expected
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