Java POI 生成Excel时显示货币格式，如： 23,332.00

HSSFWorkbook workbook = new HSSFWorkbook();
HSSFSheet sheet = workbook.createSheet("Sheet1");
HSSFRow row = sheet.createRow(0);
HSSFCell cell = row.createCell(0);
HSSFCellStyle currencyStyle = workbook.createCellStyle();
currencyStyle.setDataFormat((short)4);
cell.setCellStyle(currencyStyle);

0, "General"
1, "0"
2, "0.00"
3, "#,##0"
4, "#,##0.00"
5, "$#,##0_);($#,##0)"
6, "$#,##0_);[Red]($#,##0)"
7, "$#,##0.00);($#,##0.00)"
8, "$#,##0.00_);[Red]($#,##0.00)"
9, "0%"
0xa, "0.00%"
0xb, "0.00E+00"
0xc, "# ?/?"
0xd, "# ??/??"
0xe, "m/d/yy"
0xf, "d-mmm-yy"
0x10, "d-mmm"
0x11, "mmm-yy"
0x12, "h:mm AM/PM"
0x13, "h:mm:ss AM/PM"
0x14, "h:mm"
0x15, "h:mm:ss"
0x16, "m/d/yy h:mm"

// 0x17 - 0x24 reserved for international and undocumented 0x25, "#,##0_);(#,##0)"
0x26, "#,##0_);[Red](#,##0)"
0x27, "#,##0.00_);(#,##0.00)"
0x28, "#,##0.00_);[Red](#,##0.00)"
0x29, "_(*#,##0_);_(*(#,##0);_(* /"-/"_);_(@_)"
0x2a, "_($*#,##0_);_($*(#,##0);_($* /"-/"_);_(@_)"
0x2b, "_(*#,##0.00_);_(*(#,##0.00);_(*/"-/"??_);_(@_)"
0x2c, "_($*#,##0.00_);_($*(#,##0.00);_($*/"-/"??_);_(@_)"
0x2d, "mm:ss"
0x2e, "[h]:mm:ss"
0x2f, "mm:ss.0"
0x30, "##0.0E+0"
0x31, "@" - This is text format.
0x31 "text" - Alias for "@"