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POI set the data format of the column (valid)
2022-07-05 13:58:00 【Programming Xiaobai who loves Java】
Post code explanation directly , Try it yourself !
// Format text
HSSFCellStyle textStyleNum = workbook.createCellStyle();
textStyleNum.setDataFormat(HSSFDataFormat.getBuiltinFormat("@"));
// Date format
HSSFDataFormat format= workbook.createDataFormat();
textStyleNum.setDataFormat(format.getFormat("yyyy year m month d Japan "));
// Keep two decimal places
textStyleNum.setDataFormat(HSSFDataFormat.getBuiltinFormat("0.00"));
// The first parameter refers to which column is set , The second parameter refers to HSSFCellStyle object
sheet.setDefaultColumnStyle(2, textStyleNum);
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