- public void groupRow(int fromRow, int toRow)
- public void setRowGroupCollapsed(int rowIndex, boolean collapse)
Source code for ExcelGroupData.java
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 | package com.as400samplecode; import java.io.FileOutputStream; import org.apache.poi.xssf.usermodel.XSSFCellStyle; import org.apache.poi.xssf.usermodel.XSSFSheet; import org.apache.poi.xssf.usermodel.XSSFWorkbook; import org.apache.poi.ss.usermodel.Cell; import org.apache.poi.ss.usermodel.CellStyle; import org.apache.poi.ss.usermodel.Font; import org.apache.poi.ss.usermodel.IndexedColors; import org.apache.poi.ss.usermodel.Row; import org.apache.poi.ss.usermodel.Workbook; public class ExcelGroupData { public static void main(String[] args) { String excelFilename = null ; ExcelGroupData myExcel = new ExcelGroupData(); if (args.length < 1 ) { System.err.println( "Usage: java " + myExcel.getClass().getName()+ " Excel_Filename" ); System.exit( 1 ); } excelFilename = args[ 0 ].trim(); myExcel.generateExcel(excelFilename); } public void generateExcel(String excelFilename){ try { //New Workbook Workbook wb = new XSSFWorkbook(); Cell c = null ; //Cell style for header row CellStyle cs = wb.createCellStyle(); cs.setFillForegroundColor(IndexedColors.LIME.getIndex()); cs.setFillPattern(XSSFCellStyle.SOLID_FOREGROUND); Font f = wb.createFont(); f.setBoldweight(Font.BOLDWEIGHT_BOLD); f.setFontHeightInPoints(( short ) 12 ); cs.setFont(f); //Cell style for summary row CellStyle css = wb.createCellStyle(); f = wb.createFont(); f.setBoldweight(Font.BOLDWEIGHT_BOLD); f.setFontHeightInPoints(( short ) 10 ); css.setFont(f); //New Sheet XSSFSheet sheet1 = null ; sheet1 = (XSSFSheet) wb.createSheet( "myData" ); // Row and column indexes int idx = 0 ; int idy = 0 ; //Generate column headings Row row = sheet1.createRow(idx); c = row.createCell(idy); c.setCellValue( "Customer" ); c.setCellStyle(cs); sheet1.setColumnWidth(idy, 10 * 500 ); idy++; c = row.createCell(idy); c.setCellValue( "Order Number" ); c.setCellStyle(cs); sheet1.setColumnWidth(idy, 10 * 500 ); idy++; c = row.createCell(idy); c.setCellValue( "Order Total" ); c.setCellStyle(cs); sheet1.setColumnWidth(idy, 10 * 500 ); idy++; //Skip 2 rows and reset column idx = idx + 3 ; idy = 0 ; //Populate detail row data int firstRow = idx + 1 ; row = sheet1.createRow(idx); c = row.createCell(idy); c.setCellValue( "ABC" ); idy++; c = row.createCell(idy); c.setCellValue( "101" ); idy++; c = row.createCell(idy); c.setCellValue( 10.99 ); idy++; //Next row and reset column idx = idx + 1 ; idy = 0 ; //Populate detail row data row = sheet1.createRow(idx); c = row.createCell(idy); c.setCellValue( "ABC" ); idy++; c = row.createCell(idy); c.setCellValue( "102" ); idy++; c = row.createCell(idy); c.setCellValue( 22.23 ); idy++; //Next row and reset column idx = idx + 1 ; idy = 0 ; //Populate detail row data int lastRow = idx + 1 ; row = sheet1.createRow(idx); c = row.createCell(idy); c.setCellValue( "ABC" ); idy++; c = row.createCell(idy); c.setCellValue( "103" ); idy++; c = row.createCell(idy); c.setCellValue( 100.33 ); idy++; //Next row and reset column idx = idx + 1 ; idy = 0 ; //Populate summary row data row = sheet1.createRow(idx); c = row.createCell(idy); c.setCellValue( "ABC" ); c.setCellStyle(css); idy++; c = row.createCell(idy); c.setCellValue( "" ); c.setCellStyle(css); idy++; c = row.createCell(idy); String myFormula = "SUM(" + getColumnName(idy) + firstRow + ":" + getColumnName(idy) + lastRow + ")" ; c.setCellType(Cell.CELL_TYPE_FORMULA); c.setCellFormula(myFormula); c.setCellStyle(css); idy++; //Group the Rows together sheet1.groupRow(firstRow- 1 ,lastRow- 1 ); sheet1.setRowGroupCollapsed(firstRow- 1 , true ); FileOutputStream fileOut = new FileOutputStream(excelFilename.trim()); wb.write(fileOut); fileOut.close(); } catch (Exception e) { System.out.println(e); } } private String getColumnName( int columnNumber) { String columnName = "" ; int dividend = columnNumber + 1 ; int modulus; while (dividend > 0 ){ modulus = (dividend - 1 ) % 26 ; columnName = ( char )( 65 + modulus) + columnName; dividend = ( int )((dividend - modulus) / 26 ); } return columnName; } } |
To ungroup the rows and expand the rows use the following methods
- public void ungroupRow(int fromRow, int toRow)
- public void setRowGroupCollapsed(int rowIndex, false)
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