创建透视表

// 创建一个workbook
Workbook workbook = new Workbook();

Object sourceData = new Object[][]{
        {"Order ID", "Product", "Category", "Amount", "Date", "Country"},
        {1, "Bose 785593-0050", "Consumer Electronics", 4270, new GregorianCalendar(2018, 0, 6), "United States"},
        {2, "Canon EOS 1500D", "Consumer Electronics", 8239, new GregorianCalendar(2018, 0, 7), "United Kingdom"},
        {3, "Haier 394L 4Star", "Consumer Electronics", 617, new GregorianCalendar(2018, 0, 8), "United States"},
        {4, "IFB 6.5 Kg FullyAuto", "Consumer Electronics", 8384, new GregorianCalendar(2018, 0, 10), "Canada"},
        {5, "Mi LED 40inch", "Consumer Electronics", 2626, new GregorianCalendar(2018, 0, 10), "Germany"},
        {6, "Sennheiser HD 4.40-BT", "Consumer Electronics", 3610, new GregorianCalendar(2018, 0, 11), "United States"},
        {7, "Iphone XR", "Mobile", 9062, new GregorianCalendar(2018, 0, 11), "Australia"},
        {8, "OnePlus 7Pro", "Mobile", 6906, new GregorianCalendar(2018, 0, 16), "New Zealand"},
        {9, "Redmi 7", "Mobile", 2417, new GregorianCalendar(2018, 0, 16), "France"},
        {10, "Samsung S9", "Mobile", 7431, new GregorianCalendar(2018, 0, 16), "Canada"},
        {11, "OnePlus 7Pro", "Mobile", 8250, new GregorianCalendar(2018, 0, 16), "Germany"},
        {12, "Redmi 7", "Mobile", 7012, new GregorianCalendar(2018, 0, 18), "United States"},
        {13, "Bose 785593-0050", "Consumer Electronics", 1903, new GregorianCalendar(2018, 0, 20), "Germany"},
        {14, "Canon EOS 1500D", "Consumer Electronics", 2824, new GregorianCalendar(2018, 0, 22), "Canada"},
        {15, "Haier 394L 4Star", "Consumer Electronics", 6946, new GregorianCalendar(2018, 0, 24), "France"},
};

IWorksheet worksheet = workbook.getWorksheets().get(0);
worksheet.getRange("G1:L16").setValue(sourceData);
worksheet.getRange("G:L").setColumnWidth(15);
IPivotCache pivotcache = workbook.getPivotCaches().create(worksheet.getRange("G1:L16"));
IPivotTable pivottable = worksheet.getPivotTables().add(pivotcache, worksheet.getRange("A1"), "pivottable1");
worksheet.getRange("J1:J16").setNumberFormat("$#,##0.00");

//配置透视表的字段
IPivotField field_Category = pivottable.getPivotFields().get("Category");
field_Category.setOrientation(PivotFieldOrientation.ColumnField);

IPivotField field_Product = pivottable.getPivotFields().get("Product");
field_Product.setOrientation(PivotFieldOrientation.RowField);

IPivotField field_Amount = pivottable.getPivotFields().get("Amount");
field_Amount.setOrientation(PivotFieldOrientation.DataField);
field_Amount.setNumberFormat("$#,##0.00");

IPivotField field_Country = pivottable.getPivotFields().get("Country");
field_Country.setOrientation(PivotFieldOrientation.PageField);

worksheet.getRange("A:D").getEntireColumn().autoFit();
    
//保存文件
workbook.save("CreatePivotTable.xlsx");

XSSFWorkbook wb = new XSSFWorkbook();
XSSFSheet sheet = wb.createSheet();
//Create some data to build the pivot table on
setCellData(sheet);
XSSFPivotTable pivotTable = sheet.createPivotTable(new AreaReference("A1:D4"), new CellReference("H5"));
//Configure the pivot table
//Use first column as row label
pivotTable.addRowLabel(0);
//Sum up the second column
pivotTable.addColumnLabel(DataConsolidateFunction.SUM, 1);
//Set the third column as filter
pivotTable.addColumnLabel(DataConsolidateFunction.AVERAGE, 2);
//Add filter on forth column
pivotTable.addReportFilter(3);