配置数据透视表字段

Object sourceData = new Object[][] { { "Order ID", "Product", "Category", "Amount", "Date", "Country" },
        { 1, "Carrots", "Vegetables", 4270, new GregorianCalendar(2018, 0, 6), "United States" },
        { 2, "Broccoli", "Vegetables", 8239, new GregorianCalendar(2018, 0, 7), "United Kingdom" },
        { 3, "Banana", "Fruit", 617, new GregorianCalendar(2018, 0, 8), "United States" },
        { 4, "Banana", "Fruit", 8384, new GregorianCalendar(2018, 0, 10), "Canada" },
        { 5, "Beans", "Vegetables", 2626, new GregorianCalendar(2018, 0, 10), "Germany" },
        { 6, "Orange", "Fruit", 3610, new GregorianCalendar(2018, 0, 11), "United States" },
        { 7, "Broccoli", "Vegetables", 9062, new GregorianCalendar(2018, 0, 11), "Australia" },
        { 8, "Banana", "Fruit", 6906, new GregorianCalendar(2018, 0, 16), "New Zealand" },
        { 9, "Apple", "Fruit", 2417, new GregorianCalendar(2018, 0, 16), "France" },
        { 10, "Apple", "Fruit", 7431, new GregorianCalendar(2018, 0, 16), "Canada" },
        { 11, "Banana", "Fruit", 8250, new GregorianCalendar(2018, 0, 16), "Germany" },
        { 12, "Broccoli", "Vegetables", 7012, new GregorianCalendar(2018, 0, 18), "United States" },
        { 13, "Carrots", "Vegetables", 1903, new GregorianCalendar(2018, 0, 20), "Germany" },
        { 14, "Broccoli", "Vegetables", 2824, new GregorianCalendar(2018, 0, 22), "Canada" },
        { 15, "Apple", "Fruit", 6946, new GregorianCalendar(2018, 0, 24), "France" }, };

IWorksheet worksheet = workbook.getWorksheets().get(0);
worksheet.getRange("A1:F16").setValue(sourceData);
worksheet.getRange("A:F").setColumnWidth(15);
IPivotCache pivotcache = workbook.getPivotCaches().create(worksheet.getRange("A1:F16"));
IPivotTable pivottable = worksheet.getPivotTables().add(pivotcache, worksheet.getRange("H7"), "pivottable1");
worksheet.getRange("D2:D16").setNumberFormat("$#,##0.00");
worksheet.getRange("I9:O11").setNumberFormat("$#,##0.00");
worksheet.getRange("H:O").setColumnWidth(12);
        
// config pivot table's fields
IPivotField field_Category = pivottable.getPivotFields().get("Category");
field_Category.setOrientation(PivotFieldOrientation.RowField);

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

IPivotField field_Amount = pivottable.getPivotFields().get("Amount");
field_Amount.setOrientation(PivotFieldOrientation.DataField);

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