我正在使用POI 3.12-beta1:
<!-- Apache POI (for Excel) -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.12-beta1</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>3.12-beta1</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>ooxml-schemas</artifactId>
<version>1.1</version>
</dependency>
我正在尝试创建一个计算的数据透视表列,其定义为:= 'Ended' / 'Generated' * 100
。
我继续在Excel中手动编辑工作表以使其工作,当我将*.xlsx
文件转换为ZIP目录并查看它时,我在\xl\pivotCache\pivotCacheDefinition1.xml
中找到了以下代码:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<pivotCacheDefinition xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" r:id="rId1" refreshOnLoad="1" refreshedBy="vyasrav" refreshedDate="42110.580247453705" createdVersion="3" refreshedVersion="3" minRefreshableVersion="3" recordCount="352">
<cacheSource type="worksheet">
<worksheetSource ref="A1:O353" sheet="Data"/>
</cacheSource>
<cacheFields count="16">
<!-- OMITTED -->
<cacheField name="Avg Pct Processed" numFmtId="0" formula="'Ended' / 'Generated' * 100" databaseField="0"/>
</cacheFields>
</pivotCacheDefinition>
所以我回到我的java程序并添加了以下代码来自动生成它,但它没有注册数据列“15”而我收到了IndexOutOfBounds错误。
// Add pivot (pivot table):
Sheet pivotSheet = workbook.createSheet("Pivot");
LOGGER.trace("Created sheet: '" + String.valueOf(pivotSheet) + "'.");
XSSFPivotTable pivotTable = ((XSSFSheet)pivotSheet).createPivotTable(new AreaReference(tableRange), new CellReference("A1"), dataSheet);
CTPivotTableDefinition ctPivotTableDefinition = pivotTable.getCTPivotTableDefinition();
CTPivotTableStyle ctPivotTableStyle = ctPivotTableDefinition.getPivotTableStyleInfo();
ctPivotTableStyle.setName("PivotStyleMedium4");
// Row Labels:
pivotTable.addRowLabel(...); // ...
...
// Add column 15 (this is a calculated column):
CTCacheFields ctCacheFields = pivotTable.getPivotCacheDefinition().getCTPivotCacheDefinition().getCacheFields();
CTCacheField ctCacheField = ctCacheFields.addNewCacheField();
ctCacheField.setName("Avg Pct Processed");
ctCacheField.setFormula("'Ended' / 'Generated' * 100");
// Column Labels:
pivotTable.addColumnLabel(DataConsolidateFunction.SUM, 8, "Sum of Generated");
pivotTable.addColumnLabel(DataConsolidateFunction.SUM, 12, "Sum of Ended");
pivotTable.addColumnLabel(DataConsolidateFunction.SUM, 13, "Sum of Unended");
pivotTable.addColumnLabel(DataConsolidateFunction.SUM, 15, "Average of Processed Percent");
...
上面粗体线上发生的IndexOutOfBoundsException的StackTrace是:
Exception in thread "main" java.lang.IndexOutOfBoundsException at org.openxmlformats.schemas.spreadsheetml.x2006.main.impl.CTPivotFieldsImpl.setPivotFieldArray(Unknown Source) at org.apache.poi.xssf.usermodel.XSSFPivotTable.addDataColumn(XSSFPivotTable.java:372) at org.apache.poi.xssf.usermodel.XSSFPivotTable.addColumnLabel(XSSFPivotTable.java:296) at com...
有谁知道如何使用POI生成此列?
修改
我尝试过使用两者:
CTPivotTableDefinition ctPivotTableDefinition = pivotTable.getCTPivotTableDefinition();
和
CTCacheField ctCacheField = ctCacheFields.insertNewCacheField(15);
并且在任何一个场景中,当执行此行时,我得到相同的异常:
pivotTable.addColumnLabel(DataConsolidateFunction.SUM, 15, "Average of Processed Percent");
作为一个注释,我确实尝试注释掉添加新列标签的行,当我这样做时,如果我在Excel 2010中打开工作簿,则在启动时会收到以下错误消息:< / p>
Removed Feature: PivotTable report from /xl/pivotTables/pivotTable1.xml part (PivotTable view) Removed Records: Workbook properties from /xl/workbook.xml part (Workbook)
谢谢!
答案 0 :(得分:5)
我以下一个方式解决了你的问题:
//... get or create pivotTable
//Use first column as row label
pivotTable.addRowLabel(0);
// 1. Add Formula to cache
addFormulaToCache(pivotTable);
// 2. Add PivotField for Formula column
addPivotFieldForNewColumn(pivotTable);
// 3. Add all column labels before our function..
pivotTable.addColumnLabel(DataConsolidateFunction.SUM, 1);
//Set the third column as filter
pivotTable.addColumnLabel(DataConsolidateFunction.AVERAGE, 2);
// 4. Add formula column
addFormulaColumn(pivotTable);
以下是方法的实现:
private static void addFormulaToCache(XSSFPivotTable pivotTable) {
CTCacheFields ctCacheFields = pivotTable.getPivotCacheDefinition().getCTPivotCacheDefinition().getCacheFields();
CTCacheField ctCacheField = ctCacheFields.addNewCacheField();
ctCacheField.setName("Field1"); // Any field name
ctCacheField.setFormula("'Ended' / 'Generated' * 100");
ctCacheField.setDatabaseField(false);
ctCacheField.setNumFmtId(0);
ctCacheFields.setCount(ctCacheFields.sizeOfCacheFieldArray()); //!!! update count of fields directly
}
private static void addPivotFieldForNewColumn(XSSFPivotTable pivotTable) {
CTPivotField pivotField = pivotTable.getCTPivotTableDefinition().getPivotFields().addNewPivotField();
pivotField.setDataField(true);
pivotField.setDragToCol(false);
pivotField.setDragToPage(false);
pivotField.setDragToRow(false);
pivotField.setShowAll(false);
pivotField.setDefaultSubtotal(false);
}
private static void addFormulaColumn(XSSFPivotTable pivotTable) {
CTDataFields dataFields;
if(pivotTable.getCTPivotTableDefinition().getDataFields() != null) {
dataFields = pivotTable.getCTPivotTableDefinition().getDataFields();
} else {
// can be null if we have not added any column labels yet
dataFields = pivotTable.getCTPivotTableDefinition().addNewDataFields();
}
CTDataField dataField = dataFields.addNewDataField();
dataField.setName("Avg Pct Processed");
// set index of cached field with formula - it is the last one!!!
dataField.setFld(pivotTable.getPivotCacheDefinition().getCTPivotCacheDefinition().getCacheFields().getCount()-1);
dataField.setBaseItem(0);
dataField.setBaseField(0);
}