Question

我需要一些问题的帮助。我首先要描述我的问题然后，如果需要，您可以阅读下面的代码并查看实现细节。

简短描述： 我生成一个包含2张表的Excel工作簿：

表1：通用数据。

表2：对通用数据进行数据透视表。

因为一些Apache提供的POI证明了错误，我通过访问基础的XML结构创建了Pivot表。 xlsx文件。在此我指出了数据透视表字段和操作（在这种情况下为COUNT）。

我现在正在设计自动JUnit测试以验证这一点，这就是我遇到麻烦的地方。

问题： 生成包含文档的XLSX时，数据透视表仅在之后填充值我在客户端中打开它。

我想问一下，在我在客户端打开之前是否有办法以编程方式触发数据透视表。以下是xlsx doc的基础xml（pivotTable1.xml）的两个部分：

在excel客户端打开之前：

<location firstDataCol="1" firstDataRow="1" firstHeaderRow="1" ref="A3:D7"/> <pivotFields count="8"> <pivotField showAll="false" axis="axisPage"> <items count="8"> <item t="default"/> <item t="default"/> <item t="default"/>

在excel客户端中打开

<pivotFields count="8"> <pivotField axis="axisPage" showAll="0"> <items count="2"> <item x="0"/> <item t="default"/> </items>

如果我尝试在JUnit中使用生成的excel，在打开之前我得到一个NULL： currentWbSheet.getRow(0)。如果我先打开文件然后运行测试，就不会发生这种情况。

您是否知道一种生成数据透视表的方法，以便在生成时计算数据透视表或如何从我的Java应用程序中触发它？

我的目标是将这个生成的xlsx与已知（“黄金”）测试xlsx逐个单元格进行比较，并验证它们的内容是否相同。

代码示例： 创建工作簿表：

private void createSheets(XSSFWorkbook wb) { generalDataSheet = wb.createSheet(GENERAL_DATA_SHEET_NAME); pivotTableSheet = wb.createSheet(PIVOT_TABLE_SHEET_NAME); }

透视表的实现和使用细节：

// Pivot table constants: // where the Table starts with the Report Filter field public static final String PIVOT_TABLE_SOURCE_START = "A1"; // Where the 2nd part of the pivot table starts with the Sum Values field public static final String PIVOT_TABLE_DATA_START = "A3:B3"; private static final String PIVOT_TABLE_NAME = " Pivot Table"; private static final int INTERFACE_NAME_CELL_POS = 0; private static final int PROVIDER_NAME_CELL_POS = 4; private static final int REQUESTER_NAME_CELL_POS = 6; … private void populatePivotTableSheet(List<MyDataSet> list) { //Set position of the pivot table in sheet CellReference pivotTableCellPosition = new CellReference(PIVOT_TABLE_SOURCE_START); //set source area for the pivot table AreaReference pivotTableSourceArea = getDefaultPivotTableSourceArea(list); // create pivot table and set attributespivotTable = new PivotTableMyTools(pivotTableSourceArea, PIVOT_TABLE_NAME); pivotTable.createPivotTable(pivotTableSheet, pivotTableCellPosition); // set the size of the pivot Table - this is because of a bug in regular API pivotTable.setRefField(PIVOT_TABLE_DATA_START); pivotTable.addRowLabelsField(PROVIDER_NAME_CELL_POS); pivotTable.addColumnLabelsField(REQUESTER_NAME_CELL_POS); pivotTable.addReportFilterField(INTERFACE_NAME_CELL_POS); pivotTable.addSumValuesField(DataConsolidateFunction.COUNT,PROVIDER_NAME_CELL_POS); }

我获得了数据透视表的源区域：

private AreaReference getDefaultPivotTableSourceArea(Object linkSetList) { List< MyDataSet > list = (List< MyDataSet >) DataSetList; // construct the target area of the Pivot table // start cell is calculated as for ex: "General data!A2" CellReference c1 = new CellReference(GENERAL_DATA_SHEET_NAME + "!" + PIVOT_TABLE_SOURCE_START); String colName = CellReference.convertNumToColString(COLUMN_HEADERS.length - 1); // end cell is calculated as for ex: "General data!H5" CellReference c2 = new CellReference(GENERAL_DATA_SHEET_NAME + "!" + colName + (list.size() + 1)); return new AreaReference(c1, c2); }

然后我使用自己的Pivot表类来覆盖一些方法：

public class PivotTableMyTools extends XSSFPivotTable implements IPivotTableMyTools { private XSSFSheet pivotTableSheet; // Sheet displaying information in pivot private AreaReference sourceDataArea; private XSSFPivotTable pivotTable; private int numberOfDataFields; private String pivotTableName; public PivotTableMyTools(AreaReference sourceDataArea, String pivotTableName) { this.sourceDataArea = sourceDataArea; numberOfDataFields = 0; this.pivotTableName = pivotTableName; } @Override public void createPivotTable(XSSFSheet destinationSheet, CellReference pivotTableCellPosition) { pivotTableSheet = destinationSheet; pivotTable = pivotTableSheet.createPivotTable(sourceDataArea, pivotTableCellPosition); pivotTable.getCTPivotTableDefinition().setName(pivotTableName); } // int fieldID is the ID of the field in the list of fields to be added to // the report (column headers of the source data area) @Override public void addReportFilterField(int fieldID) { int lastColIndex = getSourceAreaLastColumnIndex(); // create new pivot field with Column Specifications try { // throws index out of bounds checkColumnIndexOutOfBounds(fieldID, lastColIndex); // add pivot field to PivotTable, lastColindex also indicates the // number of columns addNewPivotField(fieldID, lastColIndex, STAxis.AXIS_PAGE); // Columns labels colField should be added. addNewCTPageField(fieldID); } catch (IndexOutOfBoundsException e) { Activator.logInfo("Column index is out of bounds"); Activator.logError(e.getMessage()); } } private void addNewCTPageField(int columnIndex) { CTPageFields pageFields; if (pivotTable.getCTPivotTableDefinition().getPageFields() != null) { pageFields = pivotTable.getCTPivotTableDefinition().getPageFields(); } else { pageFields = pivotTable.getCTPivotTableDefinition().addNewPageFields(); } // Set the fld and hier attributes CTPageField pageField = pageFields.addNewPageField(); pageField.setFld(columnIndex); pageField.setHier(-1); // set the count attribute pageFields.setCount(pageFields.sizeOfPageFieldArray()); } @Override public void addRowLabelsField(int columnIndex) { pivotTable.addRowLabel(columnIndex); } @Override public void addColumnLabelsField(int columnIndex) { int lastColIndex = getSourceAreaLastColumnIndex(); // create new pivot field with Column Specifications try { // throws index out of bounds checkColumnIndexOutOfBounds(columnIndex, lastColIndex); // add pivot field to PivotTable, lastColindex also indicates the // number of columns addNewPivotField(columnIndex, lastColIndex, STAxis.AXIS_COL); // Columns labels colField should be added. addNewCTColField(columnIndex); } catch (IndexOutOfBoundsException e) { Activator.logInfo("Column index is out of bounds"); Activator.logError(e.getMessage()); } } @Override public void addSumValuesField(DataConsolidateFunction function, int fieldID) { // pivotTable.addColumnLabel(DataConsolidateFunction.COUNT, // PROVIDER_NAME_CELL_POS, "Provider count"); try { CTPivotField pivotField = getPivotField(fieldID); pivotField.setDataField(true); } catch (IndexOutOfBoundsException e) { Activator.logInfo("The selected column is out of current range"); Activator.logError(e.getMessage()); } addNewCTDataField(fieldID, "Count of Provider"); } private void addNewCTDataField(int fieldID, String fieldName) { numberOfDataFields++; CTDataFields dataFields = pivotTable.getCTPivotTableDefinition().addNewDataFields(); CTDataField dataField = dataFields.addNewDataField(); dataField.setName(fieldName); dataField.setFld(fieldID); dataField.setSubtotal(STDataConsolidateFunction.COUNT); dataField.setBaseField(0); dataField.setBaseItem(0); dataFields.setCount(numberOfDataFields); } private CTPivotField getPivotField(int fieldID) throws IndexOutOfBoundsException { CTPivotFields pivotFields = pivotTable.getCTPivotTableDefinition().getPivotFields(); if (null == pivotFields) throw new IndexOutOfBoundsException(); return pivotFields.getPivotFieldArray(4); } @Override public AreaReference getPivotTableSourceArea() { return sourceDataArea; } @Override public int getSourceAreaLastColumnIndex() { return (sourceDataArea.getLastCell().getCol() - sourceDataArea.getFirstCell().getCol()); } @Override public void setRefField(String pivotTableFieldArea) { CTLocation location = pivotTable.getCTPivotTableDefinition().getLocation(); location.setRef("A3:D7"); } /***************** private methods ***********************************/ private void addNewCTColField(int columnIndex) { CTColFields colFields; if (pivotTable.getCTPivotTableDefinition().getColFields() != null) { colFields = pivotTable.getCTPivotTableDefinition().getColFields(); } else { colFields = pivotTable.getCTPivotTableDefinition().addNewColFields(); } colFields.addNewField().setX(columnIndex); colFields.setCount(colFields.sizeOfFieldArray()); } private void addNewPivotField(int columnIndex, int numberOfItems, Enum axisValue) { IPivotFieldARTools pivotField = new PivotFieldARTools(); pivotField.setAxis(axisValue); pivotField.createItemsList(numberOfItems); pivotField.addToPivotTable(columnIndex, pivotTable); } private void checkColumnIndexOutOfBounds(int columnIndex, int lastColIndex) throws IndexOutOfBoundsException { if (columnIndex > lastColIndex && columnIndex < 0) { throw new IndexOutOfBoundsException(); } }

Answer 1

要解决方法这个问题，我将创建一个VBScript应用程序，我可以将其与我的插件一起发送，并且可以从插件中触发。

。此应用程序将执行的操作是：打开Excel客户端中作为参数接收的Excel文件，然后保存文件并关闭客户端。

。这应该触发Excel执行的数据透视表生成步骤，并允许我使用数据透视表自动生成完整的Excel。

<强>缺点：

。我必须到达外部Java库才能执行此操作。

。我必须执行额外的步骤：打开/保存和关闭excel客户端。我的wscript解决方法的代码如下所示：

excelOpenSave.vbs：

on error resume next

Dim文件名
filename = WScript.Arguments（0）

＆＃39; WScript.Echo文件名

Set objExcel = CreateObject("Excel.Application")
objExcel.DisplayAlerts = False
Set objWorkbook = objExcel.Workbooks.Open(filename)
objExcel.Visible = true
objWorkbook.RefreshAll


objExcel.ActiveWorkbook.Save 
objExcel.ActiveWorkbook.Close SaveChanges=True
objExcel.Application.Quit
'WScript.Echo "Finished."


'always deallocate after use...
Set objWorkbook = Nothing
Set objExcel = Nothing
WScript.Quit

我的Java代码是：

public static void triggerOpenSaveCloseScript(String file) {

    String projPath = System.getProperty("user.dir");
    String script = projPath + "\\Script\\excelOpenSave.vbs";
    String command = "CScript " + script + "  " + file;
    int exitValue = 0;
    try {
        Runtime rt = Runtime.getRuntime();
        Process pr = rt.exec(command);
        exitValue = pr.waitFor(); //wait until script finishes
    } catch (IOException e) {
        e.printStackTrace();
    } catch (InterruptedException e) {
        System.out.println("CScript exited with error: " + exitValue);
        e.printStackTrace();
    }
}

无法触发.xlsx代

1 个答案: