在 Itext 报告中使用 PdfPTable 时不显示数据

Question

我正在使用嵌套的 PdfPTables 构建 itext 报告。我已经能够验证数据是否从数据库获取到我的数据 objects，但我无法让该数据显示在报告的 body 中。 Header，我直接从以前的（运行中的）报告中复制的，它能够添加行，但是我在 body 中遇到的麻烦只是一行（不是一行数据，就像在报告本身上绘制的一样）。

我希望我只是忘记了中间的一些简单的东西。我将展示我的一些方法：

public void makePDF(String jsonData, Document document, PdfWriter writer)
    {
        this.beginNewLandscapePage(document, writer);

        try
        {
            jsonData = DBConnect.PrintReport(CommonConstants.reportAPI,this.getParams());

            JSONObject  json                = (JSONObject) getParser().parse(jsonData);
            //System.out.println("json = "+json);
            JSONObject  reportHeaderObject  = (JSONObject) (json.get(CommonConstants.reportHeaderObjectField));
            JSONObject  reportPayloadObject = (JSONObject) (json.get(CommonConstants.reportPayloadObjectField));
            JSONArray   reportData          = (JSONArray) (reportPayloadObject.get(CommonConstants.reportDataArrayField));
            JSONObject  reportTotals        = (JSONObject) (reportPayloadObject.get(CommonConstants.reportTotalsObjectField));

            PdfPTable   mainTable = new PdfPTable(1);
            mainTable.setWidthPercentage(100);
            mainTable.getDefaultCell().setBorder(PdfPCell.NO_BORDER);

            this.buildHeader(reportHeaderObject,writer);

            boolean showSubTotalLabel;
            try
            {
                showSubTotalLabel = this.getIsSubTotaled();
            }//try
            catch (NullPointerException ne)
            {
                showSubTotalLabel = false;
            }//catch (NullPointerException)
            String  sortStub = null;
            if(showSubTotalLabel)
            {
                sortStub = Utils.getJSONAsString(reportPayloadObject, CommonConstants.sortStubField);
            }//if(showSubTotalLabel)

            for (int i = 0; i < reportData.size(); i++)
            {
                JSONObject row = (JSONObject) reportData.get(i);
        mainTable.addCell(this.buildRow(row,showSubTotalLabel,sortStub,false));
            }//for (int i = 0; i < dedInfo.size(); i++)

mainTable.addCell(this.buildRow(reportTotals,showSubTotalLabel,sortStub,true));

            document.add(mainTable);
        }//try
        catch (ParseException e)
        {
            e.printStackTrace();
        }//catch (ParseException)
        catch (DocumentException e)
        {
            e.printStackTrace();
        }//catch (DocumentException)

    }//makePDF(String, Document, PdfWriter)


public PdfPCell buildRow(JSONObject row,boolean showSubTotalLabel,String sortStub,boolean isGrandTotal)
    {
        PdfPTable           innerRowTable   = new PdfPTable(this.getInnerRowTableWidths());
        PdfPTable           outerRowTable   = new PdfPTable(this.getOuterRowTableWidths());
        PdfPTable           resultTable     = new PdfPTable(1);
        PdfPTable           dedColumn;
        PdfPTable           leftColumn;
        PdfPTable           payColumn;
        PdfPTable           rightColumn;
        PdfPTable           taxColumn;
        PdfPCell            result;
        PayrollRegisterData rowData2;
        int                 numRows = 5;    //Number of rows in the right column, minus the two matched by the totals row and header row

        if(showSubTotalLabel)
        {
            resultTable.addCell(this.addSubTotalHeader(row,sortStub));
        }//if(showSubTotalLabel)

        boolean isTotal = true;
        try
        {
            JSONObject totalObject = (JSONObject)row.get(CommonConstants.totalsObjectField); //test only to force the NullPointerException
        }//try
        catch(NullPointerException npe)
        {
            isTotal = false;
        }//catch(NullPointerException)

        if (isTotal)
        {
            PayrollRegisterVoucherData  rowData = new PayrollRegisterVoucherData(row);

            showSubTotalLabel   = false;
            rowData2            = rowData;
            leftColumn          = this.buildLeftColumnVoucher(rowData);
            rightColumn         = this.buildRightColumnVoucher(rowData);

        }//if (isTotal)
        else
        {
            PayrollRegisterTotalData    rowData = new PayrollRegisterTotalData(row);

            numRows             = 4;    //Number of Rows in the left column of the totals minus the two for the totals and header
            showSubTotalLabel   = true;
            rowData2            = rowData;
            leftColumn          = this.buildLeftColumnTotal(rowData);
            rightColumn         = this.buildRightColumnTotal(rowData);
            if(isGrandTotal)
            {
                resultTable.addCell(this.addTotalHeader(CommonConstants.reportTotalLabel));
            }//if(isGrandTotal)
            else
            {
                resultTable.addCell(this.addTotalHeader(row,sortStub));
            }//else

        }//else

        if (rowData2.getDeductionData().length > numRows)
        {
            numRows = rowData2.getDeductionData().length;
        }//if (rowData.getDeductionData().length > numRows)

        if (rowData2.getPayData().length > numRows)
        {
            numRows = rowData2.getPayData().length;
        }//if (rowData.getPayData().length > numRows)

        if (rowData2.getTaxData().length > numRows)
        {
            numRows = rowData2.getTaxData().length;
        }//if (rowData.getTaxData().length > numRows)

        dedColumn = this.buildDedColumn(rowData2,numRows);
        payColumn = this.buildPayColumn(rowData2,numRows);
        taxColumn = this.buildTaxColumn(rowData2,numRows);

        innerRowTable.addCell(Utils.getBlankCell());
        innerRowTable.addCell(payColumn);
        innerRowTable.addCell(Utils.getBlankCell());
        innerRowTable.addCell(taxColumn);
        innerRowTable.addCell(Utils.getBlankCell());
        innerRowTable.addCell(dedColumn);
        innerRowTable.addCell(Utils.getBlankCell());

        outerRowTable.addCell(leftColumn);
        outerRowTable.addCell(innerRowTable);
        outerRowTable.addCell(rightColumn);

        resultTable.addCell(outerRowTable);
        result = new PdfPCell(resultTable);
        return result;
    }//buildRow(JSONObject,boolean,String,boolean)

我知道我对此有点生疏，但数据正在成功地进入数据 objects，而且运行没有错误。它只是不在报告的数据部分显示任何数据。是我的 mainTable、buildRow 有问题，还是它们看起来正确，我需要更深入地查看我的代码？

Answer 1

事实证明，问题并没有在原始代码片段中发布，至少没有完全发布。问题是我在构造函数中设置的 float[] 变量对于内部和外部 tables 是相反的。因此，我认为每行只需要三列的外部 table 需要 7 列。所以，当我将它添加到 resultTable 时，它根本没有添加任何东西。

在 Itext 报告中使用 PdfPTable 时不显示数据

Data not showing when using PdfPTable in Itext Report

java

pdf

itext

pdfptable