Question

如何在Java中生成CSV时将数据写入下一个工作表？

                    response.setContentType("text/csv");
        response.setCharacterEncoding("UTF-8");
        response.setHeader("Content-disposition",
                "inline; filename=\"mGovData.csv\"");


        OutputStream outputStream = response.getOutputStream();

        byte[] bom = new byte[] { (byte) 0xEF, (byte) 0xBB, (byte) 0xBF };
        outputStream.write(bom); // adds BOM

        Writer out = new BufferedWriter(new OutputStreamWriter(
                outputStream, "UTF-8"));

        if (otmstatus != null
                || (StringUtils.isNotBlank(otmfrmDate) && StringUtils
                        .isNotBlank(otmtoDate))
                || (otmdaystate != null && from != null && to != null)) {

            // Write the content
            if (otmfrmDate != null && otmtoDate != null) {
                from = new SimpleDateFormat("dd-MM-yyyy").parse(otmfrmDate);
                // to = new SimpleDateFormat("dd-MM-yyyy").parse(otmtoDate);
                DateFormat d = new SimpleDateFormat("dd-MM-yyyy");
                to = d.parse(otmtoDate);
                to.setHours(23);
                to.setMinutes(59);
                to.setSeconds(59);
            }

            otmConfigDtos = otmManager.getOtmDetailsForReport(otmstatus,
                    from, to, sp_Id, otmdaystate, otmphoneNo, msgText);

            String csvTitles = getText("lbl.report.generate.pdf.text.otm")
                    + "," + "\n"
                    + getText("lbl.report.generate.pdf.text.documentdate")
                    + new Date().toString() + "," + "\n"
                    + getText("lbl.report.generate.pdf.text.reportdate")
                    + " "
                    + getText("lbl.report.generate.pdf.text.dateform")
                    + " " + DateFormatUtils.format(from, "dd/MM/yyyy")
                    + " " + getText("lbl.report.generate.pdf.text.dateto")
                    + " " + DateFormatUtils.format(to, "dd/MM/yyyy") + "\n";

            out.write(csvTitles);

out.flush();
        out.close();
        outputStream.close();
}

我想知道写在CSV上的数据是否过于庞大。那么我们如何将它移到下一张纸上呢？

Answer 1

如果首先完成了一定数量的行，则可以创建下一个csv文件。如果某些行已完成，则在第二个csv中，您可以编写下一个csv文件。

但在我的建议中，将数据写入数据库，那么一切都会非常简单。数据插入，检索，编辑等将非常简单

如何在生成CSV时将数据写入下一个工作表？

1 个答案: