在 jExcel API 中创建多个工作表

Question

如果一张表已满(65536 rows)，我需要使用jExcel API 在 Java 中创建多个 Excel 表。假设如果一张纸已满，那么在下一张纸中，它应该从第一张纸上停止的地方自动开始书写。我只是坚持在一张纸满时动态创建它的逻辑。以下是我到目前为止所做的代码。

public void write() throws IOException, WriteException {
    File file = new File(inputFile);
    WorkbookSettings wbSettings = new WorkbookSettings();

    wbSettings.setLocale(new Locale("en", "EN"));

    WritableWorkbook workbook = Workbook.createWorkbook(file, wbSettings);

    writingToExcel(workbook);
}


//Logic to create sheet dyanmically if one is full should be done here I guess?
private void writingToExcel(WritableWorkbook workbook) {

    workbook.createSheet("Report", 0);
    WritableSheet excelSheet = workbook.getSheet(0);
    try {
        createLabel(excelSheet);
        createContent(excelSheet);
    } catch (WriteException e) {
        e.printStackTrace();
    } finally {
        try {
            workbook.write();
            workbook.close();   
        } catch (IOException e) {
            e.printStackTrace();
        } catch (WriteException e) {
            e.printStackTrace();
        }

    }
}

private void createLabel(WritableSheet sheet) throws WriteException {

    WritableFont times10pt = new WritableFont(WritableFont.TIMES, 10);
    times = new WritableCellFormat(times10pt);
    times.setWrap(true);

    WritableFont times10ptBoldUnderline = new WritableFont(WritableFont.TIMES, 10, WritableFont.BOLD, false,UnderlineStyle.SINGLE);
    timesBoldUnderline = new WritableCellFormat(times10ptBoldUnderline);
    timesBoldUnderline.setWrap(true);

    CellView cv = new CellView();
    cv.setFormat(times);
    cv.setFormat(timesBoldUnderline);
    cv.setAutosize(true);

    // Write a few headers
    addCaption(sheet, 0, 0, "Header 1");
    addCaption(sheet, 1, 0, "This is another header");

}

private void createContent(WritableSheet sheet) throws WriteException,
        RowsExceededException {

    for (int i = 1; i < 70000; i++) {
        addNumber(sheet, 0, i, i + 10);
        addNumber(sheet, 1, i, i * i);
    }
}

private void addCaption(WritableSheet sheet, int column, int row, String s)
        throws RowsExceededException, WriteException {
    Label label;
    label = new Label(column, row, s, timesBoldUnderline);
    sheet.addCell(label);
}

private void addNumber(WritableSheet sheet, int column, int row,
        Integer integer) throws WriteException, RowsExceededException {
    Number number;
    number = new Number(column, row, integer, times);
    sheet.addCell(number);
}

我不确定如何在我的代码中添加该逻辑。

有什么建议会有很大帮助吗？

或者无论如何，谁能给我一个简单的例子，如果一张纸已满，它应该开始自动写入另一张纸（第二张纸）？

Answer 1

我对以下两种方法进行了更改：-

private void writingToExcel(WritableWorkbook workbook) {
    try {
        // don't create a sheet now, instead, pass it in the workbook
        createContent(workbook);
    }
    catch (WriteException e) {
        e.printStackTrace();
    }
    finally {
        try {
            workbook.write();
            workbook.close();
        }
        catch (IOException e) {
            e.printStackTrace();
        }
        catch (WriteException e) {
            e.printStackTrace();
        }

    }
}

// instead of taking a sheet, take a workbook because we cannot ensure if the sheet can fit all the content at this point
private void createContent(WritableWorkbook workbook) throws WriteException {

    int excelSheetIndex = 0;
    int rowIndex = 0;
    WritableSheet excelSheet = null;

    for (int i = 1; i < 70000; i++) {

        // if the sheet has hit the cap, then create a new sheet, new label row and reset the row count
        if (excelSheet == null || excelSheet.getRows() == 65536) {
            excelSheet = workbook.createSheet("Report " + excelSheetIndex, excelSheetIndex++);
            createLabel(excelSheet);
            rowIndex = 0;
        }

        // instead of using i for row, use rowIndex
        addNumber(excelSheet, 0, rowIndex, i + 10);
        addNumber(excelSheet, 1, rowIndex, i * i);

        // increment the sheet row
        rowIndex++;
    }
}

Answer 2

公共类 DscMigration {

private WritableCellFormat timesBoldUnderline;
private WritableCellFormat times;
private String inputFile;

public void setOutputFile(String inputFile) {
    this.inputFile = inputFile;
}

public void write() throws IOException, WriteException {
    File file = new File(inputFile);
    WorkbookSettings wbSettings = new WorkbookSettings();

    wbSettings.setLocale(new Locale("en", "EN"));

    WritableWorkbook workbook = Workbook.createWorkbook(file, wbSettings);
    workbook.createSheet("Report", 0);
    WritableSheet excelSheet = workbook.getSheet(0);
    createLabel(excelSheet);
    createContent(excelSheet);

    workbook.write();
    workbook.close();
}

private void createLabel(WritableSheet sheet) throws WriteException {
    // Lets create a times font
    WritableFont times10pt = new WritableFont(WritableFont.TIMES, 10);
    // Define the cell format
    times = new WritableCellFormat(times10pt);
    // Lets automatically wrap the cells
    times.setWrap(true);

    // Create create a bold font with unterlines
    WritableFont times10ptBoldUnderline = new WritableFont(
            WritableFont.TIMES, 10, WritableFont.BOLD, false,
            UnderlineStyle.SINGLE);
    timesBoldUnderline = new WritableCellFormat(times10ptBoldUnderline);
    // Lets automatically wrap the cells
    timesBoldUnderline.setWrap(true);

    CellView cv = new CellView();
    cv.setFormat(times);
    // cv.setFormat(timesBoldUnderline);
    // cv.setFormat(cf)
    cv.setAutosize(true);

    // Write a few headers
    addCaption(sheet, 0, 0, "COM_ID");
    addCaption(sheet, 1, 0, "OBJECTID");
    addCaption(sheet, 2, 0, "GNOSISID");

}

private void createContent(WritableSheet sheet) throws WriteException,
        RowsExceededException {

    /**
     * Create a new instance for cellDataList
     */
    List<DataObj> cellDataListA = new ArrayList<DataObj>();
    List<DataObj> nonDuplicateA = new ArrayList<DataObj>();
    List<DataObj2> cellDataListB = new ArrayList<DataObj2>();
    List<DataObj2> nonDuplicateB = new ArrayList<DataObj2>();
    List<DataObj> nonDuplicateAB = new ArrayList<DataObj>();
    List<DataObj> misMatchAB = new ArrayList<DataObj>();
    List<DataObj> copyA = new ArrayList<DataObj>();
    List<DataObj2> comID = new ArrayList<DataObj2>();

    try {
        /**
         * Create a new instance for FileInputStream class
         */
        // input1--> col1 -livelink id ; col2->livlink filename; col3-> gnosis id; col4-> filename
        FileInputStream fileInputStream = new FileInputStream(
                "C:/Documents and Settings/nithya/Desktop/DSC/Report/input1.xls");
    //input2 --> col1 comid all, col2 -> object id for common
        FileInputStream fileInputStream2 = new FileInputStream(
        "C:/Documents and Settings/nithya/Desktop/DSC/Report/input2.xls");

        /**
         * Create a new instance for POIFSFileSystem class
         */
        POIFSFileSystem fsFileSystem = new POIFSFileSystem(fileInputStream);
        POIFSFileSystem fsFileSystem2 = new POIFSFileSystem(fileInputStream2);
        /*
         * Create a new instance for HSSFWorkBook Class
         */
        HSSFWorkbook workBook = new HSSFWorkbook(fsFileSystem);
        HSSFSheet hssfSheet = workBook.getSheetAt(0);
        HSSFWorkbook workBook2 = new HSSFWorkbook(fsFileSystem2);
        HSSFSheet hssfSheet2 = workBook2.getSheetAt(0);
        /**
         * Iterate the rows and cells of the spreadsheet to get all the
         * datas.
         */
        Iterator rowIterator = hssfSheet.rowIterator();
        Iterator rowIterator2 = hssfSheet2.rowIterator();
        while (rowIterator.hasNext()) {
            HSSFRow hssfRow = (HSSFRow) rowIterator.next();

            if ((hssfRow.getCell((short) 0) != null)
                    && (hssfRow.getCell((short) 1) != null)) {
                cellDataListA.add(new DataObj(hssfRow.getCell((short) 0)
                        .toString().trim(), hssfRow.getCell((short) 1)
                        .toString().trim()));
            }

            if ((hssfRow.getCell((short) 2) != null)
                    && (hssfRow.getCell((short) 3) != null)) {
                cellDataListB.add(new DataObj2(hssfRow.getCell((short) 2)
                        .toString().trim(), hssfRow.getCell((short) 3)
                        .toString().trim()));
            }

        }
        // Replace Duplicate in Livelink Startd
        Set set = new HashSet();
        List newList = new ArrayList();
        nonDuplicateA.addAll(cellDataListA);
        for (int i = 0; i < nonDuplicateA.size(); i++) {
            DataObj b = nonDuplicateA.get(i);
            if (set.add(b.getCol1()))
                newList.add(nonDuplicateA.get(i));
        }

        nonDuplicateA.clear();
        nonDuplicateA.addAll(newList);
        for (int i = 0; i < nonDuplicateA.size(); i++) {
            DataObj a = nonDuplicateA.get(i);
        }
        System.out.println("nonDuplicateA=="+nonDuplicateA.size());
        // Replace Duplicate in Livelink End

        // Replace Duplicate in Gnosis Startd
        Set set2 = new HashSet();
        List newList2 = new ArrayList();
        System.out.println("cellDataListB=="+cellDataListB.size());
        nonDuplicateB.addAll(cellDataListB);
        for (int i = 0; i < nonDuplicateB.size(); i++) {
            DataObj2 b = nonDuplicateB.get(i);
                if (set2.add(b.getCol1()))
                newList2.add(nonDuplicateB.get(i));
        }

        nonDuplicateB.clear();
        nonDuplicateB.addAll(newList2);

        System.out.println("nonDuplicateB=="+nonDuplicateB.size());
        // Replace Duplicate in Gnosis End

        // Common record
        //System.out.println("------Common----");
        for (int i = 0; i < nonDuplicateA.size(); i++) {
            DataObj a = nonDuplicateA.get(i);
            for (int j = 0; j < nonDuplicateB.size(); j++) {
                DataObj2 b = nonDuplicateB.get(j);

                    if((a.getCol2()!=null && b.getCol2()!=null )){
                        //System.out.println("---------");
                if (a.getCol2().equalsIgnoreCase(b.getCol2())) {

                //  System.out.println(a.getCol2() +"--"+i+"--"+b.getCol2());
                    nonDuplicateAB.add(new DataObj(a.getCol1().toString()
                            .trim(), b.getCol1().toString().trim()));
                    //addLabel(sheet, 0, i, a.getCol1().toString().trim());
                    // addLabel(sheet, 1, i, b.getCol1().toString().trim());
                    break;
                }


            }

            }

        }
        System.out.println("nonDuplicateAB=="+nonDuplicateAB.size());
        TreeMap misA = new TreeMap();
        //System.out.println("------Missing----");
        for (int i = 0; i < nonDuplicateA.size(); i++) {
            DataObj a = nonDuplicateA.get(i);
            for (int j = 0; j < nonDuplicateB.size(); j++) {
                DataObj2 b = nonDuplicateB.get(j);
                    if((a.getCol2()!=null && b.getCol2()!=null )){
                    if (!(a.getCol2().equals(b.getCol2()))) {
                    //System.out.println(a.getCol1() +"="+b.getCol1());

                    //break;

                    if(misA.containsValue(a.getCol2())){
                        misA.remove(a.getCol1());
                    }
                    else
                    {
                        misA.put(a.getCol1(), a.getCol2());
                    }
                }

            }

            }
        }
        //System.out.println("SIze mis="+misA);
        TreeMap misB = new TreeMap();

        for (int i = 0; i < nonDuplicateB.size(); i++) {
            DataObj2 a = nonDuplicateB.get(i);
            for (int j = 0; j < nonDuplicateA.size(); j++) {
                DataObj b = nonDuplicateA.get(j);
                    if((a.getCol2()!=null && b.getCol2()!=null )){
                    if (!(a.getCol2().equals(b.getCol2()))) {
                    //System.out.println(a.getCol1() +"="+b.getCol1());


                    if(misB.containsValue(a.getCol2())){
                        misB.remove(a.getCol1());
                    }
                    else
                    {
                        misB.put(a.getCol1(), a.getCol2());
                    }
                }

            }

            }
        }
    //  System.out.println("SIze misB="+misB);
        //Getting ComID and Object Id from excel start
        while (rowIterator2.hasNext()) {

            HSSFRow hssfRow2 = (HSSFRow) rowIterator2.next();

            if ((hssfRow2.getCell((short) 0) != null)
                    && (hssfRow2.getCell((short) 1) != null)) {
                comID.add(new DataObj2(hssfRow2.getCell((short) 0)
                        .toString().trim(), hssfRow2.getCell((short) 1)
                        .toString().trim()));
            }
        }
        System.out.println("Size ComID="+comID.size());
        TreeMap hm = new TreeMap(); 
        System.out.println("Please wait...Data comparison.. ");
        for (int i = 0; i < nonDuplicateAB.size(); i++) {
            DataObj a = nonDuplicateAB.get(i);
            for(int j=0;j<comID.size();j++ ){
                DataObj2 b = comID.get(j);
                //System.out.println((b.getCol2()+"---"+a.getCol1()));

                if(b.getCol2().equalsIgnoreCase(a.getCol1())){
                    hm.put(b.getCol1(), b.getCol2());
                    break;
                }
            }
        }
        System.out.println("Size HM="+hm.size());
        //Getting ComID and Object Id from excel End

        //Data Base Updation
        Connection conn = null;
        try {

            DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
                       conn =   DriverManager.getConnection(
                      "jdbc:oracle:thin:@cxxxxx:5487:dev", "",
                      "");

        System.out.println("after calling conn");

                Set set6 = hm.entrySet(); 
                Iterator i = set6.iterator(); 
                String gnosisNodeId="";
                int update=1;
                while(i.hasNext()) { 
                Map.Entry me = (Map.Entry)i.next(); 
                //System.out.print(me.getKey() + ": "); 
                //System.out.println(me.getValue()); 
        //  System.out.println("nonDuplicateAB="+nonDuplicateAB.size());
                for(int m=0;m<nonDuplicateAB.size();m++){
                    DataObj a = nonDuplicateAB.get(m);
                    if(me.getValue().toString().equalsIgnoreCase(a.getCol1())){
                    gnosisNodeId=a.getCol2().toString();
                    nonDuplicateAB.remove(m);
                    break;
                    }
                }
                //System.out.println("nonDuplicateAB="+nonDuplicateAB.size());
                if(gnosisNodeId!=null){
                    //System.out.println("LOOP");
                String s1="UPDATE component SET com_xml =  UPDATEXML(com_xml, '*/url/value/text()', '";
                String s2="http://dmfwebtop65.pfizer.com/webtop/drl/objectId/"+gnosisNodeId;
                String s3="') where com_id="+me.getKey().toString().substring(1)+"";
                Statement   stmt1=null;
                //http://dmfwebtop65.pfizer.com/webtop/drl/objectId/0901201b8239cefb
                    try {
                        String updateString1 = s1+s2+s3; 
                        stmt1 = conn.createStatement();

                        int rows =stmt1.executeUpdate(updateString1);
                 if (rows>0) {
                     addLabel(sheet, 0, update, me.getKey().toString().substring(1));
                        addLabel(sheet, 1, update, me.getValue().toString().substring(1));
                        addLabel(sheet, 2, update,gnosisNodeId );
                        update++;   
                    System.out.println("Update Success="+me.getKey().toString().substring(1)+ "-->" +me.getValue().toString().substring(1));
                 }
                 else
                 {
                 System.out.println("Not Updated="+me.getKey().toString().substring(1)+ "-->" +me.getValue().toString().substring(1));
                 }

                    } catch (SQLException e) {
                        System.out.println("No Connect" + e);
                            } catch (Exception e) {
                            System.out.println("Error "+e.getMessage());
                        } 
                }
                else{System.out.println("No gnosis id found for ObjectID="+me.getKey().toString().substring(1)); }

            }//While 
        } //try
     catch (Exception e) {
        e.printStackTrace();
    }



}//Main try
     catch (Exception e) {
            e.printStackTrace();
        }
} //method

private void addCaption(WritableSheet sheet, int column, int row, String s)
        throws RowsExceededException, WriteException {
    Label label;
    label = new Label(column, row, s, timesBoldUnderline);
    sheet.addCell(label);
}

private void addNumber(WritableSheet sheet, int column, int row,
        Integer integer) throws WriteException, RowsExceededException {
    Number number;
    number = new Number(column, row, integer, times);
    sheet.addCell(number);
}

private void addLabel(WritableSheet sheet, int column, int row, String s)
        throws WriteException, RowsExceededException {
    Label label;
    label = new Label(column, row, s, times);
    sheet.addCell(label);
}

public static void main(String[] args) throws WriteException, IOException {
    DscMigration test = new DscMigration();
    test.setOutputFile("C:/Documents and Settings/nithya/Desktop/DSC/Report/Mapping.xls");
    test.write();
    System.out
            .println("Please check the result file under C:/Documents and Settings/nithya/Desktop/DSC/Report/Report.xls ");
}

} XXXX内部使用 基于 WTTE-0043 ELC 维护版本和错误修复计划模板 4.0 版生效日期：2010 年 7 月 1 日 //错误修复计划

作者： 1 批准签名 目录 我编写了这个可交付成果来记录执行维护版本或项目错误修复的计划。 名称日期 我编写了这个可交付成果来记录执行 XXX Plus v4.5 的维护版本或错误修复的计划。 姓名日期

我批准此更改并同意此记录代表执行维护版本或错误修复的准确和完整的计划，并完全支持此项目的实施、测试和发布活动。 名称日期 我查看了此记录的内容，发现它符合适用的 BT 合规要求。 姓名日期

签名 2 简介 该项目可交付成果记录了维护版本或项目错误修复的请求变更、计划方法、开发解决方案、测试计划、测试结果和版本批准。

3 变更请求 请求者姓名：

XX 目的/ 系统名称：

项目 优先级（高/中/低）：

高 变更申请编号： 不适用 变更申请日期：

2011 年 11 月 22 日

问题或请求更改的描述：

预计需要的开发时间：

1 天（大约）

4)4 维护版本和错误修复方法 5 开发方案 8 支持参考 9 修订历史