jxl操作

import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;

import jxl.Cell;
import jxl.CellType;
import jxl.DateCell;
import jxl.Range;
import jxl.Sheet;
import jxl.Workbook;
import jxl.WorkbookSettings;
import jxl.format.Alignment;
import jxl.format.Border;
import jxl.format.BorderLineStyle;
import jxl.format.CellFormat;
import jxl.format.Colour;
import jxl.format.UnderlineStyle;
import jxl.format.VerticalAlignment;
import jxl.write.Formula;
import jxl.write.Label;
import jxl.write.Number;
import jxl.write.NumberFormat;
import jxl.write.WritableCell;
import jxl.write.WritableCellFeatures;
import jxl.write.WritableCellFormat;
import jxl.write.WritableFont;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.WriteException;
import jxl.write.biff.RowsExceededException;

public class WriteExcelTest {
    static HashMap map = new HashMap();

    public static void main(String[] args) {
        try {
            // copyDateFormat(new File("c:\\a.xls"), 0, "c:\\copy of a.xls");
            writeExcelUseFormat("c:\\format.xls","test");

            // buildNewFormTemplete(new File("c:/templete.xls"),new File(
            // "c:/buildNewFormTemplete.xls"));
            // modifyDirectly1(new File("c:/templete.xls"));
            // modifyDirectly2(new File("c:/templete.xls"));
            //copyDateAndFormat(new File("c:/a.xls"), 0, "c:/a2.xls");
        } catch (Exception e) {
            // TODO 自動生成 catch 塊
            e.printStackTrace();
        }
    }

    public static void modifyDirectly2(File inputFile) throws Exception {
        Workbook w1 = Workbook.getWorkbook(inputFile);
        WritableWorkbook w2 = Workbook.createWorkbook(inputFile, w1);
        WritableSheet sheet = w2.getSheet(0);

        WritableCell cell = null;
        CellFormat cf = null;

        // 加粗
        cell = sheet.getWritableCell(0, 0);
        WritableFont bold = new WritableFont(WritableFont.ARIAL,
                WritableFont.DEFAULT_POINT_SIZE, WritableFont.BOLD);
        cf = new WritableCellFormat(bold);
        cell.setCellFormat(cf);

        // 設置下劃線
        cell = sheet.getWritableCell(0, 1);
        WritableFont underline = new WritableFont(WritableFont.ARIAL,
                WritableFont.DEFAULT_POINT_SIZE, WritableFont.NO_BOLD, false,
                UnderlineStyle.SINGLE);
        cf = new WritableCellFormat(underline);
        cell.setCellFormat(cf);

        // 直截添加可以覆蓋掉
        setCellValueDirectly(sheet, sheet.getCell(0, 2), new Double(4),
                CellType.NUMBER);

        w2.write();
        w2.close();
    }

    public static void modifyDirectly1(File file) {
        try {
            // Excel獲得文件
            Workbook wb = Workbook.getWorkbook(file);
            // 打開一個文件的副本，並且指定數據寫回到原文件
            WritableWorkbook book = Workbook.createWorkbook(file, wb);
            WritableSheet sheet0 = book.getSheet(0);
            sheet0.addCell(new Label(0, 1, "陳小穩"));

            // 添加一個工作表
            WritableSheet sheet = book.createSheet(" 第二頁 ", 1);
            sheet.addCell(new Label(0, 0, " 第二頁的測試數據 "));
            book.write();
            book.close();
        } catch (Exception e) {
            System.out.println(e);
        }
    }

    public static void buildNewFormTemplete(File inputFile, File outputFile) {
        try {
            // Excel獲得文件
            Workbook wb = Workbook.getWorkbook(inputFile);
            // 打開一個文件的副本，並且指定數據寫回到原文件
            WritableWorkbook book = Workbook.createWorkbook(outputFile, wb);
            WritableSheet sheet0 = book.getSheet(0);
            sheet0.addCell(new Label(0, 1, "陳小穩"));

            // 添加一個工作表
            WritableSheet sheet = book.createSheet(" 第二頁 ", 1);
            sheet.addCell(new Label(0, 0, " 第二頁的測試數據 "));

            book.write();
            book.close();
        } catch (Exception e) {
            System.out.println(e);
        }
    }

    public static void copyDateAndFormat(File inputFile,
            int inputFileSheetIndex, String outputFilePath) throws Exception {
        Workbook book = null;
        Cell cell = null;
        // 1.避免亂碼的設置
        WorkbookSettings setting = new WorkbookSettings();
        java.util.Locale locale = new java.util.Locale("zh", "CN");
        setting.setLocale(locale);
        setting.setEncoding("ISO-8859-1");
        book = Workbook.getWorkbook(inputFile, setting);
        Sheet readonlySheet = book.getSheet(inputFileSheetIndex);

        OutputStream os = new FileOutputStream(outputFilePath);// 輸出的Excel文件URL
        WritableWorkbook wwb = Workbook.createWorkbook(os);// 創建可寫工作薄
        WritableSheet writableSheet = wwb.createSheet(readonlySheet.getName(),
                0);// 創建可寫工作表

        // 2.謄寫不同數據格式的數據
        for (int rowIndex = 0; rowIndex < readonlySheet.getRows(); rowIndex++) {
            for (int colIndex = 0; colIndex < readonlySheet.getColumns(); colIndex++) {
                cell = readonlySheet.getCell(colIndex, rowIndex);
                // A2B2爲合併的單元格，A2有內容，B2爲空
                // if(colIndex == 0 && rowIndex == 1){
                // System.out.println(colIndex + "," + rowIndex + " type:" +
                // cell.getType() +" :" + cell.getContents());
                // }

                // 【有各種設置格式】
                if (cell.getType() == CellType.DATE
                        || cell.getType() == CellType.DATE_FORMULA) {
                    writableSheet.addCell(new jxl.write.DateTime(colIndex,
                            rowIndex, ((DateCell) cell).getDate(),
                            new jxl.write.WritableCellFormat(cell
                                    .getCellFormat())));
                } else if (cell.getType() == CellType.NUMBER
                        || cell.getType() == CellType.NUMBER_FORMULA) {
                    writableSheet.addCell(new jxl.write.Number(colIndex,
                            rowIndex, ((jxl.NumberCell) cell).getValue(),
                            new jxl.write.WritableCellFormat(cell
                                    .getCellFormat())));
                } else if (cell.getType() == CellType.EMPTY) {
                    // 空的以及合併單元格中第一列外的
                    // System.out.println("EMPTY:"+cell.getContents());
                    // System.err.println("空單元格 at " + colIndex + "," + rowIndex
                    // +" content:" + cell.getContents());
                } else if (cell.getType() == CellType.LABEL
                        || cell.getType() == CellType.STRING_FORMULA) {
                    writableSheet.addCell(new Label(colIndex, rowIndex, cell
                            .getContents(), new jxl.write.WritableCellFormat(
                            cell.getCellFormat())));
                } else {
                    System.err.println("其它單元格類型：" + cell.getType() + " at "
                            + colIndex + "," + rowIndex + " content:"
                            + cell.getContents());
                }

                // if(cell.getType() == CellType.STRING_FORMULA){
                // System.err.println(colIndex + "," + rowIndex +":" +
                // cell.getContents() +" type:" + cell.getType());
                // }
            }
        }

        // 3.處理合並單元格的事情(複製合併單元格格式)
        Range[] range = readonlySheet.getMergedCells();
        for (int i = 0; i < range.length; i++) {
            // System.out.println("第"+i+"處合併的單元格:"
            // +",getTopLeft="+range[i].getTopLeft().getColumn()
            // +","+range[i].getTopLeft().getRow()
            // +",getBottomRight="+range[i].getBottomRight().getColumn()
            // +","+range[i].getBottomRight().getRow()
            // );
            // topleftXIndex, topleftYIndex, bottomRightXIndex,
            // bottomRightYIndex
            writableSheet.mergeCells(range[i].getTopLeft().getColumn(),
                    range[i].getTopLeft().getRow(), range[i].getBottomRight()
                            .getColumn(), range[i].getBottomRight().getRow());
        }

        // 4.設置行列高寬
        for (int colIndex = 0; colIndex < readonlySheet.getColumns(); colIndex++) {
            writableSheet.setColumnView(colIndex, readonlySheet
                    .getColumnView(colIndex));
        }
        for (int rowIndex = 0; rowIndex < readonlySheet.getRows(); rowIndex++) {
            writableSheet.setRowView(rowIndex, readonlySheet
                    .getRowView(rowIndex));
        }

        wwb.write();
        wwb.close();
        os.close();
    }

    public static void writeExcelUseFormat(String outputFilePath,
            String outputFileSheetName) throws Exception {
        OutputStream os = new FileOutputStream(outputFilePath);// 輸出的Excel文件URL
        WritableWorkbook wwb = Workbook.createWorkbook(os);// 創建可寫工作薄
        WritableSheet sheet = wwb.createSheet(outputFileSheetName, 0);// 創建可寫工作表

        sheet.addCell(new Label(0, 0, "號碼"));
        sheet.addCell(new Label(1, 0, "有效期"));

        // 1.寫入時間的數據格式
        jxl.write.DateFormat df = new jxl.write.DateFormat("yyyy-MM-dd");
        jxl.write.WritableCellFormat wcfDF = new jxl.write.WritableCellFormat(
                df);
        jxl.write.DateTime labelDTF = new jxl.write.DateTime(1, 1, new Date(),
                wcfDF); // 自定義格式
        sheet.addCell(labelDTF);

        // 2.字體樣式
        // WritableFont()方法裏參數說明：
        // 這個方法算是一個容器，可以放進去好多屬性
        // 第一個: TIMES是字體大小，他寫的是18
        // 第二個: BOLD是判斷是否爲斜體,選擇true時爲斜體
        // 第三個: ARIAL
        // 第四個: UnderlineStyle.NO_UNDERLINE 下劃線
        // 第五個: jxl.format.Colour.RED 字體顏色是紅色的
        jxl.write.WritableFont wf = new jxl.write.WritableFont(
                WritableFont.TIMES, 18, WritableFont.BOLD, true);
        jxl.write.WritableCellFormat wcfF = new jxl.write.WritableCellFormat(wf);
        wcfF.setWrap(true);// 自動換行
        wcfF.setAlignment(jxl.format.Alignment.CENTRE);// 把水平對齊方式指定爲居中
        wcfF.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);// 把垂直對齊方式指定爲居中
        jxl.write.Label labelC = new jxl.write.Label(0, 1,
                "This is a Label cell", wcfF);
        sheet.addCell(labelC);

        // 3.添加帶有formatting的Number對象
        jxl.write.NumberFormat nf = new jxl.write.NumberFormat("#.##");
        jxl.write.WritableCellFormat wcfN = new jxl.write.WritableCellFormat(nf);
        jxl.write.Number labelNF = new jxl.write.Number(0, 2, 3.1415926, wcfN);
        sheet.addCell(labelNF);

        // 4.添加Boolean對象
        jxl.write.Boolean labelB = new jxl.write.Boolean(0, 3, false);
        sheet.addCell(labelB);

        // 5.設置一個註解
        WritableCellFeatures cellFeatures = new WritableCellFeatures();
        cellFeatures.setComment("添加Boolean對象");
        labelB.setCellFeatures(cellFeatures);

        // 6.單元格內換行
        WritableCellFormat wrappedText = new WritableCellFormat(
                WritableWorkbook.ARIAL_10_PT);
        wrappedText.setWrap(true);// 可換行的label樣式
        Label label = new Label(4, 0, "測試,\012測試。。。", wrappedText); // "\012"強制換行
        sheet.addCell(label);

        // 7.數字的公式計算
        Number n = new jxl.write.Number(0, 9, 4.5);// A10
        sheet.addCell(n);
        n = new Number(1, 9, 8);// B10
        sheet.addCell(n);
        NumberFormat dp3 = new NumberFormat("#.###"); // 設置單元格里面的數字格式
        WritableCellFormat dp3cell = new WritableCellFormat(dp3);
        dp3cell.setWrap(true);
        Formula f = new Formula(2, 9, "(a10+b10)/2", dp3cell); // 設置C10公式
        sheet.addCell(f);
        f = new Formula(3, 9, "SUM(A10:B10)", dp3cell);// 設置D10公式
        sheet.addCell(f);

        // 8.設置sheet的樣式
        sheet.getSettings().setProtected(true); // 設置xls的保護，單元格爲只讀的
        sheet.getSettings().setPassword("123"); // 設置xls的密碼
        sheet.getSettings().setDefaultColumnWidth(10); // 設置列的默認寬度,2cm左右
        sheet.setRowView(3, 200);// 設置第4行高度
        sheet.setRowView(2, false);// 這樣可以自動把行高擴展
        sheet.setColumnView(0, 300);// 設置第1列寬度，6cm左右
        sheet.mergeCells(0, 5, 1, 7);// 合併單元格：合併A6B8也就是1列6行 與 2列7行之間的矩形

        // 9.設置邊框
        drawRect(sheet, 5, 6, 7, 6, BorderLineStyle.THICK, Colour.BLACK, null);

        sheet.mergeCells(1, 2, 3, 3);

        wwb.write();
        wwb.close();
        os.close();
    }

    public static void drawRect(WritableSheet sheet, int x, int y, int width,
            int height, BorderLineStyle style, Colour BorderColor,
            Colour bgColor) throws WriteException {
        for (int w = 0; w < width; w++) {
            for (int h = 0; h < height; h++) {
                WritableCellFormat alignStyle = new WritableCellFormat(); // 單元格樣式
                alignStyle.setAlignment(Alignment.CENTRE); // 設置對齊方式
                alignStyle.setVerticalAlignment(VerticalAlignment.CENTRE);// 設置對齊方式
                if (h == 0)// 畫上
                    alignStyle.setBorder(Border.TOP, style, BorderColor);// 設置邊框的顏色和樣式

                if (w == 0)// 畫左
                    alignStyle.setBorder(Border.LEFT, style, BorderColor);// 設置邊框的顏色和樣式

                if (w == width - 1)// 畫右
                    alignStyle.setBorder(Border.RIGHT, style, BorderColor);// 設置邊框的顏色和樣式

                if (h == height - 1)// 畫下
                    alignStyle.setBorder(Border.BOTTOM, style, BorderColor);// 設置邊框的顏色和樣式
                // drawLine(sheet, x, y, Border.BOTTOM);
                if (bgColor != null)
                    alignStyle.setBackground(bgColor); // 背靜色
                Label mergelabel = new Label(x, y, "", alignStyle);
                // topleftXIndex, topleftYIndex, bottomRightXIndex,
                // bottomRightYIndex
                // sheet.mergeCells(2, 5, 10, 10);
                sheet.addCell(mergelabel);
                y++;
            }
            y -= height;
            x++;
        }
    }

    public static ArrayList<String> sampleReadExcel(File inputFile,
            int inputFileSheetIndex) throws Exception {
        ArrayList<String> list = new ArrayList<String>();
        Workbook book = null;
        Cell cell = null;
        // 避免亂碼的設置
        WorkbookSettings setting = new WorkbookSettings();
        java.util.Locale locale = new java.util.Locale("zh", "CN");
        setting.setLocale(locale);
        setting.setEncoding("ISO-8859-1");
        book = Workbook.getWorkbook(inputFile, setting);

        Sheet sheet = book.getSheet(inputFileSheetIndex);
        for (int rowIndex = 0; rowIndex < sheet.getRows(); rowIndex++) {// Excel第一行爲表頭,因此J初值設爲1
            for (int colIndex = 0; colIndex < sheet.getColumns(); colIndex++) {// 只需從Excel中取出2列
                cell = sheet.getCell(colIndex, rowIndex);
                list.add(cell.getContents());
            }
        }

        // 【問題：如果在實際部署的時候沒有寫下面這句是否會導致不斷消耗掉服務器的內存？jxl裏面有個ReadWrite.java沒有關閉讀的，只關閉了寫的】
        book.close();

        return list;
    }

    public static void setCellValueDirectly(WritableSheet sheet, Cell cell,
            Object newValue, CellType type) throws Exception {
        if (type == CellType.DATE || type == CellType.DATE_FORMULA) {
            sheet.addCell(new jxl.write.DateTime(cell.getColumn(), cell
                    .getRow(), (Date) newValue,
                    new jxl.write.WritableCellFormat(cell.getCellFormat())));
        } else if (type == CellType.NUMBER || type == CellType.NUMBER_FORMULA) {
            sheet.addCell(new jxl.write.Number(cell.getColumn(), cell.getRow(),
                    ((Double) newValue).doubleValue(),
                    new jxl.write.WritableCellFormat(cell.getCellFormat())));
        } else if (type == CellType.LABEL || type == CellType.STRING_FORMULA) {
            sheet.addCell(new Label(cell.getColumn(), cell.getRow(),
                    (String) newValue, new jxl.write.WritableCellFormat(cell
                            .getCellFormat())));
        } else {
            throw new Exception("不支持的其它單元格類型：" + type);
            // System.err.println("不支持的其它單元格類型：" + cell.getType() + " at " +
            // cell.getColumn() + "," + cell.getRow() +" current content:" +
            // cell.getContents());
        }
    }

}