poi讀取文件,並獲取相應屬性 (java操作Excel文件)

poi讀取文件,並獲取相應屬性

關鍵字:   poi    

格式比較亂,請到poi.apache.org下載最新的包,詳細請參考POI幫助文檔,特別是設置打印模式的頁頁邊距,請先用模板設置好,然後現得到,用得到的頁邊距生成新的文件,另外讀取的模板的列的寬度,實際生成後顯示的效果不一致,有待改進.....另外還有一個是商業的導出到excelwww.jxcell.net/
java 代碼

package www.proudsoul.poi;

import java.io.FileInputStream;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFComment;
import org.apache.poi.hssf.usermodel.HSSFFooter;
import org.apache.poi.hssf.usermodel.HSSFPrintSetup;
import org.apache.poi.hssf.usermodel.HSSFRichTextString;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;

public class ReaderDemo {

    /**
     * @param args
     */
    public static void main(String[] args) {
        try {
            // create a poi workbook from the excel spreadsheet file
            POIFSFileSystem fs = new POIFSFileSystem(new FileInputStream(
                    "demo.xls"));
            // POIFSFileSystem fs = new POIFSFileSystem(new FileInputStream(
            // "E:/JavaExcel/poi-3.0-rc4/src/testcases/org/apache/poi/hssf/data/12843-1.xls"));
            HSSFWorkbook wb = new HSSFWorkbook(fs);
            for (int k = 0; k < wb.getNumberOfSheets(); k++) {
                HSSFSheet sheet = wb.getSheetAt(k);
                System.out.println("列寬: "+sheet.getColumnWidth((short)0));
                HSSFFooter footer = sheet.getFooter();
                int rows = sheet.getPhysicalNumberOfRows();
                if (rows > 0) {
                    System.out.println("總共: " + rows);
                    System.out.println("當前時間: " + HSSFFooter.date()
                            + " 當前文件名稱: " + HSSFFooter.file() + " 頁數: "
                            + HSSFFooter.numPages() + " 當前工作表名稱: "
                            + HSSFFooter.tab());
                    sheet.getMargin(HSSFSheet.TopMargin);
                    HSSFPrintSetup hps = sheet.getPrintSetup();
                    /*System.out.println("得到打印模式: " + hps.getLandscape()
                            + " 頁面大小: " + hps.getPaperSize() + " 頭部空白: "
                            + sheet.getMargin(HSSFSheet.TopMargin) + " 左部空白: "
                            + sheet.getMargin(HSSFSheet.LeftMargin) + " 右部空白: "
                            + sheet.getMargin(HSSFSheet.RightMargin)
                            + " 底部空白: "
                            + sheet.getMargin(HSSFSheet.BottomMargin)
                                                                         * + "
                                                                         * PANE_LOWER_LEFT: "
                                                                         * +sheet.getMargin(HSSFSheet.PANE_LOWER_LEFT)+ "
                                                                         * PANE_LOWER_RIGHT:
                                                                         * "+sheet.getMargin(HSSFSheet.PANE_LOWER_RIGHT)+ "
                                                                         * PANE_UPPER_LEFT: "
                                                                         * +sheet.getMargin(HSSFSheet.PANE_UPPER_LEFT)+ "
                                                                         * PANE_UPPER_RIGHT: "
                                                                         * +sheet.getMargin(HSSFSheet.PANE_UPPER_RIGHT)+ "
                                                                         * 居中方式:
                                                                         * "+sheet.getHorizontallyCenter()

                    );*/

                    for (int r = 0; r < rows; r++) {
                        /* 得到一行的單元格內容 */
                        HSSFRow row = sheet.getRow(r);
                        if (row != null) {

                             System.out.println("當前行: "+row.getRowNum()+ " 高度:"+row.getHeight()+ " 寬度: "+row.getLastCellNum()+ "HeightInPoints: "+row.getHeightInPoints()+ "當前表格的大小: "+row.getPhysicalNumberOfCells()+ "FirstCellNum: "+row.getFirstCellNum()+ "ZeroHeight: "+row.getZeroHeight());


                            /* 得到一行中每個單元格的內容 */
                            int cells = row.getPhysicalNumberOfCells();
                            for (short c = 0; c < cells; c++) {
                                HSSFCell cell = row.getCell(c);
                                HSSFCellStyle cellstyle = cell.getCellStyle();
                                System.out.println(/*"Alignment: "+cellstyle.getAlignment()+
                                        " BorderBottom: "+cellstyle.getBorderBottom()+
                                        " Alignment: "+cellstyle.getBorderLeft() +
                                        " BorderRight "+cellstyle.getBorderRight()+
                                        " BorderTop "+cellstyle.getBorderTop() +
                                        " BottomBorderColor "+cellstyle.getBottomBorderColor() +
                                        " DataFormat "+cellstyle.getDataFormat() +
                                        " FillBackgroundColor "+cellstyle.getFillBackgroundColor() +
                                        " FillForegroundColor "+cellstyle.getFillForegroundColor() +
                                        " FillPattern "+cellstyle.getFillPattern() +*/
                                        " FontIndex "+cellstyle.getFontIndex() /*+
                                        " Hidden "+cellstyle.getHidden() +
                                        " Indention "+cellstyle.getIndention() +
                                        " Index "+cellstyle.getIndex() +
                                        " LeftBorderColor "+cellstyle.getLeftBorderColor() +
                                        " Locked "+cellstyle.getLocked() +
                                        " RightBorderColor "+cellstyle.getRightBorderColor() +
                                        " Rotation "+cellstyle.getRotation() +
                                        " TopBorderColor "+cellstyle.getTopBorderColor() +
                                        " VerticalAlignment "+cellstyle.getVerticalAlignment() +
                                        " WrapText "+cellstyle.getWrapText()*/ );
                                HSSFComment comment = cell.getCellComment();
                                /*System.out.println("當前列: "
                                        + cell.getCellNum());*/

                                if (cell != null) {
                                    String value = null;
                                    switch (cell.getCellType()) {
                                    /*
                                     * case HSSFCell.CELL_TYPE_FORMULA: value =
                                     * "FORMULA "; break;
                                     */
                                    case HSSFCell.CELL_TYPE_NUMERIC:
                                        value = "   "
                                                + cell.getNumericCellValue();
                                        break;
                                    /* 此行表示單元格的內容爲string類型 */
                                    case HSSFCell.CELL_TYPE_STRING:
                                        value = "  "
                                                + cell.getRichStringCellValue();
                                        System.out.print(value);

                                        break;
                                    /* 此行表示該單元格值爲空 */
                                    case HSSFCell.CELL_TYPE_BLANK:
                                        break;
                                    /*
                                     * case HSSFCell.CELL_TYPE_BOOLEAN: value =
                                     * "BOOLEAN=" + cell.getBooleanCellValue();
                                     *
                                     * break;
                                     */
                                    /*
                                     * case HSSFCell.CELL_TYPE_ERROR: value =
                                     * "ERROR=" + cell.getErrorCellValue();
                                     *
                                     * break;
                                     */
                                    default:
                                    }
                                }
                            }
                            System.out.println();
                        }
                    }
                    System.out.println();
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}