JAVA对Excel的基本操作(包括创建,更新,读取,拷贝等相关操作)

public static void main(String[] argv) {
		// 读Excel文件内容
		OperateExcel.readExcel("E:\\test1.xls");
		// OperateExcel.createExcelFile("E:\\test1.xls");
		// OperateExcel.updateExcel("E:\\test.xls");
		// 拷贝Excel文件
		// OperateExcel.copyExcel("D:\\Book1.xls", "E:\\moon.xls");
	}
 public static void readExcel(String excelFileName) {
		Workbook rwb = null;
		try {
			InputStream stream = new FileInputStream(excelFileName);
			rwb = Workbook.getWorkbook(stream);
			Sheet sheet = rwb.getSheet(0);
			Cell cell = null;
			int columns = sheet.getColumns();
			int rows = sheet.getRows();
			for (int i = 0; i < rows; i++)
				for (int j = 0; j < columns; j++) {
					cell = sheet.getCell(j, i);
					String str00 = cell.getContents();
					System.out.println(str00);
				}
			stream.close();
		} catch (IOException e) {
			e.printStackTrace();
		} catch (BiffException e) {
			e.printStackTrace();
		} finally {
			rwb.close();
		}
	}

 

public static void createExcelFile(String excelFileName) {
		try {
			WritableWorkbook wwb = Workbook.createWorkbook(new File(
					excelFileName));
			WritableSheet ws = wwb.createSheet("sheet1", 0);
			// also,The first parameter is column,the second parameter is row.
			// add normal label data
			Label label00 = new Label(0, 0, "Label00");
			ws.addCell(label00);
			// add font formating data
			WritableFont wf = new WritableFont(WritableFont.TIMES, 18,
					WritableFont.BOLD, true);
			WritableCellFormat wff = new WritableCellFormat(wf);
			Label label10 = new Label(1, 0, "Label10", wff);
			ws.addCell(label10);
			// add color font formating data
			WritableFont wf_color = new WritableFont(WritableFont.ARIAL, 10,
					WritableFont.NO_BOLD, false,
					UnderlineStyle.DOUBLE_ACCOUNTING, Colour.RED);
			WritableCellFormat wff_color = new WritableCellFormat(wf_color);
			wff_color.setBackground(Colour.GRAY_25); // set background coloe to
														// gray
			Label label20 = new Label(2, 0, "Label20", wff_color);
			ws.addCell(label20);

			// 合并单元格
			WritableFont wf_merge = new WritableFont(WritableFont.ARIAL, 10,
					WritableFont.NO_BOLD, false,
					UnderlineStyle.DOUBLE_ACCOUNTING, Colour.GREEN);
			WritableCellFormat wff_merge = new WritableCellFormat(wf_merge);
			wff_merge.setBackground(Colour.BLACK);
			Label label30 = new Label(3, 0, "Label30", wff_merge);
			ws.addCell(label30);
			Label label40 = new Label(4, 0, "Label40");
			ws.addCell(label40);
			Label label50 = new Label(5, 0, "Label50");
			ws.addCell(label50);
			// 合并 (0,3) (4,0)
			// attention : 如果合并后面的列不为空,那么就把后面格的内容清空,格式也是按前一个单元格的格式
			ws.mergeCells(3, 0, 4, 0);

			// 添加Number格式数据
			jxl.write.Number labelN = new jxl.write.Number(0, 1, 3.1415926);
			ws.addCell(labelN);

			// 添加带有formatting的Number对象
			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(1, 1, 3.1415926,
					wcfN);
			ws.addCell(labelNF);

			// 添加Boolean对象
			jxl.write.Boolean labelBoolean = new jxl.write.Boolean(2, 1, false);
			ws.addCell(labelBoolean);

			// 添加DateTime对象
			DateTime labelDT = new DateTime(3, 1, new Date());
			ws.addCell(labelDT);

			// 添加带有格式的DataTime数据
			DateFormat dtf = new DateFormat("yyyy-MM-dd hh:mm:ss");
			WritableCellFormat wcfDt = new WritableCellFormat(dtf);
			wcfDt.setBackground(Colour.YELLOW);
			DateTime labelDT_format = new DateTime(4, 1, new java.util.Date(),
					wcfDt);
			ws.addCell(labelDT_format);
			ws.mergeCells(4, 1, 5, 1); // 比较长,用两列来显示

			wwb.write();
			wwb.close();
		} catch (IOException e) {
			e.printStackTrace();
		} catch (WriteException e) {
			e.printStackTrace();
		}
	}

 

public static void updateExcel(String fileName) {
		try {
			jxl.Workbook rw = jxl.Workbook.getWorkbook(new File(fileName));
			WritableWorkbook wwb = Workbook.createWorkbook(new File(fileName),
					rw);
			// 这里其实执行的是一次copy操作,把文件先读到内存中,修改后再保存覆盖原来的文件来实现update操作
			WritableSheet ws = wwb.getSheet(0);
			WritableCell wc = ws.getWritableCell(0, 0);
			if (wc.getType() == CellType.LABEL) {
				Label l = (Label) wc;
				l.setString(wc.getContents() + "_new");
			}
			wwb.write();
			wwb.close();
		} catch (IOException e) {
			e.printStackTrace();
		} catch (WriteException e) {
			e.printStackTrace();
		} catch (BiffException e) {
			e.printStackTrace();
		}
	}

 

public static void copyExcel(String sourFileName, String destFileName) {
		try {
			jxl.Workbook rw = jxl.Workbook.getWorkbook(new File(sourFileName));
			WritableWorkbook wwb = Workbook.createWorkbook(new File(
					destFileName), rw);
			wwb.write();
			wwb.close();
		} catch (IOException e) {
			e.printStackTrace();
		} catch (WriteException e) {
			e.printStackTrace();
		} catch (BiffException e) {
			e.printStackTrace();
		}
	}