excel 操作
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import java.awt.List;import java.io.*;import java.text.DecimalFormat;import java.text.SimpleDateFormat;import java.util.*;import jxl.Cell;import jxl.CellType;import jxl.DateCell;import jxl.LabelCell;import jxl.NumberCell;import jxl.Sheet;import jxl.Workbook;import jxl.read.biff.BiffException;import jxl.write.Label;import jxl.write.WritableCellFormat;import jxl.write.WritableSheet;import jxl.write.WritableWorkbook;import jxl.write.WriteException;import jxl.write.biff.RowsExceededException;public class Test7 {public static void main(String args[]) throws BiffException, IOException {int C;ArrayList<ArrayList<String>> dd = new ArrayList<ArrayList<String>>();for(int i=1;i<=20;i++){DateRandomTest bb = new DateRandomTest(); Date randomDate = bb.randomDate("2009-01-01", "2012-08-31"); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); ArrayList<ArrayList<String>> aa = readExcel("d:/lwg/Mzhi/joint-hardware-inventory-service-request-"+sdf.format(randomDate)+".xls"); dd.addAll(aa); } C=(int) (Math.random()*100); writeExcel("d:/xls/aa"+ +C +".xls", dd);} /**把数组内容写到Excel文件,写到本地文件中 * @param data 包含行列的数组 * @return 字节数组 * @author yaofuyuan * @createTime 2012-04-28 16:00 */ public static void writeExcel(String filname,ArrayList<ArrayList<String>> data){ WritableWorkbook wwb = null; try { //首先要使用Workbook类的工厂方法创建一个可写入的工作薄(Workbook)对象 wwb =Workbook.createWorkbook(new File(filname)); } catch (IOException e) { e.printStackTrace(); } if(wwb!=null){ //创建一个可写入的工作表 //Workbook的createSheet方法有两个参数,第一个是工作表的名称,第二个是工作表在工作薄中的位置 WritableSheet ws = wwb.createSheet("sheet1", 0); //下面开始添加单元格 for(int i=0,rowLen=data.size();i<rowLen;i++){ ArrayList<String> row=data.get(i); for(int j=0,colLen=row.size();j<colLen;j++){ //这里需要注意的是,在Excel中,第一个参数表示列,第二个表示行 Label labelC = new Label(j, i, row.get(j)); try { //将生成的单元格添加到工作表中 ws.addCell(labelC); } catch (RowsExceededException e) { e.printStackTrace(); } catch (WriteException e) { e.printStackTrace(); } } } try { //从内存中写入文件中 wwb.write(); //关闭资源,释放内存 wwb.close(); } catch (IOException e) { e.printStackTrace(); } catch (WriteException e) { e.printStackTrace(); } } } private static Object row(String string) {// TODO Auto-generated method stubreturn null;}/**//**生成一个Excel文件 * @param fileName 要生成的Excel文件名 *//* public static void writeExcel1(String fileName,String filele){ WritableWorkbook wwb = null; try { //首先要使用Workbook类的工厂方法创建一个可写入的工作薄(Workbook)对象 wwb = Workbook.createWorkbook(new File(fileName)); } catch (IOException e) { e.printStackTrace(); } if(wwb!=null){ //创建一个可写入的工作表 //Workbook的createSheet方法有两个参数,第一个是工作表的名称,第二个是工作表在工作薄中的位置 WritableSheet ws = wwb.createSheet("sheet1", 0); //下面开始添加单元格 for(int i=0;i<10;i++){ for(int j=0;j<5;j++){ //这里需要注意的是,在Excel中,第一个参数表示列,第二个表示行 Label labelC = new Label(j, i, "这是第"+(i+1)+"行,第"+(j+1)+"列"); try { //将生成的单元格添加到工作表中 ws.addCell(labelC); } catch (RowsExceededException e) { e.printStackTrace(); } catch (WriteException e) { e.printStackTrace(); } } } try { //从内存中写入文件中 wwb.write(); //关闭资源,释放内存 wwb.close(); } catch (IOException e) { e.printStackTrace(); } catch (WriteException e) { e.printStackTrace(); } } } */ /* public static String readExcel(String file){ StringBuffer sb = new StringBuffer(); Workbook wb = null; try { //构造Workbook(工作薄)对象 wb=Workbook.getWorkbook(new File(file)); } catch (BiffException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } if(wb==null) return null; //获得了Workbook对象之后,就可以通过它得到Sheet(工作表)对象了 Sheet[] sheet = wb.getSheets(); if(sheet!=null&&sheet.length>0){ //对每个工作表进行循环 for(int i=0;i<sheet.length;i++){ //得到当前工作表的行数 int rowNum = sheet[i].getRows(); for(int j=0;j<rowNum;j++){ //得到当前行的所有单元格 Cell[] cells = sheet[i].getRow(j); if(cells!=null&&cells.length>0){ //对每个单元格进行循环 for(int k=0;k<cells.length;k++){ //读取当前单元格的值 String cellValue = cells[k].getContents(); sb.append(cellValue+" "); } } sb.append(" "); } sb.append(" "); } } //最后关闭资源,释放内存 wb.close(); return sb.toString(); } */ /**读取Excel文件的内容 * @param file 待读取的文件 * @return ArrayList<ArrayList<String>> 包括excel里的第一个工作簿的所有行列 * @author yaofuyuan * @createTime 2012-04-28 16:00 */ public static ArrayList<ArrayList<String>> readExcel(String fileName){ ArrayList<ArrayList<String>> data=new ArrayList<ArrayList<String>>(); Workbook wb = null; try { //构造Workbook(工作薄)对象 wb=Workbook.getWorkbook(new File(fileName)); } catch (BiffException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } if(wb==null) return data; //获得了Workbook对象之后,就可以通过它得到Sheet(工作表)对象了 Sheet[] sheet = wb.getSheets(); if(sheet!=null&&sheet.length>0){ Sheet sheet0=sheet[0]; //得到当前工作表的行数 int rowNum = sheet0.getRows(); for(int i=0;i<rowNum;i++){ //得到当前行的所有单元格 Cell[] cells = sheet0.getRow(i); ArrayList<String> row=new ArrayList<String>(); if(cells!=null&&cells.length>0){ int cellNum=cells.length; //对每个单元格进行循环 for(int j=0;j< cellNum;j++){ //读取当前单元格的值 Cell c=cells[j]; String cellValue = cells[j].getContents(); if(!cellValue.trim().equals("7979")){// Interger.valueOf(value.trim)==7979 if(c.getType() == CellType.LABEL) { LabelCell labelc00 = (LabelCell)c; cellValue = labelc00.getString(); }else if(c.getType() == CellType.NUMBER) { NumberCell numc10 = (NumberCell)c; cellValue = getFormatNumber(numc10.getValue()); }else if(c.getType() == CellType.DATE) { DateCell datec11 = (DateCell)c; cellValue = getFormatTime(datec11.getDate()); } row.add(cellValue); } } } data.add(row); } } //最后关闭资源,释放内存 wb.close(); return data; } public static String getFormatNumber(double n) { DecimalFormat df = new DecimalFormat("#.##########"); return df.format(n); } public static String getFormatTime(Date logtime) { if (null == logtime) { logtime = new Date(); } SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); String time = ""; try { time = sdf.format(logtime); } catch (Exception e) { e.printStackTrace(); } return time; } public class Excel { public Excel() { } public void CreateWorkbook(File file, double[] a) { try { if (!file.exists()) { //判断文件是否已存在,如果没有存在则创建新文件 jxl.write.WritableWorkbook wwb = Workbook.createWorkbook(new File("result.xls"+1)); jxl.write.WritableSheet ws = wwb.createSheet("Test Sheet 1", 0); int i = 0; ws.setColumnView(0, 20); //设置列宽 jxl.write.NumberFormat nf = new jxl.write.NumberFormat( "0.0000000000000000"); //定义数值格式 WritableCellFormat wcfN = new WritableCellFormat(nf); String str2 = "第" + 1 + "次试验"; Label label = new Label(0, 0, str2); ws.addCell(label); while (i < a.length) { jxl.write.Number num = new jxl.write.Number(0, i + 1, a[i], wcfN); ws.addCell(num); i++; } //写入Exel工作表 wwb.write(); //关闭Excel工作薄对象 wwb.close(); } else { Workbook rwb = Workbook.getWorkbook(file); File tempfile = new File(System.getProperty("user.dir") + "\\tempfile.xls"); WritableWorkbook wwb = Workbook.createWorkbook(tempfile, rwb); WritableSheet ws = wwb.getSheet(0); int num = rwb.getSheet(0).getColumns(); int num1 = num + 1; ws.setColumnView(num, 20); //设置列宽 String str2 = "第" + num1 + "次试验"; //添加列名 Label label = new Label(num, 0, str2); ws.addCell(label); int i = 0; jxl.write.NumberFormat nf = new jxl.write.NumberFormat( "0.000000000000000"); //定义数值格式 WritableCellFormat wcfN = new WritableCellFormat(nf); while (i < a.length) { jxl.write.Number number = new jxl.write.Number(num, i + 1, a[i], wcfN); ws.addCell(number); i++; } wwb.write(); wwb.close(); rwb.close(); String filename = file.getPath(); System.out.println("filename:" + filename); file.delete(); tempfile.renameTo(file); System.out.println("tempfile:" + tempfile.getPath()); System.out.println(tempfile.exists()); System.out.println(file.exists()); } } catch (Exception e) { e.printStackTrace(); } } } }