Java code example for converting excel to txt and vice versa
本篇文章主要介绍了java实现excel和txt文件互转的相关知识。具有很好的参考价值。下面跟着小编一起来看下吧
话不多说,请看代码:
import java.io.*; import jxl.*; import jxl.write.*; //用java将txt数据导入excel public class CreateXLS { public static void main(String args[]) { try { //打开文件 WritableWorkbook book= Workbook.createWorkbook(new File("测试.xls")); //生成名为“第一页”的工作表,参数0表示这是第一页 WritableSheet sheet=book.createSheet("第一页",0); //在Label对象的构造子中指名单元格位置是第一列第一行(0,0) //以及单元格内容为test Label label=new Label(0,0,"test"); //将定义好的单元格添加到工作表中 sheet.addCell(label); /*生成一个保存数字的单元格 必须使用Number的完整包路径,否则有语法歧义 单元格位置是第二列,第一行,值为789.123*/ jxl.write.Number number = new jxl.write.Number(1,0,789.123); sheet.addCell(number); //写入数据并关闭文件 book.write(); book.close(); }catch(Exception e) { System.out.println(e); } } }
import java.io.BufferedWriter; import java.io.File; import java.io.FileWriter; import java.io.IOException; import jxl.Cell; import jxl.Sheet; import jxl.Workbook; import jxl.read.biff.BiffException; //用java将excel数据导入txt public class WriteTxt { public static void main(String[] args) { // TODO Auto-generated method stub String filepath = "d:\\demo.xls"; try { Workbook workbook = Workbook.getWorkbook(new File(filepath)); Sheet sheet = workbook.getSheet(0); File file = new File("d:/1.txt"); FileWriter fw = new FileWriter(file); BufferedWriter bw = new BufferedWriter(fw); // j为行数,getCell("列号","行号") int j = sheet.getRows(); int y = sheet.getColumns(); for (int i = 0; i < j; i++) { for(int x=0; x<y; x++){ Cell c = sheet.getCell(x, i); String s = c.getContents(); bw.write(s); bw.write(" "); bw.flush(); } bw.newLine(); bw.flush(); } System.out.println("写入结束"); } catch (BiffException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } }
遇到的问题:
txt文件中单元格数据之间用|分割,用string.split("\\|");提取数据
用的jar包对excel2007不支持 从而导致转换出的是空文件
excel文件转txt文件时,用tab键分隔 分隔字符串数组时用String.split("\\ ",-1);
上线遇到的问题:
1.在windows上获取路径地址是以\分隔的,而在linux上获取的路径是以/分隔的,这要注意
2.默认情况下,Excel中每个单元格所能显示的数字为11位,输入超过11位的数值,系统自动将其转换为科学记数格式,当txt转excel时,有两种方法可以解决这个问题,第一种是在单元格数字前加个单引号,第二种是设置单元格的格式为文本格式,在上述代码中加入以下代码
WritableFont wf = new WritableFont(WritableFont.TIMES,12,WritableFont.NO_BOLD,false); WritableCellFormat wcfF = new WritableCellFormat(NumberFormats.TEXT); wcfF.setFont(wf); CellView cv = new CellView(); cv.setFormat(wcfF); cv.setSize(10*265); sheet.setColumnView(j, cv); Label label = new Label(j,n,s1[j]); sheet.addCell(label);
3. 当txt转excel在windows上转换成功时,到linux服务器上转出的excel中汉字变成了乱码,因为FileWriter fw = new FileWriter(file);
这句代码采用默认字符集解析,经过尝试,使用GBK解析文件,用以下代码可不出现乱码,
BufferedReader bw = new BufferedReader(new InputStreamReader(new FileInputStream(new File(filen)),"GBK"));
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