Question

我想用Java编辑现有的Excel文件，以便向现有的模板excel文件添加更多数据。所以我为此目的使用了Jexcel。

正如各地建议的那样，我尝试了以下内容，

Workbook existingWorkbook = Workbook.getWorkbook(new File("H://"+file_name));
WritableWorkbook copy = Workbook.createWorkbook(new File("H://"+file_name+"_temp1.xls"));

但它在第二行显示异常。

jxl.common.AssertionFailed
    at jxl.common.Assert.verify(Assert.java:37)
    at jxl.read.biff.SheetReader.handleObjectRecord(SheetReader.java:1811)
    at jxl.read.biff.SheetReader.read(SheetReader.java:1059)
    at jxl.read.biff.SheetImpl.readSheet(SheetImpl.java:716)
    at jxl.read.biff.WorkbookParser.getSheet(WorkbookParser.java:257)
    at jxl.write.biff.WritableWorkbookImpl.copyWorkbook(WritableWorkbookImpl.java:969)
    at jxl.write.biff.WritableWorkbookImpl.<init>(WritableWorkbookImpl.java:343)
    at jxl.Workbook.createWorkbook(Workbook.java:339)
    at jxl.Workbook.createWorkbook(Workbook.java:320)
    at run_book.process_input.<init>(process_input.java:83)        <--create workbook stt.
    .........<stack trace goes on>

那么如何编辑已经存在的jexcel文件呢？我确实得到了另一个警告

警告：工作表上的文字对象＆＃34; sheet2＆＃34;不支持 - 省略

提前致谢：）

Answer 1

找出问题所在。

在写回（编辑）同一文件之前，我们必须关闭输入文件。

所以用Jexcel编辑现有的Excel文件

File inp = new File("H://"+file_name);
File out = new File("H://"+file_name);
Workbook existingWorkbook = Workbook.getWorkbook(inp);// This opens up a read-only copy of the workbook
WritableWorkbook copy = Workbook.createWorkbook(out,existingWorkbook); // This opens up a writable workbook so that we can edit the copy
//..........Some writes to excel workbook...........
// Now before writing & closing the copy, first close the existing one
existingWorkbook.close();    // Important: Close it before writing the copy with copy.write();
inp.close();
copy.write();
copy.close();

Answer 2

我遇到了同样的问题并解决了我通过maven更新到最新版本的jxl.jar的问题。执行此操作后，运行destinationWorkbook = Workbook.createWorkbook(outputFile, sourceWorkbook);时出现了很长时间的延迟，但成功完成且没有错误。

如何使用Jexcel API编辑/修改Java中的现有Excel文件

2 个答案: