Apache Poi: Converting from HSSF to SS?

问题

I've converted all of my old code in HSSF to SS except for the portion where I make the work book.

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Old Code: HSSFWorkbook wb = new HSSFWorkbook(new FileInputStream(file));

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New Non-working Code: Workbook[] wb2 = new Workbook[] {new FileInputStream};

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This is an example of conversion that the site gave:

NEW: Workbook[] wbs = new Workbook[] { new HSSFWorkbook(), new XSSFWorkbook() }; OLD: HSSFWorkbook wb = new HSSFWorkbook();

回答1:

Workbook is an interface, you can't instantiate it. Instead, what you want is WorkbookFactory. Pass that either a File or an InputStream, and it'll give you the appropriate Workbook instance

Your old code:

HSSFWorkbook wb = new HSSFWorkbook(new FileInputStream(file));

Becomes:

Workbook wb = WorkbookFactory.create(file);

来源：https://stackoverflow.com/questions/10854646/apache-poi-converting-from-hssf-to-ss