我正在本地系统上读取一个 excel 文件。我正在使用 POI jar 版本 3.7，但出现错误 header 签名无效； 读取 -2300849302551019537 或十六进制 0xE011BDBFEFBDBFEF ， 预期 -2226271756974174256 或十六进制 0xE11AB1A1E011CFD0。
用 Excel 打开 xls 文件可以正常工作。
它发生的代码块: 有人有想法吗？
/**
* create a new HeaderBlockReader from an InputStream
*
* @param stream the source InputStream
*
* @exception IOException on errors or bad data
*/
public HeaderBlockReader(InputStream stream) throws IOException {
// At this point, we don't know how big our
// block sizes are
// So, read the first 32 bytes to check, then
// read the rest of the block
byte[] blockStart = new byte[32];
int bsCount = IOUtils.readFully(stream, blockStart);
if(bsCount != 32) {
throw alertShortRead(bsCount, 32);
}
// verify signature
long signature = LittleEndian.getLong(blockStart, _signature_offset);
if (signature != _signature) {
// Is it one of the usual suspects?
byte[] OOXML_FILE_HEADER = POIFSConstants.OOXML_FILE_HEADER;
if(blockStart[0] == OOXML_FILE_HEADER[0] &&
blockStart[1] == OOXML_FILE_HEADER[1] &&
blockStart[2] == OOXML_FILE_HEADER[2] &&
blockStart[3] == OOXML_FILE_HEADER[3]) {
throw new OfficeXmlFileException("The supplied data appears to be in the Office 2007+ XML. You are calling the part of POI that deals with OLE2 Office Documents. You need to call a different part of POI to process this data (eg XSSF instead of HSSF)");
}
if ((signature & 0xFF8FFFFFFFFFFFFFL) == 0x0010000200040009L) {
// BIFF2 raw stream starts with BOF (sid=0x0009, size=0x0004, data=0x00t0)
throw new IllegalArgumentException("The supplied data appears to be in BIFF2 format. "
+ "POI only supports BIFF8 format");
}
// Give a generic error
throw new IOException("Invalid header signature; read "
+ longToHex(signature) + ", expected "
+ longToHex(_signature));
}
最佳答案
只是一个想法，如果你使用 maven，请确保在资源标签中过滤设置为 false。 否则 maven 往往会在复制阶段损坏 xls 文件
关于java - 标题读取 xls 文件无效，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/13949792/