Java 您的 InputStream 既不是 OLE2 流，也不是 OOXML 流
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Your InputStream was neither an OLE2 stream, nor an OOXML stream
提问by user1493834
I am using Apache Commons to upload a .docx file in google app engine as explained in this link File upload servlet. While uploading, I also want to extract text by using Apache POI libraries.
我正在使用 Apache Commons 在谷歌应用引擎中上传 .docx 文件，如此链接 文件上传 servlet 中所述。上传时，我还想使用 Apache POI 库提取文本。
If I pass this to the POI API:
如果我将其传递给 POI API：
InputStream stream = item.openStream();
I get the below exception:
我得到以下异常：
java.lang.IllegalArgumentException: Your InputStream was neither an OLE2 stream, nor an OOXML stream
public static String docx2text(InputStream is) throws Exception {
return ExtractorFactory.createExtractor(is).getText();
}
I am uploading a valid .docx document. The POI API works fine if I pass a FileInputStream object.
我正在上传有效的 .docx 文档。如果我传递 FileInputStream 对象，POI API 工作正常。
FileInputStream fs=new FileInputStream(new File("C:\docs\mydoc.docx"));
采纳答案by Peter Knego
I don't know POI internal implementation, but my guess would be that they need a seekable stream. The streams returned by servlets (and networking in general) aren't seekable.
我不知道 POI 的内部实现，但我的猜测是他们需要一个可查找的流。servlet（以及一般的网络）返回的流是不可查找的。
Try reading the whole contents and then wrapping it in ByteArrayInputStream:
尝试阅读全部内容，然后将其包装在ByteArrayInputStream：
byte[] bytes = getBytes(item.openStream());
InputStream stream = new ByteArrayInputStream(bytes);
public static byte[] getBytes(InputStream is) throws IOException {
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
int len;
byte[] data = new byte[100000];
while ((len = is.read(data, 0, data.length)) != -1) {
buffer.write(data, 0, len);
}
buffer.flush();
return buffer.toByteArray();
}
回答by user1493834
The issue is solved ..
问题解决了..
while (iterator.hasNext()) { //Apache commons file upload code
FileItemStream item = iterator.next();
InputStream stream = item.openStream();
ByteArrayInputStream bs=new ByteArrayInputStream(IOUtils.toByteArray(stream));
POITextExtractor extractor = ExtractorFactory.createExtractor(bs);
System.out.println(extractor.getText());
}
