[英]How to open password protected docx file in java?
我想使用Apache POI打開受密碼保護的docx文件。 有人可以幫我提供完整的代碼嗎? 無法獲得此代碼的解決方案
線程“主”中的異常org.apache.poi.poifs.filesystem.OfficeXmlFileException:提供的數據似乎在Office 2007+ XML中。 您正在調用POI的OLE2 Office文檔。 您需要在org.apache.poi.poifs.storage上的org.apache.poi.poifs.storage.HeaderBlock。(HeaderBlock.java:126)處調用POI的不同部分來處理此數據(例如XSSF而不是HSSF)。 org.apache.poi.poifs.filesystem.NPOIFSFileSystem。(NPOIFSFileSystem.java:301)的.HeaderBlock。(HeaderBlock.java:113)org.apache.poi.hssf.usermodel.HSSFWorkbook。(HSSFWorkbook.java:413)在org.apache.poi.hssf.usermodel.HSSFWorkbook。(HSSFWorkbook.java:394)
POIFSFileSystem fs=new POIFSFileSystem(new FileInputStream("D:/abc.docx"));
EncryptionInfo info=new EncryptionInfo(fs);
Decryptor decryptor=Decryptor.getInstance(info);
if(!decryptor.verifyPassword("user"))
{
throw new RuntimeException("document is encrypted");
}
InputStream in=decryptor.getDataStream(fs);
HSSFWorkbook wb=new HSSFWorkbook(in);
File f=new File("D:/abc5.docx");
wb.write(f);
解密Microsoft Office基於XML格式的基本代碼以基於XML的格式-Decryption顯示 。
但是,當然必須知道*.docx
(它是Office Open XML格式的Word
文件)不能是HSSFWorkbook
,它可以是二進制BIFF
文件格式的Excel
工作簿,而必須是XWPFDocument
。
所以:
import java.io.InputStream;
import java.io.FileInputStream;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.poi.xwpf.extractor.XWPFWordExtractor;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.apache.poi.poifs.crypt.EncryptionInfo;
import org.apache.poi.poifs.crypt.Decryptor;
import java.security.GeneralSecurityException;
public class ReadEncryptedXWPF {
static XWPFDocument decryptdocx(POIFSFileSystem filesystem, String password) throws Exception {
EncryptionInfo info = new EncryptionInfo(filesystem);
Decryptor d = Decryptor.getInstance(info);
try {
if (!d.verifyPassword(password)) {
throw new RuntimeException("Unable to process: document is encrypted");
}
InputStream dataStream = d.getDataStream(filesystem);
return new XWPFDocument(dataStream);
} catch (GeneralSecurityException ex) {
throw new RuntimeException("Unable to process encrypted document", ex);
}
}
public static void main(String[] args) throws Exception {
POIFSFileSystem filesystem = new POIFSFileSystem(new FileInputStream("abc.docx"));
XWPFDocument document = decryptdocx(filesystem, "user");
XWPFWordExtractor extractor = new XWPFWordExtractor(document);
System.out.println(extractor.getText());
extractor.close();
}
}
我已經解決了。 代碼如下
POIFSFileSystem fs=new POIFSFileSystem(new FileInputStream("D:/abc.docx"));
EncryptionInfo info=new EncryptionInfo(fs);
Decryptor decryptor=Decryptor.getInstance(info);
XWPFDocument document=null;
if(decryptor.verifyPassword("password"))
{
InputStream dataStream = decryptor.getDataStream(fs);
document = new XWPFDocument(dataStream);
}else{
throw new Exception("file is protected with password...please open with right password");
}
File f=new File("D:/abc.docx");
FileOutputStream fos = new FileOutputStream(f);
document.write(fos);
document.close();
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