我試圖使用 Apache POI 將保護添加到 MS Excel 文件中，當我進行一些測試時它工作正常，但是當我在 Weblogic Server 12 運行時證明該功能時它失敗了。這是我的代碼：public static void parseFileToSecureFile(String fullFileName, String password) throws MyException{    POIFSFileSystem fs = new POIFSFileSystem();    EncryptionInfo info =        new EncryptionInfo(EncryptionMode.agile, CipherAlgorithm.aes256, HashAlgorithm.sha512, -1, -1, null);    Encryptor enc = info.getEncryptor();    enc.confirmPassword(password);    OPCPackage opc = null;    OutputStream os = null;    FileOutputStream fos = null;    try {        opc = OPCPackage.open(new File(fullFileName), PackageAccess.READ_WRITE);        os = enc.getDataStream(fs);        opc.save(os);        fos = new FileOutputStream(fullFileName);        fs.writeFilesystem(fos);    } catch (Exception e) {        logger.error("error: "+e.getMessage(), e);        throw new MyException("An Error");    }finally {         fs.close();         fos.close();    }}public static void main(String[] args){    System.out.println("Inicia");    try {        parseFileToSecureFile("/my_path/my_file.xlsx", "11");    } catch (MyException e) {        e.printStackTrace();    }    System.out.println("Finaliza");}正如我告訴你的，如果我從我的“主要方法”運行我的代碼“原樣”它可以工作，但如果我在運行時從 Web 應用程序調用該方法，我有下一個異常：org.apache.poi.EncryptedDocumentException: java.lang.ClassCastException: org.apache.poi.poifs.crypt.agile.AgileEncryptionInfoBuilder cannot be cast to org.apache.poi.poifs.crypt.EncryptionInfoBuilder    at org.apache.poi.poifs.crypt.EncryptionInfo.<init>(EncryptionInfo.java:186)    at org.apache.poi.poifs.crypt.EncryptionInfo.<init>(EncryptionInfo.java:153)    at com.tets.test.test.FileCipher.parserFileToSecureFile(FileCipher.java:39)    at com.test.test.test.backing.MyAdmin.doSomething(Something.java:387)    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)