java AES密钥存储

Question

大家好，我在将AES密钥存储到密钥库时遇到问题

这是我的代码：

public Key getKey(String alias) {
    try {
        FileInputStream fStream = new FileInputStream(path);
        keyStore.load(fStream, this.password.toCharArray());
        Key key = keyStore.getKey(alias, null);
        fStream.close();

        return key;
    } catch (Exception e) {
        e.printStackTrace();
    }

    return null;
}

public void storeKey(Key key, String alias) {
    try {
        keyStore.setKeyEntry(alias, key.getEncoded(), null);
        OutputStream writeStream = new FileOutputStream(path);
        keyStore.store(writeStream, this.password.toCharArray());
        writeStream.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

所以storeKey可以正常工作，但当我调用getKey（）时，会出现以下异常：

java.security.UnrecoverableKeyException: Get Key failed: AES SecretKeyFactory not available
at sun.security.pkcs12.PKCS12KeyStore.engineGetKey(Unknown Source)
at java.security.KeyStore.getKey(Unknown Source)
at sm130075.vl130298.crypto.KeyStoreManager.getKey(KeyStoreManager.java:51)
at sm130075.vl130298.crypto.AES.<init>(AES.java:36)
at sm130075.vl130298.crypto.AES.main(AES.java:84)

编辑： 所以我发现问题很可能是SecretFactory不知道如何为AES生成密钥。有人知道我该怎么解决吗