是否可以通过IP匹配在htacces中停用缓存规则？

Question

是否可以通过IP匹配（例如＆lt;）来停用htaccess中的mod_expires.c，mod_headers.c等缓存规则。 FilesMatch＆gt;或者＆lt; IfModule＆gt;？

到目前为止，我没有找到任何可能的解决方案。任何提示？

Answer 1

如果要停用缓存，可以在from itertools import islice import re class SomeClass(object): def __init__(self, file): self.file = file def search(self, word, i): self.file.seek(0) # seek to start of file for line in self.file: if re.search(word, line) and i == 0: line = next(self.file) yield line elif re.search(word, line) and i == 1: line = next(self.file) line = next(self.file) yield line def sort_info1(self): return list(islice(self.search('THING',0), 0, None, 2)) def sort_info2(self): return list(islice(self.search('THING',1), 2, None, 2)) info1 = SomeClass(open("test.dat")).sort_info1() info2 = SomeClass(open("test.dat")).sort_info2() 文件中使用以下内容：

public class ScanQrCodeActivity extends AppCompatActivity {

    protected void attachBaseContext(Context context) {
        super.attachBaseContext(CalligraphyContextWrapper.wrap(context));
    }

    private static final String TAG = "Barcode-reader";
    // intent request code to handle updating play services if needed.
    private static final int RC_HANDLE_GMS = 9001;
    // permission request codes need to be < 256
    private static final int RC_HANDLE_CAMERA_PERM = 2;

    private DatabaseHandler helper;
    private TextView title_app;
    private CameraSource mCameraSource;
    private CameraSourcePreview mPreview;
    private GraphicOverlay<BarcodeGraphic> mGraphicOverlay;
    String passwordString, eightChars, barcodeString, decodedBarcodeValue, OTP;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_scan_qr_code);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        toolbar.setNavigationIcon(R.drawable.ic_arrow_back);
        title_app = (TextView) findViewById(R.id.toolbar_title);


        helper = new DatabaseHandler(this);

        mPreview = (CameraSourcePreview) findViewById(R.id.preview);
        mGraphicOverlay = (GraphicOverlay<BarcodeGraphic>) findViewById(R.id.graphicOverlay);
        eightChars = getIntent().getStringExtra("eightChars");
        passwordString = getIntent().getStringExtra("passwordString");

        int rc = ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA);
        if (rc == PackageManager.PERMISSION_GRANTED) {
            createCameraSource();
        } else {
            requestCameraPermission();
        }

        Snackbar snackbar = Snackbar.make(mGraphicOverlay, R.string.zeskanuj_wygenerowany_kod, Snackbar.LENGTH_INDEFINITE);
        View mView = snackbar.getView();
        TextView mTextView = (TextView) mView.findViewById(android.support.design.R.id.snackbar_text);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1)
            mTextView.setTextAlignment(View.TEXT_ALIGNMENT_CENTER);
        else
            mTextView.setGravity(Gravity.CENTER_HORIZONTAL);
        snackbar.show();

    }

    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.stage2, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (item.getItemId() == android.R.id.home) {
            finish();
        }
        return super.onOptionsItemSelected(item);
    }

    private void requestCameraPermission() {
        Log.w(TAG, "Camera permission is not granted. Requesting permission");

        final String[] permissions = new String[]{Manifest.permission.CAMERA};

        if (!ActivityCompat.shouldShowRequestPermissionRationale(this,
                Manifest.permission.CAMERA)) {
            ActivityCompat.requestPermissions(this, permissions, RC_HANDLE_CAMERA_PERM);
            return;
        }

        final Activity thisActivity = this;

        View.OnClickListener listener = new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                ActivityCompat.requestPermissions(thisActivity, permissions,
                        RC_HANDLE_CAMERA_PERM);
            }
        };

        findViewById(R.id.topLayout).setOnClickListener(listener);
        Snackbar.make(mGraphicOverlay, "Aby móc wykryć Qr Koda potrzebny jest dostęp do kamery.",
                Snackbar.LENGTH_INDEFINITE)
                .setAction(R.string.ok, listener)
                .show();

    }

    @SuppressLint("InlinedApi")
    private void createCameraSource() {

        boolean autoFocus = false;
        boolean useFlash = false;
        Context context = getApplicationContext();

        BarcodeDetector barcodeDetector = new BarcodeDetector.Builder(context).build();
        BarcodeTrackerFactory barcodeFactory = new BarcodeTrackerFactory(mGraphicOverlay);
        barcodeDetector.setProcessor(
                new MultiProcessor.Builder<>(barcodeFactory).build());

        barcodeFactory.setNewBarcodeListener(new BarcodeTrackerFactory.OnNewBarcodeListener() {
            @Override
            public void onNewItem(final Barcode item) {
                Log.d("BarcodeFound", "Found new barcode! " + item.rawValue);

                title_app.post(new Runnable() {
                    @Override
                    public void run() {


        if (!barcodeDetector.isOperational())

        {
            IntentFilter lowstorageFilter = new IntentFilter(Intent.ACTION_DEVICE_STORAGE_LOW);
            boolean hasLowStorage = registerReceiver(null, lowstorageFilter) != null;

            if (hasLowStorage) {
                Toast.makeText(this, R.string.low_storage_error, Toast.LENGTH_LONG).show();
                Log.w(TAG, getString(R.string.low_storage_error));
            }
        }

        CameraSource.Builder builder = new CameraSource.Builder(getApplicationContext(), barcodeDetector)
                .setFacing(CameraSource.CAMERA_FACING_BACK)
                .setRequestedPreviewSize(1600, 1024)
                .setRequestedFps(15.0f);


        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH)

        {
            builder = builder.setFocusMode(
                    autoFocus ? Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE : null);
        }

        mCameraSource = builder
                .setFlashMode(useFlash ? Camera.Parameters.FLASH_MODE_TORCH : null)
                .

                        build();
    }


    @Override
    protected void onResume() {
        super.onResume();
        startCameraSource();
    }

    @Override
    protected void onPause() {
        super.onPause();
        if (mPreview != null) {
            mPreview.stop();
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        if (mPreview != null) {
            mPreview.release();
        }
    }

    private void startCameraSource() throws SecurityException {
        // check that the device has play services available.
        int code = GoogleApiAvailability.getInstance().isGooglePlayServicesAvailable(
                getApplicationContext());
        if (code != ConnectionResult.SUCCESS) {
            Dialog dlg =
                    GoogleApiAvailability.getInstance().getErrorDialog(this, code, RC_HANDLE_GMS);
            dlg.show();
        }

        if (mCameraSource != null) {
            try {
                mPreview.start(mCameraSource, mGraphicOverlay);
            } catch (IOException e) {
                Log.e(TAG, "Unable to start camera source.", e);
                mCameraSource.release();
                mCameraSource = null;
            }
        }
    }

}

请确保将其放在.htaccess文件的顶部，并在输入后清除缓存。从那时起，它还将要求缓存重新验证。