如何获取应用自身的bundleName

bundleManager.getBundleInfo(bundleName, bundleFlags, userId, (err, data) => { 
  if (err) { 
    hilog.error(0x0000, 'testTag', 'getBundleInfo failed: %{public}s', err.message); 
  } else { 
    hilog.info(0x0000, 'testTag', 'getBundleInfo successfully: %{public}s', JSON.stringify(data)); 
  } 
});

bundleManager.getBundleInfoForSelf(bundleFlags).then((data) => { 
  hilog.info(0x0000, 'testTag', 'getBundleInfoForSelf successfully. Data: %{public}s', JSON.stringify(data)); 
}).catch((err: BusinessError) => { 
  hilog.error(0x0000, 'testTag', 'getBundleInfoForSelf failed. Cause: %{public}s', err.message); 
});