Android Studio-无法连接到LDAP服务器

Question

I want use LDAP in android studio, I use UnboundID LDAP SDK for Java in the latest version.

I use the command:

LDAPConnection ldap = new LDAPConnection("xxx.xxx.xx.xx", 389,"uid=guest3,ou=Users,dc=gal,dc=local", guest3);

Connection details:

• host: xxx.xxx.xx.xx
• port: 389
• dn: uid=guest3,ou=Users,dc=gal,dc=local
• password: guest3

But When I try to connect to the LDAP server, I get the following error:

LDAPException(resultCode=82 (local error), errorMessage='An error occurred while encoding the LDAP message or sending it to server xx.xxx.xx.xx:389: NetworkOnMainThreadException(trace='onNetwork(StrictMode.java:1303) / socketWrite(SocketOutputStream.java:111) / write(SocketOutputStream.java:157) / flushBuffer(BufferedOutputStream.java:82) / flush(BufferedOutputStream.java:140) / sendMessage(LDAPConnectionInternals.java:580) / sendMessage(LDAPConnection.java:4375) / process(SimpleBindRequest.java:556) / bind(LDAPConnection.java:2270) / bind(LDAPConnection.java:2215) / onClick(LoginActivity.java:57) / performClick(View.java:5610) / run(View.java:22265) / handleCallback(Handler.java:751) / dispatchMessage(Handler.java:95) / loop(Looper.java:154) / main(ActivityThread.java:6077) / invoke(Method.java:native) / run(ZygoteInit.java:866) / main(ZygoteInit.java:756)', ldapSDKVersion=4.0.4, revision=27051)')

If anyone know how to remedy this issue, it would be greatly appreciated. Thanks in advance!

Answer 1

NetworkOnMainThreadException Maybe try not to do network on the main thread. see for reference

Getting the click event

  public void onClick(View v) {
  new Thread(new Runnable() {
    public void run() {
      final Bitmap b = loadImageFromNetwork();
      mImageView.post(new Runnable() {
        public void run() {
          mImageView.setImageBitmap(b);
        }
      });
    }
  }).start();
}

The goal of AsyncTask is to take care of thread management for you. Our previous example can easily be rewritten with AsyncTask:

public void onClick(View v) {
  new DownloadImageTask().execute("http://example.com/image.png");
}

private class DownloadImageTask extends AsyncTask {
     protected Bitmap doInBackground(String... urls) {
         return loadImageFromNetwork(urls[0]);
     }

     protected void onPostExecute(Bitmap result) {
         mImageView.setImageBitmap(result);
     }
 }