I would like to connect to a MySQL Database hosted on the same server with a Tomcat Server from my Android App without using PHP. Is there any way to do this? I found some solutions but all use PHP.
Can I connect directly or do I have to do it through a Web server?
Because you're running on Tomcat I imagine the best way to access the database would be to write a webservice that handles the communication between the app and the server.
The webservice will be written in Java to run on TomCat using JSP.
I'm guessing you're trying to communicate directly with the MySQL database (i.e. run SQL commands on the database directly) but I don't think you can do this (although never tried or looked into it), I have always been under the impression that you need some code on the server to sit inbetween.
It should be common sense, that directly communicating with databases over the web is a "no go" security wise and with mobile devices a pain regarding the connectivity.
Setup a webservice with JSP or Grails (which I find comes with less workload) and deploy it to your tomcat server.
Hence the thought, you already have a Tomcat running, one assumes you have a java web app running. Try adding a webservice to that app or look in the documentation, if there already is one.
You actually cannot do this with Android the main reason is performance it is really expensive to keep a remote connection alive than rather just call Web Services on demand, and it is more portable.
So i recommend you to play around with your favorite language creating services that access to your database and digest the output (XML or JSON) with android.
BTW i also think this have been asked Android MySQL Connectoin and here is a nice tuto about it (but with PHP) it should be fairly easy to do it in Java.
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I want to create a web server at home and upgrade it to communicate with my Android app. Eventually I would like to store SQL data on it and collect data from it in my Android app. I have no idea where to start, and I am worried that I might start with one tutorial which will eventually not be able to give me the end result I want.(I am looking for tutorials at the moment since I have no knowledge on server side coding or anything similar)
So I was wondering if XAMPP is the thing I am looking for? I found many tutorials on that but I can't find anywhere if it is possible to eventually store my SQL data and communicate with android app. Also I read that XAMPP is for testing purposes and I would like to start learning something I might actually use as a web server later on for commercial apps.
If not, what else can I use? Many websites suggest JSON server communication but I am still not sure if that is the thing I am looking for.
Install xamp on your pc
Create the php file to communicate with the android data
Use http://10.0.2.2:80/ as a server ip in your android project
Consider Following link for more information
http://www.androidhive.info/2012/05/how-to-connect-android-with-php-mysql/
I am building an android application that communicates to a remote server, this fetches data from the remote server database as well as transfer information from the android app to the server database. I actually establish the connection between the remote server and the android app using the httpClient with json, php and mysql functions.
This idea works very well, buh after testing the system for some time, I realised the app takes a bit longer in connecting to the server although I use the async task class to work on the background and also use a very fast internet access.
The main aim, is to make the application very fast in connecting to the remote servers.
MY QUESTION
Is there a better way I can make the application establish or faster in connecting to the remote servers. I would be very grateful for any idea or better still links to read more about it. Thanks in advance.
Use the Volley library. It is very fast for accessing the data from server developed by google team.
Their are some example you can see in below links.
visit:
Click here
I simply have a small question..
I was wondering about Android connection with MySql , As I know there is no any direct connection between Android with MySql, we need to use JSON or any other library to connect. Well using JSON and configure it with some PHP files, is this the only way we can get and query datas from mysql,so far, and is it desirable this way??? or there are some other way how to get the datas from mysql into listview or wherever in Android?
Thanks,
You can deploy the mysql JDBC driver into your Android application. There are several blogs that show you how to do it. How functional it will be I can't tell. Just keep in mind that if you want Android devices to connect to your mysql server directly you need to expose the mysql server to the internet directly. This is generally not recommended. Also the data flowing between mysql and the device will be unencrypted.
Essentially doing this moves your architecture back to client server model. If you later wanted to support iPhones, blackberry or Windows mobile you will have to make those devices also connect directly to mysql. By using a webservice or even your own custom developed server you can remove the dependency on the MySQL driver. In the long run this will probably be a better model to follow.
The choice is yours however.
I am trying to create an Android app similar to google latitude and I am not sure what to use in terms of databases. I thought of using SQLite (which is serverless), but I still need a server in order to make two clients communicate to each other. I am really new with connecting an app with a server or a database, so any help would be appreciated.
I dont believe there is a way to remote connect to any database from Android (could be wrong, but when I check it wasnt possible). Your going to have to use SQLite for your local, and i recommend using MySQL for the server side, and use JSON to retrieve information via a service page.
OK, what you want to do is a client-server architecture. You need to think about what kind of data you want to store, and where to do that.
Obviously, on the server side, you need to store data. It will depends what your server is, and what technology you use for it. This question has nothing to do with Android, as you'll probably communicate to your server using HTTP or another protocol that would allow it to communicate to your android app (the client) and maybe later on, to different kind of clients (web app, iOS, etc.). So you can use any database technology, Oracle, MySQL, Postgres, whatever. You can even build your server application using Microsoft .NET technology, or anything else. You're not tied to Java / Android (although my personal technology stack of choice would probably be a Jetty HTTP server, Oracle database or MySQL if you want lighter, and Java of course).
On the client side, you may also want some data storage, and in this case it depends on the size and complexity of what you want to store. For simple key-value pairs, use SharedPreferences. For more complex data structures, SQLite is your technology of choice.
I intend to write a multi platform smartphone app (currently only I-phone and android).
Which has to send and recieve information from a web server I intend to create.
The web server will do all the algorithms, and handles also DB connection.
My question, is how is this best accomplished, which kind of web-server technology fit best the scenario, and supports connections from various devices.
Basically, I thought about implementing a simple TCP/IP protocol, making the app (on the phone) the client, and server on the web on the other side. however, I want to deploy the application to an application server (maybe google app, JBOSS, etc.) and I don't want to be stopped by various firewalls.
does anyone has an idea ?
edit: few things are certain, the application server will be written in java, and db will be mysql.
This is a very broad question and any suggestion about which backend technology to use will depend on your language preferences, your other requirements, etc.
For starters, I'd suggest JSON over HTTP as a transport mechanism: it's easy to parse on both client and server-side, and it's directly usable in Javascript should the need arise. XML is another choice, but it can be annoying to parse.
JSON-over-HTTP (or XML) will be completely device agnostic and won't have the firewall/proxy problems you'll run into trying to do a custom-implemented TCP-based protocol.
For the backend, may folks use MySQL or Postgres for their database, and connect to it from Java, C#, Ruby, PHP, or other server-side languages. Use what you're comfortable with or what you want to learn next.
Why not write the server-side as a regular web application - in whatever technology you like (php, asp.net, java)? This way you can deploy the app on any web server and your client apps on the phones would simply establish a connection to an HTTP server. Normally, firewalls would not be a problem in such situation.
I have used this setup for my apps (both android and iphone) - connecting to a web server app written in php with postgres back-end.