Android: Pulling data from a server?

I'm a newbie when it comes to client/server apps but I have an idea for an app but need a few ideas on 开发者_StackOverflow社区how to implement it. I want users to be able to submit say a post and the server would store it. Other users will be able to also submit posts...the posts will then be able to be viewed as a list updated from the server. What is the best way to ndo this with android? JSON? SQL? What have you found easy? Thanks any suggestions are much appreciated!

Write a server component with your app-specific services, such as creating a post, retrieving all posts, etc. JSON is a simple and good choice.

Use DefaultHttpClient or AndroidHttpClient for communicating with your server via HTTP:

• http://developer.android.com/reference/org/apache/http/impl/client/DefaultHttpClient.html
• http://developer.android.com/reference/android/net/http/AndroidHttpClient.html
• http://developer.android.com/reference/android/net/package-summary.html

Use the org.json package to create requests and parse responses:

• http://developer.android.com/reference/org/json/package-summary.html

These packages and classes are basically available on all Android devices, and they are fairly easy to use.

• DefaultHttpClient or AndroidHttpClient for communication
• Android JSON library or for large data Jackson Streaming API
• SQLiteDatabase
• C2DM to push messages or Deacon project for custom server

Everything is built into Android SDK except Jackson and Deacon