(Android practice system II) Android interactive network transmission solution selection and implementation

Preface:

As described above, the implementation of login and account registration based on the dialog box is not detailed about the interaction between Android terminals and Internet services,

In the following section, I will describe the selection and analysis process of the scheme for selecting Android transmission, and define and implement the login and registration interfaces.

1 androidTransmission scheme analysis and selection

When talking about the android transmission scheme, what we generally think of is
Socket transmission, http-based web Services, and direct http post and get methods.

Next 【Network implementation conditions],【Scope of use],【Transmission advantages and disadvantages],[Data Transmission Format ],[Integrated development cost] and [Application complexity]Analysis of the Three transmission modes as the selection criteria.

The following is my analysis of these three transmission modes.

	SocketTransmission	WebService	Post, getHow to obtain data
Network implementation conditions	Port: Specific Port Protocol: TCP, UDP (Currently, the non-80 port support for wireless networks is low. Currently, only wap and http protocols are supported)	Port 80 The Protocol is http	Port 80 The Protocol is http
Scope of use	Transmission with large data volume, simple format, and high real-time requirements	Standard Web service interfaces, fixed Interfaces	Http format, Fixed Interface
Advantages and disadvantages of transmission	Fast and small data volume	Average speed, large data volume	Moderate speed, moderate data volume
Transmission Format	Custom Data Format	SOAP	Json
Development Requirements	Client and server: Data splicing, parsing, and complete data verification High Technical Requirements for developers	Client: Use third-party web service components to splice parameters and parse feedback data. The process is complex. Server: Create a web Service Technical requirements of developers: General	Client: Directly call the json package of android to parse json data. Simple process Server: Generate the httpHandler-based ashx file Interface Technical requirements of developers: low
Overall Cost	High	Average	Low

Based on the above analysis: select the transmission mode of json + httphandler

2Login and registration Interfaces

2.1Login interface implementation

Interface Definition:

Http: // 192.168.1.1/gointel/UserHandler. ashx? Action = login & Account = xuwenbing & PassWord = xuwenbing

Json format:

{ActionResult: false, Reason: "" account and password are inconsistent ""}

Source code:

 

View Code

/* User Login
* The server checks whether the user's account and password are consistent and returns results
**/
Public static Boolean Login (String Account, String PassWord)
{
// Step One gets the matching information of the current account and password from the server interface
Boolean actionResult = false;
String httpUrl = "http: // 221.181.127.43/gointel/UserHandler. ashx? Action = login & Account = "+ Account +" & PassWord = "+ PassWord;
// HttpGet connection object
HttpGet httpRequest = new HttpGet (httpUrl );

Try
{
// Obtain the HttpClinet object
HttpClient httpclient = new DefaultHttpClient ();

// Request HttpClient to obtain HttpResponse
HttpResponse httpResponse=httpclient.exe cute (httpRequest );

// The request is successful.
If (httpResponse. getStatusLine (). getStatusCode () = HttpStatus. SC _ OK)
{
// Obtain the returned string
String strResult = EntityUtils. toString (httpResponse. getEntity ());

JSONObject jsonObject = new JSONObject (strResult );
// Obtain the returned value and determine whether it is correct
ActionResult = jsonObject. getBoolean ("ActionResult ");
}
}
Catch (Exception e)
{
Return false;

}
Return actionResult;
}

 

2.2Registration interface implementation

 Interface Definition:

Http: // 192.168.1.1/gointel/UserHandler. ashx? Action = register & Account = xuwenbing & PassWord = xxuwenbin & NiceName = ninilan;

Json format:

{ActionResult: false, Reason: "" the user name already exists ""}

Source code:

View Code

Public static Boolean Register (String account, String passWord,
String niceName ){

Boolean actionResult = false;
String httpUrl = "http: // 221.181.127.43/gointel/UserHandler. ashx? Action = register & Account = "+ account +" & PassWord = "+ passWord +" & NiceName = "+ niceName;
// HttpGet connection object
HttpGet httpRequest = new HttpGet (httpUrl );

Try
{
// Obtain the HttpClinet object
HttpClient httpclient = new DefaultHttpClient ();

// Request HttpClient to obtain HttpResponse
HttpResponse httpResponse=httpclient.exe cute (httpRequest );

// The request is successful.
If (httpResponse. getStatusLine (). getStatusCode () = HttpStatus. SC _ OK)
{
// Obtain the returned string
String strResult = EntityUtils. toString (httpResponse. getEntity ());

JSONObject jsonObject = new JSONObject (strResult );

// Obtain the returned value and determine whether it is correct
ActionResult = jsonObject. getBoolean ("ActionResult ");
}
}
Catch (Exception e)
{
Return false;

}
Return actionResult;
}