Android and server-side data interaction (based on SOAP protocol integration Android+webservice)

Http://www.cnblogs.com/zhangdongzi/archive/2011/04/19/2020688.html

In the previous section, we used the HTTP protocol to request data using HttpClient to the server-side action. Of course, invoking a server-side method gets more data than that. WebService can also provide us with the required data,

So what is WebService? , it is a remote calling standard based on SAOP protocol, which can integrate different operating system platforms, different languages and different technologies through webservice.

We need some libraries in our PC Java client, such as XFIRE,AXIS2,CXF and so on to support access to webservice, but these libraries are not suitable for our limited resources Android phone clients, have done Java The people of me know there's ksoap. This third-party class library can help us get server-side webservice calls, of course Ksoap has provided an Android-based version of the jar package, so let's start:

First download Ksoap package: Ksoap2-android-assembly-2.5.2-jar-with-dependencies.jar Pack

Then create a new Android project: and put the downloaded Ksoap package in the Lib directory of the Android project: right-->build path->configure build path--Select libraries,

The following is a seven-step procedure to invoke the WebService method:

First: Instantiate the Soapobject object, specify the namespace of the WebService (the namespace can be viewed from the relevant WSDL document), and invoke the method name. Such as:

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The second step: If the method has parameters, set the calling method parameter

Request.addproperty ("Parameter name", "parameter value");

Step three: Set the SOAP request information (the parameter portion is the SOAP protocol version number, which is the same as the version number in the WebService you want to call):

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Fourth Step: Register envelope,

(New MarshalBase64 ()). Register (envelope);

Fifth step: Build the Transport object and indicate the WSDL document URL:

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Sixth step: Call WebService (where the parameter is 1: namespace + method name, 2:envelope object):

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Seventh step: Parse the return data:

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This will be a success. So now we're going to test it, here's an address that offers WebService weather forecasts, and here I only offer a list of the cities to get:

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Then you can enter the address (WSDL) in the browser: serviceurl, you will see some methods to invoke:

We choose to obtain the main cities or provinces at home and abroad method: Getsupportprovice, and then call, you will find that the browser returned to us is an XML document:

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We can use the ListView to display:

Then I'll give you all the code:

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and help classes:

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The above is the query of all the core code of the weather forecast, the reader can be based on comments and this article to understand the implementation of the specific, I believe that soon to understand, the results of the operation are as follows:

To this end, the next section is mainly socket communication

Android and server-side data interaction (based on SOAP protocol integration Android+webservice)