android how to write a text file pc machine

android program how a text file is written from the android phone pc-pc and write android phone.
android mobile devices mainly to resolve communication problems with pc, such as my android program recorded some data through the program writes a text, how to upload this text via wifi to pc machine, then pc machine will return the results to android phone. No better solution, or implementation. Point of reference materials posted code.
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pc can build a web server machine, android operating bed after the text to the server,
server update files, android download the file to update the software on

tomcat server can use
landlord to try it!
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With wifi is the network ah, that which can be an ordinary C / S, B / S achieved
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that can be like a floor that did get on a PC a web server, and then connect your phone to use http connection, sending and receiving data
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See my book:
arbitrary files using Java Serialization to achieve network transmission

There are two experiments:
experiment: the server and client are on the PC
Experiment II: The server is on the PC, the client is the Android phone

two experimental code, I have passed the authentication.
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Oh, that's mean to use http traffic, but I asked to be fast time, the ability to do blanket
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With wifi is the network ah, that which can be an ordinary C / S, B / S to achieve? ? ? ?
I wrote a socket communication, on the cell phone does not work, so still looking for ways ah, pointing pointing it?
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can only use this method do?
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can only use this method do? There are several download, upload code or information to see
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baidu Soso lot of friends
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9 Floor added:
1. phones are connected to the server via WIFI and
2. entire architecture using C / S, rather than the B / S
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landlord fix the problem? Neighborhoods, 429201894@qq.com
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landlord, seeking demo, very grateful, ieywang@126.com
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Hello, how do you solve the problem, seeking demo ah, thank you ah, 2996719190 @ qq. com
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landlord you that the PC side of the executable file send me a chant, thanks to the landlord. 1123348897@qq.com
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landlord seeking code 2540968683@qq.com