NanoHttpd 构建android 手机端的HttpServer

NanoHttpd是Github上的一个开源项目, 通过下载jar包，新建一个android project, 使用 extends NanoHTTPD 就可以实现一个apk 当WebServer。

示例为显示访问此server的Useragent 和将UA写入文件import fi.iki.elonen.NanoHTTPD;public  class UAsetHttpServer extends NanoHTTPD {    public UAsetHttpServer() throws IOException {        super(8080);    }    @Override    public Response serve(IHTTPSession session) {        System.out.println("UAsetHttpServer, method serve start-----");        String msg = "\n";        msg += "";        msg += "\n";        if(session.getUri().equals("/")){            String ua = session.getHeaders().get("user-agent");            System.out.println("UAsetHttpServer, session.getHeaders()-----"+ua);              try{                File file = new File("/data/local/tmp/useragent.txt");                FileOutputStream fs = new FileOutputStream(file);                OutputStreamWriter ow = new OutputStreamWriter(fs);                ow.write(ua);                ow.close();                System.out.println("UAsetHttpServer, save useragent to file successfully.");               }catch(Exception e){                System.out.println("UAsetHttpServer, save useragent to file error:"+e.getMessage());              }        }        return new NanoHTTPD.Response(msg);    }}

调用的地方：

public class AndroidBrowserUAActivity extends Activity {    private UAsetHttpServer server;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);    }    @Override    protected void onResume() {        super.onResume();        try {            server = new UAsetHttpServer();            server.start();        } catch (IOException e) {            e.printStackTrace();            server = null;        }    }    @Override    protected void onDestroy() {        super.onDestroy();        if (server != null) {            server.stop();        }    }}

当以上的Server起来之后，使用地址http://127.0.0.1:8080/就可以访问。

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