android app访问内部网,android App中的网络访问

public String executeHttpGet(){

BufferedReader in = null;

String result = "empty";

String weather = "http://m.weather.com.cn/data/101280601.html";

try{

DefaultHttpClient client = new DefaultHttpClient();

HttpGet request = new HttpGet();

request.setURI(new URI(weather)); // url max length = 2048, need to do POST if u wanna long request

HttpResponse response = client.execute(request);

in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));

StringBuffer sb = new StringBuffer();

String line = "";

String NL = System.getProperty("line.separator");

while((line=in.readLine()) != null){

sb.append(line + NL);

}

result = sb.toString();

// Log.d(DEBUG_TAG, result);

}catch(Exception e){

e.printStackTrace();

}finally{

if(in != null){

try{

in.close();

}catch(Exception e){

e.printStackTrace();

}

}

}

return result;

}

2, 在AsyncTask的doInBackground里面调用这个函数：