我无法从服务器检索数据。我不确定代码哪里出了问题。当我运行应用程序时，来自服务器的数据不会显示在模拟器上。代码如下
private void postData1(){
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(
"http://www.xxxxx.co.uk/NottTest/post.php");
JSONObject json = new JSONObject();
try {
// JSON data:
try {
json.put("name", "Fahmi Rahman");
} catch (JSONException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
json.put("position", "sysdev");
JSONArray postjson = new JSONArray();
postjson.put(json);
// Post the data:
httppost.setHeader("json", json.toString());
httppost.getParams().setParameter("jsonpost", postjson);
// Execute HTTP Post Request
System.out.print(json);
HttpResponse response = httpclient.execute(httppost);
tv.setText("Hiii");
// for JSON:
if (response != null)
{
Log.i("Json","respose");
System.out.print("loooooooooool");
InputStream is = response.getEntity().getContent();
BufferedReader reader = new BufferedReader(
new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line = null;
try {
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
text = sb.toString();
}
else{
tv.setText("no respose");
Log.i("Noting","happended");
}
//tv.setText(text);
} catch (ClientProtocolException e) {
Log.i("Error","Prtocol");
} catch (IOException e) {
Log.i("Error","IO");
} catch (JSONException e) {
Log.i("Error","JOSON");
}
}