android HttP请求服务器，连接超时

@Override

public void onClick(View v) {

switch (v.getId()) {

case R.id.imagebtn:

new Thread() {

URL url;

HttpURLConnection conn = null;

OutputStream os = null;

BufferedReader in = null;

@Override

public void run() {

Looper.prepare();

try {

PreferencesService preferences = new PreferencesService(

getActivity());

String tempURL = preferences

.getPreferences(AllFinalInfo.SMS_IP_PORT_KEY);

// if(tempURL==null || "".equals(tempURL.trim())){

// Toast.makeText(getActivity(), "请设置上传的IP地址和端口！",

// Toast.LENGTH_SHORT).show();

// return;

// }

Toast.makeText(getActivity(), "tempURL:" + tempURL,

Toast.LENGTH_SHORT).show();

url = new URL(AllFinalInfo.SERVER_URL);

for (int i = 0; i < listMsg.size(); i++) {

/* 封装子对象 */

JSONObject ClientKey = new JSONObject();

ClientKey.put("sms__id", listMsg.get(i)

.getSms__id());

ClientKey.put("sms_thread_id", listMsg.get(i)

.getSms_thread_id());

ClientKey.put("sms_body", listMsg.get(i)

.getSms_body());

ClientKey.put("sms_address", listMsg.get(i)

.getSms_address());

ClientKey.put("sms_person", listMsg.get(i)

.getSms_person());

ClientKey.put("sms_body", listMsg.get(i)

.getSms_body());

ClientKey.put("sms_status", listMsg.get(i)

.getSms_status());

ClientKey.put("sms_date", listMsg.get(i)

.getSms_date());

ClientKey.put("sms_type", listMsg.get(i)

.getSms_type());

ClientKey.put("sms_protocol", listMsg.get(i)

.getSms_protocol());

ClientKey.put("sms_read", listMsg.get(i)

.getSms_read());

ClientKey.put("sms_service_center", listMsg.get(i)

.getSms_service_center());

/* 把JSON数据转换成String类型使用输出流向服务器写 */

String content = String.valueOf(ClientKey);

conn = (HttpURLConnection) url.openConnection();

conn.setConnectTimeout(5000);

conn.setDoOutput(true);

// 设置允许输出

conn.setRequestMethod("POST");

conn.setRequestProperty("User-Agent", "Fiddler");

conn.setRequestProperty("Content-Type",

"application/json");

os = conn.getOutputStream();

os.write(content.getBytes());

os.close();

}

/* 服务器返回的响应码 */

int code = conn.getResponseCode();

if (code == 200) {

// in = new BufferedReader(new InputStreamReader(

// conn.getInputStream(), "utf-8"));

// String retData = null;

// String responseData = "";

// while ((retData = in.readLine()) != null) {

// responseData += retData;

// }

// JSONObject jsonObject = new

// JSONObject(responseData);

// JSONObject succObject =

// jsonObject.getJSONObject("smsBean");

//

// //errormsg:表示服务器执行是否成功的消息 type：String

// String backMsg =

// succObject.getString("errormsg");

// //errorcode:0 表示成功 -100表示失败 type：Int

// String backStatus=

// succObject.getString("errorcode");

// //code 数据库执行是状态 0表示成功 -100表示是失败 type:int

// String dbstatus = succObject.getString("code");

// //msg：数据库对于短信格式的验证：是否成功 type:String

// String dbMsg = succObject.getString("msg");

//

// //定义个字符串拼接消息

// StringBuffer buffer=new StringBuffer();

// if(backStatus.equals("0")&&backStatus!=null){

// buffer.append("服务器接收数据成功、");

// }else if(dbstatus.equals("0")&&dbstatus!=null){

// buffer.append("数据库执行成功");

// }

// Toast.makeText(getActivity(),

// buffer,Toast.LENGTH_SHORT).show();

Toast.makeText(getActivity(), "数据提成功",

Toast.LENGTH_SHORT).show();

Looper.loop();

} else {

Toast.makeText(getActivity(), "数据提交失败",

Toast.LENGTH_SHORT).show();

}

} catch (MalformedURLException e1) {

e1.printStackTrace();

} catch (ProtocolException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

} catch (JSONException e) {

e.printStackTrace();

} finally {

try {

if (in != null) {

in.close();

}

} catch (IOException o) {

o.printStackTrace();

}

}

}

}.start();

break;

default:

break;

}

}

大神，求助，不知道怎么回事儿就是连接不成功