サーバーの更新をチェックするため、ServiceとAsyncTaskが含まれています。データを取得した場合と取得しなかった場合は、再実行する必要があります。したがって、私のAsyncTask実装は次のとおりです。
private class DklabExecute extends AsyncTask<Void, String, Void> {
int count;
Calendar calendar = Calendar.getInstance();
java.util.Date now = calendar.getTime();
java.sql.Timestamp currentTimestamp = new java.sql.Timestamp(now.getTime());
String url = "http://192.168.0.250:81/?identifier=nspid_"+md5(LoginActivity.passUserId)+
",nspc&ncrnd="+Long.toString(currentTimestamp.getTime());
HttpGet rplPost = new HttpGet(url);
protected Void doInBackground(Void... args)
{
Log.i("service count", Integer.toString(count));
count ++;
Log.i("md5 func", md5(LoginActivity.passUserId));
String testData = "http://192.168.0.250/app_dev.php/api/comet/testOrder/";
JSONParser parser = new JSONParser();
DefaultHttpClient testClient = new DefaultHttpClient();
DefaultHttpClient rplClient = new DefaultHttpClient();
try {
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("", ""));
HttpGet httpTest = new HttpGet(testData);
httpTest.setHeader("Cookie", CookieStorage.getInstance().getArrayList().get(0).toString());
rplPost.setHeader("Cookie", CookieStorage.getInstance().getArrayList().get(0).toString());
try {
httpResponse = rplClient.execute(rplPost);
}
catch (ClientProtocolException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
Header[] head = httpResponse.getAllHeaders();
Log.i("http Response",httpResponse.toString());
for (Header one:head)
{
Log.i("headers",one.toString());
}
Log.i("response code", Integer.toString(httpResponse.getStatusLine().getStatusCode()));
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null)
{
sb.append(line);// + "n");
}
try
{
is.close();
}
catch (IOException e)
{
e.printStackTrace();
}
json = sb.toString();
Log.i("rpl response",json);
if (new JSONArray(json) != null)
jArr = new JSONArray(json);
else
this.cancel(true);
JSONObject toObj = jArr.getJSONObject(0);
JSONObject data = toObj.getJSONObject(KEY_DATA);
if (data.has(KEY_ORDER))
{
for (Order a : ServiceMessages.orderExport)
{
Log.i("service before list", a.toString());
}
Log.i(" ", " ");
for (Order a : DashboardActivityAlt.forPrint)
{
Log.i("before dashboard list", a.toString());
}
JSONObject jsonOrder = data.getJSONObject(KEY_ORDER);
Gson gson = new Gson();
Order orderObj= gson.fromJson(jsonOrder.toString(), Order.class);
try
{
for (ListIterator<Order> itr = orderExport.listIterator(); itr.hasNext();)
{
Order a = itr.next();
Log.i("order count", a.toString());
if(orderObj.getOrderid()==a.getOrderid())
{
Log.i("Service","order was changed");
a = orderObj;
someMethod("Your order "+ orderObj.getTitle() + " was changed");
}
else
{
Log.i("Service","order"+ orderObj.getTitle()+" was added");
// DashboardActivityAlt.forPrint.add(0, orderObj);
ServiceMessages.orderExport.add(0,orderObj);
Log.i("status",Integer.toString(orderObj.getProcess_status().getProccessStatusId()));
someMethod("Your order "+ orderObj.getTitle() + " was added");
}
}
}
catch (Exception e)
{
e.printStackTrace();
}
for (Order a : ServiceMessages.orderExport)
{
Log.i("service after list", a.toString());
}
Log.i(" ", " ");
for (Order a : DashboardActivityAlt.forPrint)
{
Log.i("after dashboard list", a.toString());
}
// intentOrder.putParcelableArrayListExtra("ordersService", orderExport);
sendBroadcast(intentOrder);
Log.i("after parse order",orderObj.toString());
Log.i("orders after updating",DashboardActivityAlt.orders.toString() );
}
else if (data.has(KEY_MESSAGE))
{
JSONObject jsonMessage = data.getJSONObject(KEY_MESSAGE);
Gson gson = new Gson();
Log.i("messages before parse", jsonMessage.toString());
for (Order a: DashboardActivityAlt.forPrint)
{
Log.i("messages count", Integer.toString(a.getCusThread().getMessages().size()));
}
Log.i("disparse message",jsonMessage.toString());
Message message = gson.fromJson(jsonMessage.toString(),Message.class);
Log.i("incomming message",message.toString());
JSONObject jsonThread = jsonMessage.getJSONObject(KEY_THREAD);
Threads thread = gson.fromJson(jsonThread.toString(),Threads.class);
Log.i("incomming thread",thread.toString());
Order orderChanged = new Order();
String orderName = null;
for(Order as : DashboardActivityAlt.forPrint)
{
if (as.getOrderid() == thread.getTreadOrder().getOrderid())
{
orderName = as.getTitle();
orderChanged = as;
Log.i("messages count after", Integer.toString(as.getCusThread().getMessages().size()));
}
}
Log.i("orderchanged",orderChanged.toString());
someMethod("Your order "+ thread.getTreadOrder().getTitle() + " was changed. Message was added");
orderChanged.getCusThread().addMessage(message);
sendBroadcast(intentMessage);
Log.i("messages service", "before sleep");
Log.i("messages service", "after sleep");
}
else
{
this.cancel(true);
}
}
catch (IllegalStateException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
} catch (IOException e2) {
rplClient.getConnectionManager().shutdown();
testClient.getConnectionManager().shutdown();
someMethod("You've lost internet connection. You should try later.");
e2.printStackTrace();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
protected void onPostExecute(Void bitmap) {
this.cancel(true);
new DklabExecute().execute();
}
}
サーバーにデータを送信すると、rplサーバーを介してJSON形式で返されます。すべてが正常に機能しますが、問題は、サーバーからデータを取得すると、AsyncTaskがonPostExecute()メソッドで再実行され、注文リストの1回または2回のデータと同じように再実行されることです。AsyncTaskを再実行しない場合、リスニングはonStartCommand()メソッドでのみ発生し、永続的には発生しません。これを最善の方法で実装するにはどうすればよいか教えてください...