Question

我有一个网址列表，我在一个单独的帖子中从for loop调用。列表的大小可以超过1000.当我运行下面的代码。下载前30到40个URL的数据，但稍后应用程序卡住了。有时 java.net.unknownhostexception unable to resolve host发生了但在不同时间针对不同的URL。

  for (Company aComapny:companyList) {
        URL url = null;
        HttpURLConnection con=null;
        BufferedReader in=null;
        try {
            url = new URL(DataExtractionConstant.URL+aComapny.getCompanyCode());
            Log.i(Constant.TAG, "URL:"+url.toString());
            con = (HttpURLConnection) url.openConnection();
            con.setRequestMethod("GET");
            con.setRequestProperty("connection", "close");
            int responseCode = con.getResponseCode();
            if (responseCode == HttpURLConnection.HTTP_OK) {
               in = new BufferedReader(new InputStreamReader(
                        con.getInputStream()));
                String inputLine;
                while ((inputLine = in.readLine()) != null) {
                    if (inputLine.contains(DataExtractionConstant.EXTRACT_CURRENT_VALUE_START)) {
                        String test = inputLine.substring(inputLine.indexOf(DataExtractionConstant.EXTRACT_CURRENT_VALUE_START) + DataExtractionConstant.EXTRACT_CURRENT_VALUE_START.length(),
                                inputLine.indexOf(DataExtractionConstant.EXTRACT_CURRENT_VALUE_END));
                        Log.i(Constant.TAG, "Extracted value~~~~" + test);
                    }

                }
                in.close();
            } else {
                Log.i(Constant.TAG, "GET request not worked");
            }
        } catch (Exception e) {
            e.printStackTrace();
            Log.i(Constant.TAG, "Exception");
        }
        finally {
            Log.i(Constant.TAG, "Finally called");
            try {
                in.close();
            } catch (IOException e) {
                Log.i(Constant.TAG, "Finally IOException");
            }
            con.disconnect();

        }
    }

这是logcat消息。

    10-16 22:09:52.087 30292-30446/myPackage I/URL_DATA: URL:http://MYURL
10-16 22:09:52.089 983-2241/? D/BandwidthController: [LG DATA] No such appUid: 10162
10-16 22:09:52.089 983-2241/? D/DnsProxyListener: App 10162 tries DNS query. Accept family:0 protocol:0
10-16 22:09:52.196 983-2241/? D/BandwidthController: [LG DATA] No such appUid: 10162
10-16 22:09:52.196 983-2241/? D/DnsProxyListener: App 10162 tries DNS query. Accept family:0 protocol:0
10-16 22:09:53.041 1944-2686/? D/ConnectivityService: updateCapabilities cap:[ Transports: WIFI Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED&NOT_VPN LinkUpBandwidth>=1048576Kbps LinkDnBandwidth>=1048576Kbps SignalStrength: -70]
10-16 22:09:53.042 1944-2686/? D/ConnectivityService: notifyType CAP_CHANGED for NetworkAgentInfo [WIFI () - 139]
10-16 22:09:53.045 2749-3377/? I/NetworkController: onReceive: intent=Intent { act=android.net.wifi.RSSI_CHANGED flg=0x4000010 (has extras) }
10-16 22:09:53.045 2749-3377/? I/WifiSignalController: mWifiConnected = true, mWifiLevel = 2
10-16 22:09:53.045 2749-3377/? I/NetworkController: Change in state from: connected=true,enabled=true,level=2,inetCondition=1,iconGroup=IconGroup(Default Wi-Fi Icons),activityIn=true,activityOut=true,rssi=-66,,ssid="Ciff",ktGigaWiFi=false,attWifiCall=false
                                                        to: connected=true,enabled=true,level=2,inetCondition=1,iconGroup=IconGroup(Default Wi-Fi Icons),activityIn=true,activityOut=true,rssi=-70,,ssid="Ciff",ktGigaWiFi=false,attWifiCall=false
10-16 22:09:54.280 2749-2749/? I/NetworkController: Change in state from: connected=true,enabled=true,level=2,inetCondition=1,iconGroup=IconGroup(Default Wi-Fi Icons),activityIn=true,activityOut=true,rssi=-70,,ssid="Ciff",ktGigaWiFi=false,attWifiCall=false
                                                        to: connected=true,enabled=true,level=2,inetCondition=1,iconGroup=IconGroup(Default Wi-Fi Icons),activityIn=false,activityOut=false,rssi=-70,,ssid="Ciff",ktGigaWiFi=false,attWifiCall=false
10-16 22:09:56.291 2749-2749/? I/NetworkController: Change in state from: connected=true,enabled=true,level=2,inetCondition=1,iconGroup=IconGroup(Default Wi-Fi Icons),activityIn=false,activityOut=false,rssi=-70,,ssid="Ciff",ktGigaWiFi=false,attWifiCall=false
                                                        to: connected=true,enabled=true,level=2,inetCondition=1,iconGroup=IconGroup(Default Wi-Fi Icons),activityIn=true,activityOut=false,rssi=-70,,ssid="Ciff",ktGigaWiFi=false,attWifiCall=false
10-16 22:09:57.298 2749-2749/? I/NetworkController: Change in state from: connected=true,enabled=true,level=2,inetCondition=1,iconGroup=IconGroup(Default Wi-Fi Icons),activityIn=true,activityOut=false,rssi=-70,,ssid="Ciff",ktGigaWiFi=false,attWifiCall=false
                                                        to: connected=true,enabled=true,level=2,inetCondition=1,iconGroup=IconGroup(Default Wi-Fi Icons),activityIn=true,activityOut=true,rssi=-70,,ssid="Ciff",ktGigaWiFi=false,attWifiCall=false
10-16 22:09:59.306 2749-2749/? I/NetworkController: Change in state from: connected=true,enabled=true,level=2,inetCondition=1,iconGroup=IconGroup(Default Wi-Fi Icons),activityIn=true,activityOut=true,rssi=-70,,ssid="Ciff",ktGigaWiFi=false,attWifiCall=false
                                                        to: connected=true,enabled=true,level=2,inetCondition=1,iconGroup=IconGroup(Default Wi-Fi Icons),activityIn=false,activityOut=false,rssi=-70,,ssid="Ciff",ktGigaWiFi=false,attWifiCall=false
10-16 22:10:00.001 1944-2644/? D/PowerManagerServiceAO: acquireWakeLockInternal: lock=134641876, flags=0x40000001, tag="*alarm*", ws=WorkSource{1000}, historyTag=*alarm*:android.intent.action.TIME_TICK, uid=1000, pid=1944
10-16 22:10:00.071 1944-1944/? D/PowerManagerServiceAO: releaseWakeLockInternal: lock=134641876 [*alarm*], flags=0x0
10-16 22:10:00.078 2749-2749/? I/TimeTickManager: setTimeTickHandler, called onTimeChanged() nextTick: 59955

所以我的问题是在循环中点击多个URL的最佳方法是什么？

Android：在for循环中点击多个网址的最佳方式？

0 个答案: