我有一个已使用一年的套接字应用程序。一个用户数据似乎超出范围。用户不断包含-21,-103无效值:不在RangeError范围内。
错误字符串: RangeError(长度):无效值:不在范围0..576460752303423487中,包括:-103
如何处理包含在内的-21,-103无效值:Dart中不在RangeError范围内?
try {
String _reply = “”;
socket = await Socket.connect('192.168.1.10’, 8080);
socket.write('Server__Query__Part\r\n');
socket.handleError((data) {
print(data);
}
await for (var data in socket) {
_reply = new String.fromCharCodes(data).trim();
socket.close();
socket.destroy();
}
}
} catch (error, StackTrace trace) {
print(error);
}
StackTrace当前:
-- Aqueduct CLI Version: 3.1.0+1
-- Aqueduct project version: 3.1.0+1
-- Preparing...
-- Starting application 'ntmsapi/ntmsapi'
Channel: NtmsapiChannel
Config: /home/capital/.urcs/ntms/ntmsapi/config.yaml
Port: 8888
[INFO] aqueduct: Server aqueduct/1 started.
[INFO] aqueduct: Server aqueduct/2 started.
=====================================================================
RangeError (length): Invalid value: Not in range 0..576460752303423487, inclusive: -197
=====================================================================
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#0 new _List (dart:core/runtime/libarray.dart)
#1 List._allocateData (dart:core/runtime/libgrowable_array.dart:240:16)
#2 List._shrink (dart:core/runtime/libgrowable_array.dart:263:19)
#3 List.length= (dart:core/runtime/libgrowable_array.dart:132:7)
#4 pkcs7Unpad (package:tripledes/src/utils.dart:68:8)
#5 BaseEngine.process (package:tripledes/src/engine.dart:77:7)
#6 BlockCipher.decodeB64 (package:tripledes/tripledes.dart:37:20)
#7 getPrivate (package:ntmsapi/util/ntmsGetPrivate.dart:8:29)
<asynchronous suspension>
#8 NtmsApiController.handle (package:ntmsapi/controller/ntmsapi_controller.dart:36:31)
<asynchronous suspension>
#9 Controller.receive (package:aqueduct/src/http/controller.dart:174:30)
<asynchronous suspension>
#10 Controller.receive (package:aqueduct/src/http/controller.dart:206:28)
<asynchronous suspension>
#11 Router.receive (package:aqueduct/src/http/router.dart:139:18)
<asynchronous suspension>
#12 _RootZone.runUnaryGuarded (dart:async/zone.dart:1314:10)
#13 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:336:11)
#14 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:263:7)
#15 _ForwardingStreamSubscription._add (dart:async/stream_pipe.dart:132:11)
#16 _MapStream._handleData (dart:async/stream_pipe.dart:232:10)
#17 _ForwardingStreamSubscription._handleData (dart:async/stream_pipe.dart:164:13)
#18 _RootZone.runUnaryGuarded (dart:async/zone.dart:1314:10)
#19 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:336:11)
#20 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:263:7)
#21 _SyncStreamController._sendData (dart:async/stream_controller.dart:763:19)
#22 _StreamController._add (dart:async/stream_controller.dart:639:7)
#23 _StreamController.add (dart:async/stream_controller.dart:585:5)
#24 _HttpServer._handleRequest (dart:_http/http_impl.dart:2660:19)
#25 new _HttpConnection.<anonymous closure> (dart:_http/http_impl.dart:2418:19)
#26 _RootZone.runUnaryGuarded (dart:async/zone.dart:1314:10)
#27 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:336:11)
#28 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:263:7)
#29 _SyncStreamController._sendData (dart:async/stream_controller.dart:763:19)
#30 _StreamController._add (dart:async/stream_controller.dart:639:7)
#31 _StreamController.add (dart:async/stream_controller.dart:585:5)
#32 _HttpParser._headersEnd (dart:_http/http_parser.dart:372:19)
#33 _HttpParser._doParse (dart:_http/http_parser.dart:701:15)
#34 _HttpParser._parse (dart:_http/http_parser.dart:318:7)
#35 _HttpParser._onData (dart:_http/http_parser.dart:810:5)
#36 _RootZone.runUnaryGuarded (dart:async/zone.dart:1314:10)
#37 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:336:11)
#38 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:263:7)
#39 _SyncStreamController._sendData (dart:async/stream_controller.dart:763:19)
#40 _StreamController._add (dart:async/stream_controller.dart:639:7)
#41 _StreamController.add (dart:async/stream_controller.dart:585:5)
#42 _Socket._onData (dart:io/runtime/binsocket_patch.dart:1721:41)
#43 _RootZone.runUnaryGuarded (dart:async/zone.dart:1314:10)
#44 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:336:11)
#45 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:263:7)
#46 _SyncStreamController._sendData (dart:async/stream_controller.dart:763:19)
#47 _StreamController._add (dart:async/stream_controller.dart:639:7)
#48 _StreamController.add (dart:async/stream_controller.dart:585:5)
#49 new _RawSocket.<anonymous closure> (dart:io/runtime/binsocket_patch.dart:1283:33)
#50 _NativeSocket.issueReadEvent.issue (dart:io/runtime/binsocket_patch.dart:826:14)
#51 _microtaskLoop (dart:async/schedule_microtask.dart:41:21)
#52 _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)
#53 _runPendingImmediateCallback (dart:isolate/runtime/libisolate_patch.dart:115:13)
#54 _RawReceivePortImpl._handleMessage (dart:isolate/runtime/libisolate_patch.dart:172:5)
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