serialization

问题 I am trying to implement Django-Rest framework for a voting application with content_type objects. I tried using the rest-framework-generic-relations for serializers.py. It seems to me that the error might be within serializer.py / views.py, but I am new to this framework and would appreciate your help! views.py: class vote_detail(generics.RetrieveUpdateDestroyAPIView): queryset = VotedItem.objects.all() serializer_class = VoteSerializer(queryset, many=True) serializers.py: from rest

问题 I'm using Spring MVC and Jackson for JSON de/serialization. But im facing a problem with serializing a date. By default Jackson serialize a date as an epoch. But i want to serialize it as a ISO date (i.e. 06-10-2011 11:00:00). The code below is my spring config, but it does not work. It's still returning an epoch date. So my question is, how can I serialize to a non-epoch date? <!-- JSON --> <bean id="jsonConverter" class="org.springframework.http.converter.json

问题 Is it possible to searialize/desearialize anonymous class in Java? Example: ByteArrayOutputStream operationByteArrayStream = new ByteArrayOutputStream(); ObjectOutputStream oos = new ObjectOutputStream(operationByteArrayStream); oos.writeObject(new Task() { public void execute() { System.out.println("Do some custom task")); } }); My problem is that I want to do some custom admin tasks so that i don't need a release for every task. So what i'm trying to do - is via Groovy scripting engine post

问题 Is there anyway to serialize a certain part of your MPI code ? For example when printing the information out to the screen. Something like below: MPI_SERIALIZE(); cerr << "THIS WILL BE PRINTED "; cerr << "IN ORDER" << endl; MPI_END_SERILIZE(); If there are two MPI threads, there will be no case : THIS WILL BE PRINTED THIS WILL BE PRINTED IN ORDER IN ORDER Thanks 回答1: The way I do this in demonstration programs (and note - you would only do this in little demo programs because of the high

问题 To test the Serialization exception in spark I wrote a task in 2 ways. First way: package examples import org.apache.spark.SparkConf import org.apache.spark.SparkContext object dd { def main(args: Array[String]):Unit = { val sparkConf = new SparkConf val sc = new SparkContext(sparkConf) val data = List(1,2,3,4,5) val rdd = sc.makeRDD(data) val result = rdd.map(elem => { funcs.func_1(elem) }) println(result.count()) } } object funcs{ def func_1(i:Int): Int = { i + 1 } } This way spark works

问题 I'm working on RESTful application - I'm using Java on the server side and Backbone for the Front End. The 2 will communicate via JSON. My App has quite a few forms and I would like to: Serialize the form inputs to JSON Send the JSON to the server My questions: What is the best way to serialize the form inputs to JSON? Perhaps a Backbone only solution? Once the form inputs serialized to JavaScript Objects - what is the best way to send JSON to the server? My code so far: Javascript and

问题 I'm attempting to use Json.NET with the System.Net.Http.HttpClient to send an object with an enum property, however the enum is always serialized as an integer value rather than the string equivalent. I've tried following the instructions here: http://james.newtonking.com/archive/2013/05/08/json-net-5-0-release-5-defaultsettings-and-extension-data By both adding an instance of StringEnumConverter to the JsonSerializerSettings and also tried to decorate the enum property with [JsonProperty

问题 So I am making a basic chess app to play around with some various elements of android programming and so far I am learning a lot, but this time I am lost. When the orientation of the emulator changes the activity gets reset. Based on my research the same thing will happen anytime the application is paused/interrupted, ie. keyboard change, phone call, hitting the home key etc. Obviously, it is not viable to have a chess game constantly reset, so once again I find myself needing to learn how to

问题 I've seen quite a few posts on changes in .NET 3.5 SP1, but stumbled into one that I've yet to see documentation for yesterday. I had code working just fine on my machine, from VS, msbuild command line, everything, but it failed on the build server (running .NET 3.5 RTM). [XmlRoot("foo")] public class Foo { static void Main() { XmlSerializer serializer = new XmlSerializer(typeof(Foo)); string xml = @"<foo name='ack' />"; using (StringReader sr = new StringReader(xml)) { Foo foo = serializer

问题 I've seen quite a few posts on changes in .NET 3.5 SP1, but stumbled into one that I've yet to see documentation for yesterday. I had code working just fine on my machine, from VS, msbuild command line, everything, but it failed on the build server (running .NET 3.5 RTM). [XmlRoot("foo")] public class Foo { static void Main() { XmlSerializer serializer = new XmlSerializer(typeof(Foo)); string xml = @"<foo name='ack' />"; using (StringReader sr = new StringReader(xml)) { Foo foo = serializer