serialization

问题 I'm trying unsuccessfully to create custom DateTime converter. The problem: I have many objects to serialize, some of the containing property of DateTime with DateTime.MinValue in it. I want to serialize it as null. But all the solution that I foud asking to decorate the proper inside the object (I can't do it) Other solution that I found below, is to create converter, As far as I can understand, this convertor works only DateTime object returned explicitly and not inside other object. Please

问题 Getting this error : echo $addressStr; $address = unserialize($addressStr); Echo returns 2:{i:0;s:18:"address:1,NN15 6TU";i:1;s:18:"address:8,NN15 6TU";} Error returns Notice: unserialize() [function.unserialize]: Error at offset 0 of 64 bytes in C:\wamp\www\guild_service\server\map_view.php on line 115 回答1: Your string is indeed something missing. I think it may need 'a:' in the front 来源： https://stackoverflow.com/questions/7336311/unserialize-error-at-offset-0-of-64-bytes

问题 When I try to deserialize binary data I get this: exception: boost::archive::archive_exception at memory location write: std::ofstream ofs(savePath); boost::archive::binary_oarchive out_arch(ofs); out_arch << mData; ofs.close(); read: std::ifstream ifs(loadPath); boost::archive::binary_iarchive in_arch(ifs); in_arch >> _mData; When i use text_iarchive \text_oarchive work fine. Serialized data structure mData is ColorMatrix<std::map<int, float>> mData; #include <algorithm> #include <memory>

问题 I'm trying to program some AI for a game of checkers. My program is saying there are 0 moves for the white player, even though I know there are. The GetValidMoves() function is tested, and works in other areas of the code. To try and isolate the program I saved out the problematic board-state then loaded it back up to see if I would get the same problem: using(Stream s = File.Open("board.dat", FileMode.Create)) { var bf = new BinaryFormatter(); bf.Serialize(s, board); } Debug.WriteLine(board

问题 I'm trying to get the following json (see below) deserialized (using newtonsoft json serializer) and the problem is the variable named "2010-12" it is obviously dependent on the data returned - it represents a month and next month the value will change to "2010-01". Any ideas on how i could handle this with the following class? [JsonObject(MemberSerialization.OptIn)] public class Crimes { [JsonProperty()] public Month Month { get; set; } } Example JSON instance: { "commentary": null, "crimes"

问题 I'm trying to get the following json (see below) deserialized (using newtonsoft json serializer) and the problem is the variable named "2010-12" it is obviously dependent on the data returned - it represents a month and next month the value will change to "2010-01". Any ideas on how i could handle this with the following class? [JsonObject(MemberSerialization.OptIn)] public class Crimes { [JsonProperty()] public Month Month { get; set; } } Example JSON instance: { "commentary": null, "crimes"

问题 I am using jsonrpc4j and got stuck. I made a little example to show my problem: Abstract class: @JsonTypeInfo(use = JsonTypeInfo.Id.NAME) @JsonSubTypes(value = { @JsonSubTypes.Type(value = Walnut.class) }) public abstract class Nut { } Concrete subclass: public class Walnut extends Nut { } Interface for the service: public interface ServiceInterface { public Nut getNut(); public void setNut(Nut nut); } The service itself: public class Service implements ServiceInterface { public Nut getNut()

问题 I got a json Object that i want to deserialize to its .Net type without casting it. I think i read somewhere in the doc that you can pass an attribute into the json to tells to the deserializer the .Net object type that it can try to cast. I can't find the where i read this. I want to avoid use of var myNewObject = JsonConvert.DeserializeObject<MyClass>(json); To get something like this MyClass myNewObject = JsonConvert.DeserializeObject(json); I got my json object from an HttpRequest and

问题 I have used default HttpUrlConnection class to make api calls and GSON to convert Java Objects into json request and json response into equivalent Java object.I have created various models(pojo class) to convert the request/response to model objects.My doubt is that is it ideal to implement Serializable to all those models since GSON is serialization/deserialization library? public class Contact implements Serializable { private String name; private String email; public String getName() {

问题 I have a serialized column in Company model: class Company < ActiveRecord::Base serialize :names Ideally I want it to store different names like this in the database: --- short: bestbuy long: bestbuy ltd. Currently in my company#edit page, I have a text area for it: <%= f.text_area :names %> If I have that YAML in the database, it will be displayed in the browser as: {"short"=>"bestbuy", "long"=>"bestbuy ltd."} However when I submit it, in the database it became: --- ! '{"short"=>"bestbuy",