serialization

问题 I know that you can mark a scala object as @serializable , but I don't understand what to do with the object afterwards. Do I simply treat it as a Java Serializable object? I want to serialize the object into a stream of bytes. Can someone show me the code to transform a serialize object into either a byte array or a string? (the googles have not been helpful with this question) FOLLOWUP: Thanks. I now understand that I can use it like a Java Serializable object. Sometimes the obvious answer

问题 Suppose I have these two classes Book public class Book { [JsonProperty("author")] [---> annotation <---] public Person Author { get; } [JsonProperty("issueNo")] public int IssueNumber { get; } [JsonProperty("released")] public DateTime ReleaseDate { get; } // other properties } and Person public class Person { public long Id { get; } public string Name { get; } public string Country { get; } // other properties } I want to serialize Book class to JSON , but instead of property Author

问题 Suppose I have these two classes Book public class Book { [JsonProperty("author")] [---> annotation <---] public Person Author { get; } [JsonProperty("issueNo")] public int IssueNumber { get; } [JsonProperty("released")] public DateTime ReleaseDate { get; } // other properties } and Person public class Person { public long Id { get; } public string Name { get; } public string Country { get; } // other properties } I want to serialize Book class to JSON , but instead of property Author

问题 I need to serialize a vector of pointers to base class and derived class. Serialize function overloaded for both classes, so I did it succesfully like this:` CFile out; if (!out.Open(filename.c_str(), CFile::modeWrite | CFile::modeCreate)) return false; CArchive ar(&out, CArchive::store); for (auto it = container_.begin(); it != container_.end(); ++it) { (*it)->Serialize(ar); } ar.Close(); out.Close(); So the question is, how should I DEserialize it now? I have no ideas about calling correct

问题 I need to serialize a vector of pointers to base class and derived class. Serialize function overloaded for both classes, so I did it succesfully like this:` CFile out; if (!out.Open(filename.c_str(), CFile::modeWrite | CFile::modeCreate)) return false; CArchive ar(&out, CArchive::store); for (auto it = container_.begin(); it != container_.end(); ++it) { (*it)->Serialize(ar); } ar.Close(); out.Close(); So the question is, how should I DEserialize it now? I have no ideas about calling correct

问题 This is my JSON file. { "webroot": "wwwroot", "version": "1.0.0-*", "dependencies": { "EntityFramework.SqlServer": "7.0.0-beta5", "EntityFramework.Commands": "7.0.0-beta5", "Microsoft.AspNet.Mvc": "6.0.0-beta5", }, "exclude": [ "wwwroot", "node_modules", "bower_components" ], } I can read value of "webroot" as string and "exclude" as array using following snippet. string file = File.ReadAllText("project.json"); Product pro = JsonConvert.DeserializeObject<Product>(file); But I cannot read the

问题 I am trying to scrape web data using php and dom xpath. When I store the $node->nodeValue into my database or even if i try to echo it, all the tags like <p> and <br> are missing. So I am getting all the paras concatenated. How to solve this problem 回答1: If you have a node, and you need all its contents as they are, you can use this function: function innerHTML(DOMNode $node) { $doc = new DOMDocument(); foreach ($node->childNodes as $child) { $doc->appendChild($doc->importNode($child, true));

问题 I am trying to scrape web data using php and dom xpath. When I store the $node->nodeValue into my database or even if i try to echo it, all the tags like <p> and <br> are missing. So I am getting all the paras concatenated. How to solve this problem 回答1: If you have a node, and you need all its contents as they are, you can use this function: function innerHTML(DOMNode $node) { $doc = new DOMDocument(); foreach ($node->childNodes as $child) { $doc->appendChild($doc->importNode($child, true));

问题 I have a C# Application. I have a class that is generated from an xsd using xsd.exe. The class looks as follows public class Transaction { public bool amountSpecified {get; set;} public double amount {get; set;} } The following code shows an attempt at serialization var transObj = new Transaction(); transObj.amount = 5.10; var output =JsonConvert.Serialize(transObj); The output string doesn't contain the amount field at all. It contains amountSpecified false which I don't want in my

问题 I want to ask about serialize/deserialize object with binary formatter. well i'm trying to deserialize object in FileStream that contain many objects that has been serialized one by one. The size of an object is too big to be saved in process memmory that's why i don't pack all of objects in one such as: List because they are too big in process memory So i serialize as much as needed in many times. with this way it won't take many process memmory because i just process one object alternately