deserialization

问题 I am using Jackson and would like to pretty-print JSON such that each element in arrays goes to each line, like: { "foo" : "bar", "blah" : [ 1, 2, 3 ] } Setting SerializationFeature.INDENT_OUTPUT true only inserts newline characters for object fields, not array elements, printing the object in this way instead: { "foo" : "bar", "blah" : [1, 2, 3] } Does anyone know how to achieve this? Thanks! 回答1: You could extend the DefaultPrettyPrinter and override the methods beforeArrayValues(…) and

问题 If I try to return FlightOfferSearch[] or FlightOrder objects from a handler method of my Spring Boot REST Controller, they don't seem to get serialized correctly like simpler POJOs I've worked with before where Jackson handled JSON serialization. My code (actual API calls mostly identical to the SDK github example): import com.amadeus.Amadeus; import com.amadeus.Params; import com.amadeus.exceptions.ResponseException; import com.amadeus.resources.FlightOfferSearch; import com.amadeus

问题 I have a PHP serialized string which I was unserializing using php-serialize or 'locutus/php/var/unserialize' in Node js. "a:2:{s:3:\"$or\";a:1:{i:0;a:1:{s:4:\"$and\";a:1:{i:0;a:1:{s:20:\"attributes.FIRSTNAME\";C:18:\"MongoDB\\BSON\\Regex\":49:{a:2:{s:7:\"pattern\";s:2:\"^a\";s:5:\"flags\";s:1:\"i\";}}}}}}s:4:\"$and\";a:1:{i:0;a:1:{s:3:\"$or\";a:2:{i:0;a:1:{s:8:\"batch_id\";a:1:{s:7:\"$exists\";b:1;}}i:1;a:1:{s:2:\"sc\";a:1:{s:3:\"$ne\";i:-2;}}}}}}" I am getting error when I try to

问题 I'm trying to use the System.Text.Json.JsonSerializer to deserialize the model partially, so one of the properties is read as string that contains the original JSON. public class SomeModel { public int Id { get; set; } public string Name { get; set; } public string Info { get; set; } } The example code var json = @"{ ""Id"": 1, ""Name"": ""Some Name"", ""Info"": { ""Additional"": ""Fields"", ""Are"": ""Inside"" } }"; var model = JsonSerializer.Deserialize<SomeModel>(json); should produce the

问题 I'm trying to use the System.Text.Json.JsonSerializer to deserialize the model partially, so one of the properties is read as string that contains the original JSON. public class SomeModel { public int Id { get; set; } public string Name { get; set; } public string Info { get; set; } } The example code var json = @"{ ""Id"": 1, ""Name"": ""Some Name"", ""Info"": { ""Additional"": ""Fields"", ""Are"": ""Inside"" } }"; var model = JsonSerializer.Deserialize<SomeModel>(json); should produce the

问题 I am trying to de-serialize date attribute in json of format "2018-05-27" using Gson. I want date to be in LocalDate format after de-serialization. For json input : { "id" : 1, "name" : "test", "startDate" : "2018-01-01", "endDate" : "2018-01-05", } I am getting error for startDate and endDate : java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING 回答1: The way we can do this is : private static final Gson gson = new GsonBuilder().registerTypeAdapter(LocalDate.class, new

问题 I have a Json file that is composed of nested serialized objects. When deserializing this file I get my nested object reconstructed as needed, doing the following: var SomeNestedObjects= JsonConvert.DeserializeObject<SomeNestedObjectsFormat>(File.ReadAllText(@"e:\file.json")); Now, everything works great because my system has a definition of all these nested object and the JsonConverter is therefore able to create and initialise the lot out of whatever is in that Json file. What I would like

问题 I wanted to analyze Telegram-Chats so I exported a chat in JSON format and wanted to deserialize it into my analyzing software. { "id": 397910, "type": "message", "date": "2018-02-21T10:27:59", "edited": "1970-01-01T01:00:00", "from": "Username", "from_id": 39033284, "text": "Some Text" } So I've used this simple code to read the JSON List<JSONObject> jsonObjects = JsonConvert.DeserializeObject<List<JSONObject>>(File.ReadAllText(openFileDialog.FileName)); public class JSONObject { public int

问题 I need to populate tables in ABAP from data received through an API. I'm using the following ABAP function to populate an existing ABAP table from json. The JSON is correct, and the Table contains corresponding tables within tables. /ui2/cl_json=>deserialize( EXPORTING json = lv_json CHANGING data = lt_abap ). Running this returns a blank lt_abap table. When changing the output to be a structure this works fine. But the problem is a need a TABLE, rather than a STRUCTURE for subsequent calls

问题 public class TestJacksonColor { public static void main(String [] args) throws IOException { ObjectMapper objectMapper = new ObjectMapper(); Color black = new Color(0, 0, 0); String json = objectMapper.writeValueAsString(black); Color backToObject = objectMapper.readValue(json, Color.class); } } The code attempts to take an java.awt.color class serialize it using jackson objectmapper. Take the resulting json string and deserialize it back to an java.awt.color class. However when doing the