The problem is the JSON – this cannot, by default, be deserialized into a Collection because it’s not actually a JSON Array – that would look like this: [ { “name”: “Test order1”, “detail”: “ahk ks” }, { “name”: “Test order2”, “detail”: “Fisteku” } ] Since you’re not controlling the exact process of deserialization (RestEasy … Read more
You can mark it as @JsonIgnore. With 1.9, you can add @JsonIgnore for getter, @JsonProperty for setter, to make it deserialize but not serialize.
Since Jackson v2.0, you can use @JsonFormat annotation directly on Object members; @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = “yyyy-MM-dd HH:mm a z”) private Date date;
As of Jackson 1.6, you can use: JsonNode node = mapper.valueToTree(map); or JsonNode node = mapper.convertValue(object, JsonNode.class); Source: is there a way to serialize pojo’s directly to treemodel?
To indent any old JSON, just bind it as Object, like: Object json = mapper.readValue(input, Object.class); and then write it out with indentation: String indented = mapper.writerWithDefaultPrettyPrinter().writeValueAsString(json); this avoids your having to define actual POJO to map data to. Or you can use JsonNode (JSON Tree) as well.
You can configure the ObjectMapper to convert camel case to names with an underscore: objectMapper.setPropertyNamingStrategy(PropertyNamingStrategy.SNAKE_CASE); Or annotate a specific model class with this annotation: @JsonNaming(PropertyNamingStrategy.SnakeCaseStrategy.class) Before Jackson 2.7, the constant was named: PropertyNamingStrategy.CAMEL_CASE_TO_LOWER_CASE_WITH_UNDERSCORES
In Jackson 2.4, you can convert as follows: MyClass newJsonNode = jsonObjectMapper.treeToValue(someJsonNode, MyClass.class); where jsonObjectMapper is a Jackson ObjectMapper. In older versions of Jackson, it would be MyClass newJsonNode = jsonObjectMapper.readValue(someJsonNode, MyClass.class);
Just tested and this works: public class Coordinates { byte red; @JsonProperty(“r”) public byte getR() { return red; } @JsonProperty(“red”) public void setRed(byte red) { this.red = red; } } The idea is that method names should be different, so jackson parses it as different fields, not as one field. Here is test code: Coordinates … Read more
Have you tried using @JsonProperty? @Entity public class City { @id Long id; String name; @JsonProperty(“label”) public String getName() { return name; } public void setName(String name){ this.name = name; } @JsonProperty(“value”) public Long getId() { return id; } public void setId(Long id){ this.id = id; } }
I was never able to get this to work simple using annotations. To get it to work, I created a ContextResolver for ObjectMapper, then I added the JSR310Module (update: now it is JavaTimeModule instead), along with one more caveat, which was the need to set write-date-as-timestamp to false. See more at the documentation for the … Read more