Question

我已经编写了我的CustomJsonSerializer，我希望它能自动序列化所有使用@JsonProperty注释的字段，所以我只会将那些没有注释的字段序列化，需要特别注意＆＃34;

例如：我有Pojo

class Player {

@JsonProperty(user_id)
private long userId;

private byte[] history;
}

我的自定义序列化程序：

public class JsonPlayerSerializer extends JsonSerializer<Player> {

    @Override
    public void serialize(Player player, JsonGenerator gen,    
         SerializerProvider provider) throws IOException, JsonProcessingException {

          // I would like to add some code here that automatically would add all annotated fields.

          gen.writeObjectField("history_moves", new JsonObject().put("$binary", myMoves));
    }
}

Answer 1

public class JsonPlayerSerializer extends JsonSerializer<Player> {

    @Override
    public void serialize(Player player, JsonGenerator gen,    
         SerializerProvider provider) throws IOException, JsonProcessingException {


          super.serialize(player,gen,provider);   
          gen.writeObjectField("history_moves", new JsonObject().put("$binary", myMoves));
    }
}

在自定义序列化程序中调用父序列化程序方法，以便继续序列化。

 class Player {

         @JsonProperty(user_id)
         private long userId;

         @JsonSerialize(using = JsonPlayerSerializer .class)
         private byte[] history;
        }

或如上所述 Jackson JSON custom serialization for certain fields

public class JsonPlayerSerializer extends JsonSerializer<Player> { @Override public void serialize(Player player, JsonGenerator gen, SerializerProvider provider) throws IOException, JsonProcessingException { gen.writeObjectField("history_moves", new JsonObject().put("$binary", myMoves)); } }

仅将序列化程序用于历史记录字段

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如何自动序列化JsonSerializer类中的所有带注释的字段

1 个答案: