数组的gson - long值变为浮点值

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.TypeAdapter;
import com.google.gson.stream.JsonReader;
import com.google.gson.stream.JsonToken;
import com.google.gson.stream.JsonWriter;

import java.io.IOException;

public class LongTypeAdapter extends TypeAdapter<Long> {
    @Override
    public void write(JsonWriter out, Long value) throws IOException {
        if (value == null) {
            out.nullValue();
        } else {
            out.value(String.valueOf(value));
        }
    }

    @Override
    public Long read(JsonReader in) throws IOException {
        if (in.peek() == JsonToken.NULL) {
            in.nextNull();
            return null;
        } else {
            String stringValue = in.nextString();
            try {
                return Long.parseLong(stringValue);
            } catch (NumberFormatException e) {
                return null;
            }
        }
    }
}

public class Main {
    public static void main(String[] args) {
        Gson gson = new GsonBuilder()
                .registerTypeAdapter(Long.class, new LongTypeAdapter())
                .create();

        // 示例数据
        long[] longArray = {1234567890123456789L, 9876543210987654321L};

        // 序列化为JSON字符串
        String json = gson.toJson(longArray);
        System.out.println("Serialized JSON: " + json);

        // 反序列化为long数组
        long[] deserializedArray = gson.fromJson(json, long[].class);
        System.out.println("Deserialized Array: " + Arrays.toString(deserializedArray));
    }
}