解决方式：自定义okgo适配器，对number类型数据分别处理为整型、浮点、双精度等；


例子：public class DataTypeAdapter extends TypeAdapter<Object> {
    private final TypeAdapter<Object> delegate = new Gson().getAdapter(Object.class);
 
    @Override
    public Object read(JsonReader in) throws IOException {
        JsonToken token = in.peek();
        switch (token) {
            case BEGIN_ARRAY:
                List<Object> list = new ArrayList<>();
                in.beginArray();
                while (in.hasNext()) {
                    list.add(read(in));
                }
                in.endArray();
                return list;
 
            case BEGIN_OBJECT:
                Map<String, Object> map = new LinkedTreeMap<>();
                in.beginObject();
                while (in.hasNext()) {
                    map.put(in.nextName(), read(in));
                }
                in.endObject();
                return map;
 
            case STRING:
                return in.nextString();
 
            case NUMBER:
                /**
                 * 改写数字的处理逻辑，将数字值分为整型与浮点型。
                 */
                double dbNum = in.nextDouble();
 
                // 数字超过long的最大值，返回浮点类型
                if (dbNum > Long.MAX_VALUE) {
                    return dbNum;
                }
                // 判断数字是否为整数值
                long lngNum = (long) dbNum;
                if (dbNum == lngNum) {
                    try {
                        return (int) lngNum;
                    } catch (Exception e) {
                        return lngNum;
                    }
                } else {
                    return dbNum;
                }
 
            case BOOLEAN:
                return in.nextBoolean();
 
            case NULL:
                in.nextNull();
                return null;
 
            default:
                throw new IllegalStateException();
        }
    }
 
    @Override
    public void write(JsonWriter out, Object value) throws IOException {
        delegate.write(out, value);
    }
}