请问json 模块无法单独引入吗?
java.lang.NoClassDefFoundError: org/nutz/el/El

fromJson 时报错 java.lang.NoClassDefFoundError: org/nutz/el/El

public <T> T getData(Class<T> c) {
		if (this.data == null) {
			T t = Json.fromJson(c, dataStr);
			data = t;
			return t;
		} else {
			return (T) data;
		}
	}