java - 与 jackson 一起将对象转储到字符串

Question

我正在使用 Gson 在我的应用程序中生成调试输出

Gson gson = new GsonBuilder().setPrettyPrinting().serializeNulls().create();
gson.toJson(myObject);

但 Gson 在尝试序列化数据结构时确实会提示循环引用错误。这可以用 Jackson 库来完成吗？

UPDGson 2.3.1:2014 年 11 月 20 日发布

Added support to serialize objects with self-referential fields. The self-referential field is set to null in JSON. Previous version of Gson threw a StackOverflowException on encountering any self-referential fields.
    The most visible impact of this is that Gson can now serialize Throwable (Exception and Error)

Answer 1

使用 Jackson 进行序列化:

public String serialize(Object obj, boolean pretty) {
    ObjectMapper mapper = new ObjectMapper();

    mapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);

    if (pretty) {
        return mapper.writerWithDefaultPrettyPrinter().writeValueAsString(obj);
    }

    return mapper.writeValueAsString(obj);
}