使用fastjson将pojo类转换成字符串--(如何保留值为null的字段)

JSONObject jsonObject = (JSONObject) JSON.toJSON(bean);
		String resutStr = JSON.toJSONString(bean,SerializerFeature.WriteMapNullValue);
		System.out.println(resutStr);

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转载自blog.csdn.net/qq_37306041/article/details/81872259