{
    "saveType": "save|publish",
    "surveyId": "h8j934hjg54h9j549049hj354j", //没有可以留空
    "startDate": "2018-03-28",
    "endDate": "2018-03-28",
    "description": "这里是一段描述...",
    "createBy": "zhangsan01", //empty if null
    "createAt": "zhangsan02", //empty if null
    //调查分类
    "surveyClassification": [{
        "classificationId": "", //empty if null
        //分类名称
        "classificationName": "领导魅力调查",
        "questions": [{
            "questionId": "", //empty if null
            "chineseTitle": "",
            "englishTitle": "",
            "questionType": ""
        }, {
            "questionId": "", //empty if null
            "chineseTitle": "",
            "englishTitle": "",
            "questionType": ""
        }]
    }, {
        "classificationId": "", //empty if null
        //分类名称
        "classificationName": "领导素质调查",
        "questions": [{
            "questionId": "", //empty if null
            "chineseTitle": "",
            "englishTitle": "",
            "questionType": ""
        }, {
            "questionId": "", //empty if null
            "chineseTitle": "",
            "englishTitle": "",
            "questionType": ""
        }]
    }]
}

怎么去构建实体，初学菜鸟，请帮帮我