有没有办法在没有转换

Question

  

与杰克逊一起攀登

我有像这样的json

{
    "id":"tcsId",
    "status":0,
    "value":[
        {
            "teachClassMaster":{
                "maxStudCnt":"130",
                "lessonSchedules":[
                    {
                        "classroom":{
                            "roomId":"649",
                            "fullName":""
                        },
                        "timeBlock":{
                            "classSet":"480",
                            "name":"",
                            "endWeek":"16",
                            "beginWeek":"9",
                            "tmbId":"7905",
                            "dayOfWeek":"2"
                        },
                        "lsschId":"63652"
                    }
                ],
                "studCnt":"128",
                "lessonTeachers":[
                    {
                        "teacher":{
                            "name":"",
                            "teacherId":"7528"
                        }
                    }
                ],
                "name":"(2015-2016-1)-ac13544006-601026-1",
                "tcmId":"46336",
                "lessonSegment":{
                    "lssgId":"25512",
                    "lesson":{
                        "courseInfo":{
                            "courName":""
                        }
                    },
                    "fullName":""
                }
            },
            "tcsId":"3626332",
            "student":null,
            "dateAccept":"2015-06-16T20:42:05"
        }
    ]
}

结构非常复杂，如果我使用正常方式（转换为Object），我将有大量无用的类，代码会相当混乱。

有没有办法直接挑出某个值，比如使用['teachClassMaster'] ['lessonSchedules'] [0] ['classRoom'] ['roomId']​​获得649？

非常感谢。