json - Grails JSON渲染

Question

我使用Grails 2.3.8。我注意到Grails JSON呈现中的奇怪行为。我有一个映射到mongodb的域类ShiftUpdateResponse，如下所示。

     class ShiftUpdateResponse {
        List<Employee> employees
        SalesPersonHours salesPersonHours;
        Integer fromDate
        Integer toDate
        Integer success

        static mapWith = "mongo"
        static hasMany = [employees:Employee]
        static embedded = ['employees','salesPersonHours']
        static constraints = {
           salesPersonHours nullable:true
           success nullable:true 
           fromDate nullable:true 
           toDate nullable:true 
        }

        String toString() {
           " $employees"
        }
      }

当我在 Controller 中创建ShiftUpdateResponse对象并使用以下代码段将其呈现为JSON时:

   def  sur = new ShiftUpdateResponse(employees:[], salesPersonHours:[], success:1, fromDate:from, toDate:to)
   println "from " + from
   println "to " + to
   println "from sur " + sur.fromDate
   println "to sur " + sur.toDate
   JSON.use('deep')
   render sur as JSON

我注意到以下几点

当我在渲染前不保存创建的实例sur时，控制台输出为

from 20130624
to 20130623
from sur null
to sur null

当我在渲染之前保存创建的实例时，控制台输出为

from 20130624
to 20130623
from sur null
to sur 20130623

无论哪种情况，呈现的JSON都不包含fromDate和toDate字段。可能是什么原因 ？ (我不需要保留该实例，只需要将其呈现为JSON)。

编辑:

呈现的JSON如下所示:

    {
"class": "com.scheduling.json.week.graphicalMode.ShiftUpdateResponse",
"id": 37,
"employees": [],
"salesPersonHours": null,
"success": 1
    }

Controller 代码:

    @Transactional
    def updateShift(){

    def reqJson = request.JSON
    somService.updateShift(reqJson)


    def from
    def to
    def week = WeekJson.get(reqJson.week_id)

    // code to construct from and to from week

    def sur = new ShiftUpdateResponse(employees:[],salesPersonHours:[],success:1,fromDate:from,toDate:to)

    //sur.save(flush:true)

    println "from "+from
    println "to "+to
    println "from sur "+sur.fromDate
    println "to sur "+sur.toDate


    JSON.use('deep')
    render sur as JSON

}

Answer 1

对不起，菜鸟错误。问题可能是因为在不同的程序包中存在相同文件的另一个副本。删除重复的固定东西。