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。