如何在Grails中设置JSON转换器的日期格式 [英] How to set date format for JSON converter in Grails

问题描述

我的Grails控制器中有一个方法应该返回一个JSON，JSON的属性是Date对象，但是当我这样做：

 将myObject渲染为JSON 
  

输出如下：

  {
dateProperty：2010-12-31T23：00：00Z，
otherProperty：aValue ...
} 
  

有没有办法更改使用的默认日期格式转换器？

我试图设置属性 grails.converters.json.date 还有code> grails.date.formats 在 Config.groovy 中，但这不起作用。

我做错了或是还有另一种做法吗？

谢谢

解决方案

我通常使用一个自定义的Marshaller。假设你有以下域名

  class Address {
 String addressOne 
 String city 
 / / bla bla 
日期dateCreated 
} 
  

在src / groovy下创建一个类像这样

  class AddressMarshaller {
 void register（）{
 JSON.registerObjectMarshaller（Address）{Address地址 - > 
 return [
 id：address.id，
 addressOne：address.addressOne，
 city：address.city，
 dateCreated：address.dateCreated.format（'yyyy -MM-dd'）
] 
} 
} 
  

然后在Bootstrap文件中执行以下操作：

  [new AddressMarshaller（）] .each {it.register（）} 
  

我这样做的一个数组的原因是因为我有多个编组。

现在，随着您以<地址作为JSON ，您将得到您所描述的JSON，并且您的日期格式正确。我知道这个格式在JSON格式化日期似乎是过分的，但这还有很多其他好处。

I've a method in my Grails controller that should return a JSON, a property of the JSON is a Date object, but when I do:

render myObject as JSON

the output is like:

{
    "dateProperty": "2010-12-31T23:00:00Z",
    "otherProperty" : "aValue..."
}

Is there a way to change the default date format used from the converter?

I've tried to set the property grails.converters.json.date and also grails.date.formats in the Config.groovy, but this doesn't work.
Am I doing something wrong or is there another way to do it?

Thanks

解决方案

I generally use a custom Marshaller. Assume you have the following Domain

class Address { 
  String addressOne
  String city
  //bla bla
  Date dateCreated
}

Create a class under src/groovy like this

class AddressMarshaller {
  void register() {
     JSON.registerObjectMarshaller(Address) { Address address ->
      return [ 
         id: address.id,
         addressOne: address.addressOne,
         city: address.city,
         dateCreated: address.dateCreated.format('yyyy-MM-dd')
      ]
  }
}

Then in your Bootstrap file do the following:

[ new AddressMarshaller() ].each { it.register() }

The reason I do it as an array like that is because I have multiple marshallers.

Now, anytime you do address as JSON, you'll get the JSON you've described and you're correct date format. I know this seems like overkill for formatting a date in JSON but this has a lot of other benefits.

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