将 XML 导入 Grails 域类 [英] Import XML into a Grails Domain Class

问题描述

我正在读取具有基于域类的架构的 XML 文件.

I am reading an XML file with a schema based on a Domain Class.

这里有一个简单的例子来说明(我目前的情况涉及很多类的很多字段):

Here is a simple example for illustration (my current situation concerns a lot of fields from a lot of classes) :

class Player {
  String name
  Date birthDate
}

要读取的 XML 文件是:

The XML file to read is :

<players>
<player name='P1' birthDate='12-09-1983'/>
</players>

所以我的问题是:解析 XML 文件时，我使用以下 Groovy 代码创建 Player 实例:

So my question is: When parsing the XML file, I create Player instances with the following Groovy code:

def players = new XmlSlurper().parse(xmlFile)
players.player.each() {p ->
  new Player(name: p.@name, birthDate: p.@birthDate).save()
}

还有其他更简单的方法吗?像使用 new Player(params) 或 player.properties = params 之类的代码创建/更新域对象时的参数绑定一样吗?

Is there another simpler way to do it ? Like params binding when creating/updating a domain object using code like new Player(params) or player.properties = params ?

推荐答案

实际上，您可以使用 attributes() 将属性列表直接提供给域类构造函数.

Actually, you can give directly the list of attributes to your domain class constructor with attributes().

def players = new XmlSlurper().parse(xmlFile)
players.player.each() {p ->
    new Player(p.attributes()).save()
}

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