Grails/Groovy - 域对象 - 其属性映射 [英] Grails / Groovy - Domain Object - Map of its Properties

问题描述

我如何才能获得我的一个域对象上仅用户定义属性的键/值的映射?

How can I get a map of the key/values of only the user-defined properties on one of my domain objects?

问题是如果我自己做这件事，我会得到我的属性加上类、元类、约束、闭包等......

Problem is if I do this myself, I get my properties plus class, metaClass, constraints, closures, etc...

我认为 Grails 可以很容易地做到这一点，因为它是在脚手架代码的某个级别完成的，对吗?我自己怎么做?

I assume Grails can do this fairly easily because it is done at some level in the scaffold code right? How can I do this myself?

推荐答案

试试这个

class Person{
    String name
    String address
}

def filtered = ['class', 'active', 'metaClass']

def alex = new Person(name:'alex', address:'my home')

def props = alex.properties.collect{it}.findAll{!filtered.contains(it.key)}

props.each{
    println it
}

如果您使用 alex.metaClass.surname = 'such'，它也可以使用.此属性将显示在每个循环中

It also works if you use alex.metaClass.surname = 'such'. This property will be displayed in the each loop

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