Grails - 使用 JSON 启动域类 [英] Grails - Initiating domain class using JSON

问题描述

我有这个简单的域类:

class Settings {
static constraints = {
    uid(nullable: false, unique: true)
    person()
}

String uid
Map person
}

以及使用 json 请求更新数据的 Web UI:

and a web UI that update the data using a json request:

{"uid":1234 , person:{"first_name" : "jhon" , "last_name" : "doe"}}

在控制器代码中:

def json = request.JSON;
def s = new Settings(json);

似乎正在设置 s.uid 但是 s.person 地图仍然是空的.我错过了什么?

it seems that s.uid is being set however the s.person Map remains empty. What am I missing?

推荐答案

您可以在控制器中执行以下操作:

You can do something like the following in your controller:

def json = request.JSON;
def s = new Settings(json);
s.person = json.person;

很丑，但是数据绑定似乎不能处理嵌套的json

it's ugly, but the data binding doesn't seem to handle nested json

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