如何在Grails 3.0.1中启用CORS [英] How to enable CORS in Grails 3.0.1

问题描述

我想在服务器端使用Grails进行跨源通信。我发现的唯一文档是这一个

I would like to do cross origin communication using Grails in server side. The only documentation that I found is this one

https://grails.org/ plugin / cors

但这是一个旧版本的Grails。我发现的其他文档是春天：

but this is for an old version of Grails. The other documentation that I found is for spring:

https://spring.io/guides/gs/rest-service-cors/

所以我添加了文件 SimpleCorsFilter。 groovy 到 init / myproject / 文件夹，但我不知道如何将此组件连接到 resources.groovy

so I added the file SimpleCorsFilter.groovy to init/myproject/ folder, but I don't know how to wire this component into resources.groovy

推荐答案

具体来说，这里有一些代码。注意拦截器名称必须与你的控制器名称（这里是workRequest）匹配，域需要是你调用的任何东西（这里是localhost：8081），它是你想要的before（）方法：

To be specific, here is some code that works. Notice the interceptor name must match your controller name (here, workRequest), the domain needs to be whatever you are calling from (here, localhost:8081) and it is the before() method you want:

package rest
class WorkRequestInterceptor {
boolean before() { 
    header( "Access-Control-Allow-Origin", "http://localhost:8081" )
    header( "Access-Control-Allow-Credentials", "true" )
    header( "Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE" )
    header( "Access-Control-Max-Age", "3600" )  
    true 
}

boolean after() { true }
}

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