读出Grails-Controller中的所有操作 [英] Reading out all actions in a Grails-Controller

问题描述

我需要从我的网络应用中的任何控制器读出所有可用的操作。其原因是授权系统，我需要给用户一个允许的操作列表。

例如：
用户xyz拥有执行操作show，list，search的权限。
用户管理员具有执行操作编辑，删除等的权限。

我需要读出控制器的所有操作。有没有人有一个想法？

解决方案

这将创建一个包含控制器信息的地图列表（'数据'变量）。 List中的每个元素都是一个包含控制器的URL名称（如BookController - >'book'），控制器名称对应的控制器名称（'BookController'）的'控制器'该控制器的操作名称列表：

  import org.springframework.beans.BeanWrapper 
 import org.springframework。 beans.PropertyAccessorFactory 
 
 def data = [] 
 for（控制器在grailsApplication.controllerClasses中）{
 def controllerInfo = [：] 
 controllerInfo.controller = controller.logicalPropertyName 
 controllerInfo.controllerName = controller.fullName 
列表actions = [] 
 BeanWrapper beanWrapper = PropertyAccessorFactory.forBeanPropertyAccess（controller.newInstance（））
 for（pd in beanWrapper.propertyDescriptors）{ 
字符串closureClassName = controller.getPropertyOrStaticPropertyOrFieldValue（pd.name，Closure）？.class？.name 
如果（closureClassName）动作<< pd.name 
} 
 controllerInfo.actions = actions.sort（）
 data<< controllerInfo 
} 
  

I need to read out all available actions from any controller in my web-app. The reason for this is an authorization system where I need to give users a list of allowed actions.

E.g.: User xyz has the authorization for executing the actions show, list, search. User admin has the authorization for executing the actions edit, delete etc.

I need to read out all actions from a controller. Does anyone has an idea?

解决方案

This will create a List of Maps (the 'data' variable) with controller information. Each element in the List is a Map with keys 'controller', corresponding to the URL name of the controller (e.g. BookController -> 'book'), controllerName corresponding to the class name ('BookController'), and 'actions' corresponding to a List of action names for that controller:

import org.springframework.beans.BeanWrapper
import org.springframework.beans.PropertyAccessorFactory

def data = []
for (controller in grailsApplication.controllerClasses) {
    def controllerInfo = [:]
    controllerInfo.controller = controller.logicalPropertyName
    controllerInfo.controllerName = controller.fullName
    List actions = []
    BeanWrapper beanWrapper = PropertyAccessorFactory.forBeanPropertyAccess(controller.newInstance())
    for (pd in beanWrapper.propertyDescriptors) {
        String closureClassName = controller.getPropertyOrStaticPropertyOrFieldValue(pd.name, Closure)?.class?.name
        if (closureClassName) actions << pd.name
    }
    controllerInfo.actions = actions.sort()
    data << controllerInfo
}

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