按需添加URL映射 [英] Add URL Mapping on demand

问题描述

我的Grails项目至少有20个控制器，每个控制器至少有4个方法，并且它正在不断增长。我决定注解每一个这样的方法：

  import enums.URLMapped 
 
 class HomeController {
 @URLMapped（url =/，alias =home）
 def landingPage（）{
 render（view：/ index）
} 
} 
  

如何在 URLMapping.groovy 动态？我可以这样做：

  import enums.URLMapped 
 import java.lang.reflect.Method 
 import org.apache.commons.lang.StringUtils 
 import org.codehaus.groovy.grails.commons.DefaultGrailsControllerClass 
 import org.codehaus.groovy.grails.commons.GrailsApplication 
 
 class UrlMappings {
 static mappings = {
/ $ controller / $ action？/ $ id？（。$ format）？{
 constraints {
 // apply constraints here 
 
 
 
 //我的注释抓取器/解析器
（GrailsApplication.getControllerClasses（）中的DefaultGrailsControllerClass控制器）{
 for（Method method in controller.getClazz（）。getDeclaredMethods（））{
 if（！method.isSynthetic（））{
 if（method.isAnnotationPresent（URLMapped.class））{
 URLMapped url = method。 getAnnotation（URLMapped.class）
名称$ {url.alias（）}：$ {url.url（）}{
 action =$ {method.getName（）}
 controller =$ {StringUtils。我想在上面实现的是这个静态的URL：$ b $（$。
 
 / *） b姓名：/{
 action =landingPage
 controller =Home
} 
 * / 
} 
} 
} 
} 
} 
} 
  

但问题是静态映射是一个闭包，你不应该假设在它内部循环（？）。那么如何添加我的网址？我始终可以将所有链接的所有静态URL都放在这里，这只是令人费解的维护。

你可以通过注释去掉这个想法，但是将你的项目分成几个插件（每个插件都是一个单独的grails应用程序），它们与gradle绑定在一起。

一些有用的信息：

1. https://docs.gradle.org/current/userguide/custom_plugins.html


2. https://docs.gradle.org/current/userguide/multi_project_builds.html

My grails project has at least 20 controllers each with at least 4 methods each, and it is continuing to grow. I decided to annotate every method like this:

import enums.URLMapped

class HomeController {
    @URLMapped(url="/", alias="home")
    def landingPage() {
        render(view: "/index")
    }
}

How can I append this URL value inside the URLMapping.groovy dynamically? I could do something like:

import enums.URLMapped
import java.lang.reflect.Method
import org.apache.commons.lang.StringUtils
import org.codehaus.groovy.grails.commons.DefaultGrailsControllerClass
import org.codehaus.groovy.grails.commons.GrailsApplication

class UrlMappings {
    static mappings = {
        "/$controller/$action?/$id?(.$format)?"{
            constraints {
                // apply constraints here
            }
        }

        // My annotation crawler/parser
        for(DefaultGrailsControllerClass controller in GrailsApplication.getControllerClasses()) {
            for(Method method in controller.getClazz().getDeclaredMethods()) {
                if(!method.isSynthetic()) {
                    if(method.isAnnotationPresent(URLMapped.class)) {
                        URLMapped url  = method.getAnnotation(URLMapped.class)
                        name "${url.alias()}": "${url.url()}" {
                            action="${method.getName()}"
                            controller="${StringUtils.capitalize(controller.getClazz().getSimpleName().split(/Controller/).getAt(0)}"
                        }
                        /* What I want to achieve above is this static URL:
                            name home: "/" {
                                action="landingPage"
                                controller="Home"
                            }
                         */
                    }
                }
            }
        }
    }
}

But the problem is that static mapping is a closure and you shouldn't suppose to loop (?) inside it. So how can I add my URL? I could always put all static URL for all of our links here, it's just getting tedious to maintain.

解决方案

I would strongly recommend you get rid of this idea with annotations but to divide your project into several plugins (each - a separate grails-app) tied together with gradle.

Some useful info:

1. https://docs.gradle.org/current/userguide/custom_plugins.html
2. https://docs.gradle.org/current/userguide/multi_project_builds.html

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