如何在Grails脚本中访问服务？ [英] How can Services be be accessed within Grails scripts?

问题描述

关于create-script / run-script的文档很少，所以我想知道是否可以在grails脚本中注入/使用域类。
在一个普通的grails类中，我可以注入一个服务： 'm不知道Grails脚本的内容是哪里

解决方案

当使用Grails 2.4.3时，这里是我的完整解决方案：

首先，正如错误加载插件管理器：TomcatGrailsPlugin在Grails 2.3数据库迁移中，更改buildConfig.groovy中的tomcat构建类型来编译，而不是像这样构建：

  compile'：tomcat：7.0.42'
  

这样可以避免Error loading plugin manager： TomcatGrailsPlugin错误，否则每次运行脚本时都会发生此错误。

接下来，创建脚本/ DoSomething.groovy

$ b pre> includeTargets<< grailsS​​cript（_ GrailsInit）
includeTargets<< grailsS​​cript（_ GrailsBootstrap）
includeTargets<< grailsS​​cript（_ GrailsClasspath）

target（main：调用服务的示例脚本）{
取决于（引导程序）

def someService = appCtx。 getBean（someService）//查找服务
someService.runReportOrSomething（）//在服务
上调用一个方法
$ b $ setDefaultTarget（main）


上面的代码会导致整个Grails堆栈初始化，所以您的所有服务，域类等都将被设置

最后，运行它：

  grails prod do-something --stacktrace -echoOut 
  

您可能会尝试执行grails run-脚本脚本/ DoSomething.groovy，但无论出于何种原因似乎都无效。

The documentation on create-script/run-script is minimal so I'm wondering if it's possible to to inject/use domain classes in grails scripts. In a normal grails class I could inject a service like:

def myService

but I'm not sure where is would go inside of a grails script

解决方案

When using Grails 2.4.3, here is my complete solution:

First, as is mentioned in "Error loading plugin manager: TomcatGrailsPlugin" on Grails 2.3 Database Migration by Tai, change the tomcat build type in buildConfig.groovy to compile instead of build like so:

compile ':tomcat:7.0.42'

This avoids the "Error loading plugin manager: TomcatGrailsPlugin" error which would otherwise occur every time you run your script.

Next, create scripts/DoSomething.groovy

includeTargets << grailsScript("_GrailsInit")
includeTargets << grailsScript("_GrailsBootstrap")
includeTargets << grailsScript("_GrailsClasspath")

target(main: "An example script that calls a service") {
    depends(bootstrap)

    def someService = appCtx.getBean("someService") // look up the service
    someService.runReportOrSomething() // invoke a method on the service
}

setDefaultTarget(main)

The above code causes the entire Grails stack to initialize, so all your services, domain classes, etc. will be set up for you.

Finally, to run it, do this:

grails prod do-something --stacktrace -echoOut

You might be tempted to do "grails run-script scripts/DoSomething.groovy but for whatever reason that doesn't seem to work.

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