Grails - 覆盖resources.groovy中的bean属性值 [英] Grails - override a bean property value in resources.groovy

问题描述

在Grails i18n插件中定义了 messageSource bean 定义如此：

  messageSource（PluginAwareResourceBundleMessageSource）{
asenames = baseNames.toArray（）
 fallbackToSystemLocale = false 
 pluginManager = manager 
 .... 
} 
  

是否可以覆盖<$ code> fallbackToSystemLocale 来自我resources.groovy的值，如下所示：

  messageSource {
 fallbackToSystemLocale = true 
} 
  

以上操作无效，出现错误：创建名为'messageSource'的bean时出错：Bean定义是抽象的

解决方案

在 BootStrap.groovy ？

  class BootStrap {
 def def messageSource 
 def init = {servletContext  - > 
 messageSource.fallbackToSystemLocale = true 
} 
} 
  

如果你要在BootStrap运行之前修改Bean，可以使用 BeanPostProcessor ，如此博客帖子。

src / groovy / yourpkg / CustomBeanPostProcessor ：

pre $ import $ or $ $ $ $ $ $ $ $

$ Custom $

@Override
对象postProcessBeforeInitialization（Object bean，String beanName）{
返回bean
}

@Override
Object postProcessAfterInitialization（Object bean，String beanName）{
if（beanName =='messageSource'）{
bean.setFallbackToSystemLocale = true
}
返回bean
}

resources.groovy：

 $ b $ customBeanPostProcessor 
 
 
 $ 
There's a messageSource bean defined in the Grails i18n plugin defined thusly:
messageSource(PluginAwareResourceBundleMessageSource) {
  basenames = baseNames.toArray()
  fallbackToSystemLocale = false
  pluginManager = manager
  ....
}
Is it possible to override the configuration of just the fallbackToSystemLocale value from my resources.groovy, something like: 
messageSource {
    fallbackToSystemLocale = true
} 
The above doesn't work, I get an error: "Error creating bean with name 'messageSource': Bean definition is abstract"
解决方案
Is there any reason not to simply update the bean in BootStrap.groovy?
class BootStrap {
    def def messageSource
    def init = { servletContext ->
        messageSource.fallbackToSystemLocale = true
    }
}
If you want to modify beans before BootStrap has run, you can use a BeanPostProcessor as in this blog post.

src/groovy/yourpkg/CustomBeanPostProcessor:
import org.springframework.beans.factory.config.BeanPostProcessor

class CustomBeanPostProcessor implements BeanPostProcessor{

    @Override
    Object postProcessBeforeInitialization(Object bean, String beanName) {
        return bean
    }

    @Override
    Object postProcessAfterInitialization(Object bean, String beanName) {
        if(beanName == 'messageSource') {
            bean.setFallbackToSystemLocale = true
        }
        return bean
    }
}
resources.groovy:
beans = {
    customBeanPostProcessor(CustomBeanPostProcessor)
}


                        
这篇关于Grails  - 覆盖resources.groovy中的bean属性值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！