grails spring bean定义

Question

在我的Grails插件中，我定义了以下Spring bean

def doWithSpring = {

    // define a bean of type ConfigObjectHelper
    configHelper(ConfigObjectHelper)

    // Call a method of the bean we've just defined
    String appName = configHelper.getAsString('ftp.general.appName')

    // define another bean and pass appName to it's constructor
    pkApplication(Application, appName)
}

当我调用configHelper.getAsString时，我得到了一个NullPointerException，因为configHelper没有引用我在前一行中创建的bean。相反，Grails查找具有此名称的当前类的属性/字段。因为不存在，所以我会得到一个NullPointerException。

有没有办法在doWithSpring闭包中获得对Spring bean的引用？

谢谢

Answer 1

MethodInvokingFactoryBean出手相救！

def doWithSpring = {

    // define a bean of type ConfigObjectHelper
    configHelper(ConfigObjectHelper)    

    appName(org.springframework.beans.factory.config.MethodInvokingFactoryBean) {
        targetObject = ref('configHelper')
        targetMethod = 'getAsString'
        arguments = ['ftp.general.appName']
    }               

    // define another bean and pass appName to it's constructor
    pkApplication(Application, appName)
}