Question

我正在使用Grails 2.3.11。在BootStrap.groovy中，我打电话给：

def ctx = servletContext.getAttribute(ApplicationAttributes.APPLICATION_CONTEXT)
HotSwappableTargetSource ts = ctx.getBean("urlMappingsTargetSource")

我收到NoSuchBeanDefinitionException

12,09 21:55:44:084 [localhost-startStop-1] ERROR context.GrailsContextLoader - Error initializing the application: No bean named 'urlMappingsTargetSource' is defined
   org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'urlMappingsTargetSource' is defined
   at BootStrap$_closure1.doCall(BootStrap.groovy:10)
   at grails.util.Environment.evaluateEnvironmentSpecificBlock(Environment.java:308)
   at grails.util.Environment.executeForEnvironment(Environment.java:301)
   at grails.util.Environment.executeForCurrentEnvironment(Environment.java:277)
   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
   at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
   at java.util.concurrent.FutureTask.run(FutureTask.java:166)
   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
   at java.lang.Thread.run(Thread.java:722)

当我在开发环境中运行应用程序时，这不会引发异常。但是，如果我构建一个war文件并部署到tomcat，我会得到一个org.springframework.beans.factory.NoSuchBeanDefinitionException

使用Grails 2.1.0和2.2.4时，此行正常工作。我也尝试过Grails 2.3.9，但这也会抛出NoSuchBeanDefinitionException。

我也尝试使用依赖注入，但“urlMappingsTargetSource”为空

class BootStrap {

    def urlMappingsTargetSource

是否有其他人遇到此问题，或者有人知道我为什么会收到NoSuchBeanDefinitionException吗？

这个bean在Grails 2.3和Grails 2.2或2.1中的加载方式有什么变化吗？

非常感谢任何帮助或见解。

Answer 1

UrlMappingsGrailsPlugin.groovy包含以下代码

    if (Environment.isDevelopmentMode() || Environment.current.isReloadEnabled()) {
        "org.grails.internal.URL_MAPPINGS_HOLDER"(UrlMappingsHolderFactoryBean) { bean ->
            bean.lazyInit = true
        }

        urlMappingsTargetSource(HotSwappableTargetSource, ref("org.grails.internal.URL_MAPPINGS_HOLDER")) { bean ->
            bean.lazyInit = true
        }

        grailsUrlMappingsHolder(ProxyFactoryBean) { bean ->
            bean.lazyInit = true
            targetSource = urlMappingsTargetSource
            proxyInterfaces = [UrlMappings]
        }
    } else {
        grailsUrlMappingsHolder(UrlMappingsHolderFactoryBean) { bean ->
            bean.lazyInit = true
        }
    }

如果envrionment不是开发模式或启用重新加载，则bean不会被初始化。我将bean添加到我的resources.groovy并且它有效

import org.codehaus.groovy.grails.web.mapping.UrlMappingsHolderFactoryBean
import org.springframework.aop.framework.ProxyFactoryBean
import org.springframework.aop.target.HotSwappableTargetSource

// Place your Spring DSL code here
beans = {
"org.grails.internal.URL_MAPPINGS_HOLDER"(UrlMappingsHolderFactoryBean) { bean ->
    bean.lazyInit = true
}

urlMappingsTargetSource(HotSwappableTargetSource, ref("org.grails.internal.URL_MAPPINGS_HOLDER")) { bean ->
    bean.lazyInit = true
}

grailsUrlMappingsHolder(ProxyFactoryBean) { bean ->
    bean.lazyInit = true
    targetSource = urlMappingsTargetSource
    proxyInterfaces = [org.codehaus.groovy.grails.web.mapping.UrlMappings]
}
}

Grails 2.3初始化应用程序时出错：未定义名为“urlMappingsTargetSource”的bean

1 个答案: