从 Grails 中的 Quartz 作业渲染 GSP

Question

当我尝试时，我有一个需要渲染 GSP 的石英作业：

def g = new org.codehaus.groovy.grails.plugins.web.taglib.ApplicationTagLib()
def text = g.render(template: "/templates/myTemplate",
          model: [language: language,
                  product: product])

我收到以下异常：

org.quartz.JobExecutionException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request. [See nested exception: java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.]
    at org.codehaus.groovy.grails.plugins.quartz.GrailsJobFactory$GrailsTaskClassJob.execute(GrailsJobFactory.java:81)
    at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
    at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:525)
Caused by: java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.
    at org.springframework.web.context.request.RequestContextHolder.currentRequestAttributes(RequestContextHolder.java:123)
    at org.springframework.web.context.request.RequestContextHolder$currentRequestAttributes.call(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:117)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:121)
    at org.codehaus.groovy.grails.web.plugins.support.WebMetaUtils$_registerMethodMissingForTags_closure23.doCall(WebMetaUtils.groovy:248)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:88)
    at org.codehaus.groovy.runtime.metaclass.ClosureMetaMethod.invoke(ClosureMetaMethod.java:80)
    at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
    at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1058)
    at groovy.lang.ExpandoMetaClass.invokeMethod(ExpandoMetaClass.java:1070)
    at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:886)
    at groovy.lang.MetaObjectProtocol$invokeMethod.call(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:117)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:133)
    at org.codehaus.groovy.grails.plugins.web.GroovyPagesGrailsPlugin$_closure4_closure26.doCall(GroovyPagesGrailsPlugin.groovy:311)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:88)
    at org.codehaus.groovy.runtime.metaclass.ClosureMetaMethod.invoke(ClosureMetaMethod.java:80)
    at groovy.lang.MetaClassImpl.invokeMissingMethod(MetaClassImpl.java:813)
    at groovy.lang.MetaClassImpl.invokePropertyOrMissing(MetaClassImpl.java:1107)
    at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1060)
    at groovy.lang.ExpandoMetaClass.invokeMethod(ExpandoMetaClass.java:1070)
    at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:886)
    at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:39)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:117)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)

使用 Grails 1.3.2。我能做些什么来让它发挥作用有什么想法吗？编辑：这是 Grails 的当前限制http://jira.codehaus.org/browse/GRAILS-3818

Answer 1

从 Grails 2.0.4 开始你可以使用

grails.gsp.PageRenderer.render

在请求上下文之外呈现模板。