grails - Grails GORM在Grails控制台中引发错误

Question

我正在尝试在Grails控制台中运行GORM方法(运行命令grails console之后)。我正在使用 Grails 2.3.11 。这是我从控制台运行的代码:

import com.company.dualenroll.registration.DualEnrollStudent

DualEnrollStudent.list()

我希望它可以正常工作，但是会引发异常。值得注意的是， DualEnrollStudent域类来自嵌入式插件。这是堆栈跟踪:

java.lang.IllegalStateException: Method on class [com.company.dualenroll.registration.DualEnrollStudent] was used outside of a Grails application. If running in the context of a test using the mocking API or bootstrap Grails correctly.
    at com.company.dualenroll.registration.DualEnrollStudent.currentGormStaticApi(DualEnrollStudent.groovy)
    at com.company.dualenroll.registration.DualEnrollStudent.list(DualEnrollStudent.groovy)
    at com.company.dualenroll.registration.DualEnrollStudent$list.call(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:112)
    at ConsoleScript0.run(ConsoleScript0:3)
    at groovy.lang.GroovyShell.runScriptOrMainOrTestOrRunnable(GroovyShell.java:257)
    at groovy.lang.GroovyShell.run(GroovyShell.java:481)
    at groovy.lang.GroovyShell.run(GroovyShell.java:163)
    at groovy.lang.GroovyShell$run$1.call(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:124)
    at groovy.ui.Console$_runScriptImpl_closure17.doCall(Console.groovy:954)
    at groovy.ui.Console$_runScriptImpl_closure17.doCall(Console.groovy)

Answer 1

确保从应用程序文件夹运行“grails控制台”。另外，您还需要在以下代码中运行代码:
DualEnrollStudent.withTransaction { status ->
// your code here
}
否则，您将收到异常消息，通知您尚未初始化Hibernate Session。