如何在Grails脚本中建立休眠会话

发现 RunScript.groovy 它为您设置休眠会话,然后运行指定为参数的脚本。我必须将源代码从甘特脚本(上面)改为简单的:

// Import.groovy

def Channel = grailsApp.classLoader.loadClass("content.Channel")

def c 
c = Channel.newInstance(title:"A Channel", slug:"a-channel", position:0).validate()
c = Channel.newInstance().validate()
println(c.errors)

我可以这样运行它:

$>grails运行脚本/import.groovy

我在做这样的事,这对我很有用…

// Import.groovy

includeTargets << grailsScript("Bootstrap")

target(main: "Import some data...") {
    depends(bootstrap)

    // added this ------------------------------------------------------
    def sessionFactory = appCtx.getBean("sessionFactory")
    def session = SessionFactoryUtils.getSession(sessionFactory, true)
    TransactionSynchronizationManager.bindResource(
        sessionFactory, new SessionHolder(session))
    // added this ------------------------------------------------------

    def Channel = grailsApp.classLoader.loadClass("content.Channel")

    def c 

    // works: saving a valid Channel succeeds
    c = Channel.newInstance(title:"A Channel", slug:"a-channel", position:0).validate()

    // doesn't work: saving an invalid Channel fails with exception
    c = Channel.newInstance().validate()

    // this line is never reached due to exception
    println(c.errors)

}

setDefaultTarget(main)