下面是用于获取上游作业详细信息的Groovy脚本。

pipeline {
    agent any
    stages {
        stage('Build') {
            steps {
                script {

                        def cause = currentBuild.getBuildCauses('org.jenkinsci.plugins.workflow.support.steps.build.BuildUpstreamCause')
                        if(cause.size() > 0) { // This is triggred by a upstream Job
                            def parentJobName = cause[0].upstreamProject
                            def parentBuildNumber = cause[0].upstreamBuild
                            echo "Parent JOb: $parentJobName"
                            echo "Parent Build Number: $parentBuildNumber"

                        }
                    }

               }
            }

        }
}

Update您可以在不传递Class的情况下获取所有原因。

def cause = currentBuild.getBuildCauses()