add start end note

Signed-off-by: zhangdd <86431843@qq.com>

Jenkinsfile

@@ -3,7 +3,9 @@ node{
         checkout([$class: 'GitSCM', branches: [[name: '$Branches']], doGenerateSubmoduleConfigurations: false, extensions: [], gitTool: 'Default', submoduleCfg: [], userRemoteConfigs: [[credentialsId: 'a97e0ce1-814b-4e7d-832a-4ac3eed72506', url: 'git@gitlab.schbrain.com:zhangdongdong/test.git']]])
     }
     def pom = readMavenPom file: 'pom.xml'
+    echo "start echo pom"
     echo "${pom}"
+    echo "end echo pom"
     stage('Maven Build'){
         sh "/var/jenkins_home/tools/apache-maven-3.6.3/bin/mvn clean -U package  -Dversion=${version} -Dmaven.test.skip=true -P${profiles}"
     }