jenkins的pipeline 的序列化的概念【java.io.NotSerializableException】

1. pipeline里面的数据只能是字符串或者数字，其他不能被序列化的参数会报错

https://stackoverflow.com/questions/37864542/jenkins-pipeline-notserializableexception-groovy-json-internal-lazymap

2. 出现错误java.io.NotSerializableException【project不是字符串或者数字】

def getProject(projectName) {
    def project = hudson.model.Hudson.instance.getItemByFullName(projectName)
    if (!project) {error("Project not found: $projectName")}
    return project
}

stage('Demo') {
    project = getProject('add_build_info')    //这一步会出错
    def getUrl = project.lastBuild.getUrl()
    println(getUrl)
}

3. OK【没有返回project，而是字符串】

def getProject(projectName) {
    def project = hudson.model.Hudson.instance.getItemByFullName(projectName)
    if (!project) {error("Project not found: $projectName")}
    return project.lastBuild.getUrl()
}

stage('Demo') {
    project = getProject('add_build_info')
    println(project)


}

https://www.jenkins.io/doc/book/pipeline/shared-libraries/

package org.foo
class Utilities implements Serializable {
  def steps
  Utilities(steps) {   //构造器
    this.steps = steps
  }

  def mvn(args) {
    steps.sh "${steps.tool 'Maven'}/bin/mvn -o ${args}"
  }
}