您可以使用Jenkins API获取以前构建的环境值，然后获取所需的参数：

//Get the job
projectJob = Jenkins.instance.getItemByFullName('PathOf/DesiredJobToGetParamsOf/master/')

//Get last successful build
env = projectJob.getLastSuccessfulBuild().getEnvVars()

// In env you get a list like: 
// [BRANCH_IS_PRIMARY:true, 
// BRANCH_NAME:master, 
// BUILD_DISPLAY_NAME:#29, 
// BUILD_ID:29,<many more>..., 
// param1:value1]

//Use the value of the desired parameter (e.g. "param1")
println(env["param1"])

//Output: "value1"