你可以使用ScriptApproval#approveSignature 方法.这是一个适用于我的 Jenkins 2.85 的示例

You can use ScriptApproval#approveSignature method. Here is an example that works on my Jenkins 2.85

def signature = 'new groovy.json.JsonSlurperClassic'
org.jenkinsci.plugins.scriptsecurity.scripts.ScriptApproval.get().approveSignature(signature)