示例：我收到响应为HTTP / 1.1 200 OK X-Backside-Transport：OK OK，OK OK，OK OK Server：Apache-Coyote / 1.1 eventid：24FCE4D8FA4E6E1212E71960612312321 uuid：ec00d8f0-b168-489e-996e-234234234wer
如何检索字段eventid的响应头值？它在功能文件中尝试“def event = response.eventid”但获得“pathnotfoundexception”