jmeter 通过post Beanshell 终止线程

import org.json.*;
import org.apache.jmeter.threads.JMeterContextService;

String response = prev.getResponseDataAsString();
String code = prev.getResponseCode();
log.info("Respnse is--pem " + response);

JSONObject data_obj = new JSONObject(response);
if(data_obj.isNull("data")){

// 如果获取到前返回数据null 则终止线程
JMeterContextService.getContext().getThread().stop();
}else{
log.info("getPemQuery-pem :"+data_obj.get("data").getJSONArray("data").toString());
vars.put("result_pem",data_obj.get("data").getJSONArray("data").toString());
vars.put("len_pem",data_obj.get("data").getJSONArray("data").length().toString());
}