Python+Jmeter实现自动化性能压测的流程步骤
作者:咖啡加剁椒③
Step01: Python脚本开发
文件路径:D://wl//testproject//Fone-grpc//project1//test_client.py
Python 脚本作用:
1.通过 grpc 调用底层 c++ 的接口,做数据库的数据插入与查询操作,然后将返回的结果进行拼接与输出。
2.代码里面将每一次调用后返回的内容进行拼接后,并做了成功信息的统计,输出成功的次数为3,输出后会转给 jmeter 里面的脚本获取。
from __future__ import print_function import logging import sys import grpc import Storage_pb2 # Storage_pb2.py which contains our generated request and response classes import StorageService_pb2_grpc # StorageService_pb2_grpc.py which contains our generated client and server classes. host="10.10.1.117:50066" def run(): result="" with grpc.insecure_channel(host) as channel: resp0=StorageService_pb2_grpc.FOneStorageStub(channel).InsertKVS(Storage_pb2.PUpsertKVS( DBName="MergeLog",TableName="MergeLog",KeyValues=[{"Key":b'',"Key":b''}],Upsert=True,Transaction=True )) result+=str(resp0) with grpc.insecure_channel(host) as channel: stud1=StorageService_pb2_grpc.FOneStorageStub(channel) resp1=stud1.InsertV(Storage_pb2.PInsertV(DBName="MergeLog", TableName="MergeLog", Value=b"1")) result += str(resp1) with grpc.insecure_channel(host) as channel: stud2=StorageService_pb2_grpc.FOneStorageStub(channel) resp2=stud2.FindOne(Storage_pb2.PFindK(DBName="MergeLog", TableName="MergeLog", Key="1")) result += str(resp2) result=result.replace("\n", " ") result=result.count("Successful return: 0") print(result) if __name__ == '__main__': logging.basicConfig() run()
PS:在本地调试好脚本,确保符合预期。
Step02: Jmeter 创建 beanshell 取样器
脚本内容如下:
import java.io.BufferedReader; import java.io.InputStreamReader; log.info("----------------------------start to exe"); String command = "cmd /c python D://wl//testproject//Fone-grpc//project1//test_client.py"; //定义要执行的python文件路径 String var; Runtime rt = Runtime.getRuntime(); Process pr = rt.exec(command); //执行上面的python脚本 pr.waitFor() BufferedReader b = new BufferedReader(new InputStreamReader(pr.getInputStream())); // 转换执行脚本后的返回响应 String line = ""; StringBuilder response = new StringBuilder(); while ((line = b.readLine()) != null) { response.append(line); } String response_data = response.toString(); log.info(response_data); if(response_data.equals("3")){ // 判断响应的内容是否有3次,如果不是3次就表示执行失败了 log.info("---------------------------success end exe"); }else{ log.error("--------------------------failed end exe"); //这里的输出一次会记录一次失败次数 } b.close();
Step03: 执行效果
通过 jmeter 工具进行并发操作,对后端底层接口进行压力测试,效果不错,效果图如下所示。
Step04: Jmeter日志输出
2023-02-22 17:26:08,539 INFO o.a.j.t.JMeterThread: Stopping because end time detected by thread: 线程组--python 1-33
2023-02-22 17:26:08,539 INFO o.a.j.t.JMeterThread: Thread finished: 线程组--python 1-33
2023-02-22 17:26:08,597 INFO o.a.j.u.BeanShellTestElement: 3
2023-02-22 17:26:08,597 INFO o.a.j.u.BeanShellTestElement: ---------------------------success end exe
2023-02-22 17:26:08,598 INFO o.a.j.t.JMeterThread: Stopping because end time detected by thread: 线程组--python 1-82
2023-02-22 17:26:08,598 INFO o.a.j.t.JMeterThread: Thread finished: 线程组--python 1-82
2023-02-22 17:26:08,608 INFO o.a.j.u.BeanShellTestElement: 2
2023-02-22 17:26:08,608 ERROR o.a.j.u.BeanShellTestElement: --------------------------failed end exe
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