python csv 数据切割定制jmeter数据

需求压测随机抽取10w数据中自定义区间的指定数量数据进行压测：

jmeter csv/txt配置:

 

 

 

 

需要获取{data: [${myList}]  }  jmeter需要数据类型

获取展读取csv数据展示{ data:

[

"cfcd208495d565ef66e7dff9f98764da", "c4ca4238a0b923820dcc509a6f75849b", "c81e728d9d4c2f636f067f89cc14862c"

]

}

 

import  hmac
import base64
from hashlib import sha1
import random

def test_get(index_start:int,n,path):

        with open(path, 'r') as f:
            lines = f.readlines()
        lines_data = [i.strip() for i in lines]
        if n%1000==0:
           numbers=int(n/1000)
           datas=[]
           for i in range(numbers):
             data=lines_data[index_start:index_start+1000]
             datas.extend(data)
           print("数据拼接长度{}".format(len(datas)))
           dt=["{}".format(i) for i  in datas]
           return dt
        else:
            numbers=int(n/1000)
            remain=n%1000
            datas = []
            for i in range(numbers):
                data = lines_data[index_start:index_start + 1000]
                datas.extend(data)
            seed=random.randint(index_start,index_start+100)
            datas.extend(lines_data[index_start+seed:index_start+seed
                                                     +remain])
            print("数据拼接长度{}".format(len(datas)))
            dt = ["{}".format(i) for i in datas]
            return dt

def write_result(index,numbers,path_csv):
    datas=test_get(index_start=index,n=numbers,path=path_csv)
    st=''
    for i in datas:
        st +='"{}", '.format(i)
    with open('./result.txt', 'w') as f:
        f.write('{}'.format(st.strip().strip(',')))
 

"""
def   hash_mac(app_secret:str,msg:str):
    hmac_code = hmac.new(app_secret.encode(), msg.encode(), sha1).digest()
    return base64.b64encode(hmac_code).decode()
"""

if __name__ == '__main__':

write_result(0, 1000, path_csv=r"D:\workspace\DS_4.csv")

生成数据csv/txt数据格式：