如何让 jmeter 从每次迭代的响应中选择唯一值 [英] how to make jmeter to select unique values from response for each iteration

问题描述

我收到了来自 JMeter 的以下回复:

I have the following response from JMeter:

{"tot_cnt":{"tc":"41651","rpp":"100","pdid":"1594"},"mg":[{"id":"683","rsd":"6-May-13 / 6-May-13","col":"black","cc":"c_197","pn":"old_NEXUS MARKETING CAMPAIGNS-PERMANENT","loc":"PTD - 07 / 18 / BX","isf":"1","isl":"0","tq":"180","pi":"0","st":"2","dsid":"527","cid":"1917","iq":"0","wid":"WI/txq8xa56","inv":null,"rbp":"0","pdid":"106","di":"0","pl":"0","spl":null},{"id":"17670","rsd":"6-Jun-13 / 6-Jun-13","col":"black","cc":"c_197","pn":"old_NEXUS MARKETING CAMPAIGNS-PERMANENT","loc":"PTD - 07 / 18 / BX","isf":"1","isl":"0","tq":"180","pi":"0","st":"2","dsid":"527","cid":"1917","iq":"0","wid":"WI/ckwu5qe8","inv":null,"rbp":"0","pdid":"106","di":"0","pl":"0","spl":null},{"id":"22","rsd":"22-Jul-13 / 22-Jul-13","col":"black","cc":"c_1884","pn":"old_THE ORTHODONTIC CLINC","loc":"15 - 34 / 0N / RS","isf":"1","isl":"1","tq":"1","pi":"0","st":"2","dsid":"15","cid":"1992","iq":"0","wid":"WI/tldj53ky","inv":null,"rbp":"0","pdid":"1582","di":"0","pl":"0","spl":null},{"id":"686","rsd":"29-Jul-13 / 29-Jul-13","col":"black","cc":"c_197","pn":"old_NEXUS MARKETING CAMPAIGNS-PERMANENT","loc":"PTD - 07 / 18 / BX","isf":"1","isl":"0","tq":"180","pi":"0","st":"2","dsid":"527","cid":"1917","iq":"0","wid":"WI/n4olde1g","inv":null,"rbp":"0","pdid":"107","di":"0","pl":"0","spl":null},{"id":"73","rsd":"5-Aug-13 / 5-Aug-13","col":"black","cc":"c_2357","pn":"old_KCA DEATAG","loc":"338 - 34 / 0N / RS","isf":"1","isl":"1","tq":"1","pi":"0","st":"2","dsid":"338","cid":"1914","iq":"0","wid":"WI/zdqbx1zx","inv":null,"rbp":"0","pdid":"1578","di":"0","pl":"0","spl":null},{"id":"137","rsd":"5-Aug-13 / 5-Aug-13","col":"black","cc":"c_1219","pn":"old_TYPHOO - J01-TYPHOO- JULY 2013","loc":"56 - 24 / 81 / L3","isf":"1","isl":"0","tq":"2","pi":"0","st":"2","dsid":"56","cid":"2090","iq":"0","wid":"WI/azdtc77c","inv":null,"rbp":"0","pdid":"1086","di":"0","pl":"0","spl":null},{"id":"70","rsd":"12-Aug-13 / 12-Aug-13","col":"black","cc":"c_2394","pn":"old_SKF UK LTD","loc":"338 - 34 / 0N / RS","isf":"1","isl":"1","tq":"1","pi":"0","st":"2","dsid":"338","cid":"1914","iq":"0","wid":"WI/45uzkvp3","inv":null,"rbp":"0","pdid":"1556","di":"0","pl":"0","spl":null},{"id":"1253","rsd":"12-Aug-13 / 12-Aug-13","col":"black","cc":"c_2349","pn":"old_JUST TILES","loc":"PTD - 34 / 0M / MR","isf":"1","isl":"0","tq":"1","pi":"0","st":"2","dsid":"528","cid":"1955","iq":"0","wid":"WI/ofunwm5s","inv":null,"rbp":"0","pdid":"1559","di":"0","pl":"0","spl":null},{"id":"1320","rsd":"12-Aug-13 / 12-Aug-13","col":"black","cc":"c_2073","pn":"old_NEW COLLEGE SWINDON SUMMER CAMPAIGN","loc":"PTD - 34 / 0N / RS","isf":"1","isl":"0","tq":"1","pi":"0","st":"2","dsid":"528","cid":"1955","iq":"0","wid":"WI/gpp1dejn","inv":null,"rbp":"0","pdid":null,"di":"0","pl":"0","spl":null},{"id":"27","rsd":"19-Aug-13 / 19-Aug-13","col":"black","cc":"c_2138","pn":"old_WIRED STUDIO PEAK MEGA REAR","loc":"15 - 34 / 0N / RS","isf":"1","isl":"1","tq":"1","pi":"0","st":"2","dsid":"15","cid":"1992","iq":"0","wid":"WI/b5m0iyuc","inv":null,"rbp":"0","pdid":"1597","di":"0","pl":"0","spl":null},{"id":"561","rsd":"19-Aug-13 / 19-Aug-13","col":"black","cc":"c_3737","pn":"old_LONDON ROAD BRIDGE SCHEME DERBY CITY COUNCIL","loc":"PTD - 83 / 4I / WB","isf":"1","isl":"0","tq":"1","pi":"0","st":"2","dsid":"527","cid":"1917","iq":"0","wid":"WI/1s1xaqxw","inv":null,"rbp":"0","pdid":"2574","di":"0","pl":"0","spl":null}

我使用了 (?=(?:(?!isf).)*?isf":"1)(?=(?:(?!isl).)*?isl":"0)(?=(?:(?!st).)*?st":"2)"id":"(d+) 正则表达式选择需要的id.

I used (?=(?:(?!isf).)*?isf":"1)(?=(?:(?!isl).)*?isl":"0)(?=(?:(?!st).)*?st":"2)"id":"(d+) regular expression to select the required id.

当我使用 5 个用户运行测试时，在几个测试中，为不同的迭代选择了相同的 ID，导致错误.

When I run the test using 5 users, during few tests same id is selected for different iterations causing error.

我需要让 jmeter 从每次迭代的响应中提取一些独特的值.我怎样才能做到这一点?提前致谢.

I need to make jmeter extract some unique values from response for each iteration. How can I do that? Thanks in advance.

推荐答案

临时解决方案:

在您的Regular Expression Extractor"中，保持Match No."设置.为0"

In your "Regular Expression Extractor", keep the setting "Match No." as "0"

即使很难，ID 也不会是唯一的，但它会随机选择不同的值，而不是再次选择相同的值 &再次.

Even tough the ID's will not be unique but it will randomly select different values rather than selecting same value again & again.

完整的解决方案:

使用 Bean Shell Sampler 将所有有效的ID"写入 第一个线程组" 中的 CSV 文件&然后
在第二个线程组"中，使用为每个请求创建的具有唯一值的 CSV 运行测试.

write all the valid "ID" to CSV file in "1st Thread group" using Bean Shell Sampler & then
In the "2nd Thread Group" run the test using created CSV with unique values for each request.

在分析结果时，您可以忽略第一个线程组.

While analyzing the results you can ignore 1st thread group.

希望这会有所帮助.

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