JMeter JSON提取器，提取字符串中一个键的所有值 [英] JMeter JSON Extractor, extract all values of one key in a string

问题描述

使用Apache JMeter版本3.2 r1790745(最新)测试JSON Web服务，响应如下:

Using Apache JMeter ver 3.2 r1790745 (the latest) to test a JSON Web Service, the response is like:

[ {
   "id" : 3,
   "description" : "Back",
   "name" : "back"
}, {
   "id" : 1,
   "description" : "Front",
   "name" : "front"
}, {
   "id" : 6,
   "description" : "Left",
   "name" : "left"
}]

想要解析以上响应，以在JSON提取器中将所有id都存储在一个字符串中，例如

Want to parse the above response to get all ids in one string in JSON Extractor, like

3,1,6

我的JSON Path表达式是这样的:

My JSON Path expressions is like this:

$..id

但是我只有第一个id为3，与$.[0].id的结果相同 在BeanShell PostProcessor中检查结果. 如果我转到 http://jsonpath.com/ $ .. id确实给了我

But I got only the 1st id which is 3, the same result as $.[0].id Checking the result in a BeanShell PostProcessor. If I go to http://jsonpath.com/ $..id does give me

[
  3,
  1,
  6
]

推荐答案

如果您配置 JSON提取器，例如:

您将获得所需的值为${foo_ALL}

我不认为使用Beanshell是检查JMeter变量值的最佳方法，今后我建议使用调试采样器，请参见如何调试Apache JMeter脚本以了解更多详细信息.

I don't think using Beanshell is the best way to check JMeter Variable value, going forward I would suggest using Debug Sampler instead, see How to Debug your Apache JMeter Script for more details.

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