如何提取json路径并找到数组长度？

how to extract JSON path and find array length using java? for my below response data. I need to validate array length should be equal to '7' in Jmeter assertion.

如何使用java提取JSON路径并查找数组长度?我的以下回复数据。我需要在Jmeter断言中验证数组长度应该等于'7'。

[
  [
    "Week",
    "Event Count"
  ],
  [
    "3/13/17",
    "1"
  ],
  [
    "3/20/17",
    "1"
  ],
  [
    "3/27/17",
    "1"
  ],
  [
    "4/3/17",
    "1"
  ],
  [
    "4/10/17",
    "1"
  ],
  [
    "4/17/17",
    "1"
  ]
]

1 个解决方案

#1

1. Add JSON Extractor as a child of the request which produces the above JSON response and configure it as follows:

   将JSON Extractor添加为请求的子节点,该请求生成上述JSON响应并按如下方式对其进行配置:

   • Variable names: anything meaningful, i.e. week

   变量名称:任何有意义的东西,即周

   • JSON Path Expressions: $[*]

   JSON路径表达式:$ [*]

   • Match No: -1

     比赛号:-1

     

   This will produce the following JMeter Variables (you can validate them using Debug Sampler):

   这将生成以下JMeter变量(您可以使用Debug Sampler验证它们):

   week_1=["Week","Event Count"]
   week_2=["3\/13\/17","1"]
   week_3=["3\/20\/17","1"]
   week_4=["3\/27\/17","1"]
   week_5=["4\/3\/17","1"]
   week_6=["4\/10\/17","1"]
   week_7=["4\/17\/17","1"]
   week_matchNr=7
   

   You are particularly interested in the latter one

   你对后者特别感兴趣

   

2. Add Response Assertion as a child of the same request and configure it as follows:

   将Response Assertion添加为同一请求的子节点,并按如下方式对其进行配置:

   • Apply to: JMeter Variable -> week_matchNr

   适用于:JMeter变量 - > week_matchNr

   • Pattern Matching Rules: Equals

   模式匹配规则:等于

   • Patterns to Test: 7

   要测试的模式:7

   

   This way your sampler will pass if number of matches will be equal to 7 and otherwise it will fail. See How to Use JMeter Assertions in Three Easy Steps article to learn more about using assertions in JMeter tests.

   这样,如果匹配数等于7,则采样器将通过,否则将失败。有关在JMeter测试中使用断言的详细信息,请参阅“如何在三个简单步骤中使用JMeter断言”一文。