JMeter的“如果控制器"有参数吗? [英] JMeter "if controller" with parameters?

问题描述

我正在阅读 JMeter文档，并遇到了此信息框关于如果控制器":

I was reading the JMeter documentation and came across this info box about "If Controllers":

当条件被解释为Javascript时，脚本将不使用任何变量.如果需要访问此类变量，请选择将条件解释为变量表达式?".并使用__javaScript()函数调用.然后，您可以在脚本中使用对象"vars"，"log"，"ctx"等.

No variables are made available to the script when the condition is interpreted as Javascript. If you need access to such variables, then select "Interpret Condition as Variable Expression?" and use a __javaScript() function call. You can then use the objects "vars", "log", "ctx" etc. in the script.

我不太明白这一点.这是否意味着如果我想访问用户定义的参数"，那么我只能通过编写一些JavaScript来访问它?然后，此框后面的示例将引用"$ {COUNT}"

I don't quite follow this. Does this mean if I want access to a "User Defined Parameter" then I can access it only by writing some JavaScript? The example that follows this box then refers to "${COUNT}"

有人可以用一个或两个例子来说明If Controller的用法吗?

Could someone clarify the usage of the If Controller, maybe with an example or two?

推荐答案

您可以简单地使用

${my_variable}=='1'

有时JMeter文档可能会令人困惑:)

Sometimes JMeter documentation can be confusing :)

编辑2017年9月27日:

这里的答案有效，但是当线程数超过40时，会对性能造成严重影响.

The answer here works but has a very bad performance impact when number of threads exceeds 40.

有关正确和效果最佳的答案，请参见下文:

See below for correct and most performing answer:

• https://stackoverflow.com/a/46976447/460802

请参阅:

• https://bz.apache.org/bugzilla/show_bug.cgi ?id = 61675

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