如何在JMeter XPath断言中验证变量值相等及传递多变量？

1. Can I use XPath Assertion to verify Var_A equals Var_B? #

Absolutely, though there are a couple of ways to go about it depending on what you're trying to achieve:

• Direct XPath Assertion against Var_B
  If you want to validate that the txtCurrentCashTally field's value in your current response matches Var_B, just update your XPath expression to reference the variable directly:

  //input[@id='txtCurrentCashTally']/@value='${Var_B}'
  

  JMeter will substitute ${Var_B} with its actual value before running the XPath check. If the expression returns true, that means the value you extracted as Var_A (from this same field) is equal to Var_B—so your assertion passes.

• JSR223 Assertion (more flexible option)
  Since you already have both Var_A and Var_B saved as JMeter variables, a simpler and more adaptable approach is to use a JSR223 Assertion with this Groovy code:

  def varA = vars.get("Var_A")
  def varB = vars.get("Var_B")
  
  if (!varA.equals(varB)) {
      AssertionResult.setFailure(true)
      AssertionResult.setFailureMessage("Var_A (${varA}) doesn't match Var_B (${varB})")
  }
  

  This lets you handle edge cases (like null values or numeric vs string comparisons) easily and gives you clear, specific failure messages when things don't match.

2. Does the "JMeter Variable name to use" field support multiple variable names? #

Assuming you're talking about fields like the Reference Name in the XPath Extractor (or similar fields in other JMeter components that let you assign a variable name), the short answer is no—you can't input multiple variable names into one instance of this field.

If you need to store values into multiple variables:

• For extracting different values (from distinct XPath expressions), you'll need to add separate XPath Extractors—one for each variable you want to create.
• For capturing multiple matches of the same XPath expression, set the Match No. field to -1 (this tells JMeter to grab all matches). It will automatically store results in variables like yourVarName_1, yourVarName_2, etc., which you can reference individually later.

内容的提问来源于stack exchange，提问作者Akshay Upadhya