在JMeter中的BeanShell Sampler中将字符串解析为整数 [英] Parsing string to integer in BeanShell Sampler in JMeter

问题描述

我正在尝试在JMeter中将字符串解析为整数但由于跟随错误而失败。如果我尝试打印vars.get返回的字符串，它们看起来不错。

I'm trying to parse a string into integer in JMeter but failed due to following error. If I try to print the strings returned by vars.get, they look good.

2014/06/28 00:08:52 WARN  - jmeter.assertions.BeanShellAssertion: org.apache.jorphan.util.JMeterException: Error invoking bsh method: eval  Sourced file: inline evaluation of: ``if (ResponseCode != null && ResponseCode.equals ("200") == false ) {  int i = In . . . '' : Typed variable declaration : Method Invocation Integer.parseInt 

以下是我的代码

if (ResponseCode != null && ResponseCode.equals ("200") == false )
{
    int i = Integer.parseInt(vars.get("currentPMCount"));
    int j = Integer.parseInt(vars.get("pmViolationMaxCount"));
    if( i > j ){
        log.warn("PM count on server is greater than max allowed count.");
        }

        log.warn( "The return code is " + ResponseCode); // this goes to the JMeter log file
} 
else 
{
    Failure=true ;
    FailureMessage = "The response data size was not as expected" ;   
}

推荐答案

您的代码看起来不错但是它可能是 currentPMCount 和/或 pmViolationMaxCount 变量的问题。

Your code looks good however it can be a problem with currentPMCount and/or pmViolationMaxCount variables.

如果它们看起来很好并且看起来像整数并且不超过Integer的最大/最小值，您可以尝试以下方法：

If they really look good and look like Integers and don't exceed maximum/minimum values of Integer you can try the following:

1. 确保数字值周围没有空格字符，因为前导或尾随空格会导致转换失败。也许在变量上调用 trim（）方法可以提供帮助：

int i = Integer.parseInt(vars.get("currentPMCount").trim());

如果您将脚本存储到文件中，然后在Beanshell断言中提供文件的路径，您将会获取有问题的行号

我的最爱：将您的代码包围到try / catch块中，如下所示：

If you store your script into a file and then provide path to the file in Beanshell Assertion you'll get "problematic" line number

My favourite: surround your code into try/catch block as follows:

try{
    //your code here
}
catch (Exception ex){
    log.warn("Error in my script", ex);
    throw ex; // elsewise JMeter will "swallow" the above exception
}

这样你就可以得到更多信息丰富的堆栈跟踪，而不是糟糕的错误调用bsh方法消息，它什么也没说。

This way you'll get more informative stacktrace instead of lousy Error invoking bsh methodmessage which tells nothing.

请参阅如何使用BeanShell：JMeter最喜欢的内置组件指南，获取更多提示和技巧。

See How to use BeanShell: JMeter's favorite built-in component guide for more tips and tricks.

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