jmeter Beanshell PostProcessor删除标头引发异常

Question

When I was using BeanShell PostProcessor to delete the header，there is a problem my code:

import org.apache.jmeter.protocol.http.control.Header; 

sampler.getHeaderManager().removeHeaderNamed("Authorization");

exception:

2017/05/18 15:24:52 ERROR - jmeter.util.BeanShellInterpreter: Error invoking bsh method: eval   Sourced file: inline evaluation of: ``import org.apache.jmeter.protocol.http.control.Header;   sampler.getHeaderManage . . . '' : Attempt to resolve method: getHeaderManager() on undefined variable or class name: sampler 

2017/05/18 15:24:52 WARN  - jmeter.extractor.BeanShellPostProcessor: Problem in BeanShell script org.apache.jorphan.util.JMeterException: Error invoking bsh method: eval   Sourced file: inline evaluation of: ``import org.apache.jmeter.protocol.http.control.Header;   sampler.getHeaderManage . . . '' : Attempt to resolve method: getHeaderManager() on undefined variable or class name: sampler 

somebody help me

Answer 1

1. You don't have sampler shorthand in the PostProcessor, if you need to remove the header from the previous sampler the relevant code should look like:

    ctx.getCurrentSampler().getHeaderManager().removeHeaderNamed("Authorization"); 

   • ctx is a shorthand to JMeterContext class instance
   • be aware that PostProcessors are executed after requests so make sure your implementation is inline with what you are trying to achieve
2. If you need to remove the header before the request consider using PreProcessor instead. In this case you will be able to use sampler shorthand
3. I would recommend considering using JSR223 Test Elements and Groovy language as an alternative to Beanshell as Groovy performance is much better at it is more Java-compliant.