如何扩展Jmeter Http Sampler在请求中注入auth令牌？

Question

My requirement is I need to pick two http headers and few json fields in request body and using those values generate a auth token using Base64 encryption and set the auth Token into request body before Jmeter makes the HTTP request to the server.

How to do this in JMeter??

I tried creating custom functions in JMeter but in the Function class current Sampler object is null.

Thanks in advance.

Answer 1

I believe that Beanshell PreProcessor is what you're looking for

• Access request headers:

   sampler.getHeaderManager().get(0); // first header sampler.getHeaderManager().get(1); // second header 

• Access request body:

   sampler.getArguments().getArgument(0).getValue(); 

• Base64 Encode something:

   import org.apache.jmeter.protocol.http.util.Base64Encoder; String encoded = Base64Encoder.encode("source"); 

For more information on Beanshell scripting in JMeter see How to use BeanShell: JMeter's favorite built-in component guide.