Jmeter BeanShell Generate phone number encryption signature

First of all, write a function according to the phone number generated encrypted string, and exported as a jar package, function specific content omitted, there are many online

Place the jar package under the JMeter lib\ext directory and add the path to the user.properties.

Create a BeanShell preprocessor, which is a pre-beanshell that will generate the mobile and signature I need before I send a request.

Concrete structure

The body data of my request is as follows:

{    "mobile":"${mobile}",    "  Signature":"${sin}"}

BeanShell Inside:

Import Tools.md5util; Md5util MD5=new  md5util ();   Vars.put ("str"= Vars.get ("str"); Vars.put ("sin", test.substring (0,32)); Vars.put (" Mobile ", test.substring (33));

There's a hole here that needs to convert the JMeter variable into a variable BeanShell know, String test = Vars.get This step is more important

Tried many times with ${str} to fetch the value directly, BeanShell does not treat it as a variable, but only as a string.

Printing results as follows, see the results should know, I encapsulated the method returned the signature + "," + mobile phone number, such as the variable str display, so I did in BeanShell inside the interception string processing:

　　

Jmeter BeanShell Generate phone number encryption signature