Jmeter- association request dependent & -json Extractor

1, in the http request to add the following postprocessor> JSON Extractor;

 

 

2, a first http request, returns the data as follows:

 

 

3. The Json format, extracts an http request from the first variable, and the variable name Json taken path setting variable values: json format hierarchy represented by dots, and if the returned array is a need subscripts next. scale from zero; if not an array, no subscripts;

 

 

 4, a second http request, the parameter can be taken directly to the corresponding variable;