Acquisition and transmission of parameters in automatic testing of JMeter interface

jmeter Interface automation testing ： Parameter acquisition and transmission
I've learned before java Code , So forget is not important to Baidu , Hit a few lines of code to achieve some simple data processing
stay jmeter Select from the post processor of the request beanshell processor , It's easy to write some simple code .
But for the jar The call of the package encountered some trouble ： hold jar The bag is in lib In file , restart jmeter, stay beanshell in , Use jsonArray.getJSONObject() There is no such method for error reporting
After various searches , In the test plan Add the following jar Package path , And put jar bag lib/ext Under the table of contents

next ： stay beanshell Editor import Introduce the jar package  

 

stay beanshell Editor import Introduce the jar package

After executing the request , For the acquisition of response data ：
String a = prev.getResponseDataAsString(); return String character string
Turn it into json Format ：
JSONObject json = JSONObject.parseObject(a)
Get the value corresponding to the key in the object ：json.get(" Key name ");    json.get(" Key name ").get(" Key name ");
Turn it into array The array format ：
JSONArray arr = JSONArray.parseArray(a);
adopt JSONObject json = JSONjson.getJSONObject( Subscript value ) To get the corresponding subscript object .

Add objects to array In the array ：arr.add(json);
String arr6 = arr.toString();

jmeter Assign values to custom variables in ： The assigned value must be of string type
vars.put("arr6",arr6 );

Convert objects to strings ：String.valueOf(jsonData.get("data").get("data"));

  The above customized variables arr6, It is used as a request parameter in other interface requests ：

For example  

The first 2 Kind of ： Add json Extractor ：