Use of JMeter counters

Sample content , After reading data from the database , Put the read contents as parameters in order http In request .

One 、 Create thread group 、JDBC Request.

jdbc request For the creation of, please refer to ：Jmeter Create a link to the database _zaxuezhe The blog of -CSDN Blog

Data information returned by the database ：

Two 、 Create a loop controller

Set the number of cycles , The data I got here is 17 All cycles 17 Time .

  3、 ... and 、 Add counter

Set the counter

  Four 、 Open the function Assistant dialog , Using functions

  5、 ... and 、 Use the generated function in the requested parameters