JMeter common configuration components and parameterization

Jmeter Common configuration components

Common configuration components ：1、HTTP Request defaults ;2、HTTP Cookie Manager ;3、HTTP Cache Manager ;4、HTTP Header Manager

HTTP Request defaults

      There are many requests to create a test plan and they are all sent to the same server, Just add one in this “HTTP Request defaults ”, And set up “Server Name or IP”

 

HTTP Header Manager

Set up Jmeter Sent HTTP The information contained in the request header

The message header contains User-Agent、content-type、Referer

Put it at the thread group level as much as possible . Unless for some reason , Testers want different HTTP The request uses a different HTTP Message header

HTTP Cookie Manager

management Test Plan All of the runtime Cookie

HTTP Cookie The manager can automatically store all messages sent by the server to the client Cookie, And attach the appropriate Cookie

Users can also HTTP Cookie Add some manually in the manager Cookie, These were added by hand Cookie Will be automatically attached to the request when it is sent .

stay Cookie Add the Cookie Information , You only need to log in once to succeed .

HTTP CACHE Manager

It generally refers to the cache of the browser

Can be used to simulate the browser Cache Behavior , Closer to user behavior

If Test Plan One of them Sampler The requested element is the cached element , be Test Plan In the process of operation, it will be directly from Cache Read elements from , In this way, the return value will be empty . The Sampler Assertion is set to check whether the specified content in the response body exists , The assertion will fail .

Jmeter Common parameterization

Parameterization is a common technique for automated test scripts .

Simply speaking , The general usage of parameterization is to use variables to replace some inputs in the script , Specify the value range and rules of variables when the script runs .

such , When the script is running, you can choose different parameters as input according to your needs .

When referencing a variable in a certain place , Can pass ${ Variable name } To get the value of a variable .

If this variable is not defined , Then this formula will be treated as an ordinary string .

${ Variable name }

1、CSV Data controls

add to CSV Data file settings , Import the document with user name and password ., Set up UTF-8

Pictured , You can also ask for success .

The password document contains 5 Group user and password , Loop through thread groups 5 Time , You can traverse the user passwords in the document one by one .

 

 

 

 

 

 

Cancel the parameter in the request

2、 random number

Tools - Function Assistant dialog

Selection function , Input range , Click on “ Generate ”, That is, the function is copied .

Functions to be copied , Join the request , loop 5 Execution times .

You can see , Circulated 5 Execution times , This value is different every time .

You can also add letters before random numbers ,

It can also be used. POST Request to view

If the random numbers are the same , Is the diagram below