Regular expression for validating a url
It also lets you control whether or not JMeter parses HTML files for images and other embedded resources and sends HTTP requests to retrieve them.
Each sampler (except Test Action) generates one or more sample results.[Only for HTTP Request with HTTPClient implementation] This property is used to enable IP Spoofing.It overrides the default local IP address for this sample.Additionally, you can specify whether each parameter should be URL encoded.If you are not sure what this means, it is probably best to select it. This functionality is present for If this is selected, then the response is not stored in the sample result.If the request uses a technique called "URL Rewriting" to maintain sessions, then see section 6.1 Handling User Sessions With URL Rewriting for additional configuration steps. If the server response is sent in several chunks, the overall elapsed time may be longer than the timeout.
A Duration Assertion can be used to detect responses that take too long to complete. If set, the JMeter sampler will check if the response is a redirect and follow it if so.
Note that the values are concatenated without adding any end-of-line characters.
These can be added by using the request header that is sent.
If you are going to send multiple requests to the same web server, consider using an HTTP Request Defaults Configuration Element so you do not have to enter the same information for each HTTP Request.
Or, instead of manually adding HTTP Requests, you may want to use JMeter's HTTP(S) Test Script Recorder to create them.
If you are going to send multiple requests to the same FTP server, consider using a FTP Request Defaults Configuration Element so you do not have to enter the same information for each FTP Request Generative Controller.