Download Web Page and Files
MATLAB® provides two functions for reading content from RESTful web services:
websave. With the
webread function, you can read
the contents of a web page to a character array in the MATLAB workspace. With the
websave function, you can save
web page content to a file.
Because it can create a character array in the workspace, the
webread function is useful for working with the contents of web
pages in MATLAB. The
websave function is useful for saving web pages
to a local folder.
webread returns HTML as a character array, remember that
only the HTML in that specific web page is retrieved. The hyperlink targets, images,
and so on, are not retrieved.
If you need to pass parameters to a web page, the
websave functions let you define the parameters as
Name, Value pair arguments. For more information, see the
Example — Use the webread Function
The following procedure demonstrates how to retrieve the contents of the web page
listing the files submitted to the MATLAB
Central™ File Exchange, https://www.mathworks.com/matlabcentral/fileexchange/. It assigns
the results to a character array,
filex = 'https://www.mathworks.com/matlabcentral/fileexchange/'; fullList = webread(filex);
Retrieve a list of only those files uploaded to the File Exchange within the past
seven days that contain the word Simulink®. Set
webread passes to the web page.
filex = 'https://www.mathworks.com/matlabcentral/fileexchange/'; recent = webread(filex,'duration',7,'term','simulink');
Example — Use the websave Function
The following example builds on the procedure in the previous section, but saves the content to a file:
% Locate the list of files at the MATLAB Central File Exchange % uploaded within the past 7 days, that contain "Simulink." filex = 'https://www.mathworks.com/matlabcentral/fileexchange/'; % Save the Web content to a file. recent = websave('contains_simulink.html',filex, ... 'duration',7,'term','simulink');
MATLAB saves the web page as
recent contains the full path to
contains_simulink.html. Call the
function to display
contains_simulink.html in a browser.
This page has links to files uploaded to the MATLAB Central File Exchange.