How do I stop webread from converting "%2B" into "+"?

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Nathan Lively 2021-10-10

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https://ww2.mathworks.cn/matlabcentral/answers/1560891-how-do-i-stop-webread-from-converting-2b-into

评论： Nathan Lively 2021-10-25

I need MATLAB to run webread with this exact URL: https://s3.amazonaws.com/appforest_uf/f1620499445726x864228122125595900/JBL%20VRX932LAP%20PSHF%2B3dB%20-%202m%20-%207150%20142.csv

Unforunately, every time it webread runs it converts the all of the "%2B" into "+" and then returns an error. How do I get it to use the exact URL as entered???

It keeps returning this error:

Error using matlab.internal.webservices.HTTPConnector/copyContentToFile (line 389)

The server returned the status 403 with message "Forbidden" in response to the request to URL

https://s3.amazonaws.com/appforest_uf/f1620499445726x864228122125595900/JBL%20VRX932LAP%20PSHF+3dB%20-%202m%20-%207150%20142.csv.

Error in readContentFromWebService (line 62)

copyContentToFile(connection, filename);

Error in webread (line 125)

[varargout{1:nargout}] = readContentFromWebService(connection, options);

Here's my code:

TF = webread('https://s3.amazonaws.com/appforest_uf/f1620499445726x864228122125595900/JBL%20VRX932LAP%20PSHF%2B3dB%20-%202m%20-%207150%20142.csv')

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Rik 2021-10-25

There isn't any command that I'm aware of. The idea is to replace every character with a value above 255 (or with a special meaning) by its hexadecimal version. So '+' becomes '%2B'. Since webread parses your URL for these changes, you can double-encode them: use '%252B' instead.

The idea is that webread parses the '%25' to a percent symbol and leaves the rest as is.

I have not tested this idea.

Nathan Lively 2021-10-25