Check multiple URL parameters with Thymeleaf

Question

In my Spring controller I'm redirecting to a view and adding two parameters param1 and param2. I want to make a div tag visible if param1 exists, so I check if param1 exists using Thymeleaf:

<div th:if="${param.keySet().contains('param1')}"> <p>something</p> </div>

And this will make the div visible...but if I add in the URL param2 too, it won't work anymore. Why? How do I make it work if I have multiple parameters? I want to use param2 for something else, take its value.

This is how my url looks like "/view?param1?param2=value". Do I need to separate the params differently?

Victor1125 · Accepted Answer · 2021-07-21 11:31:27Z

2

in URL character ? means start getting params. You used twice ?, so second only works, and param1 it is not taken as a parameter.

If you want pass on multiple paramters in url, you should put character & between params. In your case the url will look like:

/view?param1=value1&param2=value2

edited Jul 21, 2021 at 11:31

answered Jul 21, 2021 at 11:21

Victor1125

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Victor1125 Over a year ago

Other way to pass data in url is by path:

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