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Getting a single html list element back to my spring controller


If you don't want to use JavaScript and you don't mind refreshing, then you can have your sizes as URL parameters, and have the controller refresh the current page with the appropriate product.

<ul class="options
list-unstyled">
    <h4 class="m_9">Select a Size</h4>
    <li><a
href="?size=s">S</a></li>
    <li><a
href="?size=m">M</a></li>
    <li><a
href="?size=l">L</a></li>
    <li><a
href="?size=xl">XL</a></li>
</ul>

In your controller:

@RequestMapping(value = "/product",
params = "size", method = RequestMethod.GET)
public String getProduct(@RequestParam String
size, Model model){
    if ("s".equals(size)) {
        // add small product to model
    } else if ("m".equals(size)) {
        // add medium product to model
    }
    ....
    return "...";
}

A better approach is to have the sizes inside a select tag in the form. The controller will get the size when the form is submitted, and insert the appropriate product accordingly.


Categories : Java

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