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POHandling a checkbox form in a dialog with Spring MVC
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copied!<p>There are plenty of tutorials out there showing how to build a form with a simple POJO model object and the "command" property on the Spring taglib.</p> <p>Examples: <a href="http://fruzenshtein.com/spring-mvc-form-checkboxes/" rel="nofollow">A tutorial</a></p> <p>I seem to thrive on making my life hard, though and have my form running in a jQuery dialog box...whose checkbox statuses are pre-processed with a javascript function. I'm doing this through AJAX calls in that javascript function.</p> <p>Sooo, my form init looks like this:</p> <pre><code><form:form action="javascript:associateArtifacts()"> </code></pre> <p>This invoked my javascript method:</p> <pre><code>function associateArtifacts(){ /* JSONIFY the list of checked boxes and send that data to the server here in an AJAX call */ var artifacts = []; $('#artifacts_container input:checkbox').each( function(j,listitem) { artifacts.push(listitem.name); }); $.ajax({ type: "POST", url: "associateArtifacts.html", data:JSON.stringify(artifacts), success: function(html){ alert( "Submitted"); } }); return false; </code></pre> <p>}</p> <p>The point of this is building a dialog with a list of checkboxes that are checked based on DB data that the user can modify then save back to the server.</p> <p>My issue is, I'm getting the dialog up and populated with the checkboxes and loaded with the values, but I seem to have not thought it through as I have no idea how to intercept the data coming to the server as JSON and process it.</p> <p>In the past I've done this with URL'd parameters, but in this case is a variably-sized large string of JSON data. </p> <p>Am I going to be forced to define an object that just hold a single List in it for my Spring MVC container to assign this JSON data to? Seems kind of ridiculous...</p> <p>Thoughts? Suggestions? Harsh criticisms for going at this entirely wrong?</p> <p>Thanks for any of the above.</p> <h2>EDIT</h2> <p>Signature looks like this: </p> <pre><code>@RequestMapping(value = "/associateArtifacts.html", method = RequestMethod.POST, headers = {"content-type=application/json"}) public void associateArtifacts(@RequestBody List<String> checkboxData){ </code></pre> <p>Client from data in Chrome Tools looks like this:</p> <pre><code>["checkboxTitle1","checkboxTitle2","checkboxTitle3"]: </code></pre> <p>Which is produced by my client when I take my array of checkBox names and do this to it:</p> <pre><code>JSON.stringify(arrayOfNames) </code></pre> <p>Current error is:</p> <pre><code>HTTPStatus 415 - The server refused this request because the request entity is in a format not supported by the requested resource for the requested method. </code></pre> <h2>EDIT #2</h2> <p>It was the lack of contentType on my AJAX call, as you suggested. Thanks.</p>

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