Grails action works for GET request, returns 404 for POST request
I'm learning to use Grails and have run into a situation I don't understand when handing what should be a simple form submission.
I have created a controller called 'add' (there is an AddController.groovy source file and an appropriate add/index.gsp view) and have defined a very sparse 'process' action which currently renders a small amount of HTML to verify that the action is being called.
The URL for the process action on the add controller is (not surprisingly) http://localhost:8080/frontend/add/process/.
I would like to submit a very simple form to the process action as a first step towards integrating with some existing Java libraries.
Sending a GET request to http://localhost:8080/frontend/add/process/ causes the process action to be called and the browser to display the relevant simple HTML content.
Sending a POST request to http://localhost:8080/frontend/add/process/ returns a HTTP 404 error.
I appreciate I'm missing some fundamental addition to my application such that the above action works with both GET and POST requests. I had assumed by default the request type would not matter.
I'd be very happy at this stage if I can send a POST request to the appropriate action and have some markup rendered just to demonstrate that things are working.
What fundamentally essentials piece of the puzzle am I missing?
controllers/frontend/AddController.groovy:
package frontend
class AddController {
def index = { }
def process = {
render "<h1>process action being performed</h1>"
}
}
views/add/index.gsp
<html>
<head>
<title>Test View for index action</title>
<meta name="layout" content="main" />
</head>
<body>
<g:form controller="add" action="process">
<label for="title">Title:</label>
<g:textField name="title" id="title" />
<label for="content">Content:</label>
<g:textArea name="content" id="content" />
<g:actionSubmit value="Add" />
</g:form>
</body>
&l开发者_如何学编程t;/html>
The <g:actionSubmit /> directive needs an action attribute to indicate the action to be handled. I had assumed the form action would have been sufficient.
I needed to change:
<g:actionSubmit value="Add" />
to:
<g:actionSubmit value="Add" action="process" />
加载中,请稍侯......
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