我在 Symfony2 项目中有一个表格，我需要提交表格。第一个想法是使用 ajax 提交，但问题是这不会通过 symfony2 所需的验证，并且我收到 CSRF 错误消息（请参阅我之前的问题：Symfony2：CSRF 令牌无效。请尝试重新提交表单） .
感谢@Elnur 的回答，我现在可以使用 $post 提交表单，但还有另一个问题。
使用 Ajay，我得到了一个 html 响应，并且我能够将此响应分配给一个 HTML 元素：
$.ajax({
type: "POST",
async: true,
url: href,
cache: false,
dataType: "json",
success: function(data) {
$("#content .contentwrap .itemwrap").html( data.content );
}
});
这是我得到的回复：
<div class="item item-last">
<h1>Create Affiliation</h1>
<div class="error">
<ul><li>The CSRF token is invalid. Please try to resubmit the form</li></ul>
<ul><li>The Affiliation should not be blank</li></ul>
</div>
</div>
<div class="item item-last">
<form action="/app_dev.php/user/submission/affiliation/create/4a0ad9f8020c5cd5712ff4c4c8921b32?ajax=no" method="POST" class="authorForm" >
<div style="float:left;">
<table width="100%" cellspacing="0" cellpadding="0">
<tr>
<td>
<label for="submissionAffiliationForm_affiliation" class=" required">Affiliation</label>
</td>
<td>
<input type="text" id="submissionAffiliationForm_affiliation" name="submissionAffiliationForm[affiliation]" required="required" size="40" />
</td>
</tr>
<tr>
<td>
</td>
<td>
<div class="button button-left button-cancel">
<img src="/bundles/sciforumversion2/images/design/new/button-red.png"/>
<a href="/app_dev.php/user/submission/author/edit/4a0ad9f8020c5cd5712ff4c4c8921b32/0" class="submission_link">cancel</a>
</div>
<div style="float: left;"> </div>
<div class="button button-left button-cancel">
<img src="/bundles/sciforumversion2/images/design/new/button.png"/>
<input type="submit" name="login" value="submit" />
</div>
<div style="clear: both;"></div>
</td>
</tr>
</table>
</div>
<input type="hidden" id="submissionAffiliationForm__token" name="submissionAffiliationForm[_token]" value="de9690f61f0ee5f30fdcc5152f44e76787f34bbb" />
</form>
</div>
但是现在，当使用 post 时：
$.post($this.attr('action'), $this.serialize(), function (data) {
$("#content .contentwrap .itemwrap").html( data );
});
我不再收到 HTML 而是 JSON 格式的响应，我不知道如何从中提取正确的信息。
这是我从帖子中得到的回复：
{"responseCode":400,"errors":false,"submitted":false,"content":"<!DOCTYPE html>\n<html>\n <head>\n <meta http-equiv=\"Content-Type\" content=\"text\/html; charset=utf-8\" \/>\n <meta http-equiv=\"refresh\" content=\"1;url=\/app_dev.php\/user\/submission\/4a0ad9f8020c5cd5712ff4c4c8921b32\" \/>\n\n <title>Redirecting to \/app_dev.php\/user\/submission\/4a0ad9f8020c5cd5712ff4c4c8921b32<\/title>\n <\/head>\n <body>\n Redirecting to <a href=\"\/app_dev.php\/user\/submission\/4a0ad9f8020c5cd5712ff4c4c8921b32\">\/app_dev.php\/user\/submission\/4a0ad9f8020c5cd5712ff4c4c8921b32<\/a>.\n <\/body>\n<\/html>","notice":""}
这是控制器的外观：
$em = $this->getDoctrine()->getEntityManager();
// get the user object
$user = $this->get('security.context')->getToken()->getUser();
$submission = $em->getRepository('SciForumVersion2Bundle:Submission')->findOneBy( array("hash_key"=>$hash_key) );
$author = $em->getRepository('SciForumVersion2Bundle:SubmissionAuthor')->findOneBy( array("id"=>$author_id, "hash_key"=>$hash_key) );
if( $author == null ) {
$author = new SubmissionAuthor();
$author->setPerson( new Person() );
}
$enquiry = new Affiliation();
$formType = new SubmissionAffiliationFormType();
$form = $this->createForm($formType, $enquiry);
$request = $this->getRequest();
$valid = true;
$error = '';
if( $request->get('cancel') == 'yes' ) return $this->redirect($this->generateUrl('SciForumVersion2Bundle_user_submission', array("key"=>$submission->getHashKey())));
if ($request->getMethod() == 'POST' && $request->get('ajax') == 'no') {
$form->bindRequest($request);
if ($valid = $form->isValid()) {
if( $valid ) {
$em->persist($enquiry);
$em->flush();
$uAff = new UserAffiliation();
$uAff->setUserId( $user->getId() );
$uAff->setAffiliationId( $enquiry->getId() );
$uAff->setUser( $user );
$uAff->setAffiliation( $enquiry );
$em->persist($uAff);
$em->flush();
// Redirect - This is important to prevent users re-posting
// the form if they refresh the page
return $this->redirect($this->generateUrl('SciForumVersion2Bundle_user_submission', array("key"=>$submission->getHashKey())));
}
}