Javascript 无法将数据从控制器返回到ajax

我正在使用phalcon框架，在我的博客中，我想用ajax添加注释，但问题在于我的控制器查询。我不明白如何用ajax返回查询数据以供查看。我当前的查询脚本返回整个html页面，但我只需要注释数据。谁来帮忙

[控制器]

[Jquery]

[查看]

输出如下图所示：

---

您只能获取注释的文本，并将其作为json文件进行回显。研究一下如何从服务器返回json。互联网上有很多关于如何将php数组解析为json字符串并为ajax请求检索该字符串的参考资料

---

此外，您还必须更改javascript的ajax请求，以便获取json字符串并将其解析为javascript数组。

尝试将这一行移到操作的顶部：

$this->view->disabled();

从您当前代码的外观来看，它永远不会被解雇

也可以考虑重写这个块：

    if(!$comments->create() == true)
    {
        $this->flashSession->success("SUCCESS:: Comments inserted");
        return $this->response->redirect($this->request->getHTTPReferer());
    }
    else
    {
        return $this->response->setJsonContent(['bcoment' => $comments->bcoment, 'cauthor' => $comments->cauthor, 'entry_id' => $comments->entry_id]);
    }

也许可以简单地说：

if(!$comments->create()){
    return $this->response->setJsonContent(['status' => 'error']);
) else {
    return $this->response->setJsonContent([
        'status' => 'success',
        'payload' => [
            'bcoment' => $comments->bcoment, 
            'cauthor' => $comments->cauthor, 
            'entry_id' => $comments->entry_id
        ]
    ]);
}

试着这样做：

$('#comentSave').on('click', function(e) {
    e.preventDefault();
    var coment = $('.comnt').val();
    var cid = $('.pid').val();
    $.ajax({
    type:'POST',
    url:'blog/comments',
    data:{'bcoment':coment,'postId':cid},
    beforeSend: function(){$('.loader').html('Processing...');}
    }).done(function(resp){
        console.log(typeof resp);
        resp = JSON.parse(resp);
        resp.forEach(function(value){
            if(value.e === 'e1'){alert('Insertion Failed!');}
            if(value.e === 'e2'){alert('You are not authorized!');}
            if(value.e === 'e3'){if(value.uname === value.cauthor){var cdata = 'bcomBase';}else{cdata = 'bcom';}
                $('#datax').append('<div class="'+cdata+'"><img src="uploads/users/'+value.userimg+'"><b>'+value.cauthor+'</b><br/>'+value.bcoment+'</div>');
                $('.comentcount').text(value.count);
            }
        });
        $('#blogComment')[0].reset() || $('.comnt').val('');
    }).fail(function(){ alert('Reload & try again..!'); }).always(function(){});
    return false;
});


public function commentsAction()
{
$this->view->disable();
if(!empty($this->session->get('uname')))
{
    $comments = new Comments();
    $comments->cauthor = $this->session->get('uname');
    $comments->bcoment = $this->request->getPost('bcoment');
    $comments->entry_id = $this->request->getPost('postId');
    $resData = array();
    if($comments->save() === true)
    {
        $data = Blogs::findFirstByid($this->request->getPost('postId'));
        $cc = Comments::countByentry_id($this->request->getPost('postId'));
        $user = Users::findFirstByid($this->session->get('id'));
        $query = Comments::findByid($comments->id);
        foreach($query as $q){$resData[] = array('bcoment' => $q->bcoment, 'cauthor' => $q->cauthor, 'entry_id' => $q->entry_id, 'count' => $cc, 'userimg' => $user->image, 'e' => 'e3', 'uname' => $data->blog_author);}
        echo(json_encode($resData));                
    }
    else{$resData[] = array('e' => 'e1');echo(json_encode($resData));}
}
else{$resData[] = array('e' => 'e2');echo(json_encode($resData));}
}

---

你能举个例子吗？我明白你在做什么。不要在这里重定向：返回$this->response->redirect$this->request->getHTTPReferer；你只需要显示数据。能否显示$comments->create方法？在php脚本中，必须返回包含数据的json字符串。我会找到一个例子，如果我喜欢的话：返回json_encode$comments；然后像下面这样输出：[对象对象]刷新孔页面后立即显示真实数据，如下所示：您执行mysql查询。。。然后你会看到这样一个数组，我想：$row=username=>John，content=>这是我的评论。justdo:header'Content-type:application/json'；echo json_encode$行；你能用当前的HTML标记更新你的问题吗？以及所需的结果，请检查成功回调中返回的数据是什么。不知道这里到底发生了什么。您确定此回调中的数据是对象吗？

    if(!$comments->create() == true)
    {
        $this->flashSession->success("SUCCESS:: Comments inserted");
        return $this->response->redirect($this->request->getHTTPReferer());
    }
    else
    {
        return $this->response->setJsonContent(['bcoment' => $comments->bcoment, 'cauthor' => $comments->cauthor, 'entry_id' => $comments->entry_id]);
    }

if(!$comments->create()){
    return $this->response->setJsonContent(['status' => 'error']);
) else {
    return $this->response->setJsonContent([
        'status' => 'success',
        'payload' => [
            'bcoment' => $comments->bcoment, 
            'cauthor' => $comments->cauthor, 
            'entry_id' => $comments->entry_id
        ]
    ]);
}

$('#comentSave').on('click', function(e) {
    e.preventDefault();
    var coment = $('.comnt').val();
    var cid = $('.pid').val();
    $.ajax({
    type:'POST',
    url:'blog/comments',
    data:{'bcoment':coment,'postId':cid},
    beforeSend: function(){$('.loader').html('Processing...');}
    }).done(function(resp){
        console.log(typeof resp);
        resp = JSON.parse(resp);
        resp.forEach(function(value){
            if(value.e === 'e1'){alert('Insertion Failed!');}
            if(value.e === 'e2'){alert('You are not authorized!');}
            if(value.e === 'e3'){if(value.uname === value.cauthor){var cdata = 'bcomBase';}else{cdata = 'bcom';}
                $('#datax').append('<div class="'+cdata+'"><img src="uploads/users/'+value.userimg+'"><b>'+value.cauthor+'</b><br/>'+value.bcoment+'</div>');
                $('.comentcount').text(value.count);
            }
        });
        $('#blogComment')[0].reset() || $('.comnt').val('');
    }).fail(function(){ alert('Reload & try again..!'); }).always(function(){});
    return false;
});


public function commentsAction()
{
$this->view->disable();
if(!empty($this->session->get('uname')))
{
    $comments = new Comments();
    $comments->cauthor = $this->session->get('uname');
    $comments->bcoment = $this->request->getPost('bcoment');
    $comments->entry_id = $this->request->getPost('postId');
    $resData = array();
    if($comments->save() === true)
    {
        $data = Blogs::findFirstByid($this->request->getPost('postId'));
        $cc = Comments::countByentry_id($this->request->getPost('postId'));
        $user = Users::findFirstByid($this->session->get('id'));
        $query = Comments::findByid($comments->id);
        foreach($query as $q){$resData[] = array('bcoment' => $q->bcoment, 'cauthor' => $q->cauthor, 'entry_id' => $q->entry_id, 'count' => $cc, 'userimg' => $user->image, 'e' => 'e3', 'uname' => $data->blog_author);}
        echo(json_encode($resData));                
    }
    else{$resData[] = array('e' => 'e1');echo(json_encode($resData));}
}
else{$resData[] = array('e' => 'e2');echo(json_encode($resData));}
}