Ajax提交表单

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link href="/static/common.css" rel="stylesheet">
    <style>
        .hide {

            display: none;
        }

     .shadow {
         position:fixed;
         left:0;
         top: 0;
         bottom: 0;
         right: 0;
         background-color: black;
         opacity: 0.6;
         z-index: 1;
    }

        .add-app {
            position: fixed;
            height: 400px;
            width: 400px;
            margin-left:100px ;
            border: 1px solid indianred;
            top: 100px;
            left: 25%;
            background-color: white;
            z-index: 2;
        }

    </style>


</head>
<body>

<h1>应用列表:</h1>
<P><input type="button" value="添加" id="i1"/></P>

<table border="1">

    <thead>

     <tr>
         <td>应用名称</td>
         <td>应用主机列表</td>
     </tr>
    </thead>

    <tbody>
        {% for row in app_list%}

            <tr>
                <td>{{ row.name }}</td>
                <td>
                    {% for host in row.r.all %}
                    <span class="host_tag">{{ host.hostname }}</span>
                    {% endfor %}
                </td>
            </tr>

        {%endfor%}

    </tbody>

</table>

<div class="shadow hide"></div>
<form id="add_form">

<div class="add-app hide">

    <input type="text" placeholder="应用名称" name="app_name"/>

    <div class="group">
    <select id="host_list" name="host_list" multiple>

        {% for row in host_list %}
        <option value="{{row.nid}}">{{row.hostname}}</option>

        {% endfor %}

    </select>

        </div>
    <input type="submit" value="提交">
    <input id="ajax_submit" type="button" value="ajax提交">

    <input id='i2' type="button" value="取消">
    <span id="error_msg" style="display: inline-block;color: red"></span>

</div>
</form>


<script src="/static/jquery-3.2.1.min.js"></script>
<script>

    $(function () {

        $('#i1').click(function () {

            $('.shadow,.add-app').removeClass('hide');

        })

         $('#i2').click(function () {

            $('.shadow,.add-app').addClass('hide');

        })
    
        $("#ajax_submit").click(function () {
            
            
            $.ajax({
                
                url:'/xiaoqing/ajax_submit/',    #//提交url
                data:$("#add_form").serialize(), # //input,select数据打包发向后台
                type:'POST',     # //提交请求类型
                dataType:'Json',   #//发送数据类型
                traditional:true,   #//如果是多选的话，必须加上此选项
                success:function (obj) {      #//发送成功后回调函数
                    
                    console.log(obj);
                    location.reload(); #刷新
                    location。href('http://')  #跳转
                },
                error:function () {

                }
                
                
                
                
            })
            
            
            
        })


    })


</script>

</body>
</html>
ajax.html
def app(request):
    if request.method=="GET":

        app_list=models.Application.objects.all()
        host_list=models.Host.objects.all()

        for row in app_list:
            print(row.name,'-|-',row.r.all())



        return render(request,'app.html',{'app_list':app_list,'host_list':host_list,})

    elif request.method == "POST":
        appname = request.POST.get('app_name')
        hostlist = request.POST.getlist('host_list')
        print(appname,hostlist)
        obj = models.Application.objects.create(name=appname)
        obj.r.add(*hostlist)
        return redirect('/xiaoqing/app')
views函数