ASP .NET MVC Ajax请求内部服务器错误?

时间:2017-05-07 14:31:45

标签: jquery ajax asp.net-mvc asp.net-mvc-4

试图在asp.net mvc上学习ajax,但不知道它有什么问题吗?

我的控制器类方法=>

    [HttpPost]
    public JsonResult Getdata(string batchcode)
    {
        ///var studentid = db.Studentassignbatches.Where(x => x.batch_code == batchcode).Select(x => new Studentassignbatche { UserId = x.UserId }).ToList();
        return Json("hi",JsonRequestBehavior.DenyGet);
    }

和我的观点和ajax请求>

<select onchange="ShowBatchCode()" id="BatchList" class="form-control input-lg">
        <option class="pull-left" value="CCNA Security-1">CCNA Security-1</option>
        <option class="pull-left" value="CCNA Security-2">CCNA Security-2</option>
        <option class="pull-left" value="JNCSP-SEC-1">JNCSP-SEC-1</option>
        <option class="pull-left" value="Oracle Database 12c-1">Oracle Database 12c-1</option>
</select>

和ajax =&gt;

<script type="text/javascript">
function ShowBatchCode() {
    var batchcode = $('#BatchList').val();
    $.ajax({
        type: 'POST',
        dataType: 'json',
        contentType: 'application/json',
        url: 'Getdata',
        data: { batchcode: batchcode },
        success: function (data) {
            alert(data);
        },
        error: function (result) {
            alert('Something Went Wrong!');
        }
    });
}

它总是向我显示警告&#34;某些事情错了!&#34;。所以我调试我的网页,我发现=&gt; enter image description here

505内部服务器Error.i不知道如何解决它。并尝试删除 [Httppost]并尝试使用

 data: batchcode,

但没有任何对我有用。请帮助我吗?任何人!!!!!

1 个答案:

答案 0 :(得分:2)

您已表明:

contentType: 'application/json',

但您在此处发送了application/x-www-form-urlencoded

data: { batchcode: batchcode },

因此要么摆脱contentType: 'application/json'行,要么确保将JSON发送到服务器:

data: JSON.stringify({ batchcode: batchcode }),