jquery Ajax Post在Asp.net Core in .Net 6中无法在Action方法中工作

n3ipq98p 于 2023-10-17 发布在 jQuery

关注(0)|答案(4)|浏览(111)

我在cshtml中做了一个类似下面的调用：

$(document).ready(function(){
    $('.dl-dir-list').click(function(e){
        console.log($(e.target).data('path'));
        console.log(JSON.stringify({path: $(e.target).data('path')}));
        $.ajax({
            type: "POST",
            url: '@Url.Action("GetFiles")',
            data: JSON.stringify({path: $(e.target).data('path')}),
            dataType: "json",
            contentType: "application/json; charset=utf-8",
            success: function (response) {
                console.log(response);
            },
            error: function () {
                alert("Error while getting files");
            }
        });
    });
});

行动方式：

[HttpPost]
        public JsonResult GetFiles([FromBody]string path)
        {
            return Json(_fileService.GetFilesFromDirectory(path));
        }

问题是路径参数始终为空。会是什么问题呢？这是在ASP.NET核心，.NET 6版本

jquery

来源：https://stackoverflow.com/questions/71967046/ajax-post-in-asp-net-core-in-net-6-is-not-working-in-action-method

4条答案

按热度按时间

dfuffjeb1#

1.确保$(e.target).data('path')包含值。
2.将您的代码更改为：

data: JSON.stringify($(e.target).data('path')),

整个工作演示：
检视：

//be sure add this `data-path` attribute
<input type="button" value="Create" class="dl-dir-list" data-path="aaa"/>

@section Scripts
{
    <script>
        $(document).ready(function(){
            $('.dl-dir-list').click(function(e){
                console.log($(e.target).data('path'))   //result: "aaa"
                $.ajax({
                    type: "POST",
                    url: '@Url.Action("GetFiles")',
                    data: JSON.stringify($(e.target).data('path')), //change here....
                    dataType: "json",
                    contentType: "application/json; charset=utf-8",
                    success: function (response) {
                        console.log(response);
                    },
                    error: function () {
                        alert("Error while getting files");
                    }
                });
            });
        });
    </script>
}

控制器：

[HttpPost]
public JsonResult GetFiles([FromBody]string path)
{
    return Json(_fileService.GetFilesFromDirectory(path));
}

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shstlldc2#

像下面这样试试，

data: JSON.stringify({"path": $(e.target).data('path')}),

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6yoyoihd3#

要将JSON数据发送到ASP.NET Core 6控制器操作，需要进行一些更改。在这里，我创建了一个示例，其中包含所需的所有更改，并通过AJAX发送测试JSON数据
1.您的控制器操作应该如下所示

[HttpPost]
[Consumes("application/json")]
public IActionResult PostDataTest([FromBody] Employee[] employees)
{
    return Json(employees);
}

Ajax方法看起来类似于

var jsonData = [{"id":0,"name":"Very Long Employee Name with Many Characters 0","doj":"2022-08-21T11:23:24.1220131+05:30"},{"id":1,"name":"Very Long Employee Name with Many Characters 1","doj":"2022-08-20T11:23:24.1236139+05:30"},{"id":2,"name":"Very Long Employee Name with Many Characters 2","doj":"2022-08-19T11:23:24.1236164+05:30"},{"id":3,"name":"Very Long Employee Name with Many Characters 3","doj":"2022-08-18T11:23:24.1236167+05:30"},{"id":4,"name":"Very Long Employee Name with Many Characters 4","doj":"2022-08-17T11:23:24.123617+05:30"}];

var strJson = JSON.stringify(jsonData);

$.ajax({
        url: "/home/PostDataTest",
        type: "POST",
        dataType: "json",
        contentType: "application/json; charset=utf-8",
        data: strJson,
        success: function (result) {
            $("#txtJsonReturned").val(result);
        },
        error: function (err) {
            $("#txtJsonReturned").val("Error while uploading data: \n\n" + err);
        }
    });

我已经创建了一个示例来处理这个场景，并将其发布在GitHub https://github.com/rajabb/MvcCore6JsonUploadSample上。我希望这能解决问题。

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7gcisfzg4#

你好，你从Ajax方法中删除这一行，并尝试它。内容类型：“application/json;字符集=utf-8”，
.Net核心不接受在一个方法中的“contentType”字段。

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