jQuery上传文件和Core Web API接收保存文件

最新推荐文章于 2025-05-27 01:31:41 发布

秦宇升

最新推荐文章于 2025-05-27 01:31:41 发布

阅读量3.9k

点赞数 1

CC 4.0 BY-SA版权

文章标签： asp-net-core

本文链接：https://blog.youkuaiyun.com/xingyuhailing/article/details/63251508

本文介绍如何利用jQuery实现文件上传，并详细阐述ASP.NET Core Web API如何接收并保存上传的文件，提供了相关的代码示例和参考资料。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

jQuery上传文件和API接收保存文件
- jQuery代码是：

        <input type="file" id="files" name="files" multiple />
        <input type="button"  id="upload" value="Upload Selected Files" />

        $("#upload").click(function (evt) {
            var fileUpload = $("#files").get(0);
            var files = fileUpload.files;
            var data = new FormData();
            console.log("length=" + files.length);
            for (var i = 0; i < files.length ; i++) {
                data.append(files[i].name, files[i]);
            }
            data.append("1111", "222");
            $.ajax({
                type: "POST",
                url: "http://localhost:50090/api/test",
                contentType:false,
                dateType:"json",
                processData: false,
                data: data,
                success: function (json) {
                    alert(json);
                    var list = JSON.parse(json);
                    alert(list.res);
                },
                error: function () {
                    alert("There was error uploading files!");
                }
            });
        });

API代码是：

    string path = "";
    long size = 0;
    int i = 0;
    var files = HttpContext.Request.Form.Files;
    if (files.Count > 0)
    {
        //可以写遍历files
        var file = files[0];
        string upload_path = Directory.GetCurrentDirectory() + "/wwwroot";
        DateTime now = DateTime.Now;
        if (Directory.Exists(upload_path + "/images/" + now.Year) == false)//如果不存在就创建file文件夹
        {
            Directory.CreateDirectory(upload_path + "/images/" + now.Year);
        }
        if (Directory.Exists(upload_path + "/images/" + now.Year + "/" + now.ToString("MMdd")) == false)//如果不存在就创建file文件夹
        {
            Directory.CreateDirectory(upload_path + "/images/" + now.Year + "/" + now.ToString("MMdd"));
        }
        upload_path = upload_path + "/images/" + now.Year + "/" + now.ToString("MMdd");//新的目录

        var filename = ContentDispositionHeaderValue
                        .Parse(file.ContentDisposition)
                        .FileName
                        .Trim('"');
        string houzhui = filename.Substring(filename.IndexOf("."));
        var filenamenew = DateTime.Now.ToString("yyyyMMddHHmmssfff") + houzhui;
        filename = upload_path+"/" + filenamenew;
        path= "/images/" + now.Year + "/" + now.ToString("MMdd")+"/"+ filenamenew;
        size += file.Length;
        using (FileStream fs = System.IO.File.Create(filename))
        {
            file.CopyTo(fs);
            fs.Flush();
            i += 1;
        }
    }