0、效果图
1、引入js、css(建议css放在html头部,js加载在html底部)
<link href="~/Content/fileinput.min.css" rel="external nofollow" rel="stylesheet" /> <script src="/UploadFiles/2021-04-02/jquery-1.10.2.min.js">2、html
<input type="file" id="uploaddoc" name="file" class="file" multiple />//上传按钮 multiple为可多文件上传 <input type="hidden" id="Doc" name="doc" value="" />//保存文件路径3、初始化
$("#uploaddoc").fileinput({ language: 'zh', uploadUrl: '/Form/upload',//后台上传方法 allowedFileExtensions: ['doc', 'docx'],//上传文件扩展名 shouUpload: false, showRemove: false, browseClass: 'btn btn-danger', maxFileSize: 5000, maxFileNum: 10, allowedPreviewTypes: null, previewFileIconSettings: { 'doc': '<i class="fa fa-file-word-o text-muted"></i>' }, previewFileExtSettings: { 'doc': function (ext) { return ext.match(/(doc|docx)$/i); } } });4、回调方法
var List = new Array();//声明保存上传文件路径数组对象 //上传 - 删除 $('#uploaddoc').on('filesuccessremove', function (event, key) { var abort = true; if (confirm("确定要删除已上传的文件吗?")) { abort = false; } var index1; $.each(List, function (index, item) { if (item.KeyID == key) {//默认fileinput.js的key与KeyID不一致,需要改动源码,详情见下文 index1 = index; $.post("/Form/uploaddelete", { key: item.KeyID, path: item.path });//删除以上传到本地的文件 } }); List.splice(index1, 1); var path = ""; $.each(List, function (index, item) { path += item.path; }); $("#Doc").val(path);//修改保存的文件路径 }); //取消上传事件,左上角的取消按钮 $('#uploaddoc').on('filecleared', function (event, files) { $.each(List, function (index, item) { $.post("/Form/uploaddelete", { key: "all", path: item.path }); }); List = new Array();//清空保存的文件路径数组对象,这里是赋值给新的空对象,应该可以优化为删除以保存的所有值 $("#Doc").val(""); }); //上传 - 成功 $("#uploaddoc").on("fileuploaded", function (event, data, previewId, index) { var form = data.form, files = data.files, extra = data.extra, response = data.response, reader = data.reader; List.push({ path: response.path, KeyID: previewId }) $("#Doc").val($("#Doc").val() + response.path); //$("#Doc").val(List); });5、后台上传方法
//上传方法 public JsonResult Upload() { HttpPostedFileBase file = Request.Files["file"]; if (file == null) { return Json(new { error = "上传异常" }); } var ext = Path.GetExtension(file.FileName); var filename = Path.GetFileNameWithoutExtension(file.FileName); var serverfilenname = Guid.NewGuid().ToString("n") + "_" + filename + ext; try { var path = "/File"; var dic = string.Format("{0}/{1}/{2}/{3}", path, DateTime.Today.Year.ToString(), DateTime.Today.Month.ToString(), DateTime.Today.Day.ToString()); if (!Directory.Exists(Server.MapPath(dic))) { Directory.CreateDirectory(Server.MapPath(dic)); } var webpath = string.Format("{0}/{1}", dic, serverfilenname); var serverpath = Path.Combine(Server.MapPath(dic), serverfilenname); file.SaveAs(serverpath); return Json(new { url = "/Form/uploaddelete",//定义要删除的action,没有用到可删掉 key = serverfilenname, path = webpath }); } catch (Exception ex) { return Json(new { error = "上传异常" + ex }); } } //删除本地文件方法 public JsonResult UpLoadDelete() { try { var key = Request.Params["key"]; var path = Request.Params["path"]; if (string.IsNullOrEmpty(key) || string.IsNullOrEmpty(path)) { return Json(false, JsonRequestBehavior.DenyGet); } path = Server.MapPath(path); if (System.IO.File.Exists(path)) { System.IO.File.Delete(path); return Json(true, JsonRequestBehavior.DenyGet); } else { return Json(false, JsonRequestBehavior.DenyGet); } } catch (Exception) { return Json(false, JsonRequestBehavior.DenyGet); } }6、缺点
尚未研究预览功能
尚有优化空间
7、说明
代码粘贴后可直接使用,后台框架为.net mvc5,默认母版页有加载bootstrap样式和js 如无样式请添加对bootstrap的脚本
引用
插件api地址:http://plugins.krajee.com/file-input#events
上网查了好多相关资料 都不完整,最后只有这个api可以看了,最后终于找到左上角关闭按钮的回调事件
总结
以上所述是小编给大家介绍的BootStrap Fileinput上传插件使用实例代码,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对网站的支持!