using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.IO; public partial class Default3 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { ShowPic.Visible = false;//初始化不显示 ShowText.Visible = false;//初始化不显示 } protected void Button1_Click(object sender, EventArgs e) { if (Directory.Exists(Server.MapPath("~/upimg/hufu")) == false)//如果不存在就创建file文件夹 { Directory.CreateDirectory(Server.MapPath("~/upimg/hufu")); } //Directory.Delete(Server.MapPath("~/upimg/hufu"), true);//删除文件夹以及文件夹中的子目录，文件 //判断文件的存在 if (File.Exists(Server.MapPath("~/upimg/Data.html"))) { Response.Write("Yes"); //存在文件 } else { Response.Write("No"); //不存在文件 File.Create(MapPath("~/upimg/Data.html"));//创建该文件 } string name = GetFiles.FileName;//获取已上传文件的名字 string size = GetFiles.PostedFile.ContentLength.ToString();//获取已上传文件的大小 string type = GetFiles.PostedFile.ContentType;//获取已上传文件的MIME string postfix = name.Substring(name.LastIndexOf(".") + 1);//获取已上传文件的后缀 string ipath = Server.MapPath("upimg") +"\\"+ name;//获取文件的实际路径 string fpath = Server.MapPath("upfile") + "\\" + name; string dpath = "upimg\\" + name;//判断写入数据库的虚拟路径 ShowPic.Visible = true;//激活 ShowText.Visible = true;//激活 //判断文件格式 if (name == "") { Response.Write("<script>alert('上传文件不能为空')</script>"); } else{ if (postfix == "jpg" || postfix == "gif" || postfix == "bmp" || postfix == "png") { GetFiles.SaveAs(ipath); ShowPic.ImageUrl = dpath; ShowText.Text = "你上传的图片名称是:" + name + "<br>" + "文件大小:" + size + "KB" + "<br>" + "文件类型:" + type + "<br>" + "存放的实际路径为:" + ipath; } else { ShowPic.Visible = false;//隐藏图片 GetFiles.SaveAs(fpath);//由于不是图片文件,因此转存在upfile这个文件夹 ShowText.Text = "你上传的文件名称是:" + name + "<br>" + "文件大小:" + size + "KB" + "<br>" + "文件类型:" + type + "<br>" + "存放的实际路径为:" + fpath; } } } }转载于:https://my.oschina.net/cookblack/blog/621406
文章来源: https://blog.csdn.net/weixin_34259159/article/details/92046053