标签：多个 exception 命名 controls protected 文件格式 last log onclick
前台：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Alum.aspx.cs" Inherits="Album_Default" %> <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> </head> <body> <form id="form1" runat="server"> <div> <asp:FileUpload ID="fup" runat="server" /> <br /> <br /> <asp:Button ID="btnUp" Text="上传图片" runat="server" OnClick="btnUp_Click" /> <asp:Label id="lblInfo" runat="server" ForeColor="Red" Font-Size="13px" ></asp:Label> <br /> <br /> <asp:LinkButton ID="lbnPhoto" runat="server" PostBackUrl="~/Album/Photo.aspx" Text="查看照片"></asp:LinkButton> </div> </form> </body> </html>
后台：
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; public partial class Album_Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } private static bool IsAllowedExtension(FileUpload upfile) { string strOldFilePath = ""; string strExtension = ""; string[] arrExtension = { ".gif", ".jpg", ".bmp", ".png" }; if (upfile.PostedFile.FileName != string.Empty) { strOldFilePath = upfile.PostedFile.FileName;//获得文件的完整路径名 strExtension = strOldFilePath.Substring(strOldFilePath.LastIndexOf("."));//获得文件的扩展名，如：.jpg for (int i = 0; i < arrExtension.Length; i++) { if (strExtension.Equals(arrExtension[i])) { return true; } } } return false; } //图片上传并将图片重命名 protected void btnUp_Click(object sender, EventArgs e) { myClass myclass = new myClass(); try { if (fup.PostedFile.FileName == "") { lblInfo.Text = "请选择文件！"; } else { //string filepath = fup.PostedFile.FileName; if (!IsAllowedExtension(fup)) { lblInfo.Text = "上传文件格式不正确！"; } if (IsAllowedExtension(fup) == true) { string filepath = fup.PostedFile.FileName; string filename = filepath.Substring(filepath.LastIndexOf("\\") + 1); string serverpath = Server.MapPath("picture/") + filename; fup.PostedFile.SaveAs(serverpath); serverpath = "picture/" + filename; DateTime now = DateTime.Now; string sql = "insert into Photo (photoname,uptime,path)values(‘" + filename + "‘,‘" + now + "‘,‘" + serverpath + "‘)"; int flag = myclass.DataSQL(sql); if (flag == 1) lblInfo.Text = "上传成功！"; else lblInfo.Text = "上传失败！"; } else { lblInfo.Text = "请上传图片！"; } } } catch (Exception ex) { lblInfo.Text = "上传发生错误！原因是：" + ex.ToString(); } } }
可以上传图片。限制图片类型。还缺少同时上传多个文件和限制图片大小。最后补充一下看了很久的注释_(:з」∠)_。发一下马克一下。说不定魔改完就不见了。。
标签：多个 exception 命名 controls protected 文件格式 last log onclick
原文地址：http://www.cnblogs.com/qingzhengxiangmingyue/p/6095568.html
