106 lines
3.7 KiB
C#
106 lines
3.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Security.Cryptography;
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using System.Web;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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public partial class SystemManage_signation2 : System.Web.UI.Page
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{
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protected void Page_Load(object sender, EventArgs e)
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{
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if (!Page.IsPostBack)
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{
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string id = Request.QueryString["ID"];
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if (string.IsNullOrEmpty(id))
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id = ZWL.Common.PublicMethod.GetSessionValue("UserID");
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ZWL.BLL.ERPUser bll = new ZWL.BLL.ERPUser();
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pic.ImageUrl = bll.GetSignation(id);
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}
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}
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protected void btn_upload_Click(object sender, EventArgs e)
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{
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string id = Request.QueryString["ID"];
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if (string.IsNullOrEmpty(id))
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id = ZWL.Common.PublicMethod.GetSessionValue("UserID");
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Boolean fileOk = false;
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if (pic_upload.HasFile)//验证是否包含文件
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{
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//取得文件的扩展名,并转换成小写
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string fileExtension = Path.GetExtension(pic_upload.FileName).ToLower();
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//验证上传文件是否图片格式
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fileOk = IsImage(fileExtension);
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if (fileOk)
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{
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//对上传文件的大小进行检测，限定文件最大不超过8M
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if (pic_upload.PostedFile.ContentLength < 8192000)
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{
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string filepath = "/signation/";
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string filename = Guid.NewGuid().ToString();
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if (Directory.Exists(Server.MapPath(filepath)) == false)//如果不存在就创建file文件夹
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{
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Directory.CreateDirectory(Server.MapPath(filepath));
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}
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string virpath = filepath + filename + fileExtension;//这是存到服务器上的虚拟路径
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string mappath = Server.MapPath(virpath);//转换成服务器上的物理路径
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pic_upload.PostedFile.SaveAs(mappath);//保存图片
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//显示图片
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bool flag = new ZWL.BLL.ERPUser().SetSignation(id, virpath);
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if (flag)
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{
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pic.ImageUrl = virpath;
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lbl_pic.Text = "修改成功";
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}
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else
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{
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pic.ImageUrl = virpath;
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lbl_pic.Text = "修改失败";
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}
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}
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else
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{
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pic.ImageUrl = "";
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lbl_pic.Text = "文件大小超出8M！请重新选择！";
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}
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}
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else
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{
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pic.ImageUrl = "";
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lbl_pic.Text = "要上传的文件类型不对！请重新选择！";
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}
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}
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else
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{
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pic.ImageUrl = "";
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lbl_pic.Text = "请选择要上传的图片！";
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}
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}
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/// <summary>
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/// 验证是否指定的图片格式
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/// </summary>
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/// <param name="str"></param>
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/// <returns></returns>
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public bool IsImage(string str)
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{
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bool isimage = false;
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string thestr = str.ToLower();
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//限定只能上传jpg和gif图片
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string[] allowExtension = { ".jpg", ".gif", ".bmp", ".png" };
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//对上传的文件的类型进行一个个匹对
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for (int i = 0; i < allowExtension.Length; i++)
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{
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if (thestr == allowExtension[i])
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{
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isimage = true;
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break;
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}
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}
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return isimage;
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}
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} |