C#实现上传照片到物理路径，并且将地址保存到数据库的小例子

效果：

思路：
首先，获取图片物理地址，然后进行判断将图片保存到文件夹下，再将图片的信息保存到数据库。
数据库：

create table image1  (  ID int identITy(1,1) Primary key,  ImageName vArchar(100) ,  ImageTyPE VARchar(20),  ImagePath varchar(200)  )

代码：

body>
          form id="form1" runat="server">
          p>
              table>
                  tr>
                      td colspan="2" style="height: 21px">
                                             /td>
                  /tr>
                  tr>
                      td style="width: 400px">
                          asp:FileUpload ID="FileUpload1" runat="server" />
                           asp:Label ID="label1" runat="server" ForeColor="red">
    /asp:Label>
                      /td>
                      td style="width: 80px">
                          asp:Button ID="UploadButton" runat="server" Text="上传图片" OnClick="UploadButton_Click" />
                      /td>
                  /tr>
                  tr>
                      td colspan="2" align="center">
                          br />
                          br />
                          asp:Image ID="Image1" runat="server" Height="118px" Width="131px" />
                      /td>
                  /tr>
              /table>
          /p>
          /form>
      /body>
    

using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    using System.IO;
    using System.configuration;
    using System.Data;
    using System.Data.SQLClient;
namespace InExcelOutExcel{
    public partial class UpWord : System.Web.UI.Page    {
        PRotected void Page_Load(object sender, Eventargs e)        {
        }
            string SQLString = ConfigurationManager.ConnectionStrings["ConnectionStr"].ToString();
        protected void UploadButton_Click(object sender, EventArgs e)        {
            try            {
                using (SqlConnection sqlcon = new SqlConnection(SQLString))                {
                        string FullName = FileUpload1.PosteDFile.FileName;
    //获取图片物理地址                    FileInfo fi = new FileInfo(FullName);
                        string name = fi.Name;
    //获取图片名称                    string type = fi.Extension;
//获取图片类型                    if (type == ".jpg" || type == ".gif" || type == ".bmp" || type == ".png")                    {
                            string SavePath = Server.MapPath("~\\excel");
    //图片保存到文件夹下                        this.FileUpload1.PostedFile.SaveAs(SavePath + "\\" + name);
    //保存路径                        this.Image1.Visible = true;
                            this.Image1.ImageUrl = "~\\excel" + "\\" + name;
    //界面显示图片                        string sql = "insert into image1(ImageName,ImageType,ImagePath) values('" + name + "','" + type + "','~\\excel" + name + "')";
                            SqlCommand cmd = new SqlCommand(sql, sqlcon);
                            sqlcon.Open();
                            cmd.ExecuteNonQuery();
                            this.label1.Text = "上传成功";
                    }
                    else                    {
                            this.label1.Text = "请选择正确的格式图片";
                    }
                }
            }
            catch (Exception ex)            {
                    Response.Write(ex.Message);
            }
        }
    }
}
    

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