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C# implements a small example of uploading photos to a physical path and saving the address to the database

黄舟

May 12, 2018 pm 02:12 PM

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：

C# implements a small example of uploading photos to a physical path and saving the address to the database

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(&#39;" + name + "&#39;,&#39;" + type + "&#39;,&#39;~\\excel" + name + "&#39;)";
                        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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