.net 将图片文件转换成流输出到浏览器

aspx 页面

 

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default6.aspx.cs" Inherits="Default6" %>



<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

    <title></title>

</head>

<body>

    <form id="form1" runat="server">

    <div>

        <img alt="" src="data:image/jpeg;base64,<%=Img%>" />

    </div>

    </form>

</body>

</html>

 

 

CS页面

 

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.Drawing;

using System.Drawing.Imaging;



public partial class Default6 : System.Web.UI.Page

{

    protected string Img { get; set; }

    protected void Page_Load(object sender, EventArgs e)

    {

        if (!IsPostBack)

        {

            string path = @"C:\Users\Administrator\Desktop\0314股票医生开机画面\p1.png";

            if (!string.IsNullOrEmpty(path))

            {

                System.Drawing.Image _Image = System.Drawing.Image.FromFile(path);

                System.IO.MemoryStream _ImageMem = new System.IO.MemoryStream();

                _Image.Save(_ImageMem, ImageFormat.Jpeg);

                byte[] _ImageBytes = _ImageMem.ToArray();

                Img = Convert.ToBase64String(_ImageBytes);

                //Response.Write(Img);

            }

        }

    }

}

 

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