//在一个页面中添加image控件，后台指向一个新页面，在新页面获取图片的二进制流，再展现在页面上
<body>
<div class="pNavigation">
<div style="overflow: hidden;">
<img alt="" class="img_Navigation" src="/Style/Images/Default/pixel.gif" />当前位置：消防设备管理
>> 消防设备图纸查看
</div>
</div>
<form id="form1" runat="server">
<table id="table" cellpadding="0" cellspacing="0" border="0" style=" 100%;
margin: 0px;">
<tr>
<td align="center">
<img id="imgphoto" src="~/Style/Images/Photo/nopic.gif" runat="server" style="margin: 2px;
margin-left: 12px; height: 280px; 222px;" />
</td>
</tr>
</table>
</form>
</body>
protected void Page_Load(object sender, EventArgs e)
{
try
{
Model.LOGISTICS_BUILDINGEQUIPMENTPIC model = cBll.GetList(" where t.LYH='" + Request.QueryString["lyh"] + "' and t.LC='" + Request.QueryString["lc"] + "'", "").FirstOrDefault();
if (model != null)
{
this.imgphoto.Src = "ShowPhoto.aspx?lyh=" + Request.QueryString["lyh"] + "&lc=" + Request.QueryString["lc"] + "&r=" + new Random().Next().ToString(CultureInfo.InvariantCulture);
}
}
catch (Exception exception)
{
Log.fWriterLog("住校管理之床位安排查看页（学生信息查看）页面初始化异常：" + exception.Message, exception);
}
}
//新页面输出图片二进制流
/// <summary>
/// 获取图片
/// </summary>
/// <param name="lyh"></param>
/// <param name="lc"></param>
protected void GetShowPhoto(string lyh,string lc)
{
Model.LOGISTICS_BUILDINGEQUIPMENTPIC model = cBll.GetList(" where t.LYH='" + lyh + "' and t.LC='" + lc + "'", "").FirstOrDefault();
string basePath = Hzjg.Common.Config.ConfigManage.fGetAppConfig("SaveFilePath");
basePath = basePath.Substring(0, basePath.Length - 1);
byte[] byteImg = null;//图片流
Stream stream = null;
if (model != null)
{
//把文件转化为二进制流
string path = basePath + model.PICTUREPATH.Replace("/", "\");
byteImg = ConvertToBinary(path);
stream = new MemoryStream(byteImg);
}
else
{
FileStream f = new FileStream(Server.MapPath("~/Style/Images/Photo/nopic.jpg"), FileMode.Open, FileAccess.Read);
byteImg = new byte[f.Length];
f.Read(byteImg, 0, byteImg.Length);
f.Close();
stream = new MemoryStream(byteImg);
}
var img = (Bitmap)Image.FromStream(stream, false); //转换成Bitmap
Response.Buffer = false;
Response.ContentType = "image/jpg";
Response.AddHeader("Content-Disposition", "attachment;filename=photo.jpg"); //照片名称叫photo.jpg
Response.BinaryWrite(byteImg); //写入二进制流
HttpContext.Current.ApplicationInstance.CompleteRequest();
}
/// <summary>
/// 把文件转化为二进制流
/// </summary>
/// <param name="Path">文件路径</param>
/// <returns></returns>
public static byte[] ConvertToBinary(string Path)
{
FileStream stream = new FileInfo(Path).OpenRead();
byte[] buffer = new byte[stream.Length];
stream.Read(buffer, 0, Convert.ToInt32(stream.Length));
return buffer;
}
<body>
<div class="pNavigation">
<div style="overflow: hidden;">
<img alt="" class="img_Navigation" src="/Style/Images/Default/pixel.gif" />当前位置：消防设备管理
>> 消防设备图纸查看
</div>
</div>
<form id="form1" runat="server">
<table id="table" cellpadding="0" cellspacing="0" border="0" style=" 100%;
margin: 0px;">
<tr>
<td align="center">
<img id="imgphoto" src="~/Style/Images/Photo/nopic.gif" runat="server" style="margin: 2px;
margin-left: 12px; height: 280px; 222px;" />
</td>
</tr>
</table>
</form>
</body>
protected void Page_Load(object sender, EventArgs e)
{
try
{
Model.LOGISTICS_BUILDINGEQUIPMENTPIC model = cBll.GetList(" where t.LYH='" + Request.QueryString["lyh"] + "' and t.LC='" + Request.QueryString["lc"] + "'", "").FirstOrDefault();
if (model != null)
{
this.imgphoto.Src = "ShowPhoto.aspx?lyh=" + Request.QueryString["lyh"] + "&lc=" + Request.QueryString["lc"] + "&r=" + new Random().Next().ToString(CultureInfo.InvariantCulture);
}
}
catch (Exception exception)
{
Log.fWriterLog("住校管理之床位安排查看页（学生信息查看）页面初始化异常：" + exception.Message, exception);
}
}
//新页面输出图片二进制流
/// <summary>
/// 获取图片
/// </summary>
/// <param name="lyh"></param>
/// <param name="lc"></param>
protected void GetShowPhoto(string lyh,string lc)
{
Model.LOGISTICS_BUILDINGEQUIPMENTPIC model = cBll.GetList(" where t.LYH='" + lyh + "' and t.LC='" + lc + "'", "").FirstOrDefault();
string basePath = Hzjg.Common.Config.ConfigManage.fGetAppConfig("SaveFilePath");
basePath = basePath.Substring(0, basePath.Length - 1);
byte[] byteImg = null;//图片流
Stream stream = null;
if (model != null)
{
//把文件转化为二进制流
string path = basePath + model.PICTUREPATH.Replace("/", "\");
byteImg = ConvertToBinary(path);
stream = new MemoryStream(byteImg);
}
else
{
FileStream f = new FileStream(Server.MapPath("~/Style/Images/Photo/nopic.jpg"), FileMode.Open, FileAccess.Read);
byteImg = new byte[f.Length];
f.Read(byteImg, 0, byteImg.Length);
f.Close();
stream = new MemoryStream(byteImg);
}
var img = (Bitmap)Image.FromStream(stream, false); //转换成Bitmap
Response.Buffer = false;
Response.ContentType = "image/jpg";
Response.AddHeader("Content-Disposition", "attachment;filename=photo.jpg"); //照片名称叫photo.jpg
Response.BinaryWrite(byteImg); //写入二进制流
HttpContext.Current.ApplicationInstance.CompleteRequest();
}
/// <summary>
/// 把文件转化为二进制流
/// </summary>
/// <param name="Path">文件路径</param>
/// <returns></returns>
public static byte[] ConvertToBinary(string Path)
{
FileStream stream = new FileInfo(Path).OpenRead();
byte[] buffer = new byte[stream.Length];
stream.Read(buffer, 0, Convert.ToInt32(stream.Length));
return buffer;
}