纯属个人所见,请大家批评指点。
btnUpLoad Button按钮
fileUp FileUpload控件
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using System;
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using System.Data;
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using System.Configuration;
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using System.Collections;
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using System.Web;
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using System.Web.Security;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Web.UI.WebControls.WebParts;
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using System.Web.UI.HtmlControls;
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public partial class test1 : 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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}
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protected void btnUpLoad_Click(object sender, EventArgs e)
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{
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string fileUpName = fileUp.PostedFile.FileName;
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//获得文件全路径名。
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if (fileUpName=="")
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{
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Response.Write("<script language=javascript> window.alert(\"请选择文件后再上传!\")</script>");
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}
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//判断是否选择文件
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else
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{
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string fileName = fileUpName.Substring(fileUpName.LastIndexOf("\\") + 1);
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//获得路径最后一个“\”后的文件名。
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string type = fileUpName.Substring(fileUpName.LastIndexOf(".") + 1);
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//获得文件名中最后一个“.”后的文件后缀名
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if (type == "jpg" || type == "gif" || type == "bmp")
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{
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int x = fileUp.PostedFile.ContentLength;
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//获得文件的大小。
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string y;
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if (x < 1024)
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{
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y = "B";
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}
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else
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{
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x = x / 1024;
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y = "KB";
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}
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Label1.Text = "你上传的文件名是:" + fileName + "<br>文件后缀名:" + type + "<br>文件大小为:" + x + y + "<br>服务器绝对路径:E:\\web\\up\\" +a;
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fileUp.PostedFile.SaveAs("E:\\web\\up\\" + a);
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//用PostedFile的SaveAs方法将文件写入指定路径。
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imgUp.ImageUrl = "E:\\web\\up\\" + a;
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}
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else
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{
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Response.Write("<script language=javascript> window.alert(\"你选择图片的文件名有误!\")</script>");
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}
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}
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}
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}
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