Upload.asp 5.2 KB

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  1. <%@ LANGUAGE = "VBSCRIPT" CODEPAGE = "65001"%>
  2. <%
  3. Response.Charset = "UTF-8" '指定输出网页编码
  4. Server.ScriptTimeOut = 5000 '脚本执行超时最大时限
  5. '温馨提示:
  6. ' 在flash的参数名upload_url中可自行定义一些参数(请求方式:POST),定义后在服务器端获取即可,比如可以应用到用户验证,文件的保存名等。
  7. ' 如下代码在上传接口Upload.asp中定义了一个user=xxx的参数:
  8. ' var swf = new fullAvatarEditor("swf", {
  9. ' id: "swf",
  10. ' upload_url: "Upload.asp?user=xxx"
  11. ' });
  12. ' 在本页即可用Upload.Form("user")获取xxx。
  13. ' 本示例未作极致的用户体验与严谨的安全设计(如用户直接访问此页时该如何,万一客户端数据不可信时验证文件的大小、类型等),只保证正常情况下无误,请阁下注意。
  14. '艾恩ASP无组件上传类 V13.01.16
  15. %>
  16. <!--#include file="Upload.asp.cls"-->
  17. <%
  18. '生成指定长度的随机码。
  19. Function CreateRandomCode(ByVal Length)
  20. Randomize
  21. Dim RandCode : RandCode = ""
  22. Dim RandChar : RandChar = "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z"
  23. Dim RandCharArray : RandCharArray = Split(RandChar, ",")
  24. Dim i
  25. For i = 1 To Length
  26. RandCode = RandCode & RandCharArray(Int(36 * Rnd))
  27. Next
  28. CreateRandomCode = RandCode
  29. End Function
  30. Function GetVirtualPath(ByVal path)
  31. Dim webRoot : webRoot = Server.MapPath("/")
  32. Dim physicalPath : physicalPath = Server.MapPath(path)
  33. GetVirtualPath = Replace(physicalPath, webRoot, "")
  34. GetVirtualPath = Replace(GetVirtualPath, "\", "/")
  35. End Function
  36. '取服务器时间+8位随机码作为部分文件名,确保文件名无重复。
  37. Dim FileName : FileName = Year(NowTime) & Right("0" & Month(NowTime), 2) & Right("0" & Day(NowTime), 2) & Right("0" & Hour(NowTime), 2) & Right("0" & Minute(NowTime), 2) & Right("0" & Second(NowTime), 2) & Left(Replace(Right(timer(), 2), ".", "") & "0", 2) & CreateRandomCode(8)
  38. Dim Msg '表示自定义的附加返回消息。
  39. Dim Success : Success = "false" '表示图片是否已上传成功。
  40. Dim SavePath : SavePath = "upload" '保存在服务器的虚拟路径
  41. Dim SourceUrl '表示原始图片的保存地址。
  42. DIM AvatarUrls '表示所有头像图片的保存地址,多个之间使用英文的逗号“,”分隔。
  43. Dim SuccessNum : SuccessNum = 0
  44. On Error Resume Next
  45. '建立上传对象
  46. Dim Upload
  47. Set Upload = new AnUpLoad
  48. Upload.Charset = "UTF-8" '设置字符集
  49. Upload.Exe = "*.bmp;*.jpg;*.gif;*.png;" '设置允许上传的文件类型
  50. Upload.SingleSize = 1024 * 1024 * 2 '设置单个文件的最大上传限制,按字节计算,该处为2MB
  51. Upload.GetData()
  52. If Upload.ErrorID > 0 Then
  53. Msg = Upload.Description
  54. Else
  55. '定义一个变量用以储存当前头像的序号
  56. Dim AvatarNumber : AvatarNumber = 1
  57. Dim i : i = 1
  58. '遍历所有文件域
  59. For Each F In Upload.Files(-1)
  60. Dim File
  61. Set File = Upload.Files(F)
  62. If File.IsFile Then
  63. '如果 file 域的名称是以__source(可在插件配置参数中自定义,参数名:src_field_name)打头,说明是原始图片,如果在插件中定义可以上传的话,可在此处理。
  64. If InStr(File.FormName, "__source") = 1 Then
  65. '保存的文件名,不包括扩展名
  66. File.UserSetName = "asp_source_" & FileName
  67. '保存的文件扩展名,不含点“.”
  68. File.Extend = "jpg"
  69. '当前头像基于原图的初始化参数(即只有上传原图时才会发送该数据),用于修改头像时保证界面的视图跟保存头像时一致,提升用户体验度。
  70. '修改头像时设置默认加载的原图url为当前原图url+该参数即可,可直接附加到原图url中储存,不影响图片呈现。
  71. Dim InitParams : InitParams = Upload.Forms("__initParams")
  72. SourceUrl = GetVirtualPath(SavePath & "/" & File.UserSetName & "." & File.Extend) & InitParams
  73. If File.SaveToFile(SavePath, -1, True) Then
  74. SuccessNum = SuccessNum + 1
  75. Else
  76. Msg = "原图片保存失败,错误信息:" & File.Exception '错误信息请参考同目录中的PDF文件
  77. End If
  78. '否则就是头像图片(file 域的名称:__avatar1,2,3...,可在插件配置参数中自定义,参数名:avatar_field_names)
  79. Else
  80. '保存的文件名,不包括扩展名
  81. File.UserSetName = "asp_avatar" & AvatarNumber & "_" & FileName
  82. '保存的文件扩展名,不含点“.”
  83. File.Extend = "jpg"
  84. If File.SaveToFile(SavePath, -1, True) Then
  85. SuccessNum = SuccessNum + 1
  86. AvatarUrls = AvatarUrls & """" & GetVirtualPath(SavePath & "/" & File.FileName & "." & File.Extend) & ""","
  87. AvatarNumber = AvatarNumber + 1
  88. Else
  89. Msg = "头像保存失败,错误信息:" & File.Exception '错误信息请参考同目录中的PDF文件
  90. End If
  91. End If
  92. Set File = Nothing
  93. End If
  94. Next
  95. End If
  96. '释放上传对象
  97. Set Upload = Nothing
  98. If Err.Number <> 0 Then Err.Clear
  99. If SuccessNum > 0 Then
  100. Success = "true"
  101. End If
  102. If AvatarUrls <> "" Then
  103. AvatarUrls = Left(AvatarUrls, Len(AvatarUrls) - 1)
  104. End If
  105. '返回上传结果(json)
  106. Response.Write "{""success"":" & Success & ", ""msg"":""" & Msg & """, ""sourceUrl"":""" & SourceUrl & """, ""avatarUrls"":[" & AvatarUrls & "]}"
  107. %>