从 Access 2007 导出 XML（base64 附件）

发布于 2024-11-10 06:39:14 字数 2958 浏览 3 评论 0原文

从最新版本的 Access (2007/2010) 开始，可以向行添加附件。我有这样一个包含成员及其照片的数据库，但我想导出它们（包括照片）并将它们用于新的网络应用程序。我使用 Access 2007 进行了 XML 导出。我附加的照片在 XML 导出中进行了编码。

请在下面找到 smiley.jpg 文件的示例，我已将其附加到数据库中的随机行中。（原始文件 smiley.jpg 您可以在这里找到：http://img812.imageshack。 us/img812/8248/smileyq.jpg）

<Foto>
<FileData>FAAAAAEAAAAEAAAAagBwAGcAAAD/2P/gABBKRklGAAEBAQBkAGQAAP/bAEMAAwIC
AwICAwMDAwQDAwQFCAUFBAQFCgcHBggMCgwMCwoLCw0OEhANDhEOCwsQFhARExQV
FRUMDxcYFhQYEhQVFP/bAEMBAwQEBQQFCQUFCRQNCw0UFBQUFBQUFBQUFBQUFBQU
FBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFP/AABEIACgAKAMBIgAC
EQEDEQH/xAAbAAACAgMBAAAAAAAAAAAAAAAABgUHAQgJA//EADIQAAIABAMFBgYC
AwAAAAAAAAECAwQFEQAGEgcTFSExCBRRYYGRCSIkMkGxM3GCodH/xAAYAQADAQEA
AAAAAAAAAAAAAAAEBQgHBv/EACgRAAIBAwMDBAIDAAAAAAAAAAECEQADBAUhMQYS
QQciYYETURRxkf/aAAwDAQACEQMRAD8A6nxoyS8Mu5soxAz1VnI9xBPd4fiBdj64
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2LhWstMlavPq33CO/tqNsQGYMv5U2nU+Xh1qj0vMsnIzpiwUqEqkwkGZguyFlDgg
OrBluPMYlNodBVp12imOslO21NLx3gsHFrjWhDC9gevPmOmKRg54idngvR80S802
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7xYlUzJNQXgJU0Uhu6ySuAzo5ADx7BdGpULM2pM2/i5+QzNkq1u1PuJBA2/uAW57
V5J480Z3IONzV0St+P0zT92/T2uL/wCsGPfZ3l9EnUeFv2k5LUEaYjvGdnN+RdyW
NrnqeXIdMGK49HtOvYehXL9wELdclZ2lQAJ+yD/lIdQcNdAHgVYU9IwKlKvLzCCJ
Cccwf2PPCNUMm1Gmuxk/rZf8C4DgeYPI+ntgwY7vqjo/Sep7U56HvUbOphgOYmCC
Pggx4ihrGRcsn2mkYbI8vCrcQGz2liqatffODQt7q8d5ovfzvh5p+TajUnUzv0Uv
+VuC5HkOg9fbBgxknTvp1o2bktczGuXRb4VmEfcAGPgEUdey7irCwJp6kZGDTpVJ
eXQQ4SCwA/Z88GDBikbVpLKLatKFVRAA2AA4AH6pQSSZNf/Z
</FileData>
<FileName>smiley.jpg</FileName>
<FileType>jpg</FileType>
</Foto>

它似乎是用base64编码的，但是当我尝试使用PHP函数对其进行解码时base64_decode()，我没有得到有效的输出。我在 XSD 文件中发现了一些附加数据，该文件是在 Access 中进行 XML 导出时自动生成的。那里似乎指的是base64，所以我不知道出了什么问题。

<xsd:element name="FileData" minOccurs="0" od:jetType="oleobject" od:sqlSType="image">
<xsd:simpleType>
<xsd:restriction base="xsd:base64Binary">
<xsd:maxLength value="1476395008"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:element>

我尝试了以下代码，以恢复图像（$data 填充了 XML 导出的编码内容）：

<?php
header('Content-Type: image/jpeg');
echo base64_decode($data);
?>

我查看了几个网站，但找不到此问题的解决方案。看来Access也在压缩数据，因为不可能恢复原始文件。我希望 StackOverflow 上有人能解决这个问题！

主要目标是出口约。来自 Access 2007 的 2500 名成员（附有照片）。数据可以轻松导出，但由于照片的存在，使得导出变得复杂。

原文

Since the latest versions of Access (2007/2010) it's possible to add attachments to rows. I have such a database with members and their photos, but i would like to export them (including photos) and use them for a new webapplication. I have made a XML-export with Access 2007. The photos which i have attached are encoded in the XML export.

Please find below an example of the file smiley.jpg, which i have attached in a random row in my database.
(The original file smiley.jpg you may find back here: http://img812.imageshack.us/img812/8248/smileyq.jpg)

<Foto>
<FileData>FAAAAAEAAAAEAAAAagBwAGcAAAD/2P/gABBKRklGAAEBAQBkAGQAAP/bAEMAAwIC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</FileData>
<FileName>smiley.jpg</FileName>
<FileType>jpg</FileType>
</Foto>

It seems to be encoded with base64, but as soon as i try to decode it using the PHP function base64_decode(), i don't get a valid output back. I have found some additional data back in the XSD-file, which is automatically generated when you make an XML-export in Access. There it seems to refer to base64, so i don't know what's going wrong.

<xsd:element name="FileData" minOccurs="0" od:jetType="oleobject" od:sqlSType="image">
<xsd:simpleType>
<xsd:restriction base="xsd:base64Binary">
<xsd:maxLength value="1476395008"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:element>

I have tried the following code, to get the image back ($data is filled with the encoded stuff from the XML-export):

<?php
header('Content-Type: image/jpeg');
echo base64_decode($data);
?>

I have looked on several websites, but i can't find a solution for this issue. It seems that Access is also compression the data, because it's impossible to get the original file back. I hope someone on StackOverflow will have a solution for this issue!

The main goal is to export approx. 2500 members (with photos attached) from Access 2007. The data can be exported easily, but it's all about the photos which make it complicated.

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