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我正在尝试上传图片并将其存储在存在数据库中，但打开存储的图片时出现下一个错误：

Cannot open specified file: Could not recognize image encoding.

我已经尝试了下一个代码，对普通的 txt 文件进行了小幅调整，它工作正常，但不适用于图片。

图片.xhtml

<?xml-model href="http://www.oxygenxml.com/1999/xhtml/xhtml-xforms.nvdl" schematypens="http://purl.oclc.org/dsdl/nvdl/ns/structure/1.0"?>
<html xmlns="http://www.w3.org/1999/xhtml" 
    xmlns:ev="http://www.w3.org/2001/xml-events" 
    xmlns:xs="http://www.w3.org/2001/XMLSchema" 
    xmlns:xf="http://www.w3.org/2002/xforms" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <head>
        <title/>
        <xf:model>
            <xf:instance xmlns="">
                <data>
                    <image xsi:type="xs:base64Binary"/>
                </data>
            </xf:instance>
            <xf:submission id="save" action="save.xquery" method="post"/>
        </xf:model>
    </head>
    <body>
        <xf:upload ref="image">
            <xf:label>Upload Photo:</xf:label>
        </xf:upload>
        <br/>
        <xf:submit submission="save">
            <xf:label>Save</xf:label>
        </xf:submit>
    </body>
</html>

保存.xquery

xquery version "3.1";

declare option exist:serialize "method=xhtml media-type=text/html indent=yes";

let $login:=xmldb:login('xmldb:exist:///db/apps/places','admin','admin')

(: The small adjusment i refer is just to change file extension from .jpeg to .txt :)
return xmldb:store("/db/apps/places/",concat("pic",".jpeg"), util:base64-decode(request:get-data()//image))
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1 回答 1

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如果您想将图像存储到 eXist-db，您可能应该替换xmldb:store()为xmldb:store-as-binary().

于 2017-11-22T09:03:44.270 回答