我正在使用 WSO2 EI 文件连接器将图像下载到本地文件夹，图像已成功下载，但无法查看。有人请帮助我吗？
注意： Bae64 来自 API，此处未包含。base64 内容仅是正确的，因为我可以通过使用base64 到图像转换器从这个 base64 中获取准确的图像，在axis2.xml 文件中添加如下。
<messageFormatter contentType="application/octet-stream" class="org.apache.axis2.format.BinaryFormatter"/>
<messageBuilder contentType="application/octet-stream" class="org.apache.axis2.format.BinaryBuilder"/>
代码片段：
<sequence name="DownloadImageFileSequnce" trace="disable" xmlns="http://ws.apache.org/ns/synapse">
<log level="custom">
<property name="===DownloadImageFileSequnce" value="called=="/>
</log>
<property value="D:\Test\CarSalesStockImages" name="PATH"/>
<property expression="get-property('StockNo')" name="FOLDERNAME"/>
<property expression="get-property('eachImageName')" name="FILENAME"/>
<property expression="get-property('image_val')" name="CONTENT"/>
<!-- <property name="messageType" value="application/octet-stream" scope="axis2"/> -->
<property expression="fn:concat('file://',$ctx:PATH,'/',$ctx:FOLDERNAME,'/',$ctx:FILENAME)" name="source"/>
<log level="custom">
<!-- <property name="===CONTENT===" expression="get-property('CONTENT')"/> -->
<property name="===PATH===" expression="get-property('PATH')"/>
<property name="===FOLDERNAME===" expression="get-property('FOLDERNAME')"/>
<property name="===FILENAME===" expression="get-property('FILENAME')"/>
<property name="===source===" expression="get-property('source')"/>
</log>
<fileconnector.isFileExist>
<source>{$ctx:source}</source>
</fileconnector.isFileExist>
<property expression="json-eval($.fileExist)" name="exists" type="BOOLEAN"/>
<filter xpath="$ctx:exists">
<then>
<fileconnector.append>
<destination>{$ctx:source}</destination>
<inputContent>{$ctx:CONTENT}</inputContent>
</fileconnector.append>
<payloadFactory media-type="json">
<format>{"status":"File updated"}</format>
<args/>
</payloadFactory>
<log level="custom">
<property name="==Response==" expression="json-eval($.)"/>
</log>
</then>
<else>
<fileconnector.create>
<source>{$ctx:source}</source>
<inputContent>{$ctx:CONTENT}</inputContent>
</fileconnector.create>
<payloadFactory media-type="json">
<format>{"status":"File created"}</format>
<args/>
</payloadFactory>
<log level="custom">
<property name="==Response==" expression="json-eval($.)"/>
</log>
</else>
</filter>
</sequence>
我通过使用 vfs 而不是 wso2 文件连接器找到了解决方案。
<?xml version="1.0" encoding="UTF-8"?>
<sequence name="DownloadImageFileSequnce" trace="disable" xmlns="http://ws.apache.org/ns/synapse">
<log level="custom">
<property name="===DownloadImageFileSequnce" value="called=="/>
</log>
<property name="PATH" scope="default" type="STRING" value="D:\Test\CarSalesStockImages"/>
<property expression="get-property('StockNo')" name="FOLDERNAME" scope="default" type="STRING"/>
<property expression="get-property('eachImageName')" name="FILENAME" scope="default" type="STRING"/>
<property expression="get-property('image_val')" name="CONTENT" scope="default" type="STRING"/>
<payloadFactory media-type="xml">
<format>
<ns:binary xmlns:ns="http://ws.apache.org/commons/ns/payload">$1</ns:binary>
</format>
<args>
<arg evaluator="xml" expression="$ctx:CONTENT"/>
</args>
</payloadFactory>
<script language="js"><![CDATA[var binaryNode =
mc.getEnvelope().getBody().getFirstElement().getFirstOMChild();
binaryNode.setBinary(true);]]></script>
<!-- <property expression="concat($ctx:PATH,'/',$ctx:FOLDERNAME,'/',$ctx:FILENAME)" name="transport.vfs.ReplyFileName" scope="transport" type="STRING"/> -->
<property expression="concat('vfs:file:///',$ctx:PATH,'/',$ctx:FOLDERNAME,'/',$ctx:FILENAME)" name="localpath"/>
<header name="To" expression="get-property('localpath')"/>
<log level="custom">
<property expression="$ctx:localpath" name="==ReplyFileName==="/>
</log>
<property name="OUT_ONLY" scope="default" type="STRING" value="true"/>
<property action="remove" name="REST_URL_POSTFIX" scope="axis2"/>
<property name="messageType" scope="axis2" type="STRING" value="application/octet-stream"/>
<call/>
<payloadFactory media-type="json">
<format>
{
"status": "success",
"statusMessage" : "Image downloaded"
}
</format>
<args/>
</payloadFactory>
<log level="custom">
<property expression="json-eval($.)" name="Response"/>
</log>
</sequence>
本文收集自互联网，转载请注明来源。
如有侵权，请联系 [email protected] 删除。
我来说两句