ule子http:outbound-endpoint + multipart/form-data [英] Mule http:outbound-endpoint + multipart/form-data
问题描述
我正在尝试调用一个预期会收到multipart/form-data的rest服务,与此同时我遇到了一些问题.
I'm trying to call a rest service that expects to receive a multipart/form-data and I am facing some issues with this.
经过一段时间的搜索,我了解到必须将有效负载移动到出站附件,并将有效负载设置为null.
After a while searching, I've understood that I had to move the payload to an outbound attachment and set the payload to null.
<expression-component><![CDATA[
ds = new org.mule.message.ds.StringDataSource(formdata,'payload','multipart/form-data');
dh = new javax.activation.DataHandler(ds);
message.outboundAttachments['payload'] = dh;
]]></expression-component>
<set-payload value="#[null]" />
我也这样做了,但是出现了错误:
I've also done that, but got the error:
我收到一个内容类型错误: 消息:当期望"multipart/form-data"时,消息包含MIME类型"text/xml".
I received a content-type error: Message : Message contained MIME type "text/xml" when "multipart/form-data" was expected.
不好.:我必须使用expression-component,因为如果我仅使用set-attachment,则会收到名称一定不能为null"错误.
Obs.: I had to to use expression-component, because if I just use set-attachment I receive a " name must not be null" error.
由于这里的问题是内容的类型,所以我也尝试了转换消息属性.
Since the issue here was the type of the content, I also tried transforming the message properties.
<message-properties-transformer overwrite="true" doc:name="Message Properties">
<add-message-property key="Content-Type" value="multipart/form-data;charset=utf-8"/>
</message-properties-transformer>
此后,我从其余服务处收到400错误.
After that, I received a 400 error from the rest service.
我还尝试将多部分中的每个属性(键值)放在单独的附件中作为内容类型:文本/纯文本,此处存在相同问题.
I've also tried to put each atribute (key-value) from the multipart in separated attachments as content type: text/plain, same issue here.
我想我的问题是如何正确附加内容,以便成功地将内容类型转换为multipart/form-data.
I guess my problem is how to attach correctly, so that the content type is transformed to multipart/form-data with success.
感谢您的帮助.谢谢.
http出站呼叫代码:
http outbound call code:
<enricher source="#[message.inboundProperties['http.status']]" target="#[variable:out]" doc:name="Message Enricher">
<http:outbound-endpoint exchange-pattern="request-response" method="POST" host="${jbpm.host}" port="${jbpm.port}" path="#[address]" doc:name="HTTP" mimeType="multipart/form-data">
<response>
<object-to-string-transformer />
</response>
</http:outbound-endpoint>
</enricher>
<logger message="RESPONSE STATUS - #[variable:out]" level="INFO" doc:name="Logger"/>
<set-payload value="needAXml" doc:name="Set Payload"/>
<mulexml:object-to-xml-transformer doc:name="Object to XML"/>
<mulexml:xslt-transformer maxIdleTransformers="2" maxActiveTransformers="5" doc:name="XSLT">
<mulexml:xslt-text>
<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:bpmsws="http://www.arizona.com.br/esb/bpmsws/service/v1_0_0/"
xmlns:bpms="http://www.arizona.com.br/bpms/core/v1_0_0/">
<xsl:param name="responseStatus"/>
<xsl:template match="/">
<bpmsws:httpPostResponse>
<status xmlns=""><xsl:value-of select="$responseStatus" /></status>
</bpmsws:httpPostResponse>
</xsl:template>
</xsl:stylesheet>
</mulexml:xslt-text>
<mulexml:context-property key="responseStatus" value="#[variable:out]"/>
</mulexml:xslt-transformer>
推荐答案
下面显示了如何发布具有两个字段值的多部分实体:
The following shows how to POST a multipart entity with two field values:
<expression-component><![CDATA[
ds = new org.mule.message.ds.StringDataSource('key1','value1','text/plain');
dh = new javax.activation.DataHandler(ds);
message.outboundAttachments['key1'] = dh;
ds = new org.mule.message.ds.StringDataSource('key2','value2','text/plain');
dh = new javax.activation.DataHandler(ds);
message.outboundAttachments['key2'] = dh;
]]></expression-component>
<set-payload value="#[null]" />
<http:outbound-endpoint exchange-pattern="request-response"
method="POST" address="http://localhost:8082/path" />
请注意不要为contentType
指定一个值,否则Mule将无法在POST中提供多部分边界.
Be careful to not specify a value for contentType
otherwise Mule will not be able to provide the multi-part boundary in the POST.
如果出站范围内恰好具有Content-Type
消息属性,请使用以下方法将其删除:
If you happen to have a Content-Type
message property in the outbound scope, remove it with:
<remove-property propertyName="Content-Type" />
在HTTP出站终结点之前.
before the HTTP outbound endpoint.
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