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Editorial Team
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Asked: 2026-05-13T17:58:46+00:00

I would like to send large files from the server to the client using

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I would like to send large files from the server to the client using MTOM and Spring WS. I realize that this isn’t the best approach for this type of thing, but it’s a requirement. I have MTOM set up and it works great for small files around 50mb. I am experiencing out of memory errors for larger files and by changing different heap space sizes, I can send slightly larger files, but nothing close to 1gb. 1GB is my test case for this. How can I stream or chunk the MTOM service from the server to the client? I am using Java 6 update 17, Tomcat 6, and Spring WS 1.5.7 with the SaajSoapMessageFactory.

I found an example of streaming with jax-ws, but I’m not sure how to incorporate this into a Spring WS endpoint.

Optimizing Binary Data Transmission Using MTOM/XOP

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  1. Editorial Team

    Yesterday, I am having the same problem with uploading large files. Finally I was able to find the solution for that. Spring WS has an customized Axiom message factory called org.springframework.ws.soap.axiom.AxiomSoapMessageFactory which can use file instead of in memory while uploading large files. The only change to do in your configuration is define the bean with your custom properties.

    <bean id="messageFactory" class="org.springframework.ws.soap.axiom.AxiomSoapMessageFactory">
    <property name="payloadCaching" value="false" />
    <property name="attachmentCaching" value="true" />
    <property name="attachmentCacheThreshold" value="1024"/>
</bean>

    Once you have this configuration and Axiom classes available in classpath, Spring-ws automatically uses temporary files to piggy back large document uploads.

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