After migration to struts 2.3.24, file upload still not supported for greater than 2gb
问题 Adding the following the to struts.xml in struts2.3.24: <constant name="struts.multipart.parser" value="jakarta-stream" /> <constant name="struts.multipart.maxSize" value="3147483648" /> For reference the upload works as follows in the jsp: <s:form id="uploadData" action="abc_UploadAction?method=Upload" namespace="xyz" validateFields="false" method="post" enctype="multipart/form-data"> For action mapping we use the concept of DMI. The action configuration is as follows: <action name="abc_*"