Question

I want to develop a web-application with a fileupload mechanism using struts2 with fileUpload which behaves strange and I can’t figure out why.

I configured the fileupload mechanism in the struts.xml:

<package name="com.actions" namespace="/" extends="struts-default">
<action name="excelupload" class="com.actions.FileuploadAction">
    <interceptor-ref name="fileUpload">
            <param name="maximumSize">10000000</param>
    </interceptor-ref> 
        <result name="success">/fileupload.jsp</result>
        <result name="input">/fileupload.jsp</result>

    </action>
</package>

The corresponding JSP:

<s:form action="excelupload" method="post" enctype="multipart/form-data">
    <s:file name="excelfile" label="file" />
    <s:submit name="upload" value="upload" align="center" />
</s:form>

The corresponding Action:

public class FileuploadAction extends ActionSupport{
    File excelfile;
    public File getExcelfile() {
    return excelfile;
}

public void setExcelfile(File excelfile) {
    this.excelfile = excelfile;
}
    public String execute(){
        System.out.println(excelfile.getName());
        return SUCCESS;
    }
}

When I upload a small file everything works fine. But when I try to upload a file that is larger than 2 MB the application throws the following exception:

org.apache.commons.fileupload.FileUploadBase$SizeLimitExceededException: the request
was rejected because its size (3244109) exceeds the configured maximum (2097152)

To fix this issue I tried to add a struts-default.properties with

struts.multipart.maxSize=20097152

to the root of my the app’s class path.

That fixed the exception but now excelfile is always null, regardless how large the file is.

Does anybody know what I am doing wrong?

EDIT: For deployment I use Tomcat
EDIT: Added missing getter and setter methods.

Answer 1

I could fix this issue by removing

<interceptor-ref name="fileUpload">
        <param name="maximumSize">10000000</param>
</interceptor-ref>

from the struts.xml.