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    <p>Omnipresent covered what you need in struts.xml. I'm adding an example with the Action as well:</p> <pre><code>InputStream excelStream String contentDisposition String documentFormat = "xlsx" String excel() { ServletContext servletContext = ServletActionContext.getServletContext() String filePath = servletContext.getRealPath("/WEB-INF/template/excel/mytemplate.${documentFormat}") File file = new File(filePath) Workbook wb = WorkbookFactory.create(new FileInputStream(file)) Sheet sheet = wb.getSheetAt(0) &lt;write to excel file&gt; ByteArrayOutputStream baos = new ByteArrayOutputStream() wb.write(baos) excelStream = new ByteArrayInputStream(baos.toByteArray()) contentDisposition = "filename=\"myfilename.${documentFormat}\"" return SUCCESS } String getExcelContentType() { return documentFormat == "xlsx" ? "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" : "application/vnd.ms-excel" } </code></pre> <p>I'm using the poi model: org.apache.poi.ss.usermodel.</p> <p>You can replace "xlsx" with "xls" if you want.</p> <p>struts.xml:</p> <pre><code>&lt;action name="myaction" class="com.example.MyAction" method="excel"&gt; &lt;result type="stream"&gt; &lt;param name="contentType"&gt;${excelContentType}&lt;/param&gt; &lt;param name="inputName"&gt;excelStream&lt;/param&gt; &lt;param name="contentDisposition"&gt;contentDisposition&lt;/param&gt; &lt;param name="bufferSize"&gt;1024&lt;/param&gt; &lt;/result&gt; &lt;/action&gt; </code></pre> <p>(add semicolons and stuff to translate to valid Java)</p>
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    1. POhow to return excel in Struts2 result?
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    1. COThis is kind of late, but I need help on the same issue. Firstly, In this case a file is first created on the server side and then streamed to the client side. Is it possible to directly stream the contents of the excel sheet to client side. Secondly which class have you used for the result-type 'stream'. Please help me out. Thanks!!
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    2. CO'stream' is org.apache.struts2.dispatcher.StreamResult which resides in struts2-core and is defined as a result-type in struts-default.xml (also in struts2-core).
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    3. CORegarding streaming, I have no clue. Might have something to do with bufferSize, maybe a lower value will stream more directly?
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