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PORead the Excel value using JSF
 

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  1. PORead the Excel value using JSF
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    <p>I need to read an Excel file and display its content. I have a backing bean code which reads a particular Excel file and displays its content in the console. I have to display the contents inside a text editor. Using PrimeFaces I have got the <code>&lt;p:fileUpload&gt;</code> and <code>&lt;p:editor&gt;</code>. </p> <p>Here's the bean: </p> <pre><code>public void handleFileUpload(FileUploadEvent event) { FacesMessage msg = new FacesMessage("Succesful", event.getFile().getFileName() + " is uploaded."); FacesContext.getCurrentInstance().addMessage(null, msg); } public String convertjava(String b) { try { FileInputStream file = new FileInputStream(new File("")); // Get the workbook instance for XLS file HSSFWorkbook workbook = new HSSFWorkbook(file); // Get first sheet from the workbook HSSFSheet sheet = workbook.getSheetAt(0); // Iterate through each rows from first sheet Iterator&lt;Row&gt; rowIterator = sheet.rowIterator(); while (rowIterator.hasNext()) { Row row = rowIterator.next(); // For each row, iterate through each columns Iterator&lt;Cell&gt; cellIterator = row.cellIterator(); while (cellIterator.hasNext()) { Cell cell = cellIterator.next(); switch (cell.getCellType()) { case Cell.CELL_TYPE_BOOLEAN: cell.getBooleanCellValue(); break; case Cell.CELL_TYPE_NUMERIC: cell.getNumericCellValue(); break; case Cell.CELL_TYPE_STRING: cell.getStringCellValue(); break; } } System.out.println(""); } file.close(); FileOutputStream out = new FileOutputStream(new File("")); workbook.write(out); out.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { System.out.println("error"); } } </code></pre> <p>Here's the Facelet:</p> <pre><code>&lt;h:body&gt; &lt;h:form enctype="multipart/form-data"&gt; &lt;p:fileUpload fileUploadListener="#{uploadBean.handleFileUpload}" mode="advanced" update="display" auto="true" sizeLimit="10000000" allowTypes="/(\.|\/)(xls|xlsx)$/" /&gt; &lt;p:growl id="display" showDetail="true" /&gt; &lt;h:commandButton action="#{uploadBean.convertjava}" value="Excel Report" /&gt; &lt;/h:form&gt; &lt;br /&gt; &lt;/h:body&gt; </code></pre> <p>Here I am totally blank that how to call that <code>convertJava()</code> method through JSF tags and display the read excel values inside an text editor. </p>
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