How to export data in a file(txt , xls etc) from JSP ?

STEP 1. Make a link in JSP

<li>

 <a href="export_perform.action" mce_href="export_perform.action">

    Export file

  </a>

</li>

STEP 2. Define the action in Struts.xml with input name property

<action name="export_*" method="{1}" class="com.actions.ExportAction">

  <result name="download" type="stream">

    <param name="contentType">application/octet-stream</param>

    <param name="inputName">fileInputStream</param>

    <param name="contentDisposition"> 

         attachment;filename="fileABC.txt" 

    </param>

    <param name="bufferSize">1024</param>

</result>

</action>

STEP 3. Make an action method in Action Class (ExportAction.java)

FileInputStream fileInputStream;

// getter and setter of fileInputStream property

public String execute() {

  // Generate and write to file

  String filePath = "C:\\abc.txt";

  FileWriter fileWriter;

  try {

fileWriter = new FileWriter(new File(filePath));

BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);

bufferedWriter.write("content line-1");

bufferedWriter.newLine();

bufferedWriter.write("content line-2");

  } catch(Exception e) { }

    bufferedWriter.flush();

    fileWriter.flush();

    bufferedWriter.close();

    fileWriter.close();

    // Set the stream in property to be downloaded

  try {

    fileInputStream = new FileInputStream(new File(filePath));

  } catch (FileNotFoundException e) {

    e.printStackTrace();

  } catch (IOException e) {

    e.printStackTrace();

  }

  return "download";  // return the stream result

}