Code for Browsing to File to Upload

I've created a JSP for browsing to the file to upload. And I've written some controllercode for creating the form and retrieving the file, it then reads the file and wites it line by line to the console window. Hopefully this code helps a bit.

<%@ taglib uri="/WEB-INF/tld/expresso.tld" prefix="expresso" %>
<%@ taglib uri="/WEB-INF/tld/expresso-html.tld" prefix="html" %>
<%@ taglib uri="/WEB-INF/tld/expresso-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/tld/expresso-logic.tld" prefix="logic" %>

<html>

<head>
</head>

<body text="#ffff00" bgcolor="#000000">

<expresso:ErrorTag />
<p>

<center>
<html:form action="/ExcelUploadController.do" method="POST" enctype="multipart/form-data">
<table>
        <tr>
                <td align="right"><expresso:LabelTag name="File" type="input"/></td>
                <td align="left"><expresso:InputTag name="File"/></td>
        </tr>
        <tr>
                <td align="center" colspan="2"><expresso:TransitionTag name="result" value="Upload"/></td>
        </tr>
</table>
</html:form>
</center>

</p>
</body>
</html>

And this is the Code for My Controller

import com.jcorporate.expresso.core.controller.*;
import com.jcorporate.expresso.core.controller.session.*;
import com.jcorporate.expresso.core.dbobj.DBObject;
import com.jcorporate.expresso.core.dbobj.MultiDBObject;
import com.jcorporate.expresso.core.dbobj.SecuredDBObject;
import com.jcorporate.expresso.core.dbobj.Schema;
import com.jcorporate.expresso.core.db.DBException;
import com.jcorporate.expresso.core.db.DBConnection;
import com.jcorporate.expresso.core.db.DBConnectionPool;
import com.jcorporate.expresso.core.dbobj.ValidValue;
import com.jcorporate.expresso.services.dbobj.SchemaList;

import java.util.ArrayList;
import java.util.Vector;
import java.util.Enumeration;
import java.io.*; //for file I/O

public class ExcelUploadController extends DBController
{

    private String thisClass=ExcelUploadController.class.getName()+".";

    public ExcelUploadController()
    {

super();

addState(new State("prompt", "Prompt for Uploading Excel file"));

addState(new State("result", "Result of Uploading"));

        setInitialState("prompt");
    }

    public String getTitle()
        {

        return ("Excel Upload Controller");
    }

    protected ControllerResponse runPromptState(ControllerRequest myRequest, ControllerResponse myResponse )
        throws ControllerException
    {

//Create the box for uploading the file

Input filePrompt = new Input("File");

filePrompt.setLabel("File to import :");

filePrompt.setAttribute("file", "");

filePrompt.setType("file");

myResponse.add(filePrompt);

Transition uploadButton = new Transition("result", this);

myResponse.add(uploadButton);

return myResponse;

}

protected ControllerResponse runResultState(ControllerRequest myRequest, ControllerResponse myResponse )

throws ControllerException
{

if (myRequest.isFileParameter("File"))

{

try

{

File file = new File(myRequest.getFileName("File"));

BufferedReader br = new BufferedReader(new FileReader(file));

String line = null;

while ((line = br.readLine()) != null)

{

System.out.println(line);

}

br.close();

}

catch(Exception e)

{

System.out.println(e.getMessage());

}

return myResponse;

}

Code for Browsing to File to Upload

Here is the code for creating a JSP form for uploading a document to your application using Expresso.

Version:

Expresso 4.x

Author:

Jan Moons

Introduction

Here is My JSP Code

And this is the Code for My Controller