I need to get the html in string when i hit the hit the jsp in servlets basically i need to put the output of jsp in pdf file when i hit one link i need to download that data in pdf file. I am using itextpdf.
//Get the output stream for writing PDF object OutputStream outStream=pResponse.getOutputStream(); ByteArrayOutputStream baosPDF = new ByteArrayOutputStream();
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I need to convert the sample download.jsp to html so that i can parse
I have a requirement to download the data from DB to CSV/Excel. What I did is retrieving all the records from DB and store in the List and pass that list to the jsp page. In JSP page, I am using the below setting to download it to CSV/EXCEL.
It was working fine. But I have an issues in it. Excel is capable of storing it only 65,536 rows. Even all the data getting downloaded to CSV/excel (> 65,536), while saving I am getting error from excel saying that it can't save more than 65,536 rows and the below data won't be saved.
This workbook contains data in cells outside of the row and column limit of the selected file format.
Data beyond 256 (IV) columns by 65,536 rows will not be saved. Formula references to data in this region will return a #REF! error.
I am not opt for POI apache third party at this point of time. Is it possible to download it in other sheets if it exceeds the max limit.
Example: Having data of around 100,000.
Download 65,536 - Sheet 1 Remaining in Sheet 2,3.. of the same excel.
I am trying to export a DB record to an excel sheet. Below is the code which I tried. I am not getting any error but still only the first record of the table is getting inserted into the excel sheet. But when I try printing, I prints all the records. Below is the code I did to insert records.
I have a JSP and Java program which will read data from Excel and add them dynamically to create table.My requirement is i should able to edit the columns what ever the data that was fetched from Excel and export those contents to another excel file.This should happen on clicking a button, i mean to exporting the contents of the table.
As of now am using icefaces 1.8.2 provided tags for downloading data into excel sheet where i can download all the data from a data table. But now the requirement is like need to download the data into excel sheet based on values passed from UI as parameters to the action class method.
Is there a way to inform the Entity Manager or force the JPA provider to reload data from the database? The scenario could be data being updated by a store procedure or direct SQLPlus maintenance, without restarting the Application Server, the JPA need to load the newly updated data from the database.
I think the current JPA API is not enough. The void refresh(java.lang.Object entity) from EntityManager need to pass in the Entity object, I will like to know how to refresh the entire JPA Entity data after the physical table data being update from backend.
I have a class that do a soap request to a web service , the response is containing a base64 string repressing a file content , how can i send this string to a servlet (maybe any other way) to send it to the user as a downloaded file .
I have written a code to download .csv file with records from DB.
To download records i am uploading a .CSV file containing telephone number.
After downloading the .CSV file page is not getting refreshed.
Below is the code snippet i am using,where i am setting response content type as test/csv.
ServletOutputStream op = resp.getOutputStream(); // Set content type of output resp.setContentType("text/csv"); resp.setHeader("Content-Disposition", "attachment; filename="test""); op.flush(); op.close();
How that page will get refreshed after csv file download or after response.
JFrame parentFrame = new JFrame(); JFileChooser fileChooser = new JFileChooser(); fileChooser.setDialogTitle(txtPushCode.getText()); int userSelection = fileChooser.showSaveDialog(parentFrame); if (userSelection == JFileChooser.APPROVE_OPTION) {
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But as you can see, it downloads only to "C:android empcoloricon.png". I want to download it to path where I chose in FileChooser with the name and extension I choose. In short, how can I use dynamic file path names in where ever I want in my applications?
If I change the servlet and have "request.getRequestDispatcher("/pages/ViewCompletedWWDocs.jsp").forward(request, response);" un commented, I get exception "java.lang.IllegalStateException: Cannot forward a response that is already committed".
I would like to understand how does multipart/form-data works during file upload scenario's, Does it chunks the data from client to server while transferring the files ?
I am developing my college's project in JSP using jquery to open a magnific popup when user clicks on a link and the in the magnific Popup must be fetched from Mysql and i tried two approaches for this:
1. magnific Popup type is ajax here i passed the variable value in the link of href (after '?') to another JSP page where connection to database is created and queries are written in JSTL to fetch data and show this in magnific Popup .. But i failed in this approach, don't know in another JSP page the data without having database connection is loaded in the magnific Popup easily but not database data..
2. magnific Popup type inline here i need to pass the variable value in the same page between different tags..
I've recently tried to write a file parser for the .x3d file type as it's one of the few 3d model types I can find written in easy to understand (and interpret) English. While it technically does work (or what I have so far), the issue is that it takes far too long (17 minutes) to parse just a part of the file (the vertices of the model).This is the code for the object itself:
import java.io.*; import com.sun.j3d.utils.geometry.*; import javax.media.j3d.*; import javax.vecmath.*; public class ModelLoader { BranchGroup object = new BranchGroup(); BufferedReader reader; String line = "start";
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Anyway, here are some observations I've made about the file:
-The line in the file itself that contains all the vertices is all one giant string according to the file. -There are apparently 18,000 vertices in all (according to the command at line 18). -Unless Netbeans automatically terminates infinite loops after a certain amount of time, it is most definitely NOT an infinite loop as I have seen the program terminate on its own (after 17 minutes, though).
I had a theory that maybe organizing each vertex into its own line and then having the program switch to the next line when it's done reading that vertex might make the program run faster, but I'm not sure why it would, so I thought I'd come here in case that theory turned out to be a dead end.
We have a website used for downloading large files as large as 6gb and sometimes larger. We have all files in FTP server. The websit is JSP/Servlet /Tomcat combination. Below is code sample. I need a solution to increase the download speed. I understand it is bound to network bandwidth but are the steps that we need to take while we have such large files.I read about multipart downloads,gunzip streaming.
//first connect to FTP server and login and keep connection Calendar cal=Calendar.getInstance(); startTime=cal.getTime(); fis=ftp.downloadFile(ftpclient,separator+resourceID); response.setContentType("application/*"); response.setHeader("Content-Disposition", "attachment; filename="" + downloadFileName + "";"); byte[] bytes = new byte[1024];
To deploy my project into %TOMCAT_HOME%webapps folder. Right click on Project ->Export-> War File Project Name: Hello Destination: D:Program FilesApache Software FoundationTomcat 6.0webappsHello.war
Result found in web browser:
HTTP Status 404 - /Hello/first And Hello.war file is not found in webapps folder too after exporting as .war. I am using Apache tomcat 6.0.37, eclipse 3.7.2 release, tomcat plugin :com.sysdeo.eclipse.tomcat_3.3.0
I am trying to get the excel spreadsheet data and converting it in someway to java. I'm looking for something that will print out the java code itself that way I can embed it into future projects.
