printwriter « Development « JSP-Servlet Q&A

1. Using PrintWriter and OutputStream

I am creating a project with struts and I have a problem using Jasper IReports. I want to export some info into a pdf file and I keep getting the java.lang.IllegalStateException: ...

2. How to send HttpServletResponse in the PrintWriter having an HTML structure to a jsp

I am trying to send a table in html code to a jsp using

PrintWriter out = response.getWriter();
then using response.sendRedirect(jsp name) to send the table to the jsp; But this is ...

3. the PrintWriter servlet Buffer and displayind data from a jsp

I need really your help please. What I do is to build a table in html tags in my servlet then when trying to send this table to a servlet for the ...

4. Unbuffered JspWriter sends to PrintWriter, is that bufferred?

The JspWriter docs say, "If the page is not buffered, output written to this JspWriter object will be written through to the PrintWriter directly.... But if the page is buffered, the ...

5. what is difference between JspWriter and PrintWriter?

what is difference between JspWriter and PrintWriter ?

6. In Java, can I consolidate two similar functions where uses JspWriter and the other PrintWriter?

I have the following class, which as you will see has rather a rather redundant formatNameAndAddress method:

package hu.flux.helper;

import javax.servlet.jsp.JspWriter;

// A holder for formatting data 
public class NameAndAddress 
 public String ...

7. Shouldn't a method that receives java.lang.Object as input also receive javax.servlet.jsp.JspWriter as input?

I wanted to consolidate two functions. After getting a viable solution, I decided to play with the code a bit further, and came up with this:

package hu.flux.helper;
import ...

8. Problem encountered while using PrintWriter in Java

public void doGet(HttpServletRequest request,HttpServletResponse response)throws ServletException, IOException {
    PrintWriter out = response.getWriter();
    out.println("Hello World");
Does Fine But if instead of "Hello World", if a ...

9. Using PrintWriter while downloading a file

I have a requirement, where i need to process a set of files and create a compressed zip file out of it and then use it for download. I am using ...

10. Using Printwriter in servlet response

In this link it says:Handles the user's request to generate the HTML for the report and writes the HTML directly to the response object. Now in my code, I have:

PrintWriter ...

11. JspWriter vs PrintWriter

12. Manipulating the PrintWriter Object

To elaborate it ... I have a JSP which generates a report. While viewed through a browser it works fine! But now the JSP must be tweaked to generate a HTML report, which should be saved in the server's file system itself. So I thought I will have the logic, 1. JSP logic to generate HTML 2. Followed by new logic ...

15. ServletOutputStream v. PrintWriter

16. JspWriter Vs PrintWriter

17. Must close PrintWriter in servlet when done?

To some degree this depends on the servlet container. It's usually safe to leave the stream open, as the container has to account for that and try to flush and close it. Almost all "real" servlet containers also work quite happily of you do close the stream, but some just wrap the socket stream and closing that would potentially cause it ...

18. Disable Auto Servlet PrintWriter

19. Printwriter vs ServletOutputStream

21. PrintWriter in servlet and JSP

23. Servlet - PrintWriter error

Hi Ben, Yes, that is exactly what I need. I need to see something along the lines of: " /> &chartWidth=600&chartHeight=500"> " flashVars="&dataURL=<%= renderResponse.encodeURL(renderRequest.getContextPath()) + "/Line2D.xml"%>&chartWidth=600&chartHeight=500" quality="high" width="600" height="500" name="Column3D" type="application/x-shockwave-flash" pluginspage=""> I am ...

26. Servlet : PrintWriter out = rsp.getWriter(); --what does this do??

PrintWriter is an abstract class for writing to character streams. Methods implement are write(char[], int, int), flush(), and close().Print formatted representations of objects to a text-output stream. This class implements all of the print methods found in PrintStream. It does not contain methods for writing raw bytes, for which a program should use unencoded byte streams.

28. difference printwriter & out.println

package net.ensode.glassfishbook.simpleapp; import; import; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class SimpleServlet extends HttpServlet { protected void doGet(HttpServletRequest request, HttpServletResponse response) { try { response.setContentType("text/html"); PrintWriter printWriter = response.getWriter(); printWriter.println("

"); printWriter .println("If you are reading this, your application server is good to go!"); printWriter.println("

"); } catch (IOException ioException) { ioException.printStackTrace(); } } }

30. PrintWriter vs JspWriter

32. Two PrintWriter objects in a servlet class

Do you take any time to think about your questions, or do you just post them in rapid fire? In one of your other postings you already noted that when you close a PrintWriter it doesn't give an Exception when you try to write to it again. So I would guess because you've close it, you can't just open it by ...

33. JspWriter vs PrintWriter