HttpServletResponse « API « JSP-Servlet Q&A





1. How does getWriter() function in an HttpServletResponse?    stackoverflow.com

In the method service(), we use

PrintWriter out = res.getWriter();
Please tell me how it returns the PrintWriter class object, and then makes a connection to the Browser and sends the data to ...

2. Should one call .close() on HttpServletResponse.getOutputStream()/.getWriter()?    stackoverflow.com

I couldn't find an authoritative answer to this with some Googling. In Java servlets, one can access the response body via response.getOutputStream() or response.getWriter(). Should one call .close() on this stream ...

3. Java/JSP HttpServletResponse issue    stackoverflow.com

In my java class I am trying to do something like

HttpServletResponse.setCharacterEncoding("UTF-8");
but the code fails to compile with the message:
Depend attribute is not supported by modern compiler.
If I remove this ...

4. MD5 Signing a HttpServletResponse    stackoverflow.com

I'm looking for a way to inspect the contents of a HttpServletResponse to sign them with a MD5 hash. The pseudocode might look like this

process(Response response, Request request){

defaultProcessingFor(response,request);

dispatcher.handle(response,request);

// Here I want ...

5. Mockito: capturing HttpServletResponse#sendError()    stackoverflow.com

Can I use Mockito to capture what was passed to the HttpServletResponse#sendError() method? I can't figure out how to do that.

6. Is calling HttpServletResponse.addCookie() with the same cookie name safe?    stackoverflow.com

Is calling

HttpServletResponse.addCookie();
(from servlet-api-2.5) multiple times using a cookie with the same name safe? Safe in the sense of that there is a deterministic behavior, e.g. the subsequent calls will be ignored ...

7. capture HttpServletResponse Object    stackoverflow.com

I want to extract the body of a HttpServletResponse Object.I know we could use a filter to do that but i was wondering if there is any other way in which ...

8. Why use the HttpServletResponseWrapper vs extending HttpServletResponse directly    stackoverflow.com

I'm looking at the decorator HttpServletResponseWrapper and I'm wondering what is the benefit in using this wrapper vs simply extending HttpServletResponse and overriding what you need? What is the benefit in ...

9. Will calling HttpServletResponse.reset() reset the OutputStream so it can be obtained again?    stackoverflow.com

Here is a situation. Custom servlet obtains writer and it is going to do some work, however exception happens, so control is taken by some servlet framework. The framework has capability ...





10. How to clone a detached HttpServletRequest and HttpServletResponse provided by the Servlet Container?    stackoverflow.com

I want to implement the following logic: when I receive HttpServletRequeset and HttpServletResponse in main servlet's doService method (in the main web Container thread),I start A,B,C three threads (thread managed by my ...

11. Storing HttpServletResponse and HttpServletRequest as two fields of a HttpServlet    stackoverflow.com

Is it a good practice/safe to temporarily store the HttpServletRequest and the HttpServletResponse as two fields of a HttpServlet (see below) ? If not, why ?

import java.io.IOException;    ...

12. Call HttpServletResponse a second time    stackoverflow.com

I'm trying to set up a servlet that I can use to call webservices asynchronously. For the most part, it is working fine. I have a servlet with a ...

13. Does add cookie to HttpServletResponse cause download attachment fail via SSL in IE?    stackoverflow.com

String contentType = "application/x-download";
response.reset();
response.setHeader("Expires", "0");
response.setHeader("Cache-Control", "must-revalidate, post-check=0, pre-check=0");
response.setHeader("Pragma", "public");

StringBuffer contentDisposition = new StringBuffer();
contentDisposition.append("attachment;");
contentDisposition.append("filename=\"");
contentDisposition.append(sFileName);
contentDisposition.append("." + sSubFileName);
contentDisposition.append("\"");
response.setHeader("Content-Disposition", new String(contentDisposition.toString().getBytes(System.getProperty("file.encoding")), "iso8859_1"));              ...

14. Is there a wrapper that provides access to the components of HttpServletResponse in Java?    stackoverflow.com

Is there a wrapper that provides access to the components of HttpServletResponse in Java? Thanks, Xybrek

15. Java's HttpServletResponse doesn't have isClientConnected method    stackoverflow.com

I'm implementing a long poll http connection using java servlet. How can I know that the http client is still active at any instance? Currently, what I do is to write a ...

16. AJAX with Java: How is HttpServletResponse Affected?    stackoverflow.com

I am learning both AJAX and the Java Servlet API (well, Spring MVC, which is based upon Servlets) at the same time, and believe I am understanding most of the basics, ...





17. HttpServletResponse to get Http Status Code    bytes.com

Hi, When we get request on server after processing that it writes back the response to client that also contains HTTP status code like 200 for Ok, 404 for page not ...

19. HttpServletResponse& HttpServletRequest    coderanch.com

22. HttpServletResponse Status    coderanch.com

Hi The Java API provides the methods to set the status on the HttpServletResponse object. res.setStatus(res.SC_NOT_FOUND) res.sendError(res.SC_NOT_FOUND) But my question is how do i get the status which i have set in some part of the code in the later sections of the code. Say if the status is set based on some condition using an if statement like if(something){ res.setStatus(res.SC_NOT_FOUND) ...

24. HttpServletResponse.sendError    coderanch.com

Hello, Does HttpServletResponse.sendError allways return HTML to client? I have a third part vendor's MVC framework that uses HttpServletResponse.sendError when an exception occurs. If I have browser client everytgunh is ok. When I have a WAP client it seems to be so that HttpServletResponse.sendError is not suitable because it does not return WML/UTF-8 and does not use error-page tags defined in ...

25. HttpServletResponse content size?    coderanch.com

26. HTTPServletResponse sendRedirect    coderanch.com

The response is comitted as soon as you start sending data to the client. This isn't quite straigh-forward, since the first stuff you send to the client is usually buffered by the output stream, so you may be able to write some data before this buffer fills and the response is comitted. What this means is that as soon as you ...

28. HttpServletResponse status info    coderanch.com

29. HttpServletResponse Error    coderanch.com

HI Ben, What if I use forward instead of sendRedirect. Will I still get the same exception (IllegalStateException). What is the difference between between the two, forward and sendRedirect. Can I send parameters with sendRedirect. With forward I can forward the request . CAn we also forward request with sendRedirect. Due Regards,

33. HashMap in HttpServletResponse    coderanch.com

34. Save a HttpServletResponse    coderanch.com

Say I have a JSP page that is generated which is resulted from reading from a database etc. What I would 'maybe' like to do is allow a request to go through the first time, copy and save the response, and re-use it for later requests for that page without having to have all of the overhead of going through the ...

37. Doubt in HTTPServletResponse    coderanch.com

Hi All, I have tried this code from Head First book ( Chapter 4 ) to implement the jar download functionality in servlets. The code is working fine, but while downloading the file,it is not getting downloaded as jar file( with .jar extension). Instead it is getting downloaded as a file with unknown filetype. What's wrong with this code? What should ...

39. How to get a response (HTTPServletResponse) to a string?    coderanch.com

When I mentioned about saving the request and response, this is what I meant.. Before the HTTPServletRequest is sent out, I have got it in an inputstream and read it to a Stringbuffer. Then I made a string out of it and saved that string in the Database. Now I decided to send the request object to a URL which is ...

40. How to get content from HttpServletResponse    coderanch.com

Hi All I have written a filter on top of a Servlet. After doFilter() method, I want to get the content from the response object and save it inside cache. The content in the response is set by PrintWriter.println(xmlContent). Here is the code snippet: public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { if (debug) { log("ServletContainerFilter:doFilter()"); } ...

41. HttpServletResponse    coderanch.com

42. RequestDispatcher.forward()/include(), HttpServletResponse.sendRedirect() and HttpServlet.destroy()    coderanch.com

Hi, I'm currently developing an app in GAE/J using simple JSP+Servlet and JDO. I'm trying to come up with a simple MVC-style pattern where a request will hit a servlet and the servlet will either forward() (via RequestDispatcher) the end result to a JSP or the response will sendRedirect() to another JSP page. One of the thing I'd like to do ...

44. HttpServletResponse and HttpServletRequest    coderanch.com

Did looking them up not help at *all*?! Is this an interview question? If so, I'm baffled for multiple reasons: if you're interviewing for a position for which you'd be asked this, I'd be concerned if you didn't know. If you didn't know, I'd be concerned you couldn't just look it up.

46. HttpServletResponse Interface    coderanch.com

48. How to get content from HttpServletResponse    java-forums.org

Hi All I have written a filter on top of a Servlet. After doFilter() method, I want to get the content from the response object and save it inside cache. The content in the response is set by PrintWriter.println(xmlContent). Here is the code snippet: Java Code: public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { if (debug) { ...

52. HttpServletResponse setCharacterEncoding problem    forums.oracle.com

thanks for your answer, but it was working two days ago... i am using gwt in my project and two days ago i just changed the olderversion gwt jars with the new ones. Then i got many errors because of version differency and i replaced the old ones again. But this problem occured... did not change any other libraries. What ...