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02.24.2008 at 05:33AM PST, ID: 23188353
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7.8

Java URL Class performance question

Zones: jEdit Editor, Enterprise Java Beans (EJB), New to Java Programming
Tags: Java
I have code that reads html page from internet using URL class and steream
the problem is with large pages like yahoo pages it hangs the application for 20 sec in loading

any solution to this problem???
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URL url = new URL(surl);
               URLConnection conn = url.openConnection();
               conn.setRequestProperty("User-Agent",
                       "Mozilla/4.0 (compatible; MSIE 7.0b; Windows NT 6.0)");
               BufferedReader in = new BufferedReader(new InputStreamReader(conn.
                       getInputStream()));
 
               String str = "", result = "";
 
               while ((str = in.readLine()) != null) {
                   result += str.replaceAll("</?b>|</?strong>", "");
 
               }
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Question Stats
Zone: Programming
Question Asked By: eugie17
Solution Provided By: qasitouch
Participating Experts: 1
Solution Grade: A
Views: 17
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02.24.2008 at 10:28AM PST, ID: 20970741
qasitouch:

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02.24.2008 at 10:31AM PST, ID: 20970748
qasitouch:

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02.24.2008 at 10:40AM PST, ID: 20970782
qasitouch:

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02.24.2008 at 10:28AM PST, ID: 20970741
qasitouch:
              URL url;
            try {
                  
                  url = new URL("www.abc.com/op.htm");
                       URLConnection urlc = url.openConnection();

                        InputStream in = urlc.getInputStream();
                        int ch;

                        while ((ch = in.read()) != -1) {

                              resposne.append((char) ch);
                        }

                              response.setContentType("text/html");
                               
                              String finalResponse = resposne.toString();
                              /** To print the data on the client html browser */
                              out.println(finalResponse);
                              out.close();
}catch(Exception e)
{
e.printstacktrace();
}
--------------

where "response" is  HttpServletResponse response
hope this code will solve ur prblem.
 
02.24.2008 at 10:31AM PST, ID: 20970748
qasitouch:
sory i wrote response mistanly abouve

its a string buffer

i am writing it again
------------------------------------------------------------------
StringBuffer resposne = new StringBuffer("");

URL url;
            try {
                 
                  url = new URL("www.abc.com/op.htm");
                       URLConnection urlc = url.openConnection();

                        InputStream in = urlc.getInputStream();
                        int ch;

                        while ((ch = in.read()) != -1) {

                              resposne.append((char) ch);
                        }

                              response.setContentType("text/html");
                               
                              String finalResponse = resposne.toString();
                              /** To print the data on the client html browser */
                              out.println(finalResponse);
                              out.close();
}catch(Exception e)
{
e.printstacktrace();
}

-------------------------------
 
02.24.2008 at 10:40AM PST, ID: 20970782
qasitouch:
i have been using above code for a long time, but never got such problem.

there is no problem with the code.

See, when you get string from a url, it uses internet, means time taken to get the page from internet, slows the process, otherwise it will not take long as for as you code is concern. user more fast internet conection, you'll se time taken in completing the process will decrease.

It has nothing to do with the code/logice, its all about internet speed or you can say time taken by your application to get the page from internet.

regards,
qasitouch.
Accepted Solution
 
 
eugie17
02.24.2008 at 11:11AM PST, ID: 20970903
Thank u I really appreiate anyone who will spend time giving me an answer to my question
but I have one las question for u

did u tryed ur code with the yahoo page? mine work fine for normal pages but has problem with yahoo page (due to size i guess)

 
 
 
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