How Do I read in a file as text to a buffer?

Question

mimsc 0 Junior Poster in Training

15 Years Ago

I have a jsp...I need to read in the generated html fron the jsp to a string buffer I can use in a mail method

how do u do that?

test.jsp

java

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Latest Post 15 Years Ago Latest Post by ~s.o.s~

~s.o.s~ 2,560 Failure as a human

15 Years Ago

You can use the URLConnection class or the Apache Commons HttpClient library to retrieve the HTML generated by your JSP; pushing it into a StringBuffer/StringBuilder is just a matter of reading the HTTP response stream.

~s.o.s~ 2,560 Failure as a human

15 Years Ago

Is that link accessible via the browser? Since a server error has occurred, it might pay off to see the server log for more details.

BTW, I think you are better off using a free reporting tool like Jasper Reports to create reports rather than use the JSP of your very own application. Also, moving all this business code in a separate class which would be called by the servlet would be a wise move.

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mimsc 0 Junior Poster in Training · Answer 1 · 2009-07-22T23:56:32+00:00

hey thanx for the response....check me out this what I got:

I got a form called "homeSellerReport1.jsp"..that has a submit that goes to this page:

<%@ page language="java" %>
<%@ page import="trader.webservices.util.Utils" %>
<%@ page import="trader.webservices.util.EmailSender" %>
<%@ page import="trader.webservices.data.UserDataVO" %>
<%@ page import="trader.webservices.data.UserInfoDAO" %>
<%@ page import="trader.webservices.data.AgentInfoDAO" %>
<%@ page import="java.io.DataOutputStream" %>
<%@ page import="java.io.FileOutputStream" %>
<%@ page import="java.io.FileInputStream" %>
<%@ page import="java.io.IOException" %>
<%@ page import="java.util.*" %>
<%@ page import="java.net.*" %>
<%@ page import="java.io.*" %>
	
	<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
   "http://www.w3.org/TR/html4/loose.dtd">
 <% 
 	UserDataVO userData = null;
    
 	String username = request.getParameter("username");
	String password = request.getParameter("password");
	String format = "txt";
 
	//String domainName = UserInfoDAO.removeHostRedirection(request.getServerName());
	
	String adminServer = request.getServerName();
	String javaAdminServer = request.getServerName();
	
	 if (request.getServerName().equals("localhost") || request.getServerName().startsWith("199")) {
			adminServer = "cpanel.homes.com";
			javaAdminServer = "localhost:8080";
	 }
	
			userData = UserInfoDAO.getUserInfo(username);
	
	//String address = "suggestaservice@agentadvantage.com,support@agentadvantage.com";
	String emailTo = request.getParameter("emailTo");
			
			
	URL httpUrl  = new URL("http://" + javaAdminServer + "/JAABA/jsp/cpanel/homeSellerReport1.jsp");
	InputStream fis  = httpUrl.openStream();
                byte[] bytes = new byte[fis.available()];
	
			
                fis.read(bytes);
                String strFileContent = new String(bytes);
			

	String msgBody = "Attached is the homeseller report you requested.";
	EmailSender emailSender = new EmailSender();
	emailSender.sendMailWithAttachment(emailTo,"web@homes.com","HomeSeller Report from Control Pane, Test",msgBody,strFileContent,format);
   
   %>

but im getting this error

java.io.IOException: Server returned HTTP response code: 500 for URL: http://localhost:8080/JAABA/jsp/cpanel/homeSellerReport1.jsp

mimsc 0 Junior Poster in Training · Answer 2 · 2009-07-23T01:14:59+00:00

Is that link accessible via the browser? Since a server error has occurred, it might pay off to see the server log for more details.
BTW, I think you are better off using a free reporting tool like Jasper Reports to create reports rather than use the JSP of your very own application. Also, moving all this business code in a separate class which would be called by the servlet would be a wise move.

nah that link is not accesible via the browser...the log's tellin me Im getting a null from that page im trying to read from because its a form that requires parameters passed to it once accessed.....so I know what the problem is.....I just dont know how to get around it

mimsc 0 Junior Poster in Training · Answer 3 · 2009-07-23T01:30:21+00:00

I basically when I hit the "submit...I wanna go to that page....and have have all the rendered html from the page I was just on in a string so I can pass to that function

when I try to do that HTTP stream it wipes the page clean...thats the problem

~s.o.s~ 2,560 Failure as a human Team Colleague Featured Poster · Answer 4 · 2009-07-23T01:34:53+00:00

> a form that requires parameters passed to it once accessed.....so I
> know what the problem is.....I just dont know how to get around it

You can pass those form parameters in the URL [assuming you know what they are]

String url = "http://localhost/MyApp/param1=value1&param2=value2";

But like I previously mentioned, all this is really hackish; you really need to come up with something better than calling your own JSP and mailing its response.