problem about outputstream-Collection of common programming errors
Ford Perfect
java pdf itext outputstream fileoutputstream
I earlier used flying-saucer to generate my PDF but after a while it started throwing an unexpected exception. So having some constraints I have decided to fall back on the latest version of iText with XMLWorker.In this code which is part of my doPost() method of the servlet I am supplying the cleaned HTML to XMLWorker instance. But this results in an empty PDF of 1 Kb to be stored in the directory.What could be the reason it is not writing to the file? As always I would be very grateful for any
bethlis
java servlets pdf outputstream
I’m trying to send a static pdf (which is on the system) to a outputStream in order to display a save-as-dialog. But when the Pdf is opened only an empty page is displayed:here’s the code which should display the dialog://get the pdf:String pathToPdf = servletContext.getRealPath(“/pdfFiles/dealer.pdf”);File pdfFile = new File (pathToPdf);response.setContentType(“application/pdf”);response.addHeader(“Content-Disposition”, “attachment; filename=dealer.pdf”);response.setContentLength((int) pdfFile.
elder elder
java file size outputstream flush
First of all, I apologize for the wall of text.I am writing chunks of data to a file (using a FileOutputStream); from time to time I am flushing, and checking the length of the file (File.length()) to see whether a certain threshold has been reached. These log files need to be available for further request upon request.The code is in a production environment, part of a rather elaborated logging system; therefore I am apologizing for the lack of code – it’s not just impractical, but downright imp
Jonathan Leffler
java inputstream abstract outputstream
I’ve been exploring the java.io package a lot lately, and I’ve been wondering where can I find the exact processes that the abstract classes inside InputStream and OutputStream do.I’m dazzled because, at least according to the source code, the core methods are all abstract (e.g. InputStream.read() and OutputStream.write(int b)). I’m especially concerned by the close methods, whose javadocs explicitly say they do nothing:Closes this input stream and releases any system resources associated with t
Omry Yadan
java external outputstream
I’m trying to enter some value in external application using Java. Java application looks like this:Runtime runtime = Runtime.getRuntime(); // … str build … proc = runtime.exec(str); BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(proc.getOutputStream())); bw.write(value); bw.flush(); bw.close(); if (proc.waitFor() != 0) // error msg // the endApplication hangs at waitFor method. External application looks like this:welcome bannerplease enter 8 character input:Welcome banner is
user1000742
java runtime cmd inputstream outputstream
I searched a lot the last hours to open program.exe and interact with it like cmd. The solutions I found did not work or just worked for opening cmd and running commands like ‘dir’.I want to open a program (lets say program.exe), entering a command, parsing the output and then entering the next command. The window of the command line does not have to be open/visible but I need to get the output and enter further commands. How can I do this with Java?
Matthias
java outputstream
i’ve used ResorceLoder class to get input stream but how can i get outputStream, is this possible to modify data which is in that package?(i need to change the image files which are present in that package using java class which is present in the same jar file)
Ivarpoiss
java logging io outputstream
How to prevent other classes changing the System.out? I would like to set the System.out PrintStream in App.main and make it a final so it can’t be changed anymore form the other parts of the App. Is it possible? Any hacky way would do 🙂
w2lame
bash outputstream fileoutputstream
I have a script which ensures that the process keeps on running and the output of the process are being redirected to corresponding process_name.out files.Mysteriously (for me atleast), the output doesn’t get redirected to the file unless I close down the script though the error does.Any clues in this regard would be really helpful.#!/bin/bashuntil $1 >> “/root/$1.out” 2>>”/root/$1.log” ; doecho “Server $1 crashed with exit code $?. Respawning..” >> “/root/procees.log”sleep 1
pad
printing monotouch outputstream
Looking for some help over here.When i run this code (below), it crashes when i process it for the second time. it crashes with an object reference not set.. on the session.outputstreamvar session= new EASession(accessory, “net.gebe”); session.OutputStream.Open();the second time session.outputstream is null. Even when disposing session.Richardpublic void PrintIt(){var _accessoryList = EAAccessoryManager.SharedAccessoryManager.ConnectedAccessories;accessory = null;foreach(var obj in _accessoryLis
user1591612
process outputstream dart
I’m trying to write a dart server application that will communicate to an application which accepts input and gives output, like the unix tool bc.I can read the output of bc, but I cannot send a command to bc. Here is my code:#import(‘dart:io’);void main() {var p = Process.start(‘bc’, [“-i”]);var stdoutStream = new StringInputStream(p.stdout);stdoutStream.onLine = () => print(stdoutStream.readLine());p.stdin.writeString(“quit\n”);p.onExit = (exitCode) {print(‘exit code: $exitCode’);p.close();
Jake Wharton
android httpurlconnection outputstream
i make a android application and used for HttpUrlConnection, POST method, HoloEverywhere Library but i have problem… why happen to problem that i don’t know… im think that getOutputStream() error because if used to getOutputStream() method show message ” application unfortunately, * has stopped.” and stopped application.main.javaimport java.io.BufferedOutputStream; import java.io.IOException; import java.io.OutputStream; import java.net.HttpURLConnection; import java.net.URL;import android.o
FoamyGuy
file blackberry download inputstream outputstream
I have a blackberry application that is downloading a file from online. Sometimes the download succeeds and other times it fails somewhere in the middle. It only seems to be a problem on the Curve 9360 device. When it fails, on the device it closes my app and shows a pop-up that says “Uncaught exeption Application [MyApp] is not responding; processterminated”this is the while loop that it is in when it fails:byte data[] = new byte[1024];try {while ((count = is.read(data)) != -1) {total += count;
NullUserException
c newline buffer outputstream
This is my program:#include <stdio.h> int main(int argc, char* argv[]) {char buf[1024] = {0};setvbuf(stdout, buf, _IOFBF, 1024);printf(“error\n”);printf(“%s\n”, buf); }And this is the output:error errorExited: ExitFailure 7Why are both lines 3 and line 4 blank lines ? Isn’t the character ‘\n’ flushing the output buffer and being discarded later?
Arve Bjørnerud
c# asp.net save global-asax outputstream
I have a problematic bug in a production system, which I simply can’t find. Sometimes the system produces an invalid link. When the end-user clicks it I get an error report from the system, and the end-user gets an error message. The URL’s that fail are like this:http://www.mysite.com/somepath/undefined/The “undefined” part is the problem, which I think is produced by JavaScript, but I like to make sure it’s not from the back-end.Is there a way to save every response to a file if it contains the
John Snow
java chat inputstream outputstream
Im building a simple chat client which is only supposed to be able to send and receive messages. Im using a server running on my own computer that sends back whatever message is sent to it, to all the user that’s connected to the server.When I send messages to the server by clicking my “send button”, the server isn’t sending back the message to me as it’s supposed to. So either my output stream isn’t working, or my listener for input messages isn’t working but can’t figure out what is wrong. I m
user2278118
java multithreading sockets chat outputstream
The title was bad i know but let me explain my situation. Okay, i am making a server that sits off to the side and communicates with my minecraft client. I can get one client to connect and transfer data back and fourth. When I try to connect with a second client i get the error:java.net.SocketException: Connection reset by peer: socket write error at java.net.SocketOutputStream.socketWrite0(Native Method) at java.net.SocketOutputStream.socketWrite(Unknown Source) at java.net.SocketOutputStream.
Jon Skeet
c# .net sockets windows-runtime outputstream
I had a problem a few days ago with Sockets in WinRT. The solution worked fine (as I was able to receive responses), but then something was going wrong with the OutputStream. Since my packet structure of the application I’m developing is close to IRC, I started to create an IRC application so I could test it with accuracy. It works almost, except the packets aren’t sent properly (according to http://forums.xkcd.com/viewtopic.php?f=11&t=61777) and hopefully I could get some more help as it’s
Adrian Jandl
java sockets inputstream outputstream
My Server runs this code in a Thread, so that I can interact with the GUI while I am waiting for my client to connect.(I am only using 1 client and 1 server at the moment.)@Override public void run() {Socket client = null;MessageListener listener = null;try {client = server.accept();oos = new ObjectOutputStream(client.getOutputStream());ois = new ObjectInputStream(client.getInputStream());listener = new MessageListener(ois);(new Thread(listener)).start();} catch (IOException e) {e.printStackTrac
kaptaincooke
java android sockets bytearray outputstream
I have a “server” running in java and I am sending files via byte array to a “client” (android system). The functionality works fine, but I’ve noticed when I try to send larger files (1MB+), it doesnt successfully write all the bytes before closing (Ex: tried sending 5mb, and it only sent 902 bytes). Is there a way to have the code wait for the stream to finish writing before closing the stream? Below is the code and the stack trace. Essentially the send message method is called when a file is a
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