I'm working on a multi-threaded web-server for a school project. I should be able to go into the localhost on my browser and request 3 different files (.htm, .jpeg,.pdf). However, when I do this for a .htm file with the picture also inside of it (2 requests) the .htm file appears in browser but I get many broken pipe socket exceptions for each write I try to do on the picture (Assignment requires to write 1024 bytes at a time). Something is clearly wrong with the way I have implemented this but I am at a loss as to where the connection is being closed when I try to write for the second file?
I tried a few different things to try and fix this including a loop when trying to read the socket input stream but I think that defeats the purpose of the multi-threaded server.
The server:
while(true){
try {
sock = servSock.accept(); // Handles the connection
// Connection received log
System.out.println("Connection received: " + new Date().toString() + " at " + sock.getInetAddress() + sock.getPort());
HTTP pro = new HTTP(sock); // Client handler
pro.run();
ServerThread serverThread = new ServerThread(pro);
// Starts ServerThread
serverThread.start();
} catch (Exception e){
System.out.println(e);
}
}
HTTP:
public void run(){
// Try to open reader
try{
readSock = new BufferedReader(new InputStreamReader(sock.getInputStream()));
} catch (Exception e){
System.out.println(e);
}
// Open output stream
try{
this.out = new DataOutputStream(sock.getOutputStream());
this.printOut = new PrintWriter(sock.getOutputStream());
} catch (Exception e){
System.out.println(e);
}
// Try to read incoming line
try {
this.reqMes = readSock.readLine();
} catch (IOException e) {
e.printStackTrace();
}
StringTokenizer st = new StringTokenizer(reqMes);
// Parse the request message
int count = 0;
while(st.hasMoreTokens()){
String str = st.nextToken();
if (count == 1){
this.fileName = "." + str;
}
count += 1;
}
System.out.println("File name received.");
File file = null;
try {
file = new File(this.fileName);
this.f = new FileInputStream(file); // File input stream
this.fileExists = true;
System.out.println("File " + this.fileName + " exists.");
} catch (FileNotFoundException e) {
System.out.println(e);
this.fileExists = false;
System.out.println("File does not exist.");
}
byte[] buffer = new byte[1024];
// Write status line
if (this.fileExists) {
System.out.println("Trying to write data");
try{
this.out.writeBytes("HTTP/1.0 " + "200 OK " + this.CRLF);
this.out.flush();
this.printOut.println("HTTP/1.0 " + "200 OK " + this.CRLF);
// Write Header
this.out.writeBytes("Content-type: " + getMime(this.fileName) + this.CRLF);
this.printOut.println("Content-type: " + getMime(this.fileName) + this.CRLF);
this.out.flush();
// Read file data
byte[] fileData = new byte[1024];
while (this.f.read(fileData) != -1) {
// Write File data
try{
this.out.write(fileData,0,1024);
this.out.flush(); // Flush output stream
} catch (IOException e) {
System.out.println(e);
}
}
System.out.println("Flushed");
} catch (IOException e) {
e.printStackTrace();
}
}
For one .htm file in the browser, the file and html seem to appear fine. But it looks like it makes a second request for a .jpeg file within the html file and the browser gets stuck loading with java.net.SocketException: Broken pipe (Write failed) when writing the data each time at
this.out.write(fileData,0,1024);
Thank you, any help is appreciated.
