public void run() {
try {
while (true) {
StringBuffer sb = new StringBuffer();
DataInputStream is = new DataInputStream(new BufferedInputStream(s.getInputStream()));
String inputLine = "";
int i;
// System.out.println("server prepare accept msg");
while ((i = is.read()) != 59) {
if (i == -1) {
continue;
}
sb.append((char) i);
}
if (sb.toString().indexOf("NETTST") == -1) {
System.out.println("服务器收到信息为" + sb.toString());
}
System.out.println("服务器收到信息为" + sb.toString());
// System.out.println("server has accept msg");
this.sleep(2000);
// is.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
public void run() {
try {
DataOutputStream out = new DataOutputStream(client.getOutputStream());
FileInputStream file_in = new FileInputStream(file);
DataInputStream in = new DataInputStream(file_in);
byte buffer[] = new byte[512];
while (in.read(buffer) != -1) {
System.out.print("\nSending buffer to: " + client_id);
out.write(buffer, 0, buffer.length);
}
} catch (Exception exception) {
System.out.println("\nException" + exception);
System.exit(0);
} finally {
try {
client.close();
} catch (Exception exception) {
System.out.println("\nException" + exception);
System.exit(0);
}
}
}
private void exchangeKeys() {
try {
output.write(modulus.toByteArray());
byte[] buffer = new byte[ciphertextBlockSize];
input.read(buffer);
recipModulus = new BigInteger(1, buffer);
} catch (IOException ioe) {
System.err.println("Error establishing keys");
}
}
public static void read_stream(DataInputStream is, byte[] stream, int length) {
int remlen = length;
int off = 0;
try {
while (remlen > 0) {
int redlen = is.read(stream, off, remlen);
if (redlen == -1) {
System.err.println(" failed to read_stream()");
break;
}
off += redlen;
remlen -= redlen;
}
} catch (IOException e) {
System.err.println("IOException: " + e);
}
}
private void go() {
try {
// Read as long as there is input
byte[] buffer = new byte[ciphertextBlockSize];
boolean disconnectMsgSent = false;
while (connection != null && !disconnectMsgSent && input.read(buffer) != -1) {
// Decipher the bytes read in
byte[] plaintext = Ciphers.RSADecipherWSalt(buffer, decipherExp, modulus);
if (plaintext.length == 1 && plaintext[0] == 0) {
disconnectMsgSent = true;
closeAll();
} else {
// convert to a string and display
message = new String(plaintext);
displayArea.append("\n" + message);
}
}
} catch (IOException ioe) {
// Server disconnected-we can reconnect if we wish
}
}
@Override
public void run() {
try {
// Create data input and output streams
DataInputStream inputFromClient = new DataInputStream(socket.getInputStream());
DataOutputStream outputToClient = new DataOutputStream(socket.getOutputStream());
// Set up a byte buffer to capture the file from the client
byte[] buffer = new byte[BUFFER_SIZE];
OutputStream outputStream = null;
String fileName = "";
boolean createFile = true;
int bytesReceived = 0;
long totalBytesReceived = 0;
long fileSize = 0;
// Continuously serve the client
while (true) {
bytesReceived = inputFromClient.read(buffer);
if (bytesReceived
> 0) { // Get the file transmission header from the initial client packet
String transmitHeader = new String(buffer, 0, bytesReceived);
// transmitHeader = transmitHeader.substring(0, bytesReceived).trim().;
String[] header = transmitHeader.split(HEADER_DEL);
fileSize = Long.parseLong(header[0]);
fileName = header[1];
// Send receipt acknowledgment back to the client. Just send back the number of bytes
// received.
outputToClient.writeInt(bytesReceived);
// Reinitialize buffer values
buffer = new byte[BUFFER_SIZE];
bytesReceived = 0;
}
// Wait for client to send bytes
while ((bytesReceived = inputFromClient.read(buffer)) != -1) {
if (inputFromClient.available() > 0) {
if (createFile) { // Get a unique name for the file to be received
fileName = textFolder.getText() + fileName; // getUniqueFileName();
outputStream = createFile(fileName);
createFile = false;
textArea.append("Receiving file from client.\n");
}
// Write bytes to file
outputStream.write(buffer, 0, bytesReceived);
} else { // We get here if no more data is available, but some bytes were already
// received
// If bytes were received and the file wasn't already created,
// it means that the file was smaller than our buffer size.
// Create the file...
if (bytesReceived > 0
&& createFile) { // Get a unique name for the file to be received
fileName = textFolder.getText() + fileName; // getUniqueFileName();
outputStream = createFile(fileName);
createFile = false;
textArea.append("Receiving file from client.\n");
}
if (outputStream != null) {
if (bytesReceived > 0) { // Write remaining bytes to file, if any
outputStream.write(buffer, 0, bytesReceived);
}
outputStream.flush();
outputStream.close();
textArea.append("Received file successfully. Saved as " + fileName + "\n");
// Return success to client.
outputToClient.writeInt(0);
}
// Reset creation flag
createFile = true;
break;
}
// Reinitialize buffer values
buffer = new byte[BUFFER_SIZE];
bytesReceived = 0;
}
}
} catch (IOException e) {
System.err.println(e);
}
}
