我正在尝试基于Web套接字技术实现服务器和客户端,但是当我运行TCPDataServer类时,我收到以下错误:
java.io.IOException: connection reset
at java.io.DataInputStream.read(Unknown Source)
at org.server.ClientWorker.run(TCPDataServer.java:67)
at java.lang.Thread.run(Unknown Source)
我除了获得以下输出Hello, I am Alex!
TCPDataClient
package org.client;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
public class TCPDataClient {
public static void main(String[] args) {
try {
TCPDataClient obj = new TCPDataClient();
Socket obj_client = new Socket(InetAddress.getByName("127.0.1"), 1000);
DataInputStream din = new DataInputStream(obj_client.getInputStream());
DataOutputStream dout = new DataOutputStream(obj_client.getOutputStream());
byte[] buffer = obj.createDataPacket("Hello, I am Alex!".getBytes("UTF8"));
dout.write(buffer);
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private byte[] createDataPacket(byte[] data) {
byte[] packet = null;
try {
byte[] initialize = new byte[1];
initialize[0] = 2;
byte[] separator = new byte[1];
separator[0] = 4;
byte[] data_length = String.valueOf(data.length).getBytes("UIF8");
packet = new byte[initialize.length + separator.length + data_length.length + data.length];
System.arraycopy(initialize, 0, packet, 0, initialize.length);
System.arraycopy(data_length, 0, packet, initialize.length, data_length.length);
System.arraycopy(separator, 0, packet, initialize.length + data_length.length, separator.length);
System.arraycopy(data, 0, packet, initialize.length + data_length.length + separator.length, data.length);
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return packet;
}
}
TCPDataServer
package org.server;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Arrays;
import java.util.logging.Level;
import com.sun.istack.internal.logging.Logger;
public class TCPDataServer {
public static void main(String[] args) {
try {
ServerSocket server_socket = new ServerSocket(1000);
while (true) {
new Thread(new ClientWorker(server_socket.accept())).start();
}
} catch (IOException e) {
System.err.println("Error");
System.err.println(e);
System.err.println("\n2");
System.err.println(e.getMessage());
System.err.println("\n3");
System.err.println(e.getLocalizedMessage());
System.err.println("\n4");
System.err.println(e.getCause());
System.err.println("\n5");
System.err.println(Arrays.toString(e.getStackTrace()));
System.err.println("\n6");
e.printStackTrace();
}
}
}
class ClientWorker implements Runnable {
private Socket target_socket;
private DataInputStream din;
private DataOutputStream dout;
public ClientWorker(Socket recv_scket) {
try {
target_socket = recv_scket;
din = new DataInputStream(target_socket.getInputStream());
dout = new DataOutputStream(target_socket.getOutputStream());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Override
public void run() {
while (true) {
byte[] initilize = new byte[1];
try {
din.read(initilize, 0, initilize.length);
if (initilize[0] == 2) {
//This is line 67.
System.out.println(new String(readStream()));
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
private byte[] readStream() {
byte[] data_buff = null;
try {
int b = 0;
String buff_length = "";
while ((b = din.read()) != 4) {
buff_length += (char) b;
}
int data_length = Integer.parseInt(buff_length);
data_buff = new byte[Integer.parseInt(buff_length)];
int byte_read = 0;
int byte_offset = 0;
while (byte_offset < data_length) {
byte_read = din.read(data_buff, byte_read, data_length - byte_offset);
byte_offset += byte_read;
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return data_buff;
}
}
答案 0 :(得分:-1)
您没有关闭套接字,因此您的操作系统会在JVM退出时重置它们。