Exception in thread "main" java.net.SocketException: socket closed
at java.net.PlainSocketImpl.socketAccept(Native Method)
at java.net.PlainSocketImpl.accept(Unknown Source)
at java.net.ServerSocket.implAccept(Unknown Source)
at java.net.ServerSocket.accept(Unknown Source)
at ServerApp.<init>(ServerApp.java:16)
at ServerApp.main(ServerApp.java:66)
是不是说我socket 已经关闭了?
at java.net.PlainSocketImpl.socketAccept(Native Method)
at java.net.PlainSocketImpl.accept(Unknown Source)
at java.net.ServerSocket.implAccept(Unknown Source)
at java.net.ServerSocket.accept(Unknown Source)
at ServerApp.<init>(ServerApp.java:16)
at ServerApp.main(ServerApp.java:66)
是不是说我socket 已经关闭了?
用ECHO看看线程的返回值估计能找到错误所在
server端的
import java.io.*;
import java.net.*;
public class ServerApp {
static final int PORT=9000;
private ServerSocket serverSocket;
private Socket socket;
private BufferedReader netIn;
private PrintWriter netOut;
public ServerApp() throws IOException {
serverSocket=new ServerSocket(PORT);
System.out.println("server start");
while(true){
socket=serverSocket.accept();
ServerThread st=new ServerThread(socket);
new Thread(st).start();
}
}
class ServerThread implements Runnable{
private Socket socket;
private int randomNumber;
private int clientGuessNumber;
public ServerThread(Socket s)throws IOException{
socket=s;
netIn=new BufferedReader(new InputStreamReader(socket.getInputStream()));
netOut=new PrintWriter(socket.getOutputStream());
}
public void run(){
System.out.println("client"+socket.getInetAddress()+" is connect");
randomNumber=(int)(Math.random()*100);
System.out.println("random number is:"+randomNumber);
try{
clientGuessNumber=Integer.parseInt(netIn.readLine());
System.out.println("client guess number is:"+clientGuessNumber);
for(int i=3;i>0;i--){
if (clientGuessNumber==randomNumber){
netOut.println("恭喜,猜对了");
ClientApp.finished=true;
}
else if(clientGuessNumber<randomNumber){
netOut.println("您猜的数小了,您还有"+(i-1)+"次机会");
ClientApp.finished=false;
}
else if(clientGuessNumber>randomNumber){
netOut.println("您猜的数大了,您还有"+(i-1)+"次机会");
ClientApp.finished=false;
}
clientGuessNumber=Integer.parseInt(netIn.readLine());
}
}catch(IOException e){}
finally {
try{
netOut.close();
netIn.close();
serverSocket.close();
socket.close();
}catch(IOException ee){}
}
}
}
public static void main(String[] args)throws IOException{
new ServerApp();
}
}client端的
import java.io.*;
import java.net.*;
public class ClientApp {
private Socket socket;
private BufferedReader netIn;
private PrintWriter netOut;
private BufferedReader keyboardIn;
static Boolean finished=false;
public ClientApp() throws IOException{
System.out.println("请输入服务器地址,连接本地服务器请输入localhost");
keyboardIn=new BufferedReader(new InputStreamReader(System.in));
try{
if(keyboardIn.readLine().equalsIgnoreCase("localhost")){
socket=new Socket(InetAddress.getLocalHost(),ServerApp.PORT);
}
else{
socket=new Socket(InetAddress.getByName(keyboardIn.readLine()),ServerApp.PORT);
}
}catch(UnknownHostException e){
System.err.println("连接不到服务器");
System.exit(-1);
}
System.out.println("连接成功");
while(!finished){
System.out.println("请输入0-100之间的数字");
netOut.println(keyboardIn.readLine());
netIn.readLine();
}
netIn.close();
netOut.close();
keyboardIn.close();
socket.close();
}
public static void main(String[] args)throws IOException{
new ClientApp();
}
}
import java.net.*;
public class ServerApp {
static final int PORT=9000;
private ServerSocket serverSocket;
private Socket socket;
private BufferedReader netIn;
private PrintWriter netOut;
public ServerApp() throws IOException {
serverSocket=new ServerSocket(PORT);
System.out.println("server start");
while(true){
socket=serverSocket.accept();
ServerThread st=new ServerThread(socket);
new Thread(st).start();
}
}
class ServerThread implements Runnable{
private Socket socket;
private int randomNumber;
private int clientGuessNumber;
public ServerThread(Socket s)throws IOException{
socket=s;
netIn=new BufferedReader(new InputStreamReader(socket.getInputStream()));
netOut=new PrintWriter(socket.getOutputStream());
}
public void run(){
System.out.println("client"+socket.getInetAddress()+" is connect");
randomNumber=(int)(Math.random()*100);
System.out.println("random number is:"+randomNumber);
try{
clientGuessNumber=Integer.parseInt(netIn.readLine());
System.out.println("client guess number is:"+clientGuessNumber);
for(int i=3;i>0;i--){
if (clientGuessNumber==randomNumber){
netOut.println("恭喜,猜对了");
ClientApp.finished=true;
}
else if(clientGuessNumber<randomNumber){
netOut.println("您猜的数小了,您还有"+(i-1)+"次机会");
ClientApp.finished=false;
}
else if(clientGuessNumber>randomNumber){
netOut.println("您猜的数大了,您还有"+(i-1)+"次机会");
ClientApp.finished=false;
}
clientGuessNumber=Integer.parseInt(netIn.readLine());
}
}catch(IOException e){}
finally {
try{
netOut.close();
netIn.close();
serverSocket.close();
socket.close();
}catch(IOException ee){}
}
}
}
public static void main(String[] args)throws IOException{
new ServerApp();
}
}客户端的import java.io.*;
import java.net.*;
public class ClientApp {
private Socket socket;
private BufferedReader netIn;
private PrintWriter netOut;
private BufferedReader keyboardIn;
static Boolean finished=false;
public ClientApp() throws IOException{
System.out.println("请输入服务器地址,连接本地服务器请输入localhost");
keyboardIn=new BufferedReader(new InputStreamReader(System.in));
try{
if(keyboardIn.readLine().equalsIgnoreCase("localhost")){
socket=new Socket(InetAddress.getLocalHost(),ServerApp.PORT);
}
else{
socket=new Socket(InetAddress.getByName(keyboardIn.readLine()),ServerApp.PORT);
}
}catch(UnknownHostException e){
System.err.println("连接不到服务器");
System.exit(-1);
}
System.out.println("连接成功");
while(!finished){
System.out.println("请输入0-100之间的数字");
netOut.println(keyboardIn.readLine());
netIn.readLine();
}
netIn.close();
netOut.close();
keyboardIn.close();
socket.close();
}
public static void main(String[] args)throws IOException{
new ClientApp();
}
}
里面,你为什么把ServerSocket也关掉了??
} finally {
try {
netOut.close();
netIn.close();
// serverSocket.close();
socket.close();
} catch (IOException ee) {
}
}
import java.net.*;public class ServerApp { static final int PORT = 9000;
private ServerSocket serverSocket;
private Socket socket;
private BufferedReader netIn;
private PrintWriter netOut; public ServerApp() throws IOException {
serverSocket = new ServerSocket(PORT);
System.out.println("server start");
while (true) { socket = serverSocket.accept();
ServerThread st = new ServerThread(socket);
new Thread(st).start(); }
} class ServerThread implements Runnable {
private Socket socket;
private int randomNumber;
private int clientGuessNumber; public ServerThread(Socket s) throws IOException {
socket = s;
netIn = new BufferedReader(new InputStreamReader(socket.getInputStream()));
netOut = new PrintWriter(socket.getOutputStream());
} public void run() {
System.out.println("client" + socket.getInetAddress() + " is connect");
randomNumber = (int) (Math.random() * 100);
System.out.println("random number is:" + randomNumber);
try {
clientGuessNumber = Integer.parseInt(netIn.readLine());
System.out.println("client guess number is:" + clientGuessNumber);
for (int i = 3; i > 0; i--) {
if (clientGuessNumber == randomNumber) {
netOut.println("恭喜,猜对了");
ClientApp.finished = true;
} else if (clientGuessNumber < randomNumber) {
netOut.println("您猜的数小了,您还有" + (i - 1) + "次机会");
ClientApp.finished = false;
} else if (clientGuessNumber > randomNumber) {
netOut.println("您猜的数大了,您还有" + (i - 1) + "次机会");
ClientApp.finished = false;
}
netOut.flush(); // 这里得刷新
clientGuessNumber = Integer.parseInt(netIn.readLine());
if (ClientApp.finished) { // 这里得判断退出
break;
}
} } catch (IOException e) {
} finally {
try {
netOut.close();
netIn.close();
// serverSocket.close(); // 这里去掉了
socket.close();
} catch (IOException ee) {
}
}
} } public static void main(String[] args) throws IOException {
new ServerApp();
}
}package test;import java.io.*;
import java.net.*;public class ClientApp {
private Socket socket;
private BufferedReader netIn;
private PrintWriter netOut;
private BufferedReader keyboardIn;
static Boolean finished = false; public ClientApp() throws IOException {
System.out.println("请输入服务器地址,连接本地服务器请输入localhost");
keyboardIn = new BufferedReader(new InputStreamReader(System.in));
try {
if (keyboardIn.readLine().equalsIgnoreCase("localhost")) {
socket = new Socket(InetAddress.getLocalHost(), ServerApp.PORT);
} else {
socket = new Socket(InetAddress.getByName(keyboardIn.readLine()), ServerApp.PORT);
}
netIn = new BufferedReader(new InputStreamReader(socket.getInputStream())); // 这里得初始化
netOut = new PrintWriter(socket.getOutputStream());// 这里得初始化
} catch (UnknownHostException e) {
System.err.println("连接不到服务器");
System.exit(-1);
}
System.out.println("连接成功");
while (!finished) {
System.out.println("请输入0-100之间的数字");
netOut.println(keyboardIn.readLine());
netOut.flush(); // 这里的刷新
System.out.println(netIn.readLine()); // 这里得输出服务器端的输出
}
netIn.close();
netOut.close();
keyboardIn.close();
socket.close();
} public static void main(String[] args) throws IOException {
new ClientApp();
}
}