java网络数据传输问题求解
0
[待解决问题]
客户端代码
import java.io.*;
import java.net.Socket;
/**
* Created by apple on 17-6-7.
* 多线程版本
* 让程序能够支持客户端一边输入一边接收来自服务端的消息
*/
public class TCPClient2 { //testClient
public static void main(String[] args){
Client sparkClient = new Client("Spark", "127.0.0.1", 8888);
}
}
class Client{
private static int totalNum = 0; //记录连接的客户端总数量
private Socket clientSock;
private String userName; //客户端用户名
private final int ID = ++totalNum; //标识客户端唯一的号码，类似QQ号，且一经注册变不可改变
private BufferedReader clientReader; //客户端读入流
private BufferedReader userInputReader;
private PrintWriter clientWriter; //客户端向服务端的输出流
private String clientInput; //客户端读入的数据，即从服务端传来的数据
private String userInput;
private Thread inputThread = new Thread(new ClientRead()); //监控输入的线程
private Thread outputThread = new Thread(new ClientWrite()); //监控输出的线程
/*public Client(String userName, Socket sock){
//this(userName, (String)sock.getInetAddress(), sock.getPort());
//??????????
clientSock = sock;
}*/
public Client(String userName, String ipAddress, int port){
try{
//id = ++totalNum;
clientSock = new Socket(ipAddress, port);
this.userName = userName;
clientReader = new BufferedReader(new InputStreamReader(clientSock.getInputStream()));
clientWriter = new PrintWriter(clientSock.getOutputStream(), true);
userInputReader = new BufferedReader(new InputStreamReader(System.in));
inputThread.start();
outputThread.start();
System.out.println("Connected, just enjoy the communication!");
} catch (IOException e){
e.printStackTrace();
System.exit(-1);
}
}
public Client(){
this("Durant", "127.0.0.1", 8888);
//this((Socket) ("Spark","127.0.0.1", 8888));
} //尝试随机产生类似QQ号的号码，用户名可以重复
protected void finalize(){close();}
//getter
public Socket getSocket(){
return clientSock;
}
public int getID (){return ID;}
public String getUserName(){return userName;}
//public String getClientInput(){return clientInput;}
//public BufferedReader getClientReader(){return clientReader;}
//public PrintWriter getClientOutput(){return clientWriter;}
public String getUserInput(){ //客户端接受用户的输入作为写入服务端的信息
//inputHint();
try{
userInput = userInputReader.readLine();
}catch (IOException e){
e.printStackTrace();
System.exit(-1);
}
return userInput;
}
//setter
public void setSocket(Socket sock){
clientSock = sock;
}
public void setUserName(String userName){this.userName = userName;}
//从客户端读入来自服务端或用户写入的数据
public String read(){
try {
clientInput = clientReader.readLine(); //将服务端写入的数据读入进来
}catch (IOException e){
e.printStackTrace();
System.exit(-1);
}
return clientInput;
}
//从客户端写入数据到服务端
public void write(){
getUserInput();
clientWriter.println(userInput);
clientWriter.flush();
// clientOutput.flush();
}
//将服务端传来的消息打印出来
public void printServerMessage(){
System.out.println("Server:" + clientInput);
}
public void printClientMessage(){
System.out.println("Client:" + userInput);
}
public void printServerDisconnected() { System.out.println("Sorry, the server is disconnected!"); }
public void printClientDisconnected() { clientWriter.println("User#" + ID + ", " + userName + "is disconnected!"); }
public void close(){
try{
clientSock.close();
clientReader.close();
userInputReader.close();
clientWriter.close();
}catch (IOException e){
e.printStackTrace();
System.exit(-1);
}
}
//判断服务器是否仍在连接中
public boolean serverIsConnected(){
return !clientInput.equals("bye");
}
public boolean clientIsConnected(){
return !getUserInput().equals("bye");
}
//实现线程的方法————时刻准备接收来自服务端的消息
public class ClientRead implements Runnable {
public void run() {
read();
while (clientReader != null && serverIsConnected() && clientInput.length()!=0) {
printServerMessage();
read();
}
printServerDisconnected();
}
}
//实现线程的方法————时刻准备向服务端发送消息
class ClientWrite implements Runnable{
public void run() {
write();
while (userInputReader != null && clientIsConnected() && userInput.length()!=0){
//printClientMessage();
write();
}
printClientDisconnected();
}
}
}
服务端代码：
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
/**
* Created by apple on 17-6-7.
* 多线程版本
* 让程序能够支持客户端一边输入一边接收来自服务端的消息
*/
public class TCPServer {
public static void main(String[] args){
Server sparkServer = new Server("Curry", 8888);
}
}
class Server{
private ServerSocket serverSock;
private Socket clientSock;
private String serverName; //服务端名
private BufferedReader serverReader; //服务端读入流
private BufferedReader userInputReader;
private PrintWriter serverWriter; //服务端向客户端的输出流
private String serverInput; //服务端读入的数据，即从客户端传来的数据
private String userInput;
private Thread inputThread = new Thread(new ServerRead()); //监控输入的线程
private Thread outputThread = new Thread(new ServerWrite()); //监控输出的线程
public Server(String serverName, int port){
try{
this.serverName = serverName;
serverSock = new ServerSocket(port);
clientSock = serverSock.accept();
serverReader = new BufferedReader(new InputStreamReader(clientSock.getInputStream()));
userInputReader = new BufferedReader(new InputStreamReader(System.in));
serverWriter = new PrintWriter(clientSock.getOutputStream(), true);
inputThread.start();
outputThread.start();
}catch (IOException e){
e.printStackTrace();
System.exit(-1);
}
}
public Server(){
this("SuperQQ", 8888);
}
protected void finalize(){close();}
//getter
public ServerSocket getServerSocket(){
return serverSock;
}
public String getServerName(){return serverName;}
public String getUserInput(){
try{
userInput = userInputReader.readLine();
}catch (IOException e){
e.printStackTrace();
System.exit(-1);
}
return userInput;
}
//setter
public void setServerSocket(ServerSocket serverSock){
this.serverSock = serverSock;
}
public void setServerSocket(int port){
try{
serverSock = new ServerSocket(port);
}catch (IOException e){
e.printStackTrace();
System.exit(-1);
}
}
//接收客户端以及用户在控制台的输入传入服务端
public String read(){
try {
serverInput = serverReader.readLine(); //将客户端写入的数据读入进来
}catch (IOException e){
e.printStackTrace();
System.exit(-1);
}
return serverInput;
}
//从服务端写入数据到客户端
public void write(){
getUserInput();
serverWriter.println(userInput);
serverWriter.flush();
}
//将客户端传来的消息打印出来
public void printClientMessage(){
System.out.println("Client:" + serverInput);
}
//将服务端写的消息打印出来
public void printServerMessage() { System.out.println("Server:" + userInput); }
public void close(){
try {
serverWriter.close();
userInputReader.close();
serverReader.close();
serverSock.close();
}catch (IOException e){
e.printStackTrace();
System.exit(-1);
}
}
//判断服务器是否仍在连接中
public boolean serverIsConnected(){
return !serverInput.equals("bye");
}
public boolean clientIsConnected(){
return !getUserInput().equals("bye");
}
//实现线程的方法————时刻准备接收来自客户端的消息
public class ServerRead implements Runnable {
public void run() {
read();
while (serverReader != null && serverIsConnected() && serverInput.length()!=0) {
printClientMessage();
read();
}
//printServerDisconnected();
}
}
//实现线程的方法————时刻准备向服务端发送消息
class ServerWrite implements Runnable{
public void run() {
write();
while (userInputReader != null && clientIsConnected() && userInput.length()!=0){
//printServerMessage();
write();
}
//printClientDisconnected();
}
}
}
最后总是按两下回车才有一次显示，而且总是显示不正确。。。希望各位大神能帮帮忙了，谢谢~
