新建两个工程,一个客户端,一个服务端,先启动服务端再启动客户端
两个工程的读写操作线程类基本上完全相同
服务端:
代码如下 | 复制代码 |
importjava.io.BufferedReader; importjava.io.DataInputStream; importjava.io.DataOutputStream; importjava.io.IOException; importjava.io.InputStreamReader; importjava.net.ServerSocket; importjava.net.Socket;
publicclassServer {
publicstaticfinalintPORT =8000;//监听的端口号
publicstaticvoidmain(String[] args) { Server server =newServer(); server.init(); }
publicvoidinit() { ServerSocket serverSocket =null; try{ serverSocket =newServerSocket(PORT); while(true) { Socket client = serverSocket.accept(); //一个客户端连接就开户两个线程处理读写 newThread(newReadHandlerThread(client)).start(); newThread(newWriteHandlerThread(client)).start(); } }catch(Exception e) { e.printStackTrace(); }finally{ try{ if(serverSocket !=null){ serverSocket.close(); } }catch(IOException e) { e.printStackTrace(); } } } }
/* *处理读操作的线程 */ class ReadHandlerThread implements Runnable{ private Socket client;
public ReadHandlerThread(Socket client) { this.client = client; }
@Override public void run() { DataInputStream dis = null; try{ while(true){ //读取客户端数据 dis = new DataInputStream(client.getInputStream()); String reciver = dis.readUTF(); System.out.println("客户端发过来的内容:" + reciver); } }catch(Exception e){ e.printStackTrace(); }finally{ try { if(dis != null){ dis.close(); } if(client != null){ client = null; } } catch (IOException e) { e.printStackTrace(); } } } }
/* * 处理写操作的线程 */ classWriteHandlerThreadimplementsRunnable{ privateSocket client;
publicWriteHandlerThread(Socket client) { this.client = client; }
@Override publicvoidrun() { DataOutputStream dos =null; BufferedReader br =null; try{ while(true){ //向客户端回复信息 dos =newDataOutputStream(client.getOutputStream()); System.out.print("请输入:\t"); // 键盘录入 br =newBufferedReader(newInputStreamReader(System.in)); String send = br.readLine(); //发送数据 dos.writeUTF(send); } }catch(Exception e){ e.printStackTrace(); }finally{ try{ if(dos !=null){ dos.close(); } if(br !=null){ br.close(); } if(client !=null){ client =null; } }catch(IOException e) { e.printStackTrace(); } } } } |
客户端:
代码如下 | 复制代码 |
importjava.io.BufferedReader; importjava.io.DataInputStream; importjava.io.DataOutputStream; importjava.io.IOException; importjava.io.InputStreamReader; importjava.net.Socket;
publicclassClient {
publicstaticfinalString IP ="localhost";//服务器地址 publicstaticfinalintPORT =8000;//服务器端口号
publicstaticvoidmain(String[] args) { handler(); }
privatestaticvoidhandler(){ try{ //实例化一个Socket,并指定服务器地址和端口 Socket client =newSocket(IP, PORT); //开启两个线程,一个负责读,一个负责写 newThread(newReadHandlerThread(client)).start(); newThread(newWriteHandlerThread(client)).start(); }catch(Exception e) { e.printStackTrace(); } } }
/* *处理读操作的线程 */ class ReadHandlerThread implements Runnable{ private Socket client;
public ReadHandlerThread(Socket client) { this.client = client; }
@Override public void run() { DataInputStream dis = null; try { while(true){ //读取服务器端数据 dis = new DataInputStream(client.getInputStream()); String receive = dis.readUTF(); System.out.println("服务器端返回过来的是: " + receive); } } catch (IOException e) { e.printStackTrace(); } finally{ try { if(dis != null){ dis.close(); } if(client != null){ client = null; } } catch (IOException e) { e.printStackTrace(); } } } }
/* * 处理写操作的线程 */ classWriteHandlerThreadimplementsRunnable{ privateSocket client;
publicWriteHandlerThread(Socket client) { this.client = client; }
@Override publicvoidrun() { DataOutputStream dos =null; BufferedReader br =null; try{ while(true){ //取得输出流 dos =newDataOutputStream(client.getOutputStream()); System.out.print("请输入: \t"); //键盘录入 br =newBufferedReader(newInputStreamReader(System.in)); String send = br.readLine(); //发送数据 dos.writeUTF(send); } }catch(IOException e) { e.printStackTrace(); }finally{ try{ if(dos !=null){ dos.close(); } if(br !=null){ br.close(); } if(client !=null){ client =null; } }catch(Exception e){ e.printStackTrace(); } } } } |