java网络编程复习资料new

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1、Socket编程客户端代码：publicclassClient{privateStringhost="127.0.0.1";privateintport=8000;privateSocketsocket;/**CreatesanewinstanceofClinet*/publicClient(){try{Socketsocket=newSocket(host,port);InputStreamis=socket.getInputStream();InputStreamReaderisr=newInputStreamReader(is);BufferedReaderbr

2、=newBufferedReader(isr);System.out.println(br.readLine());}catch(UnknownHostExceptione){e.printStackTrace();}catch(IOExceptione){e.printStackTrace();}}publicstaticvoidmain(String[]args){Clientclient=newClient();}}服务器端代码：ServerpublicServer(){try{serverSocket=newServerSocket(port);System.

3、out.println("服务器已启动"+serverSocket.getInetAddress().toString());}catch(IOExceptione){e.printStackTrace();}}publicvoidservice(){while(true){try{Socketsocket=serverSocket.accept();System.out.println("有新连接，IP客户端IP是"+socket.getInetAddress().toString()+",端口是"+socket.getPort()+"");OutputStream

4、os=socket.getOutputStream();PrintWriterpw=newPrintWriter(os);pw.write("欢迎登录！");pw.flush();}catch(IOExceptione){e.printStackTrace();}}}publicstaticvoidmain(String[]args){//TODOcodeapplicationlogichereServerserver=newServer();server.service();}单线程编程：publicclassTalkThreadextendsThread{priv

5、ateintsleeptime;publicTalkThread(){sleeptime=(int)(Math.random()*5000);}publicvoidrun(){System.err.println(this.getName()+"isgoingtostart,itwillsleepfor"+sleeptime+"ms");try{Thread.sleep(sleeptime);}catch(Exceptione){e.printStackTrace();}System.err.println(this.getName()+"wakedup!");}}多

6、线程编程：publicclassMulitiThreadDemo{publicMulitiThreadDemo(){}publicstaticvoidmain(String[]args){TalkThreadtalkThread1=newTalkThread();TalkThreadtalkThread2=newTalkThread();TalkThreadtalkThread3=newTalkThread();TalkThreadtalkThread4=newTalkThread();System.err.println("Threadisstarting...")

7、;talkThread1.start();talkThread2.start();talkThread3.start();talkThread4.start();System.err.println("Threadstarted!");}}JavaMailpublicclassSendMail{publicstaticvoidmain(String[]args)throwsMessagingException{Stringsmtphost="smtp.google.com";Stringuser="test";Stringpwd="123123";S