发布时间 : 星期日 文章(完整word版)Java知识总结完整版,推荐文档更新完毕开始阅读42c9f84f148884868762caaedd3383c4ba4cb456
} }
class Consumer implements Runnable { LanZi lz = null;
Consumer(LanZi lz) {this.lz = lz;} public void run() {
for(int i=0;i<20;i++) { ManTou mt = lz.pop();
System.out.println(\消费了：\
try{Thread.sleep((int)(Math.random() * 1000));} catch (InterruptedException e){ e.printStackTrace();} } } }
wait与sleep
wait时别的线程可以访问锁定对象（调用wait方法的时候必须锁定该对象） sleep时别的线程也不可以访问锁定对象
第10章 网络编程
参考模型
OSI参考模型 TCP/IP参考模型
应用层 应用层 传输层 表示层 网络层 会话层 物理+数据链路传输层 层 网络层 数据链路层 物理层 IP(Internet Protocol)
TCP(transmission control protocol) UDP(user data protocol)
Socket（插座的意思）
两个Java应用程序可通过一个双向的网络通信连接实现数据交换，这个双向链路的一端称为一个Socket
Soclet通常用来实现client-server连接
java.net包中定义的两个类Socket和ServerSoclet，分别用来实现双向连接的client和server端
建立连接时所需要的寻址信息为远程基选集的IP地址和端口号（Port number） TCP端口UDP端口是分开的，每一个有65536个端口（建议使用1024以后的）
TCP Socket通信模型 Server Clicent ------------------------------------------------------------------------------ ServerSocket ss(port #) Socket s(host,port #) ss.accept() //等待连接 (Attempt to connect) --------------------------------------- Socket对象 OutputStream --------------------------------------- OutputStream InputStream --------------------------------------- InputStream socket.close() --------------------------------------- socket.close() import java.net.*; import java.io.*;
public class TCPServer {
public static void main(String[] args) throws Exception { ServerSocket ss = new ServerSocket(6666); while(true) {
Socket s = ss.accept(); DataInputStream dis = DataInputStream(s.getInputStream());
System.out.println(dis.readUTF());//阻塞的 dis.close(); s.close();
//System.out.println(\ } } }
import java.net.*; import java.io.*;
public class TCPClient{
public static void main(String[] args) throws Exception { Socket s = new Socket(\ OutputStream os = s.getOutputStream();
DataOutputStream dos = new DataOutputStream(os); dos.writeUTF(\
new
dos.flush(); dos.close(); s.close(); } }
import java.io.*; import java.net.*;
import java.applet.Applet; public class talkserver {
public static void main(String args[]) {
try {
ServerSocket server = null; try {
server = new ServerSocket(4700); }catch(Exception e) {
System.out.println(\ }
Socket socket = null; try {
socket = server.accept(); }catch(Exception e) {
System.out.println(\ }
String line; BufferedReader is = new BufferedReader(new InputStreamReader( socket.getInputStream()));
PrintWriter os = new PrintWriter(socket.getOutputStream()); BufferedReader sin = new BufferedReader(new InputStreamReader(System.in));
System.out.println(\ line = sin.readLine();
while (!line.equals(\ {
os.println(line); os.flush();
System.out.println(\
System.out.println(\
line = sin.readLine(); }
is.close(); os.close(); socket.close(); server.close(); }catch(Exception e) {
System.out.println(\ } } }
import java.io.*; import java.net.*;
public class talkclient {
public static void main(String args[]) {
try {
Socket socket = new Socket(\ BufferedReader sin = new BufferedReader(new InputStreamReader(System.in));
PrintWriter os = new PrintWriter(socket.getOutputStream()); BufferedReader is = new BufferedReader(new InputStreamReader( socket.getInputStream())); String readline;
readline = sin.readLine();
while (!readline.equals(\ {
os.println(readline); os.flush();
System.out.println(\
System.out.println(\ readline = sin.readLine(); }
os.close(); is.close(); socket.close(); }catch(Exception e) {
System.out.println(\ }