자바 9 절 네트워크 프로 그래 밍 의 기초 지식
10888 단어 자바
/**
*
*
* TCP/IP
* IP Port( )
* IP :127.0.0.1
* 0-65535 ，0-1023
* UDP TCP
* TCP, (Transmission Control Protocol),
* UDP, (User Datagram Protocol),
*
* TCP UDP
* IP IP
* TCP, UDP
*
* Socket
* Socket
* Socket ， ，
* ，
*
* Socket ， ， IP Port
*
* Socket
* 1 Socket->
* 2 ( bind Socket )->
* 3 ( , Socket )->Socket
* 4 Socket( Socket ) ->
*
*
* Java
* java.net
* DatagramSocket UDP
* ServerSocket TCP
* Socket TCP
*
*
* UDP
* DatagramSocket
*
* public DatagramSocket()
* public DatagramSocket(int port)
* public DatagramSocket(int port, InetAddress laddr)
* close
* send(DatagramPacket p)
* receive(DatagramPacket p)
*
* DatagramPacket
* DatagramSocket ， DatagramPacket ，
* :
* public DatagramPacket(byte[] buf, int length)
* public DatagramPacket(byte[] buf, int length, InetAddress address, int prot)
* getInetAddress getPort
* getData getLength
*
* InetAddress
* InetAddress IP ， ""
*
* UDP
*
* UDP ， UDP ，
* start
*
*
*
* UDP
* 1
* 2 IP
* 3 ，
* :
* 1
* 2
* 3
* ：
* 1 ？
* 2 ?
* 3 Interent ？ IP ？
*
* IP
*
*
* TCP
* TCP
* ClientlSocket -> ServerSocket
* Socket -> client Socket
* Socket
*
* TCP TCP ：
* 1 ServerSocket, accept
* 2 Socket
* 3 ， Socket
* 4 Socket ( )
* 5 ， ， （2） (5)
*
*
* ServerSocket
* :
* public ServerSocket();
* public ServerSocket(int port)
* public ServerSocket(int port, int backlog)
* public ServerSocket(int port, int backlog, InetAddress bindAddr)
* close()
* accept
*
*
* Socket
* :
* public Socket();
* public Socket(String host, int port)
* public Socket(InetAddress address, int port)
* public Socket(String host, int port, InetAddress localAddr, int localPort)
* public Socket(InetAddress address, int port, InetAddress localAddr, int localPort)
* getInputStream getOutputStream
*
*
* TCP
* TCP ，TCP TCP
* Windows telnet TCP
* BufferedReader ，
* telnet
*
*
*
* TCP
* :
* ， ， ， "quit" ，
*
*
* TCP ：
* TCP ， ServerSocket.accept
* ，
* Socket ，
*
*
*
* netstat TCP
* TCP
*
*
* TCP
* ：
*
* :
* IP ， ，
*
*
*
* TCP
* ObjectInputStream ObjectOutputStream
*
* ObjectInputStream ObjectOutputStream ，TCP TCP
*
* : Java
*
*
* ASP, JSP
*
* Internet
* java.net URL, URLDeconder, URLEncoder, URLConnection, HttpURLConnection
*
*
* URL( )
* HTTP
* URL
*
* URLConnection HttpURLConnection
*
* URL(Uniform Resource Locator)
* URL : ， ， ，
* ：http://www.ituji.cn:8080/index.html
*
* URL, "/a.html" "./a.html" "../../a.html" "a.html"
*
* URL
* (+)
* 0-9 a-z A-Z
* ， ，
* (%), "+" %2B ， "=" %3D ， "&" %26 ， ， “ ” %D6%D0 ， " " %B9%FA
* ， %20 ， (+).
* java.net URLEncoder URLDecoder ， URL
*
*
* HTTP
* HTTP1.0
* -> -> ->
*
* HTTP1.1
* -> -> N -> ->
*
* HTTP
* ： ， ， .
* ：
* GET /articles/news/today.aps HTTP/1.1
* Accept:*
* Accept-Language:en-us
* Connection: Keep-Alive
* Host:location
* Referer: http://localhost/links.aps
* User-Agent: Mozilla/4.0(compatible; MSIE 5.5; Windows NT5.0)
* Accept-Encoding:gzip, deflate
*
* HTTP
* ： ， ，
* :
* HTTP/1.1 200 OK
* Server: Microsoft-IIS/5.0
* Date: Thu, 13 Jul 2000 05:46:53 GMT
* Content-Length: 2291
* Content-Type:text/html
* Set-Cookie: XXXXX; path=/;
* Cache-control:private
*
* <HTML>
* ................
* </HTML>
*
* HTTP
* Connection
* / ， ， Keep-Alive close
* Accept-Language
* ，
* Content-Length
* ( )
* Range
* ，
* 1): Range: bytes=100-599 100 599
* 2): Range: bytes=100- 100
* 3): Range: bytes=-100 100
* Content-Range:
* ， :
* Content-Range: bytes 2543-4532/7898
*
* URL
* ( MalformedURLException )
* public URL(String spec)
* public URL(String protocol, String host, int port, String file)
* public URL(String protocol, String host, int prot, String file, URLStreamHandler handler)
* public URL(URL context, String spec)
*
* getProtocol, getHost, getPort, getFile
*
* openConnection URLConnection
*
*
* URL setURLStreamHandlerFactory(URL StreamHandlerFactory fac)
*
* StreamHandlerFactory createURLStreamHandler(String protocol)
*
*
* URLConnection HttpURLConnection
* URLConnection HttpURLConnection
* URLConnection
* setRequestProperty
* getHeadFields
* getInputStream getOutputStream
* getHeaderFiled, getContentLength, getContentEncoding, getContentType
* HTTP HttpURLConnection ， HttpURLConnection disconnect
*
* : www.google.com HTTP Accept-Language ， www.google.com
*
*
* (1)
* 1 TCP, UDP ， TCP UDP
* 2 , Socket,
* 3 UDP
* 4 TCP Servicer :
* pw.println(strWord+"--->"+strEcho);
*
* pw.print(strWord+"--->"+strEcho+"\r
");
* pw.print(strWord+"--->"+strEcho+System.getProperty("line.separator"));
* ， ?
* 5 TCP ， ， ，
* ，
* 6 HTTP , web
* 7 HTTP Range Content-Range ，URL HttpURLConnection ， HTTP
*
*
*
* @(#)lesson9.java
*
* lesson9 application
*
* @author
* @version 1.00 2013/9/1
*/
public class lesson9 {
public static void main(String[] args) {
// TODO, add your application code
System.out.println("Hello World!");
}
}
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