Javase Network Programming

Objectinputstream/objectouputstream://Serialization class

Java.io.Serializable://Serialization interface

Transient://temporary, prevent serialization process.

Protocal:------------rule. Data format.

http: (application):-------------Hyper Text Transfer protocal Hypertext Transfer Protocol.

FTP (Application layer):-------------file transfer protocal.

TCP------------Transfer Control protocal, transmission protocol.

IP------------Internet protocal, network protocol.

Seven-layer protocol------------

OSI------------Open System Interconnect, development systems interconnect.

Physical layer: //RJ45

Data Link layer: //fddi

Network layer: //ip (Internet protocal)

Transport Layer: //tcp UDP

TCP: Connection-oriented, secure protocol, with acknowledgement (receipt), and orderly data.

TCP establishes a three-time handshake for a connection: two authentication processes.

UDP: No connection, no security, no fixed route.

callback layer: //rpc,remote procedure Call, remote procedure invocation.

Presentation layer: //IS encrypted

Application layer: //ftp,http https,smtp (Simple Mail transfer protocal)

View IP and Mac Physical Address:---------------------C:\>cmd c:\>ipconfig/all

Port--------------------ports.

0 ~ 65535//

0 ~ 1023//Reserved port

22//

80//

3306//mysql

1521//oracle

1433//sqlserver

0.0.0.0//Pass with IP address.

Ip:port

192.168.231.100:3306:0.0.0.0//3306

192.168.231.101:3306

View Port Usage-----------------

Nestat-ano

InetAddress://IP only, no port

Inetsocketaddress://inetaddress + port

DNS---------

Domain name resolution.

localhost//127.0.0.1

# Copyright (c) 1993-2009 Microsoft Corp.

C:\Windows\System32\drivers\etc\hosts---------------------------------------

127.0.0.1 localhost 192.168.231.100 s100 192.168.231.101 s101 192.168.231.102 s102 192.168.231.103 s103 192.168 .231.104 s104 192.168.231.105 s105 192.168.231.106 s106 192.168.231.107 s107 127.0.0.1 vinci.ie.sogou.com

windows kills processes.---------------------

1.taskkill/? View Help

2.taskkill/f/pid 1234//f: Forced PID: Process ID

3.taskkill/f/pid a/pid 2//Kill multiple processes

4.taskkill/f/im notepad.exe/t//Kill process tree, use image name

Build a Tomcat Web server-----------------------

1. Download the tomcat zip file. Apache-tomcat-7.0.72.zip

2. Unzip.

3. Start the Tomcat server ${tomcat_home}\bin\startup.bat

4. View the Tomcat server listening port 8080 Netstat-ano

5. Open the Web browser http://localhost:8080/

4. Stop server A.ctrl + C B.${tomcat_home}\bin\shutdown.bat

5. Publish the resource on the server. Copy the file (clip) to ${tomcat_home}\webapps\root\.

6. Access resources on the Tomcat server through a browser. Http://locahost:9090/111.txt

Url:uniform Resource Locator-----------------------------

Uniform Resource Locator.

Schema://domainname:port/path?querystring

http://www.baidu.com/

Http://192.168.21.34:9090/ziling.mp3

URLConnection conn = url.openconnection ()//Open connection

Conn.getcontentlength ()//Get resource size

Conn.getcontenttype ()//Get resource type

Uri:uniform Resource Identifier--------------------------------

The Uniform Resource Identifier. mailto

Create a TCP/IP monitor in eclipse. ------------------------------

Eclipse--Windows--preferences, Run/debug-->TCP/IP Monitor

Javase Network Programming