java課件Socket套接字編程基于Tcp ip協(xié)議兩個(gè)程序互相通

Socket-基于Tcp/ip協(xié)議的--Url/Connection/-基于HTTP--HTTP協(xié)議就是長(zhǎng)這樣：http:HyperTextTransportProtocolSocket-主要關(guān)心就是Tcp（傳輸）/ip網(wǎng)絡(luò)地址1：J.*包。SoketTCP/IP/UPD:.ServerSocket--DatagramPackate-開發(fā)一個(gè)服務(wù)器，就是實(shí)例化一個(gè)publicclassServer01publicstaticvoidmain(String[]args)throwsException//1:服務(wù)器，且指定對(duì)外公開的端(1~65535)是多少ServerSocketss=newServerSocket(8888);Socket=ss.accept(); }}publicstaticvoidmain(String[]args)throwsException//1:服務(wù)器，且指定對(duì)外公開的端(1~65535)是多ServerSocketss=new2:等待用戶的連接，在等待時(shí)會(huì)阻塞程序的執(zhí)行，真到有客戶連接成功，才會(huì)向后執(zhí)行Socket=ss.accept();//3:只要有用戶，就輸出這個(gè)客戶端面的信//4:從(客戶端面)中獲取客戶端的所有信息InputStreamin=.getInputStream();byte[]bs=newbyte[1024];intlen=while((len=in.read(bs))!=-1){Stringstr=newString(bs,0,len);}}GETHTTP/1.1//Host:34:8888//Connection:keep-aliveCache-Control:max-age=0Upgrade-Insecure-Requests:1Chrome/52.0.2739.0Safari/537.36//Accept:text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8Accept-Encoding:gzip,deflate,sdch publicclassServer02publicstaticvoidmain(String[]args)throwsException{ServerSocketss=newServerSocket(9999);Socket=InputStreamin=byte[]bs=newbyte[1024];intlen=0;while((len=in.read(bs))!=-1){Stringstr=newString(bs,0,len);}}}publicclass02publicstaticvoidmain(String[]args)throwsException{SocketsocketnewSocket("9999);//連接服務(wù)器OutputStreamout=out.write("o你好".getBytes());}}接收用戶的輸入-publicclassServer02publicstaticvoidmain(String[]args)throwsExceptionServerSocketss=newServerSocket(9999);Socket=ss.accept();InputStreamin=byte[]bs=newbyte[1024];intlen=0;while(true)while((len=in.read(bs))!=-1){Stringstr=newString(bs,0,len);}}}}publicclass02publicstaticvoidmain(String[]args)throwsException{SocketsocketnewSocket("9999);//連接服務(wù)器OutputStreamout=Scannersc=newStringstr=sc.nextLine();}}}publicstaticvoidmain(String[]args)throwsException{ServerSocketss=newServerSocket(9999);Socket=InputStreamin=BufferedReaderbr=newBufferedReader(newInputStreamReader(in));Stringstr=null;str=br.readLine();//此時(shí)會(huì)阻塞的方式來(lái)數(shù)}}}publicclass02publicstaticvoidmain(String[]args)throwsExceptionSocketsocketnewSocket("9999);//連接服務(wù)器OutputStreamout=PrintStreamps=newPrintStream(out,true,"UTF-8");Scannersc=newScanner(System.in);Stringstr=sc.nextLine();}}}}packageimportjava.io.BufferedReader;importjava.io.InputStreamReader;importjava.io.PrintStream;import.ServerSocket;import.Socket;publicclassServer03//1:兩個(gè)客戶privateSocketprivateSocketpublicServer03()throwsException//2:服務(wù)ServerSocketss=new1=2=newnew}3:1classThread1extendsThread{publicvoidrun()try1BufferedReaderbr=newBufferedReader(newInputStreamReader(1.getInputStream()));2PrintStreamps=newPrintStream(while(true)Stringstr=br.readLine();}}}catch(Exceptione){}}}3:2classThread2extendsThread{publicvoidrun()try1BufferedReaderbr=newBufferedReader(newInputStreamReader(2.getInputStream()));2PrintStreamps=newPrintStream(while(true)Stringstr=br.readLine();}}}catch(Exceptione){}}}publicstaticvoidmain(String[]args)throwsExceptionnew}}packagecn.importjava.io.BufferedReader;importjava.io.InputStreamReader;importjava.io.PrintStream;import.Socket;importpublicclass03Scannersc=newScanner(System.in);Socketsocket;public03()throwsExceptionsocket=newSocket("",newnew}classThreadScannerextendsThread{publicvoidrun()tryPrintStreamps=newwhile(true)System.err.println("plzentersthtoanthor:");Stringstr=sc.nextLine();}}}catch(Exceptione){}}}classServerThreadextendsThread{publicvoidrun()tryBufferedReaderbr=newBufferedReader(newwhile(true)Stringstr=br.readLine();}}}catch(Exceptione)}}}publicstaticvoidmain(String[]args)throwsExceptionnew}}-packageimportjava.io.BufferedReader;importjava.io.InputStreamReader;importjava.io.PrintStream;import.ServerSocket;import.Socket;publicclassServer03//1:兩個(gè)客戶privateSocketprivateSocketpublicServer03()throwsException//2:服務(wù)ServerSocketss=new1=2=newThread1(1,newThread1(2,}3:1classThread1extendsThread{privateSocketform;privateSocketto;publicThread1(Socketf,Sockett)this.to=}publicvoidrun()try1BufferedReaderbr=new2PrintStreamps=newPrintStream(to.getOutputStream(),true,"GBK");while(true){Stringstr=br.readLine();}}}catch(Exceptione){}}}publicstaticvoidmain(String[]args)throwsExceptionnew}}9：urlURLUniqueResourceLocationurl 將這個(gè)用java代碼到本地packagecn.importjava.io.FileOutputStream;importjava.io.InputStream;importjava.io.OutputStream;.HttpURLConnection;importimportpublicclassDemo01_Url{publicvoidtest11()throwsException{String=" Stringaddr="ht .cn"+"/WebServices/CodeWS.asmx/getCodeInfo?Code="++"&userID=";URLurl=newURL(addr);HttpURLConnectioncon=(HttpURLConnection)//3:的方//設(shè)置可以服務(wù)器返回的io流intcode=if(code==200)獲取InputStreamin=byte[]bs=newbyte[1024*intlen=while((len=in.read(bs))!=-1){Stringstr=newString(bs,0,len);}}