| 发表于：2007-02-09 18:36:32 楼主 |
//server.java
//////////////////////////////////////
package javanet;
import java.net.*;
import java.io.*;
public class server {
// create a server
private serversocket server;
private int clientcount=0;
/** creates a new instance of server */
public server（) {
try {
while（true){
server=new serversocket（8086);
system.out.println（ "正在等待客户的连接： ");
socket connecttoclient=server.accept（);
clientcount++;
system.out.println（ "客户 "+clientcount+ "已经连接上，服务器应答就绪： ");
handleaclient thread=new handleaclient（connecttoclient);
thread.start（);
}
}
catch（bindexception e){
system.out.println（ "端口被占用 ");
}
catch （ioexception ex) {
ex.printstacktrace（);
}
}
/**
* @param args the command line arguments
*/
public static void main（string[] args) {
// todo code application logic here
server server=new server（);
}
}
///////////////////////////////////////////////////
//client.java
package javanet;
import java.net.*;
import java.io.*;
public class client {
private socket contenttoserver;
/** creates a new instance of client */
public client（) {
try {
system.out.println（ "请求服务器： ");
contenttoserver=new socket（ "localhost ",8086);
system.out.println（ "请求成功，正成发送数据： ");
datainputstream disformserver=new datainputstream（contenttoserver.getinputstream（));
dataoutputstream dostoserver=new dataoutputstream（contenttoserver.getoutputstream（));
bufferedreader br=new bufferedreader（new inputstreamreader（system.in));
double r=0;
while（r> =0){
r=double.parsedouble（br.readline（));
dostoserver.writedouble（r);
double area=disformserver.readdouble（);
system.out.println（ "from server is "+area);
}
} catch （unknownhostexception ex) {
ex.printstacktrace（);
}
catch（connectexception e){
system.out.println（ "连接超时，找不到服务器。 ");
}
catch （ioexception ex) {
ex.printstacktrace（);
}
}
public static void main（string[] args){
client client=new client（);
}
}
/////////////////////////////////////////////////////////
//handleaclient.java
package javanet;
import java.io.*;
import java.net.*;
class handleaclient extends thread{
private socket connecttoclient;
public handleaclient（socket socket){
connecttoclient=socket;
}
public void run（){
try{
datainputstream disformclient=new datainputstream（connecttoclient.getinputstream（));
dataoutputstream dostoclient=new dataoutputstream（connecttoclient.getoutputstream（));
inetaddress clientinetaddress=connecttoclient.getinetaddress（);
double r=0;
while（r> =0){
system.out.println（ "连接的客户机是： "+clientinetaddress.gethostname（));
r=disformclient.readdouble（);
double area=math.pi*r*r;
dostoclient.writedouble（area);
thread.sleep（100);
}
}
catch（ioexception e){
system.err.println（e);
}
catch（interruptedexception e){
system.err.println（e);
}
}
}
运行之后，服务端总是端口被占，但能运行第一个客户，以后的就没什么反应了。
高手们给个答案。急~~~~~~
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