Question

java点对点编程需要配置服务器端吗？

如下面这个五子棋，为什么客户端与服务器端却连不上?

客户端:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.awt.image.*;
import javax.imageio.*;
import java.net.*;
public class ChessClientFrame extends JFrame implements MouseListener
{
BufferedImage back=null;
int x=-50;
int y=-50;
int xy[][]=new int[18][18];
BufferedReader in=null;
PrintWriter out=null;
Socket client=null;
String sout=null,sin=null;
int sint=0;
int bw[][]=new int[18][18];
public ChessClientFrame()
{
this.setTitle("五子棋Client端");
this.setSize(463,380);
this.setVisible(true);
this.setResizable(false);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.addMouseListener(this);
try
{
back=ImageIO.read(new File("D:\\bgClient.jpg"));
}
catch (IOException e)
{
}

}
public void go()
{

try
{
//client=new Socket("115.60.67.49",5600);
client=new Socket("115.61.165.197",5600);
}catch (Exception en) {}
try
{
in=new BufferedReader(new InputStreamReader(client.getInputStream()));
out=new PrintWriter(client.getOutputStream());
}
catch (Exception en)
{
}
String line="READY";
while(line!="EXIT")
{
try
{
sin=in.readLine();
sint=Integer.parseInt(sin);
System.out.println(sint);
xy[sint/100][sint%100]=sint;
bw[sint/100][sint%100]=1;
this.repaint();
}
catch (Exception en)
{
}
}
}
public void paint(Graphics g)
{
g.drawImage(back,1,30,this);
//g.drawString("ok",100,100);
for (int i=0;i<18;i++)
{
g.drawLine(10,32+20*i,350,32+20*i);
}
for (int j=0;j<18;j++)
{
g.drawLine(10+20*j,32,10+20*j,371);
}
for (int xx=0;xx<18 ;xx++ )
{
for (int yy=0;yy<18 ;yy++ )
{
if (bw[xx][yy]==2)
{g.setColor(Color.WHITE);}
else
{g.setColor(Color.BLACK);}
if (xy[xx][yy]!=0)
{
g.fillOval(xy[xx][yy]/100*20+10-7,xy[xx][yy]%100*20+32-7,13,13);
}
}
}
}
/*public static void main(String args[])
{
ChessFrame ob=new ChessFrame();
ob.repaint();
}*/
public void mousePressed(MouseEvent e)
{
x=((e.getX()/20*20+10)-10)/20;
y=((((e.getY()-22)/20*20+32)-32)/20);
xy[x][y]=x*100+y;
bw[x][y]=2;
//System.out.println(x+" "+y);
this.repaint();
sout=x*100+y+"";
out.println(sout);
out.flush();
}
public void mouseClicked(MouseEvent e)
{}
public void mouseReleased(MouseEvent e)
{}
public void mouseEntered(MouseEvent e)
{}
public void mouseExited(MouseEvent e)
{}
}
不行啊，这是我的服务器端，但是连不上
public class ChessFrame extends JFrame implements MouseListener
{
BufferedImage back=null;
Qizi luozi=null;
int x=-50;
int y=-50;
int xy[][]=new int[18][18];
int bw[][]=new int[18][18];
BufferedReader in=null;
PrintWriter out=null;
ServerSocket server=null;
Socket socket=null;
String sout=null,sin=null;
int sint=0;
public ChessFrame()
{
this.setTitle("五子棋Server端");
this.setSize(463,380);
this.setVisible(true);
this.setResizable(false);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.addMouseListener(this);
因为字数限制，以下代码和客户端类似

Answer 1

代码不全，而且格式不方便看我就不看了。
试问这位小弟，你防火墙允许通过了吗？cmd.exe, java.exe, javaw.exe, etc.

Answer 2

Socket连接服务出问题，一般出在套接字上，你去查下这个方面的问题。

Answer 3

你的服务器呢? 主要服务器监听5600端口,客户端请求5600端口就可以了.