这是个c/s的做加法的程序，client输入server计算并返回结果．
现在问题是能计算结果但client取不回来．
源码：
client~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
import java.net.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
class Client1 extends Frame
{
static private TextField taIn1,taIn2;
static private TextArea taOut;
static private Panel p,p1;
static private Button bSub,bClr,bres;
static private Label l1,l2,l3;
//变量定义
public Client1(){
super("通讯程序客户端");
taIn1=new TextField("",10);
taIn2=new TextField("",10);
taOut=new TextArea("",10,10,TextArea.SCROLLBARS_VERTICAL_ONLY);
taOut.setEditable(false);
taOut.setBackground(Color.black);
taOut.setForeground(Color.white);
p=new Panel();
p1=new Panel();
bSub=new Button("SUBMIT");
bClr=new Button("CLEAR");
bres=new Button("RESULT");
l1=new Label("加数:");
l2=new Label("被加数:");
this.add(taOut,"North");
this.add(p1,"Center");
//框架
p1.add(l1);
p1.add(taIn1);
p1.add(l2);
p1.add(taIn2);
//输入文本框
p.add(bSub);
p.add(bClr);
p.add(bres);
//按钮
this.addWindowListener(new MyWindowListener());
this.add(p,"South");
this.pack();
this.setSize(430,300);
this.setVisible(true);
}
public static void main(String[] args)
{
Client1 gtxs=new Client1();
bSub.addActionListener(
new ActionListener(){
public void actionPerformed(ActionEvent e){
String s3;
taOut.setText("输入的两位运算数值为：\n"+taIn1.getText()+'\t'+taIn2.getText()+'\n');
//s3=
tongXun();
//taOut.setText(s3);
}
});
bClr.addActionListener(
new ActionListener(){
public void actionPerformed(ActionEvent e){
taOut.setText("");
taIn1.setText("");
taIn2.setText("");
}
});
bres.addActionListener(
new ActionListener(){
public void actionPerformed(ActionEvent e){
//
}
});
}//end main
public static String tongXun(){
Socket sClient;
String s,s1=new String("");
BufferedWriter bw;
BufferedReader br;
int i=0;
//变量定义
try{
sClient=new Socket("127.0.0.1",1024);
bw=new BufferedWriter(
new OutputStreamWriter(sClient.getOutputStream()));
br=new BufferedReader(
new InputStreamReader(sClient.getInputStream()));
}catch(UnknownHostException e)
{
taOut.setText("UnknownHostException Happened.");
return("UnknownHostException Happened.");
}
catch(IOException e)
{
taOut.setText("can not connect with Server.");
return("can not connect with Server.");
}
taOut.setText("Connect Server Success.");
//while(true){
try{
s=taIn1.getText()+'\n'+taIn2.getText()+'\n';
bw.write(s);
bw.flush();
bw.close();
}catch(IOException e)
{
taOut.setText(taOut.getText()+'\n'+"write data error.");
}
while(i==0){
try{
while((s=br.readLine())!=null)
{s1=s; i=1;}
}catch(IOException e)
{
taOut.setText(taOut.getText()+'\n'+"read data error.");
return("read error.");
}
}//end while 2
return(s1);
//}//end while
}//end tongXun()
}// end class Client1
class MyWindowListener extends WindowAdapter{
public void windowClosing(WindowEvent e){
System.exit(0);
}
}
server~~~~~~~~~~~~~~~~~~
import java.net.*;
import java.io.*;
import java.awt.*;
import java.awt.event.*;
class Server extends Frame
{
static private TextArea taOut;
public Server(){
super("通讯程序服务器端");
Label l=new Label("接受到的客户输入如下...");
taOut=new TextArea("",20,20,TextArea.SCROLLBARS_VERTICAL_ONLY);
taOut.setEditable(false);
this.addWindowListener(new MyWindowListener());
this.add(l,"North");
this.add(taOut,"Center");
this.setSize(430,300);
this.setVisible(true);
service();
}
public static void main(String[] args)
{
Server gtxs=new Server();
} // end main
public static void service()
{
ServerSocket serverGui=null;
Socket sGui;
BufferedReader br;
BufferedWriter bw;
String[] s;
s=new String[2];
s[0]=new String();
s[1]=new String();
String s1,s2=new String();
//变量定义
try{
serverGui=new ServerSocket(1024);
}catch(IOException e)
{
taOut.setText("Server cannot be created.");
System.exit(0);
//return;
}
taOut.setText("now server is started."+'\n');
while(true)
{
try{
sGui=serverGui.accept();
bw=new BufferedWriter(
new OutputStreamWriter(sGui.getOutputStream()));
br=new BufferedReader(
new InputStreamReader(sGui.getInputStream()));
for(int i=0;i<=1&&(s1=br.readLine())!=null;i++) s[i]=s1;
s2=plus(s);
taOut.setText(taOut.getText()+"s"+s+'\n'+"s[0]:"+s[0]+'\n'+"s[1]:"+s[1]+'\n'+"s2:"+s2);
bw.write("from server.");
taOut.setText(taOut.getText()+"已经送回");
}catch(IOException e)
{
taOut.setText("cannot read from client.");
return;
}
try{
//bw.write("from server.");
bw.flush();
bw.close();
}catch(IOException e){taOut.setText("write data error.");}
try{
taOut.setText(taOut.getText()+"\nserver will be closed.");
sGui.close();
}catch(IOException e){taOut.setText("server closes error.");}
}//end while
}//end service
static String plus(String[] ss){
float a;
String s;
a=Float.parseFloat(ss[0])+Float.parseFloat(ss[1]);
s=Float.toString(a);
return s;
}
}
class MyWindowListener extends WindowAdapter{
public void windowClosing(WindowEvent e){
System.exit(0);
}
}
高手帮忙给看看，多谢了．在线等．．．．．．．．．．．．．．．．．
