socket网络编程.ppt

第十四章目标：14.1.1网络编程概述14.1.1网络编程概述14.1.1网络编程概述14.1.1网络编程概述14.1.1网络编程概述14.1.1网络编程概述14.1.1网络编程概述14.3.1InetAddress14.3.2流式通信协议连接通信14.3.3Socket14.3.4ServerSocket14.3.5流式通信示例14.3.5流式通信示例服务器端程序address.setText(InetAddress.getLocalHost().getHostName());
……
}
publicvoidactionPerformed(ActionEvente){
JButtonb=(JButton)e.getSource();
if(b.equals(btnstart)){
try{
Stringp=port.getText();
if(!p.equals("")){//启动服务器
mysocket=newServerSocket(
Integer.parseInt(port.getText()));
connect=mysocket.accept();
l5.setText(“服务器已经启动！监听端口
在"+p+"。");
} else{
JOptionPane.showMessageDialog(
this,“请输入端口号!","提示信息",
JOptionPane.INFORMATION_MESSAGE);
}
}catch(Exceptionee){
l5.setText("服务器启动错误！");}
}
if(b.equals(btnconvert)){
try{
BufferedReaderin=newBufferedReader(new
InputStreamReader(connect.getInputStream()));
PrintWriterout=newPrintWriter
(connect.getOutputStream(),true);
Stringline=in.readLine();
oldword.setText(line); newword.setText(line.toUpperCase());
out.println(line.toUpperCase());
}catch(Exceptionioe){l5.setText("数据传输错误！");
}}}

publicstaticvoidmain(Stringargs[])throwsIOException{
SocketServerclient=newSocketServer();
}
}
客户端程序try{
Stringh=address.getText();
Stringp=port.getText();
if(h.equals("")||p.equals("")){
JOptionPane.showMessageDialog(this,“请输入服务
器名称和端口号!","提示信息",
JOptionPane.INFORMATION_MESSAGE);
}else{
connect=newSocket(InetAddress.getByName(h),
Integer.parseInt(p));
l5.setText("连接服务器成功！");
}
}catch(Exceptionee){l5.setText("连接服务器失败！");}
}
if(b.equals(btnsend)){
try{
PrintWriterout=newPrintWriter
(connect.getOutputStream(),true);
BufferedReaderin=newBufferedReader(new
InputStreamReader(connect.getInputStream())); out.println(word.getText());
Stringline=in.readLine();
newword.setText(line);
}catch(Exceptionioe){l5.setText("数据传输错误！");}
}}
publicstaticvoidmain(Stringargs[]){
SocketClientclient=newSocketClient();
}
}14.4.4数据报通信协议14.4.4数据报通信协议总结：