Java各种网络代码

				package ipconfig;								import java.awt.*;				import javax.swing.*;				import java.io.*;				import java.net.*;				import java.awt. event.*;				import javax.swing.border.*;								/**				 * Title:        获取网站信息				 * Description:  该实例从Internet网络中获取一个服务器的IP地址、机器名称、子网掩码、DNS配置等信息。				 * Copyright:    Copyright (c) 2002				 * Company:      北京师范大学计算机系				 * @author 梁志伟				 * @version 1.0				 */								public class InfoPanel extends JPanel {						GridLayout gridLayout1 = new GridLayout(5,2,1,1);										JLabel displayLabel = new JLabel();						JLabel namelabel = new JLabel();						JLabel name = new JLabel();						JLabel ipLabel = new JLabel();						JLabel ip = new JLabel();						JLabel display = new JLabel();						JLabel host = new JLabel();						JLabel hostLabel = new JLabel();						JLabel full = new JLabel();						JLabel fullLabel = new JLabel();										Info cfg;								  	public InfoPanel(Info cfg) {							this.cfg =cfg;							try {								jbInit();				    			}							catch(Exception e) {								e.printStackTrace();				    			}				  		}										private void jbInit() throws Exception {							Border border=new BevelBorder(BevelBorder.RAISED);							String names=cfg.getName() ;							border=new TitledBorder(border,names);							setBorder(border);							displayLabel.setText("DisplayName:");							this.setLayout(gridLayout1);							namelabel.setText("Name:");							name.setForeground(Color.red);							name.setText(cfg.getName() );							ipLabel.setText("Address:");							ip.setForeground(Color.red);							ip.setText(cfg.getAddress() );							display.setForeground(Color.red);							display.setText(cfg.getDisplayName());							host.setForeground(Color.red);							host.setText(cfg.getHostName());							hostLabel.setText("HosName:");							full.setForeground(Color.red);							full.setText(cfg.getFullName() );							fullLabel.setText("FullName:");							this.add(displayLabel, null);							this.add(display, null);							this.add(namelabel, null);							this.add(name, null);							this.add(ipLabel, null);							this.add(ip, null);							this.add(hostLabel, null);							this.add(host, null);							this.add(fullLabel, null);							this.add(full, null);				}				}