demo.java

用java写的一个十分简单实用的邮件发送界面设计

package Pro123;

import java.awt.Color;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;

public class Demo extends JFrame{
	   /**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	JOptionPane pane1 = new JOptionPane();
	JFrame frame = new JFrame();
	    Container contentPane = frame.getContentPane();
       JLabel Message = new JLabel("请输入邮箱和密码");
       //用户名、密码以及其输入框
       JLabel Name = new JLabel("用户名");
       JLabel Password = new JLabel("密   码");
       JTextField tName = new JTextField(12);
       JPasswordField pPwd = new JPasswordField(12);
       //按扭
       JButton btnDl = new JButton("登陆");
       JButton btnCz = new JButton("重置");
      
       
       JPanel pToppane = new JPanel();
       JPanel pCenterpane = new JPanel();
       JPanel pCenterpaneName = new JPanel();
       JPanel pCenterpanePwd = new JPanel();
       JPanel pButton = new JPanel();
       
       Demo(){
    	  
       this.setTitle("邮件登陆");//窗口标题
    	   
       //以下为加入面版
       pCenterpaneName.add(Name);
       pCenterpaneName.add(tName);
       
       pCenterpanePwd.add(Password);
       pCenterpanePwd.add(pPwd);
       
       pCenterpane.add(pCenterpaneName,"North");
       pCenterpane.add(pCenterpanePwd,"South");
       
       pToppane.add(Message);
      
       pButton.add(btnDl);
       pButton.add(btnCz);
       btnDl.addActionListener(new neibu1());
       btnCz.addActionListener(new neibu2());
       
       add(pToppane,"North");
       add(pCenterpane,"Center");
       add(pButton,"South");
       
       
       this.setSize(250,180);//设置大小
       this.setVisible(true);//设置可见
       
       setResizable(false);//禁止拉动窗口大小
       //居中窗口
       Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
	   setLocation((screen.width - getSize().width)/2,(screen.height - getSize().height)/2 );
		
      // this.setDefaultCloseOperation(3);//关闭窗口
	   this.addWindowListener(new WindowClose());
       }
       //对邮箱的输入格式进行判断
       public boolean validateEmailName(String name){
    	   String emailName = name.substring(0,name.indexOf('@'));
    	   boolean booFormat = true;
    	   int temp = -1;
    	   for(int i=0;i<emailName.length();i++){
    		   temp = name.charAt(i);
    		   A:if(temp<65){
    			   if(temp>48 && temp<57)
    				   break A;
    			   booFormat = false;
    			   break;
    		   }
    		   B:if(temp>90 && temp<97){
    			   if(temp == 95)
    				   break B;
    			   booFormat = false;
    			   break;
    		   }
    	   }
    	   return booFormat;
       }
       //邮箱检测
       public boolean validateStationName(String name){
    	   String stationName = name.substring(name.indexOf('@')+1);
    	   boolean boo = true;
    	   if(stationName.indexOf('.') == -1){
    		   boo = false;
    	   }else if(stationName.indexOf('.') == 0){
    		   boo = false;
    	   }
    	   return boo;
       }
       
       //事件
   
    	 
      class  neibu1 implements ActionListener {
    	 public void actionPerformed(ActionEvent e){
    		 String name = tName.getText().trim();
    		 String password = new String(pPwd.getPassword()).trim();
    		 int first = 0;
    		 @SuppressWarnings("unused")
			boolean booFromat = false;
    		 boolean boo = false;
    		 
    		 boolean booFormat = false;
			if(name.length()>0){
    			 first = name.charAt(0);
    			 if(name.indexOf("@")!= -1){
    				 booFormat = validateEmailName(name);
    				 boo = validateStationName(name);
    			 }
    		 }
    		 if(name.equals("")){
    			 Message.setForeground(Color.red);
    			 Message.setText("请输入邮箱");
    			// tName.setText("");//清空输入内容
    			 pPwd.setText("");//清空输入内容
    			 tName.grabFocus();
    		 }else if(name.indexOf("@")== -1){
    			 Message.setForeground(Color.red);
    			 Message.setText("您输入邮箱格式错误，不包含“@”");
    			 //tName.setText("");
    			 pPwd.setText("");//清空输入内容
    			 tName.grabFocus();
    		 }else if(first<65 || (first>90 && first <97)||first>122){
    			 Message.setForeground(Color.red);
    			 Message.setText("邮箱首字母应为英文字母");
    			// tName.setText("");
    			 pPwd.setText("");//清空输入内容
    			 tName.grabFocus();
    		 }else if(!booFormat){
    			 Message.setForeground(Color.red);
    			 Message.setText("邮箱名不和法：只能包含字母、数字、下划线");
    			 //tName.setText("");
    			 pPwd.setText("");//清空输入内容
    			 tName.grabFocus();
    		 }else if(!boo){
    			 Message.setForeground(Color.red);
    			 Message.setText("邮箱后缀不和法");
    			 //tName.setText("");
    			 pPwd.setText("");//清空输入内容
    			 tName.grabFocus();
    		 }else if(password.equals("")){
    			 Message.setForeground(Color.red);
    			 Message.setText("密码不能为空");
    			 pPwd.setText("");//清空输入内容
    			 pPwd.grabFocus();
    		 }else if(password.length()<6){
    			 Message.setForeground(Color.red);
    			 Message.setText("密码必须为6位，请检查后重新输入");
    			 pPwd.setText("");//清空输入内容
    			 pPwd.grabFocus();
    		 }else if(name.equals("[e-mail]")&&password.equals("jackrose")){
    			 Message.setForeground(Color.blue);
    			 Message.setText("欢迎"+name+"登陆");
    		 }else{
    			 Message.setForeground(Color.red);
    			 Message.setText("邮箱或密码错误！请重新输入！");
    			 pPwd.setText("");//清空输入内容
    			 tName.grabFocus();
    		 }
    	 }
    		 }
//    重置键清空输入内容
      class neibu2 implements ActionListener {
     
    	 public void actionPerformed(ActionEvent e){
    		 pPwd.setText("");
    		 tName.setText("");
    	 }
      }
      class WindowClose extends WindowAdapter{
      public void windowClosing(WindowEvent e){
    	  
    	 System.exit(0);
      }
      }
      //MAIN方法
       public static void main(String[]args){
    	   new Demo();
       }

	
}