testmail.java

java的邮件编程

import java.io.*;
import sun.io.*;
import java.lang.*;
import java.util.*;
import java.net.*;
import java.text.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;

public class testMail implements Runnable
{
    public static void main(String arg[]) throws Exception 
    {
        ThreadGroup g=new ThreadGroup("TG");
        Runnable r=new testMail();
        Thread t;
        for (;;)
        {
           t = new Thread(g,r);
           t.start();
           t.sleep(60000);
        }
       
   }
   
   public void run()
   {
   	String timeTxt = getTime();
    	int myCount=0;
    	String rName="";
    	String time1Txt=timeTxt.substring(0,4)+timeTxt.substring(5,7)+timeTxt.substring(8,10)+timeTxt.substring(11,13)+timeTxt.substring(14,16);
        String host="mail.hrwf.net";
        String user="[e-mail]";
        String pass="willy1";
   	if (timeTxt.substring(14,16).equals("24"))
   	//if (timeTxt.substring(15,16).equals("4"))
   	{
   	    String FileName="\\mail\\html\\mail"+time1Txt+".html";
   	    System.out.println(timeTxt);
   	    File fileOut = new File(FileName);
            try
            {
            	 FileWriter xyz = new FileWriter(fileOut);
    	         Session session =Session.getInstance(new Properties(),null); 
                 Store mystore=session.getStore("pop3");
                 mystore.connect(host,user,pass);
   	         if(mystore.isConnected())
                 {
                      Folder inbox = mystore.getFolder("INBOX");
                      if (inbox.exists()) {
             	         inbox.open(Folder.READ_WRITE);
		         int nCount = inbox.getMessageCount();
		         if (nCount > 0)
		         {
		             for(int i=1;i<=nCount;i++){
		                 MimeMessage msg = (MimeMessage)inbox.getMessage(i);
		                 if (msg.isMimeType("multipart/*") || msg.isMimeType("MULTIPART/*") || msg.isMimeType("Multipart/*"))
            	                 {
            	                      Part p = (Part)msg;
            	                      try
            	                      {
            	                          rName = handleMultipart(p);
            	                      }
            	                      catch (Exception e)
                                      {
                                            System.out.println("mail error01");
                                      }
                                  }
                                  else
                                  {
               	                       rName = msg.getContent().toString();
		                   
                                  }
		                  xyz.write(rName);
		            }
		            xyz.close();           
                     }
               }
               inbox.close(true);
            }
            mystore.close();
           }
            catch (Exception e)
            {
                System.out.println("mail error02");
            }
    	}
   }
   
   public static String handleMultipart(Part p) throws Exception
    {
    	 String rName="";
    	 String rImage="";
    	 String weboa_osName = System.getProperty("os.name");
    	 String mct = "";
    	 String attPath = "\\mail\\file\\";
    	 String attFile = "";
    	 String filesName = "";
    	 String timeTxt0 = "";
    	 String timeTxt1 = "";
    	 Multipart mp=(Multipart)p.getContent();
    	 int myCount = mp.getCount();
         for (int k=0;k<myCount;k++)
         {
             if (mp.getBodyPart(k).isMimeType("multipart/*") || mp.getBodyPart(k).isMimeType("Multipart/*") || mp.getBodyPart(k).isMimeType("MULTIPART/*"))
             {
             	 handleMultipart(mp.getBodyPart(k));
             }
             if (mp.getBodyPart(k).isMimeType("image/*") || mp.getBodyPart(k).isMimeType("Image/*") || mp.getBodyPart(k).isMimeType("IMAGE/*"))
	     {
	     	 rName = rName;
	     }
             if (mp.getBodyPart(k).isMimeType("text/*") || mp.getBodyPart(k).isMimeType("Text/*") || mp.getBodyPart(k).isMimeType("TEXT/*"))
	     {
		  rName = mp.getBodyPart(k).getContent().toString();
		  if (mp.getBodyPart(k).isMimeType("text/plain") || mp.getBodyPart(k).isMimeType("TEXT/PLAIN"))
		  {
		        rName = rName.replaceAll("\n","<br>");
		        try
		        {
		              if (mp.getBodyPart(k).getHeader("Content-Transfer-Encoding")[0].equals("base64") || mp.getBodyPart(k).getHeader("Content-Transfer-Encoding")[0].toUpperCase().equals("8BIT"))
		      	      {
		      	   	     rName = rName;
		      	      }
		      	      else
		      	      {
		      	   	     rName = new String(rName.getBytes("ISO8859_1"),"GB2312");
		      	   	     
		      	      }
		        }
		        catch (Exception e)
                        {
                             System.out.println("mail error03");
                        }
                  }
             }
             if (mp.getBodyPart(k).isMimeType("application/*") || mp.getBodyPart(k).isMimeType("Application/*") || mp.getBodyPart(k).isMimeType("APPLICATION/*"))
             {
             	 mct = mp.getBodyPart(k).getDisposition();
             	 if (mct != null && mct.equals(Part.ATTACHMENT))
		 {
		     filesName = mp.getBodyPart(k).getFileName();
		     if (filesName.startsWith("=?gb") || filesName.startsWith("=?GB"))
		     {
		           filesName = MimeUtility.decodeText(filesName);
		           filesName = new String(filesName.getBytes("GB2312"),"ISO8859_1"); 	  
		     }
		     timeTxt0 = getTime();
    	             timeTxt1 = timeTxt0.substring(0,4)+timeTxt0.substring(5,7)+timeTxt0.substring(8,10)+timeTxt0.substring(11,13)+timeTxt0.substring(14,16);
		     //attFile = attPath + timeTxt1 + getRandString(100) + String.valueOf(k) + "." + getFileExt(filesName);
		     attFile = attPath + timeTxt1 + getRandString(4) + String.valueOf(k) + "." + getFileExt(filesName);
		     System.out.println(attFile);
		     FileOutputStream out = new FileOutputStream ( attFile );
                     InputStream in = mp.getBodyPart(k).getInputStream();
                     int c = in.read();
                     while (c != -1)
                     {
                         out.write(c);
                         c = in.read();
                     }
                     in.close();
                     out.close();
		 }
             }
         }
         return rName;
    }
    
    public static String getTime()
    {
        Calendar calendar = Calendar.getInstance(new Locale("CHINESE", "", ""));
        int i = calendar.get(1);
        int j = calendar.get(2);
        int k = calendar.get(5);
        int l = calendar.get(11);
        int i1 = calendar.get(12);
        int j1 = calendar.get(13);
        String s1 = String.valueOf(++j);
        if(s1.length() == 1)
            s1 = "0" + s1;
        String s2 = String.valueOf(k);
        if(s2.length() == 1)
            s2 = "0" + s2;
        String s = String.valueOf(i) + "-" + s1 + "-" + s2 + " ";
        String s3 = String.valueOf(l);
        if(s3.length() == 1)
            s3 = "0" + s3;
        String s4 = String.valueOf(i1);
        if(s4.length() == 1)
            s4 = "0" + s4;
        String s5 = String.valueOf(j1);
        if(s5.length() == 1)
            s5 = "0" + s5;
        s = s + s3 + ":" + s4 + ":" + s5;
        return s;
    }
    
    public static String getFileExt(String fileName)
    {
        String value = new String();
        int start = 0;
        int end = 0;
        if(fileName == null)
            return null;
        start = fileName.lastIndexOf(46) + 1;
        end = fileName.length();
        value = fileName.substring(start, end);
        if(fileName.lastIndexOf(46) > 0)
            return value;
        else
            return "";
    }
    
    public static String getRandString(int i)
    {
        int j = 1;
        boolean flag = false;
        for(int k = 0; k < i; k++)
            j *= 10;

        Random random = new Random();
        String s = String.valueOf(random.nextInt(j));
        for(int l = s.length(); l < i; l++)
            s = "0" + s;

        return s;
    }

}