storeandfolder.java

Mail Of Java

package mailofjava;
import java.util.*;
import java.io.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
/**演示怎么收取邮件和读邮件,用到了store　和 folder类，但是不处理附件*/
/*曾海 2003-7*/

public class StoreAndFolder {
   private String  username="Mithrandir";
   private String  password="916916916";
   private String  pop3host="127.0.0.1";
   private int  pop3port=110;
    Store mailStore;
    Session session;


  public StoreAndFolder() {
     Properties prop;
    try{
    prop=new Properties();
   // prop.load(new FileInputStream("MailSetting.txt"));
    System.out.println("start put");

    prop.put("mail.transport.protocol","pop3");
    prop.put("mail.pop.port","110");
    prop.put("mail.store.protocol","pop3");//不设定就爆掉，惨重的教训啊～


    session= Session.getDefaultInstance(prop);

    System.out.println("Session created!");

    //Provider []  provider = session.getProviders();
    //int j=provider.length ;
    //for(int k=0;k<provider.length ;k++)
    //    System.out.println("Proverder"+k+":"+provider[k].getProtocol() );

    mailStore= session.getStore() ;

    mailStore.connect(pop3host,pop3port,username,password);

    }catch (Exception e){
    System.out.println("connection to server failure");
    e.printStackTrace() ;};

   try{

     Folder fld=mailStore.getDefaultFolder();
     if(fld!=null){//文件夹不是空
       if((fld.getType() & Folder.HOLDS_FOLDERS )!=0){//有文件夹在，就列出全部
          Folder[] list = fld.list("*");
          for(int i=0;i<list.length ;i++){
             System.out.println("Foldername="+list[i].getName() );
          }//for
       }//inner if

     }//if
     Folder inbox = fld.getFolder("INBOX") ;//取得第一个
     inbox.open(Folder.READ_ONLY );
     Message totalMessage[] = inbox.getMessages() ;//取得信息组
     for(int k=0;k<totalMessage.length ;k++)
     {    System.out.println("Subject No."+k+":"+totalMessage[k].getSubject() +"==Line:"+
                              totalMessage[k].getLineCount() );

       //   totalMessage[k].writeTo(System.out);危险，把整个邮件的mime全打了出来，看不明白啊！
     String mytype = totalMessage[k].getContentType() ;
     System.out.println("type is "+ mytype);
     String mycontents = (String) (totalMessage[k].getContent()) ;//返回的是对象哦
     System.out.println("Yes,the contents is "+mycontents);


     }
     inbox.close(false);


   }catch(Exception e){ e.printStackTrace();};

  }
  public static void main(String[] args) {
    StoreAndFolder storeAndFolder1 = new StoreAndFolder();
  }
}