receivemail.java

该文件中包含了用java开发的邮件发送系统

                                                }
                                                if (j==0) //取出邮件正文
                                                {
                                                        Vcontent= Vcontent+part.getContent().toString()+",";
                                                }
                                                ContentType ct=new ContentType(contentType);
                                                if(ct.match("text/plain")||ct.match("text/html"))
                                                {
                                                        if (part.getDisposition()!=null)
                                                        {
                                                                if(part.getFileName()!=null)//中文是附件
                                                                {
                                                                        String desc=pub.Exchange(part.getFileName().toString());
                                                                        java.io.File attachfile=new java.io.File(path+desc);
                                                                        FileOutputStream fileoutputstream =new FileOutputStream(attachfile);
                                                                        BufferedOutputStream bufferedoutputstream =new BufferedOutputStream(fileoutputstream);
                                                                        BufferedInputStream bufferedinputstream =new BufferedInputStream(part.getInputStream());
                                                                        int size=0;
                                                                        int n;
                                                                        while ((n=bufferedinputstream.read())!=-1)
                                                                        {
                                                                                bufferedoutputstream.write(n);
                                                                                size++;
                                                                        }
                                                                        bufferedoutputstream.flush();
                                                                        bufferedoutputstream.close();
                                                                        bufferedinputstream.close();
                                                                }//end if(part.getFileName()!=null
                                                        }
                                                }//if ct match
                                                else if (part.getFileName()!=null)//英文并且有附件
                                                {
                                                        String desc=pub.Exchange(part.getFileName().toString());
                                                        java.io.File attachfile=new java.io.File(path+desc);
                                                        FileOutputStream fileoutputstream =new FileOutputStream(attachfile);
                                                        BufferedOutputStream bufferedoutputstream =new BufferedOutputStream(fileoutputstream);
                                                        BufferedInputStream bufferedinputstream =new BufferedInputStream(part.getInputStream());
                                                        int n;
                                                        int size=0;
                                                        while ((n=bufferedinputstream.read())!=-1)
                                                        {
                                                                bufferedoutputstream.write(n);
                                                                size++;
                                                        }
                                                        bufferedoutputstream.flush();
                                                        bufferedoutputstream.close();
                                                        bufferedinputstream.close();

                                                }//英文并且有附件
                                                //*******************
                                        }
                                }
                        }
                }
        }
        catch(Exception e)
        {
                System.out.println("getContent Error:"+e);
        }
        return Vcontent;
}
*/

        //得到发邮件的时间的Vector
        public Vector getDate()
        {
                Vector v_date=new Vector();
                try
                {
                        for(int i=0;i < message.length;i++)
                        {
                                if (!message[i].isSet(Flags.Flag.DELETED))
                                {
                                        java.util.Date Vsendtime=message[i].getSentDate();	//发送时间

                                        //下面三行代码为转换时间的格式
                                        int Vyear=1900+Vsendtime.getYear();
                                        int Vmonth=Vsendtime.getMonth()+1;
                                        String sendtime=""+Vyear+"-"+Vmonth+"-"+Vsendtime.getDate()+" "+Vsendtime.getHours()+":"+Vsendtime.getMinutes()+":"+Vsendtime.getSeconds();

                                        v_date.addElement(sendtime);
                                }
                        }
                }
                catch(Exception e)	//出现异常的处理
                {
                        System.out.println("getDate Error:"+e);
                        v_date.clear();
                }

                return v_date;	//返回Vector
        }

        //删除所有邮件,本实例没有用到这个方法
/*
        public void DeleteMail()
        {
                int i=0;
                try
                {
                        for(i=0;i < message.length;i++)
                        {
                                if (!message[i].isSet(Flags.Flag.DELETED))
                                {
                                        message[i].setFlag(Flags.Flag.DELETED, true);
                                }
                        }
                }
                catch(Exception e)
                {
                        System.out.println("DeleteMail Error:"+e);
                }

                try
                {
                        folder.close(folder.isOpen());
                        store.close();
                }
                catch(MessagingException e)
                {
                        System.out.println("DeleteMail Error:"+e);
                }
        }
*/

        //删除指定的邮件,支持删除一批邮件
        public boolean DeleteMail(String id)
        {
                boolean rtnbl = true;	//该函数的返回值
                //调用方法拆分字符串，得到邮件的id
                Vector id_vec = getVectorFromStr(id,",");
                if(id_vec.size()==0)
                {
                        return false;
                }
                int i=0;
                try
                {
                        for(i=0;i < id_vec.size();i++)
                        {
                                if (!message[Integer.parseInt((String)id_vec.elementAt(i))].isSet(Flags.Flag.DELETED))
                                {
                                        //给邮件置上删除标记
                                        message[Integer.parseInt((String)id_vec.elementAt(i))].setFlag(Flags.Flag.DELETED, true);
                                }
                        }
                }
                catch(Exception e)	//出现异常的操作
                {
                        rtnbl = false;
                        System.out.println("DeleteMail Error:"+e);
                }

                try
                {
                        folder.close(folder.isOpen());	//关闭当前活动的收件箱的文件夹
                        store.close();	//关闭store对象
                }
                catch(MessagingException e)	//出现异常的处理
                {
                        rtnbl=false;
                        System.out.println("DeleteMail Error:"+e);
                }

                return rtnbl;
        }

        //解决中文问题
        //本函数的功能可以单独做到一个常用的工具类中,因为很多地方都要用到该功能
        public String getChineseStr(String str)
        {
                String rtnStr = "";
                try
                {
                        //转换成支持中文的码
                        rtnStr = new String(str.getBytes("ISO-8859-1"));
                }
                catch(Exception e)	//出现异常的处理
                {
                        rtnStr = str;
                        System.out.println("Unsupported Encoding Exception:"+e);
                }
                return rtnStr;
        }

        //把字符串按照特定的字符拆分成Vector,例如字符串"a,b,c"将被拆成大小为3的Vector
        //本函数的功能可以单独做到一个常用的工具类中,因为很多地方都要用到该功能
        public Vector getVectorFromStr(String str,String symbol)
        {
                Vector rtnVec = new Vector();
                //按照指定的标记实例化StringTokenizer对象
                StringTokenizer parser = new StringTokenizer(str,symbol);
                try
                {
                        while (parser.hasMoreElements())//循环拆分
                        {
                                rtnVec.addElement(parser.nextElement().toString());
                        }
                }
                catch(Exception e)	//出现异常的操作
                {
                        rtnVec.clear();
                        System.out.println("found error in getVectorFromStr():"+e);
                }

                return rtnVec;	//返回Vector
        }
}