用intellijidea编写java的发送邮件,接收邮件,发送带附件的邮件

1、广西民族大学实 验 报 告学院： 班级 11信计 姓名 学号 分数 实验日期 2014.5.11 指导老师 秦董洪 实验名称 用java实现邮件的发送和接收 实验内容:编写一个发送和接收邮件信息的邮件程序，包括邮件中附件的发送与接收。实验所用软件:Intellij idea 13.0实验过程:(1).在D盘下新建两个文本文件,分别是sendEmail.txt和receiveEmail.txt,在这两个文件里加上两行数据,第一行是邮箱地址,第二行是密码.前者是记录着发送邮件的邮箱地址与邮箱密码,后者记录着查看接收邮件的邮箱地址与密码(2).打开Intellij idea，按FileNew mod

2、ule，新建一个java模块,命名为Email.如下图所示:(3).在Intellij idea的project面板窗口里，双击展开Email，右键单击它的子文件夹“src”，新建一个”java”文件，命名为“Email.java”(4).编写出程序的实现代码/EmailHandler.javaimport javax.activation.DataHandler;import javax.activation.FileDataSource;import javax.mail.*;import ernet.InternetAddress;import javax.m

3、ernet.MimeBodyPart;import ernet.MimeMessage;import ernet.MimeMultipart;import java.io.BufferedReader;import java.io.File;import java.io.FileReader;import java.io.InputStreamReader;import java.util.Date;import java.util.Properties;class EmailHandler private static S

4、tring server = ; private static int port = 25; private String pop3 = ; public void sendEmail(String emailFrom, String emailFromPassword, String emailTo, String emailSubject, String body, String fileName) try File f = new File(fileName); String fName = f.getName(); Properties props = new Properties()

5、; props.put(mail.smtp.host, server); props.put(mail.smtp.port, String.valueOf(port); props.put(mail.smtp.auth, true); Transport transport = null; Session session = Session.getDefaultInstance(props, null); transport = session.getTransport(smtp); transport.connect(server, emailFrom, emailFromPassword)

6、; MimeMessage msg = new MimeMessage(session); msg.setSentDate(new Date(); InternetAddress fromAddress = new InternetAddress(emailFrom); msg.setFrom(fromAddress); InternetAddress toAddress = new InternetAddress1; toAddress0 = new InternetAddress(emailTo); msg.setRecipients(Message.RecipientType.TO, t

7、oAddress); msg.setSubject(emailSubject, UTF-8); MimeMultipart multi = new MimeMultipart(); BodyPart textBodyPart = new MimeBodyPart(); /第一个BodyPart.主要写一些一般的信件内容。 textBodyPart.setText(body);/ 压入第一个BodyPart到MimeMultipart对象中。 multi.addBodyPart(textBodyPart); FileDataSource fds = new FileDataSource(file

8、Name); /必须存在的文档，否则throw异常。 BodyPart fileBodyPart = new MimeBodyPart(); /第二个BodyPart fileBodyPart.setDataHandler(new DataHandler(fds); /字符流形式装入文件 fileBodyPart.setFileName(fName); /设置文件名，可以不是原来的文件名。 multi.addBodyPart(fileBodyPart);/ MimeMultPart作为Content加入message msg.setContent(multi); msg.setFileName

9、(fileName); msg.saveChanges(); transport.sendMessage(msg, msg.getAllRecipients(); catch (NoSuchProviderException e) e.printStackTrace(); catch (MessagingException e) e.printStackTrace(); public void sendEmail(String emailFrom, String emailFromPassword, String emailTo, String emailSubject, String bod

10、y) try Properties props = new Properties(); props.put(mail.smtp.host, server); props.put(mail.smtp.port, String.valueOf(port); props.put(mail.smtp.auth, true); Transport transport = null; Session session = Session.getDefaultInstance(props, null); transport = session.getTransport(smtp); transport.con

11、nect(server, emailFrom, emailFromPassword); MimeMessage msg = new MimeMessage(session); msg.setSentDate(new Date(); InternetAddress fromAddress = new InternetAddress(emailFrom); msg.setFrom(fromAddress); InternetAddress toAddress = new InternetAddress1; toAddress0 = new InternetAddress(emailTo); msg

12、.setRecipients(Message.RecipientType.TO, toAddress); msg.setSubject(emailSubject, UTF-8); msg.setText(body); transport.sendMessage(msg, msg.getAllRecipients(); catch(Exception e) e.printStackTrace(); public void receiveEmail(String pop3, String user, String password) throws Exception Properties prop

13、s = System.getProperties(); Session session = Session.getInstance(props, null); Store store = session.getStore(pop3); store.connect(pop3, user, password); Folder folder = store.getFolder(INBOX); folder.open(Folder.READ_WRITE); Message msg = folder.getMessages(); for (int i = 0; i msg.length; i+) Sys

14、tem.out.println(来自: + msgi.getFrom()0); System.out.println(标题: + msgi.getSubject(); System.out.println(内容: + msgi.getContent() + n); if(msgi.getFrom()0).toString().equalsIgnoreCase String s; BufferedReader in = new BufferedReader(new InputStreamReader(msgi.getInputStream(); System.out.p

15、rintln(-Mail Text-); while(!(s=in.readLine().equals() System.out.println(s); in.close(); folder.close(false); store.close(); public String getUserInputFromCMD(String s) throws Exception System.out.println(s); BufferedReader br = new BufferedReader(new InputStreamReader(System.in); String b; b = br.r

16、eadLine(); String userInput = b.trim(); return userInput; public String getUserInputFromTxt(File file) throws Exception FileReader fr =new FileReader(file); BufferedReader br = new BufferedReader(fr); String data; String userInfo = new String2; int i = 0; while(data = br.readLine() != null) userInfo

17、i = data; i+; return userInfo; public void chooseOperation(EmailHandler iMailMan) throws Exception System.out.println(请选择你要执行的操作：1.发送带附件邮件 2.发送没有携带附件的邮件 3.接收邮件 4.退出); BufferedReader br = new BufferedReader(new InputStreamReader(System.in); char a = (char) br.read(); switch (a) case 1 : String emailT

18、o = iMailMan.getUserInputFromCMD(请输入收件人的邮箱: ); String emailSubject = iMailMan.getUserInputFromCMD(请输入邮件的标题: ); String emailContent = iMailMan.getUserInputFromCMD(请输入邮件的内容: ); String fileName = iMailMan.getUserInputFromCMD(请输入附件的路径,路径中的请加上转义字符: ); /从文件里获取邮箱的账户和密码 String userInfo = iMailMan.getUserInp

19、utFromTxt(new File(D:sendEmail.txt); String emailFrom = userInfo0; String emailFromPassword = userInfo1; iMailMan.sendEmail(emailFrom, emailFromPassword, emailTo, emailSubject, emailContent, fileName); System.out.println(邮件发送成功!); iMailMan.chooseOperation(iMailMan); break; case 2 : String emailTo =

20、iMailMan.getUserInputFromCMD(请输入收件人的邮箱: ); String emailSubject = iMailMan.getUserInputFromCMD(请输入邮件的标题: ); String emailContent = iMailMan.getUserInputFromCMD(请输入邮件的内容: ); /从文件里获取邮箱的账户和密码 String userInfo = iMailMan.getUserInputFromTxt(new File(D:sendEmail.txt); String emailFrom = userInfo0; String emailFromPassword = userInfo1; iMailMan.sendEmail(emailFrom, emailFromPassword, emailTo, emailSubject