java_Email_api 发送邮件简单方法

java email 需要的包

activation.jar

mail.jar

 

定时对指定时间生成的报表发送邮件通知。

 

 

class

---------------------------------------------

身份认证类

package com.yjm.Authenticator;

import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;

public class EmailAuthenticator  extends Authenticator{
          String username;
          String password;
          public EmailAuthenticator(String username,String password){
           this.username=username;
           this.password=password;
          }
          public PasswordAuthentication  getPasswordAuthentication(){
           return new PasswordAuthentication(username, password);
          }
}

 

----------------------------------------------

发送邮件信息类

 

package com.yjm.emailinfo;

public class EmailInfo {
 private String serverName;
 private String username;
 private String password;
 private String port;
 private String fromEmailAddress;
 private String toEmailAddress;
 private String subject;
 private String content;
 private String attachFileNames;

 public String getServerName() {
  return serverName;
 }
 public void setServerName(String serverName) {
  this.serverName = serverName;
 }
 public String getUsername() {
  return username;
 }
 public void setUsername(String username) {
  this.username = username;
 }
 public String getPassword() {
  return password;
 }
 public void setPassword(String password) {
  this.password = password;
 }
 public String getPort() {
  return port;
 }
 public void setPort(String port) {
  this.port = port;
 }
 public String getFromEmailAddress() {
  return fromEmailAddress;
 }
 public void setFromEmailAddress(String fromEmailAddress) {
  this.fromEmailAddress = fromEmailAddress;
 }
 public String getToEmailAddress() {
  return toEmailAddress;
 }
 public void setToEmailAddress(String toEmailAddress) {
  this.toEmailAddress = toEmailAddress;
 }
 public String getSubject() {
  return subject;
 }
 public void setSubject(String subject) {
  this.subject = subject;
 }
 public String getContent() {
  return content;
 }
 public void setContent(String content) {
  this.content = content;
 }
 public String getAttachFileNames() {
  return attachFileNames;
 }
 public void setAttachFileNames(String attachFileNames) {
  this.attachFileNames = attachFileNames;
 }

}

---------------------------------------------------

邮件发送控制类

 

package com.yjm.emailsent;

import java.util.Date;
import java.util.Properties;
import javax.mail.Address;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import com.yjm.Authenticator.EmailAuthenticator;
import com.yjm.emailinfo.EmailInfo;

public class EmailSent {
 Properties pro;

 public void sentEmail(EmailInfo mEmailInfo) {
  EmailAuthenticator mEmailAuthenticator = new EmailAuthenticator(
    mEmailInfo.getUsername(), mEmailInfo.getPassword());
  pro = java.lang.System.getProperties();
  pro.put("mail.smtp.host", mEmailInfo.getServerName());
  pro.put("mail.smtp.port", mEmailInfo.getPort());
  pro.put("mail.smtp.auth", "true");
  Session mSession = Session.getDefaultInstance(pro, mEmailAuthenticator);
  MimeMessage mMessage = new MimeMessage(mSession);
  Address from;
  Address to;
  try {
   from = new InternetAddress(mEmailInfo.getFromEmailAddress());
   to = new InternetAddress(mEmailInfo.getToEmailAddress());

   mMessage.setFrom(from);
   mMessage.setRecipient(Message.RecipientType.TO, to);// to address[]
   // mMessage.setRecipient(Message.RecipientType.CC, cc);//抄送地址数组
   mMessage.setSubject(mEmailInfo.getSubject(), "gb2312");
   mMessage.setSentDate(new Date());

   // 不带附件使用 mMessage.setContent();String 类型
   // 带附件 要在mMessage.setContent(); MimeMultipart类型 带附件

   MimeMultipart mp = new MimeMultipart();
   MimeBodyPart mb = new MimeBodyPart();
   mb.setContent(mEmailInfo.getContent(), "text/plain;charset=GB2312"); // 设置编码
   mb.setHeader("Content-Transfer-Encoding", "base64");
   mp.addBodyPart(mb);
   mMessage.setContent(mp);
//     if (attachment != null) {
//                 BodyPart attachmentBodyPart = new MimeBodyPart();
//                 DataSource source = new FileDataSource(attachment);
//                 attachmentBodyPart.setDataHandler(new DataHandler(source));
                 // 网上流传的解决文件名乱码的方法，其实用MimeUtility.encodeWord就可以很方便的搞定
                 // 这里很重要，通过下面的Base64编码的转换可以保证你的中文附件标题名在发送时不会变成乱码
                 //sun.misc.BASE64Encoder enc = new sun.misc.BASE64Encoder();
                 //messageBodyPart.setFileName("=?GBK?B?" + enc.encode(attachment.getName().getBytes()) + "?=");
                 //MimeUtility.encodeWord可以避免文件名乱码
//                 attachmentBodyPart.setFileName(MimeUtility.encodeWord(attachment.getName()));
//                 multipart.addBodyPart(attachmentBodyPart);
//             }
   // mMessage.setText(mEmailInfo.getContent());/正文
   Transport.send(mMessage);
  } catch (AddressException e) {
   e.printStackTrace();
  } catch (MessagingException e) {
   e.printStackTrace();
  }
 }
}

--------------------------------------------------------------

 

 1.MimeMessage 发送邮件实体类

 2.MimeMultipart 内容载体类  包含 多个MimeBodyPart  内容  附件 

 3.MimeBodyPart 内容附件 存放在此对象里  此对象可多个保存在 MimeMultipart