Java郵件發送程序（可以同時發給多個地址、可以帶附件）
2019-11-26 16:20:20
供稿：網友
發送郵件的主程序
import java.util.Properties;
import common.util.Email_Autherticatorbean;
import javax.mail.Authenticator;
import javax.mail.internet.InternetAddress;
import org.apache.commons.lang.StringUtils;
import javax.mail.internet.MimeBodyPart;
import javax.mail.Multipart;
import javax.activation.FileDataSource;
import javax.mail.internet.MimeMultipart;
import javax.activation.DataHandler;
import javax.mail.internet.MimeUtility;
import java.util.Date;
/**
* 利用java.mail的郵件發送程序
*/
public class SendMailTest
{
public static void main(String[] args)
{
String title = "titleTest";//所發送郵件的標題
String from ="sir_znp@163.com";//從那里發送
String sendTo[] = {"znp@163.net","sir_znp@163.com"};//發送到那里
//郵件的文本內容，可以包含html標記則顯示為html頁面
String content = "mail test!!!!!!<br><a href=#>aaa</a>";
//所包含的附件，及附件的重新命名
String fileNames[] = {"F://music//text1.txt,text1.txt","F://music//text2.txt,text2.txt"};
try {
// MailSender mailsender = new MailSender();
sendmail(title, from, sendTo, content, fileNames,"text/html;charset=gb2312");
} catch (Exception ex) { ex.printStackTrace(); }
}
public static void sendmail(String subject, String from, String[] to, String text, String[] filenames,String mimeType) throws Exception
{
//ResourceBundle mailProps = ResourceBundle.getBundle("mail"); 可以從配置文件讀取相應的參數
Properties props = new Properties();
String smtp = "smtp.163.com"; //設置發送郵件所用到的smtp
String servername = "sir_znp";
String serverpaswd = "123";
javax.mail.Session mailSession; //郵件會話對象
javax.mail.internet.MimeMessage mimeMsg; //MIME郵件對象
props = java.lang.System.getProperties(); //獲得系統屬性對象
props.put("mail.smtp.host", smtp); //設置SMTP主機
props.put("mail.smtp.auth", "true"); //是否到服務器用戶名和密碼驗證
//到服務器驗證發送的用戶名和密碼是否正確
Email_Autherticatorbean myEmailAuther = new Email_Autherticatorbean(servername, serverpaswd);
//設置郵件會話
mailSession = javax.mail.Session.getInstance(props, (Authenticator) myEmailAuther);
//設置傳輸協議
javax.mail.Transport transport = mailSession.getTransport("smtp");
//設置from、to等信息
mimeMsg = new javax.mail.internet.MimeMessage(mailSession);
if (!StringUtils.isEmpty(from))
{
InternetAddress sentFrom = new InternetAddress(from);
mimeMsg.setFrom(sentFrom); //設置發送人地址
}
InternetAddress[] sendTo = new InternetAddress[to.length];
for (int i = 0; i < to.length; i++)
{
System.out.println("發送到:" + to[i]);
sendTo[i] = new InternetAddress(to[i]);
}
mimeMsg.setRecipients(javax.mail.internet.MimeMessage.RecipientType.TO, sendTo);
mimeMsg.setSubject(subject, "gb2312");
MimeBodyPart messageBodyPart1 = new MimeBodyPart();
//messageBodyPart.setText(UnicodeToChinese(text));
messageBodyPart1.setContent(text, mimeType);
Multipart multipart = new MimeMultipart();//附件傳輸格式
multipart.addBodyPart(messageBodyPart1);
for (int i = 0; i < filenames.length; i++) {
MimeBodyPart messageBodyPart2 = new MimeBodyPart();
//選擇出每一個附件名
String filename = filenames[i].split(",")[0];
System.out.println("附件名：" + filename);
String displayname = filenames[i].split(",")[1];
//得到數據源
FileDataSource fds = new FileDataSource(filename);
//得到附件本身并至入BodyPart
messageBodyPart2.setDataHandler(new DataHandler(fds));
//得到文件名同樣至入BodyPart
//messageBodyPart2.setFileName(displayname);
// messageBodyPart2.setFileName(fds.getName());
messageBodyPart2.setFileName(MimeUtility.encodeText(displayname));
multipart.addBodyPart(messageBodyPart2);
}
mimeMsg.setContent(multipart);
//設置信件頭的發送日期
mimeMsg.setSentDate(new Date());
mimeMsg.saveChanges();
//發送郵件
transport.send(mimeMsg);
transport.close();
}
}
驗證類
package common.util;
import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;
public class Email_Autherticatorbean extends Authenticator
{
private String m_username = null;
private String m_userpass = null;
public void setUsername(String username)
{
m_username = username;
}
public void setUserpass(String userpass)
{
m_userpass = userpass;
}
public Email_Autherticatorbean(String username, String userpass)
{
super();
setUsername(username);
setUserpass(userpass);
}
public PasswordAuthentication getPasswordAuthentication()
{
return new PasswordAuthentication(m_username,m_userpass);
}
}
