import java.util.Date;
import java.util.Enumeration;
import java.util.Properties;
import java.util.Vector;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.internet.MimeUtility;
/**
* <p>
* Title: 使用javamail发送邮件
* </p>
*/
public class MailUtils {
String to = "";// 收件人
String from = "";// 发件人
String host = "";// smtp主机
String username = "";
String password = "";
String filename = "";// 附件文件名
String subject = "";// 邮件主题
String content = "";// 邮件正文
Vector file = new Vector();// 附件文件集合
/**
* <br>
* 方法说明:默认构造器 <br>
* 输入参数: <br>
* 返回类型:
*/
public MailUtils() {
}
/**
* <br>
* 方法说明:构造器,提供直接的参数传入 <br>
* 输入参数: <br>
* 返回类型:
*/
public MailUtils(String to, String from, String smtpServer,
String username, String password, String subject, String content) {
this.to = to;
this.from = from;
this.host = smtpServer;
this.username = username;
this.password = password;
this.subject = subject;
this.content = content;
}
/**
* <br>
* 方法说明:设置邮件服务器地址 <br>
* 输入参数:String host 邮件服务器地址名称 <br>
* 返回类型:
*/
public void setHost(String host) {
this.host = host;
}
/**
* <br>
* 方法说明:设置登录服务器校验密码 <br>
* 输入参数: <br>
* 返回类型:
*/
public void setPassWord(String pwd) {
this.password = pwd;
}
/**
* <br>
* 方法说明:设置登录服务器校验用户 <br>
* 输入参数: <br>
* 返回类型:
*/
public void setUserName(String usn) {
this.username = usn;
}
/**
* <br>
* 方法说明:设置邮件发送目的邮箱 <br>
* 输入参数: <br>
* 返回类型:
*/
public void setTo(String to) {
this.to = to;
}
/**
* <br>
* 方法说明:设置邮件发送源邮箱 <br>
* 输入参数: <br>
* 返回类型:
*/
public void setFrom(String from) {
this.from = from;
}
/**
* <br>
* 方法说明:设置邮件主题 <br>
* 输入参数: <br>
* 返回类型:
*/
public void setSubject(String subject) {
this.subject = subject;
}
/**
* <br>
* 方法说明:设置邮件内容 <br>
* 输入参数: <br>
* 返回类型:
*/
public void setContent(String content) {
this.content = content;
}
/**
* <br>
* 方法说明:把主题转换为中文 <br>
* 输入参数:String strText <br>
* 返回类型:
*/
public String transferChinese(String strText) {
try {
strText = MimeUtility.encodeText(new String(strText.getBytes(),
"GB2312"), "GB2312", "B");
} catch (Exception e) {
e.printStackTrace();
}
return strText;
}
/**
* <br>
* 方法说明:往附件组合中添加附件 <br>
* 输入参数: <br>
* 返回类型:
*/
public void attachfile(String fname) {
file.addElement(fname);
}
/**
* <br>
* 方法说明:发送邮件 <br>
* 输入参数: <br>
* 返回类型:boolean 成功为true,反之为false
*/
public boolean sendMail() {
// 构造mail session
Properties props = new Properties();
props.put("mail.smtp.host", host);
props.put("mail.smtp.auth", "true");
Session session = Session.getDefaultInstance(props);
//Session session = Session.getDefaultInstance(props);
// Session session = Session.getDefaultInstance(props, null);
try {
// 构造MimeMessage 并设定基本的值
MimeMessage msg = new MimeMessage(session);
//MimeMessage msg = new MimeMessage();
msg.setFrom(new InternetAddress(from));
//msg.addRecipients(Message.RecipientType.TO, address); //这个只能是给一个人发送email
msg.setRecipients(Message.RecipientType.BCC, InternetAddress.parse(to)) ;
subject = transferChinese(subject);
msg.setSubject(subject);
// 构造Multipart
Multipart mp = new MimeMultipart();
// 向Multipart添加正文
MimeBodyPart mbpContent = new MimeBodyPart();
mbpContent.setContent(content, "text/html;charset=gb2312");
// 向MimeMessage添加(Multipart代表正文)
mp.addBodyPart(mbpContent);
// 向Multipart添加附件
Enumeration efile = file.elements();
while (efile.hasMoreElements()) {
MimeBodyPart mbpFile = new MimeBodyPart();
filename = efile.nextElement().toString();
FileDataSource fds = new FileDataSource(filename);
mbpFile.setDataHandler(new DataHandler(fds));
//<span style="color: #ff0000;">//这个方法可以解决附件乱码问题。</span>
String filename= new String(fds.getName().getBytes(),"ISO-8859-1");
mbpFile.setFileName(filename);
// 向MimeMessage添加(Multipart代表附件)
mp.addBodyPart(mbpFile);
}
file.removeAllElements();
// 向Multipart添加MimeMessage
msg.setContent(mp);
msg.setSentDate(new Date());
msg.saveChanges() ;
// 发送邮件
Transport transport = session.getTransport("smtp");
transport.connect(host, username, password);
transport.sendMessage(msg, msg.getAllRecipients());
transport.close();
} catch (Exception mex) {
mex.printStackTrace();
// Exception ex = null;
// if ((ex = mex.getNextException()) != null) {
// ex.printStackTrace();
// }
return false;
}
return true;
}
/**
* <br>
* 方法说明:主方法,用于测试 <br>
* 输入参数: <br>
* 返回类型:
*/
public static void main(String[] args) {
MailUtils sendmail = new MailUtils();
sendmail.setHost("smtp.163.com");
sendmail.setUserName("[email protected]");
sendmail.setPassWord("xxxxxx");
sendmail.setTo("[email protected]");
sendmail.setFrom("[email protected]");
sendmail.setSubject("你好,这是测试!");
sendmail.setContent("你好这是一个带多附件的测试!");
// Mail sendmail = new
// Mail("[email protected]","[email protected]","smtp.sohu.com","du_jiang","31415926","你好","胃,你好吗?");
//sendmail.attachfile("d:\\news.rar");
//sendmail.attachfile("d:\\jhjl.rar");
System.out.println(sendmail.sendMail());
}
}