一个完整发送邮件的例子

一个完整发送邮件的例子。

public class SendEmail {
private Log log = LogFactory.getLog(getClass());
private String[] to = {};//接收人
private String[] cc ={};//抄收人
private String from = "";//发送人
private String host = "";//host
private String subject = "";//主题
private String username = "";//用户名
private String password = "";//密码
private String content = "";//内容
private String auth = "false";//auth验证
//实例当前类时，加载相关参数
public SendEmail(String[] to, String[] cc, String from, String subject,String content) {
PropertiesConfig propertiesConfig = null;
try {
propertiesConfig = PropertiesConfig.getInstance();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
this.setHost(propertiesConfig.getValue("smtpHost"));
this.setUsername(propertiesConfig.getValue("emailUserName"));
this.setPassword(propertiesConfig.getValue("emailPWD"));
this.setAuth(propertiesConfig.getValue("auth"));
this.setTo(to);
this.setFrom(from);
this.setCc(cc);
this.setSubject(subject);
this.setContent(content);
}
public boolean startSend() {
Properties props = System.getProperties();
props.put("mail.smtp.host", this.getHost());
props.put("mail.smtp.username", this.getUsername());
props.put("mail.smtp.password", this.getPassword());
props.put("mail.smtp.auth", this.getAuth());

Session session = Session.getInstance(props);
try {
MimeMessage msg = new MimeMessage(session);
msg.setFrom(new InternetAddress(this.getFrom()));

InternetAddress[] address = new InternetAddress[getTo().length];
for (int i = 0; i < getTo().length; i++) {
address[i] = new InternetAddress(getTo()[i]);
}
msg.setRecipients(Message.RecipientType.TO, address);
if (null != cc && cc.length > 0) {
InternetAddress[] addressCC = new InternetAddress[getCc().length];
for (int i = 0; i < getCc().length; i++) {
addressCC[i] = new InternetAddress(getCc()[i]);
}
msg.setRecipients(Message.RecipientType.CC, addressCC);
}
if (null!=cc&&cc.length>0) {
msg.setHeader("Disposition-Notification-To", cc[0]);
}//设置回执，其中cc[0]可以指向你回执的邮箱
msg.setHeader("Sensitivity", "Company-Confidential");//设置机密邮件
msg.setHeader ( "X-Priority", "1" ) ; //设置优先级
msg.setSubject(this.getSubject());//设置主题
Multipart mp = new MimeMultipart();
Enumeration efile = file.elements();
while (efile.hasMoreElements()) {//循环加载所有附件
MimeBodyPart mbp = new MimeBodyPart();
filename = efile.nextElement().toString();
FileDataSource fds = new FileDataSource(filename);
mbp.setDataHandler(new DataHandler(fds));
mbp.setFileName(fds.getName());
mp.addBodyPart(mbp);
}
file.removeAllElements();
msg.setSentDate(new Date());
MimeBodyPart mbpt = new MimeBodyPart();
mbpt.setContent(this.getContent(), "text/html;charset=UTF-8");
mp.addBodyPart(mbpt);
msg.setContent(mp);
msg.saveChanges();
Transport transport = session.getTransport("smtp");
if ("false".equals(this.getAuth())) {
transport.connect();
} else {
transport.connect(getHost(), getUsername(), getPassword());
}
transport.sendMessage(msg, msg.getAllRecipients());
transport.close();
log.info("send mail success;eMailAddress:"+to);
} catch (MessagingException mex) {
log.error("send mail exception, cause: " + mex);
Exception ex = null;
if ((ex = mex.getNextException()) != null) {
log.error("send mail exception, cause: " + ex);
}
return false;
}
return true;
}
public String[] getTo() {
return to;
}
public void setTo(String[] to) {
this.to = to;
}

public String getFrom() {
return from;
}
public String[] getCc() {
return cc;
}
public void setCc(String[] cc) {
this.cc = cc;
}
public void setFrom(String from) {
this.from = from;
}
public String getHost() {
return host;
}
public void setHost(String host) {
this.host = host;
}
public String getSubject() {
return subject;
}
public void setSubject(String subject) {
this.subject = subject;
}
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 getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
public String getAuth() {
return auth;
}
public void setAuth(String auth) {
this.auth = auth;
}
private String filename = "";
Vector file = new Vector();
//多附件的操作
public boolean attachfile(String fname) {
File dataFile = new File(fname);
if (dataFile.exists()) {
file.addElement(fname);
return true;
}else{
return false;
}
}

}