今天闲着无事，研究了一下javaMail发送电子邮件的方法，自己总结了个步骤：
1、首先需要获取发送邮件的Session对象
Session session = Session.getDefaultInstance(properties,authorcator);
2、根据session对象，获取待发送的邮件消息
MimeMessage mimeMessage = new MimeMessage(session);
3、设置发件人，收件人，标题，邮件内容，附件，发送时间等；
4、利用Transport发送邮件
以下是居然的实现代码：
1、邮件信息类：
package com.china.test.mail;
import java.util.Properties;
/**
* 发送邮件需要使用的基本信息
* @author dove *
*/
public class MailSenderInfo {
// 发送邮件的服务器的IP
private String mailServerHost;
// 发送邮件的服务器的端口
private String mailServerPort = "25";
// 邮件发送者的地址
private String fromAddress;
// 邮件接收者的地址
private String[] toAddress;
// 邮件密送接收者的地址
private String[] toBlindCarbonCopyAddress;
// 邮件抄送接收者的地址
private String[] toCarbonCopyAddress;
// 登陆邮件发送服务器的用户名
private String userName;
// 登陆邮件发送服务器的密码
private String password;
// 是否需要身份验证
private boolean validate = false;
// 邮件主题
private String subject;
// 邮件的文本内容
private String content;
// 邮件附件的文件名
private String[] attachFileNames;
/**
* 获得邮件会话属性
*/
public Properties getProperties() {
Properties pro = new Properties();
pro.put("mail.smtp.host", this.mailServerHost);
pro.put("mail.smtp.port", this.mailServerPort);
pro.put("mail.smtp.auth", validate ? "true" : "false");
return pro;
}
public String getMailServerHost() {
return mailServerHost;
}
public void setMailServerHost(String mailServerHost) {
this.mailServerHost = mailServerHost;
}
public String getMailServerPort() {
return mailServerPort;
}
public void setMailServerPort(String mailServerPort) {
this.mailServerPort = mailServerPort;
}
public String getFromAddress() {
return fromAddress;
}
public void setFromAddress(String fromAddress) {
this.fromAddress = fromAddress;
}
public String[] getToAddress() {
return toAddress;
}
public void setToAddress(String[] toAddress) {
this.toAddress = toAddress;
}
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 boolean isValidate() {
return validate;
}
public void setValidate(boolean validate) {
this.validate = validate;
}
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;
}
public String[] getToBlindCarbonCopyAddress() {
return toBlindCarbonCopyAddress;
}
public void setToBlindCarbonCopyAddress(String[] toBlindCarbonCopyAddress) {
this.toBlindCarbonCopyAddress = toBlindCarbonCopyAddress;
}
public String[] getToCarbonCopyAddress() {
return toCarbonCopyAddress;
}
public void setToCarbonCopyAddress(String[] toCarbonCopyAddress) {
this.toCarbonCopyAddress = toCarbonCopyAddress;
}
}
2、身份验证类
package com.china.test.mail;
import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;
/**
* 身份验证器
* @author dove
*
*/
public class MyAuthenticator extends Authenticator {
private String username;
private String password;
public MyAuthenticator(){
}
public MyAuthenticator(String username, String password) {
this.username = username;
this.password = password;
}
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
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;
}
}
3、发送邮件类
该类有两个功能，一个是发送普通文本邮件；一个是发送html邮件，两者的本质是相同的，mime类型有所区别而已，具体请看代码：
package com.china.test.mail;
import java.io.UnsupportedEncodingException;
import java.util.Date;
import java.util.Properties;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.Address;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
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 javax.mail.internet.MimeUtility;
/**
* 简单邮件发送器
* @author dove *
*/
public class SimpleMailSender {
/**
* 以文本格式发送邮件 (支持群发,带附件)
* @param senderInfo 待发送的邮件的信息
* @return
*/
public static boolean sendMail(MailSenderInfo senderInfo){
boolean flag = false;
// 判断是否需要身份验证
MyAuthenticator authenticator = null;
Properties props = senderInfo.getProperties();
if(senderInfo.isValidate()){
// 如果需要身份认证，则创建一个密码验证器
authenticator = new MyAuthenticator(senderInfo.getUserName(), senderInfo.getPassword());
}
// 根据邮件会话属性和密码验证器构造一个发送邮件的session
Session sendMailSession = Session.getDefaultInstance(props, authenticator);
try {
// 根据session创建一个邮件消息
Message sendMailMessage = new MimeMessage(sendMailSession);
// 创建邮件发送者地址
Address from = new InternetAddress(senderInfo.getFromAddress());
// 设置邮件消息的发送者
sendMailMessage.setFrom(from);
// 创建邮件接收者地址
String[] tos = senderInfo.getToAddress();
if(tos != null && tos.length != 0){
InternetAddress[] to = new InternetAddress[tos.length];
// 设置邮件消息的发送者
for (int i = 0; i < tos.length; i++) {
to[i] = new InternetAddress(tos[i]);
}
sendMailMessage.setRecipients(Message.RecipientType.TO, to);
}
// 设置邮件抄送者地址
String[] toCCs = senderInfo.getToCarbonCopyAddress();
if(toCCs != null && toCCs.length != 0){
InternetAddress[] toCC = new InternetAddress[toCCs.length];
// 设置邮件消息的发送者
for (int i = 0; i < toCCs.length; i++) {
toCC[i] = new InternetAddress(toCCs[i]);
}
sendMailMessage.addRecipients(Message.RecipientType.CC, toCC);
}
// 设置邮件密送者地址
String[] toBCCs = senderInfo.getToBlindCarbonCopyAddress();
if(toBCCs != null && toBCCs.length != 0){
InternetAddress[] toBCC = new InternetAddress[toBCCs.length];
for (int i = 0; i < toBCCs.length; i++) {
toBCC[i] = new InternetAddress(toBCCs[i]);
}
sendMailMessage.addRecipients(Message.RecipientType.BCC, toBCC);
}
// 设置邮件主题
sendMailMessage.setSubject(MimeUtility.encodeText(senderInfo.getSubject(),"utf-8","B"));
// 设置邮件内容
//sendMailMessage.setText(senderInfo.getContent());
Multipart multipart = new MimeMultipart();
// 邮件文本内容
if(senderInfo.getContent() != null && !"".equals(senderInfo.getContent())){
BodyPart part = new MimeBodyPart();
part.setContent(senderInfo.getContent(), "text/plain;charset=utf-8");//设置邮件文本内容
multipart.addBodyPart(part);
}
// 附件
String attachFileNames[] = senderInfo.getAttachFileNames();
int leng = attachFileNames == null ? 0 : attachFileNames.length;
for (int i = 0; i < leng; i++) {
BodyPart part = new MimeBodyPart();
// 根据文件名获取数据源
DataSource dataSource = new FileDataSource(attachFileNames[i]);
DataHandler dataHandler = new DataHandler(dataSource);
// 得到附件本身并至入BodyPart
part.setDataHandler(dataHandler);
// 得到文件名同样至入BodyPart
part.setFileName(MimeUtility.encodeText(dataSource.getName()));
multipart.addBodyPart(part);
}
sendMailMessage.setContent(multipart);
// 设置邮件发送的时间
sendMailMessage.setSentDate(new Date());
// 发送邮件
//Transport.send(sendMailMessage);
Transport transport = sendMailSession.getTransport("smtp");
transport.connect(senderInfo.getUserName(), senderInfo.getPassword());
transport.send(sendMailMessage,sendMailMessage.getAllRecipients());
transport.close();
flag = true;
} catch (AddressException e) {
e.printStackTrace();
} catch (MessagingException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return flag;
}
public static boolean sendHtmlMail(MailSenderInfo senderInfo){
boolean flag = false;
// 判断是否需要身份验证
MyAuthenticator authenticator = null;
Properties props = senderInfo.getProperties();
if(senderInfo.isValidate()){
// 如果需要身份认证，则创建一个密码验证器
authenticator = new MyAuthenticator(senderInfo.getUserName(), senderInfo.getPassword());
}
// 根据邮件会话属性和密码验证器构造一个发送邮件的session
Session sendMailSession = Session.getDefaultInstance(props, authenticator);
try {
// 根据session创建一个邮件消息
Message sendMailMessage = new MimeMessage(sendMailSession);
// 创建邮件发送者地址
Address from = new InternetAddress(senderInfo.getFromAddress());
// 设置邮件消息的发送者
sendMailMessage.setFrom(from);
// 创建邮件接收者地址
String[] tos = senderInfo.getToAddress();
if(tos != null && tos.length != 0){
InternetAddress[] to = new InternetAddress[tos.length];
// 设置邮件消息的发送者
for (int i = 0; i < tos.length; i++) {
to[i] = new InternetAddress(tos[i]);
}
sendMailMessage.setRecipients(Message.RecipientType.TO, to);
}
// 设置邮件抄送者地址
String[] toCCs = senderInfo.getToCarbonCopyAddress();
if(toCCs != null && toCCs.length != 0){
InternetAddress[] toCC = new InternetAddress[toCCs.length];
// 设置邮件消息的发送者
for (int i = 0; i < toCCs.length; i++) {
toCC[i] = new InternetAddress(toCCs[i]);
}
sendMailMessage.addRecipients(Message.RecipientType.CC, toCC);
}
// 设置邮件密送者地址
String[] toBCCs = senderInfo.getToBlindCarbonCopyAddress();
if(toBCCs != null && toBCCs.length != 0){
InternetAddress[] toBCC = new InternetAddress[toBCCs.length];
for (int i = 0; i < toBCCs.length; i++) {
toBCC[i] = new InternetAddress(toBCCs[i]);
}
sendMailMessage.addRecipients(Message.RecipientType.BCC, toBCC);
}
// 设置邮件主题
sendMailMessage.setSubject(MimeUtility.encodeText(senderInfo.getSubject(),"utf-8","B"));
// 设置邮件内容
//sendMailMessage.setText(senderInfo.getContent());
Multipart multipart = new MimeMultipart();
// 邮件文本内容
if(senderInfo.getContent() != null && !"".equals(senderInfo.getContent())){
BodyPart part = new MimeBodyPart();
part.setContent(senderInfo.getContent(), "text/html;charset=utf-8");//设置邮件文本内容
multipart.addBodyPart(part);
}
// 附件
String attachFileNames[] = senderInfo.getAttachFileNames();
int leng = attachFileNames == null ? 0 : attachFileNames.length;
for (int i = 0; i < leng; i++) {
BodyPart part = new MimeBodyPart();
// 根据文件名获取数据源
DataSource dataSource = new FileDataSource(attachFileNames[i]);
DataHandler dataHandler = new DataHandler(dataSource);
// 得到附件本身并至入BodyPart
part.setDataHandler(dataHandler);
// 得到文件名同样至入BodyPart
part.setFileName(MimeUtility.encodeText(dataSource.getName()));
multipart.addBodyPart(part);
}
sendMailMessage.setContent(multipart);
// 设置邮件发送的时间
sendMailMessage.setSentDate(new Date());
// 发送邮件
//Transport.send(sendMailMessage);
Transport transport = sendMailSession.getTransport("smtp");
transport.connect(senderInfo.getUserName(), senderInfo.getPassword());
transport.send(sendMailMessage,sendMailMessage.getAllRecipients());
// 关闭transport
transport.close();
flag = true;
} catch (AddressException e) {
e.printStackTrace();
} catch (MessagingException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return flag;
}
public static void main(String[] args) {
MailSenderInfo mailInfo = new MailSenderInfo();
mailInfo.setMailServerHost("smtp.sina.com");
mailInfo.setMailServerPort("25");
mailInfo.setValidate(true);
mailInfo.setUserName("********@sina.com");
mailInfo.setPassword("*********");// 您的邮箱密码
mailInfo.setFromAddress("[email protected]");
String[] to = {"********@bj.china.com"};
mailInfo.setToAddress(to);
String[] toCC = {"**********@qq.com"};
mailInfo.setToCarbonCopyAddress(toCC);
String[] toBCC = {"*******@sina.com"};
mailInfo.setToBlindCarbonCopyAddress(toBCC);
mailInfo.setAttachFileNames(new String[]{"C:/Documents and Settings/Administrator/桌面/考勤休假制度表格（新）.xls","C:/Documents and Settings/Administrator/桌面/dove.jpg"});
mailInfo.setSubject("发送HTML邮件");
String body = "<table width=\"80%\" border=\"1\" cellpadding=\"0\" cellspacing=\"0\" style=\"align:center;text-align:center\"><tr><td>你好</td><td>你好</td><td>你好</td></tr></table>";
mailInfo.setContent(body);
// 这个类主要来发送邮件
System.out.println(SimpleMailSender.sendHtmlMail(mailInfo));;//发送文体格式
}
}
本代码必须依赖与mail.jar 包，请自行下载。