Java email 案例代码

1. 准备：activation-1.1.jar，mail-1.4.jar

2. MailAuthenticator.java,MailSender.java，MailSenderInfo.java，MailSendService.java

    MailSenderInfo.java

public class MailSenderInfo { // 发送邮件的服务器的IP和端口 private String mailServerHost; 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; // 邮件接收者的地址 private String[] toAddressArray; // 邮件抄送的地址 private String cc;// 邮件抄送的地址 private String[] ccArray;// 邮件密送的地址 private String bcc;// 登陆邮件发送服务器的用户名和密码 private String userName; private String password; // 是否需要身份验证 private boolean validate = true; // 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 p = new Properties();   p.put("mail.smtp.host", this.mailServerHost);   p.put("mail.smtp.port", this.mailServerPort);   p.put("mail.smtp.auth", validate ? "true" : "false");   return p; } 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 boolean isValidate() {   return validate; }public void setValidate(boolean validate) {   this.validate = validate; }public String[] getAttachFileNames() {   return attachFileNames; }public void setAttachFileNames(String[] fileNames) {   this.attachFileNames = fileNames; }public String getFromAddress() {   return fromAddress; } public void setFromAddress(String fromAddress) {   this.fromAddress = fromAddress; }public String getPassword() {   return password; }public void setPassword(String password) {   this.password = password; }public String getToAddress() {   return toAddress; } public void setToAddress(String toAddress) {   this.toAddress = toAddress; } public String getCc() {   return cc; } public void setCc(String cc) {   this.cc = cc; } public String[] getToAddressArray() {   return toAddressArray; } public void setToAddressArray(String[] toAddressArray) {   this.toAddressArray = toAddressArray; } public String[] getCcArray() {   return ccArray; } public void setCcArray(String[] ccArray) {   this.ccArray = ccArray; }public String getBcc() {   return bcc; } public void setBcc(String bcc) {   this.bcc = bcc; }public String getUserName() {   return userName; }public void setUserName(String userName) {   this.userName = userName; }public String getSubject() {   return subject; }public void setSubject(String subject) {   this.subject = subject; }public String getContent() {   return content; }public void setContent(String textContent) {   this.content = textContent; } } 

MailSender.java

public class MailSender  { /**   * 以文本格式发送邮件   * @param mailInfo 待发送的邮件的信息  * @throws UnsupportedEncodingException   */ public boolean sendTextMail(MailSenderInfo mailInfo) throws UnsupportedEncodingException {   // 判断是否需要身份认证 MailAuthenticator authenticator = null;   Properties pro = mailInfo.getProperties();  if (mailInfo.isValidate()) {   // 如果需要身份认证，则创建一个密码验证器 authenticator = new MailAuthenticator(mailInfo.getUserName(), mailInfo.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(pro,authenticator);   try {   // 根据session创建一个邮件消息   Message mailMessage = new MimeMessage(sendMailSession); // 向multipart对象中添加邮件的各个部分内容，包括文本内容和附件      Multipart multipart = new MimeMultipart();                       //设置邮件的文本内容      BodyPart contentPart = new MimeBodyPart();      // 设置邮件消息的主要内容   String mailContent = mailInfo.getContent();      contentPart.setText(mailContent);      multipart.addBodyPart(contentPart);      //添加附件      //附件列表      String[] attachFileNames = mailInfo.getAttachFileNames();      for(int i = 0;i<attachFileNames.length;i++){      BodyPart attachPart = new MimeBodyPart();      FileDataSource source = new FileDataSource(attachFileNames[i]);      //添加附件的内容      attachPart.setDataHandler(new DataHandler(source));      //添加附件的标题      //转码中文附件标题//      sun.misc.BASE64Encoder enc = new sun.misc.BASE64Encoder();      attachPart.setFileName(MimeUtility.encodeText(source.getName()));             multipart.addBodyPart(attachPart);      }              //将multipart对象放到message中      mailMessage.setContent(multipart);      // 创建邮件发送者地址   Address from = new InternetAddress(mailInfo.getFromAddress());   // 设置邮件消息的发送者   mailMessage.setFrom(from);   // 创建邮件的接收者地址，并设置到邮件消息中 //  Address to = new InternetAddress(mailInfo.getToAddress()); //  mailMessage.setRecipient(Message.RecipientType.TO,to);  String[] toArray = mailInfo.getToAddressArray();  Address[] to = new InternetAddress[toArray.length];  for(int i = 0;i<toArray.length;i++){  to[i] = new InternetAddress(toArray[i]);  }  mailMessage.setRecipients(Message.RecipientType.TO, to);  //抄送人  String[] ccArray = mailInfo.getCcArray();  Address[] cc = new InternetAddress[ccArray.length];  for(int i = 0;i<ccArray.length;i++){  cc[i] = new InternetAddress(ccArray[i]);  }  mailMessage.setRecipients(Message.RecipientType.CC, cc);  //密送人  String bccString = mailInfo.getBcc();  if(bccString!=null&&!"".equals(bccString)){  Address bcc = new InternetAddress(bccString.trim());  mailMessage.setRecipient(Message.RecipientType.BCC,bcc);  }  // 设置邮件消息的主题   mailMessage.setSubject(mailInfo.getSubject());   // 设置邮件消息发送的时间   mailMessage.setSentDate(new Date());      //保存邮件      mailMessage.saveChanges();  // 发送邮件   Transport.send(mailMessage);  return true;   } catch (MessagingException ex) {   ex.printStackTrace();   }   return false; } /**   * 以HTML格式发送邮件   * @param mailInfo 待发送的邮件信息  * @throws UnsupportedEncodingException   */ public static boolean sendHtmlMail(MailSenderInfo mailInfo) throws UnsupportedEncodingException{   // 判断是否需要身份认证 MailAuthenticator authenticator = null;  Properties pro = mailInfo.getProperties();  //如果需要身份认证，则创建一个密码验证器    if (mailInfo.isValidate()) { authenticator = new MailAuthenticator(mailInfo.getUserName(), mailInfo.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(pro,authenticator);   try {   // 根据session创建一个邮件消息   Message mailMessage = new MimeMessage(sendMailSession);   // 创建邮件发送者地址   Address from = new InternetAddress(mailInfo.getFromAddress());   // 设置邮件消息的发送者   mailMessage.setFrom(from);   // 创建邮件的接收者地址，并设置到邮件消息中 //  Address to = new InternetAddress(mailInfo.getToAddress());   // Message.RecipientType.TO属性表示接收者的类型为TO //  mailMessage.setRecipient(Message.RecipientType.TO,to);   String[] toArray = mailInfo.getToAddressArray();  Address[] to = new InternetAddress[toArray.length];  for(int i = 0;i<toArray.length;i++){  to[i] = new InternetAddress(toArray[i]);  }  mailMessage.setRecipients(Message.RecipientType.TO, to);  //抄送人  String[] ccArray = mailInfo.getCcArray();  Address[] cc = new InternetAddress[ccArray.length];  for(int i = 0;i<ccArray.length;i++){  cc[i] = new InternetAddress(ccArray[i]);  }  mailMessage.setRecipients(Message.RecipientType.CC, cc);  //密送人  String bccString = mailInfo.getBcc();  if(bccString!=null&&!"".equals(bccString)){  Address bcc = new InternetAddress(bccString.trim());  mailMessage.setRecipient(Message.RecipientType.BCC,bcc);  }  // 设置邮件消息的主题   mailMessage.setSubject(mailInfo.getSubject());   // 设置邮件消息发送的时间   mailMessage.setSentDate(new Date());   // MiniMultipart类是一个容器类，包含MimeBodyPart类型的对象   Multipart mainPart = new MimeMultipart();   // 创建一个包含HTML内容的MimeBodyPart   BodyPart html = new MimeBodyPart();   // 设置HTML内容   html.setContent(mailInfo.getContent(), "text/html; charset=utf-8");   mainPart.addBodyPart(html);   //添加附件      //附件列表      String[] attachFileNames = mailInfo.getAttachFileNames();      for(int i = 0;i<attachFileNames.length;i++){      BodyPart attachPart = new MimeBodyPart();      FileDataSource source = new FileDataSource(attachFileNames[i]);      //添加附件的内容      attachPart.setDataHandler(new DataHandler(source));      //添加附件的标题      //转码中文附件标题      attachPart.setFileName(MimeUtility.encodeText(source.getName()));       mainPart.addBodyPart(attachPart);      }  // 将MiniMultipart对象设置为邮件内容   mailMessage.setContent(mainPart);   //保存邮件      mailMessage.saveChanges();  // 发送邮件   Transport.send(mailMessage);   return true;   } catch (MessagingException ex) {   ex.printStackTrace();   }   return false; } } 

MailAuthenticator.java

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

MailSendService.java

public class MailSendService {public String providerId = "emailconfig";  //提供键值public String label = "yzsh";  //邮箱服务别名public String smtpHost_ = "smtpHost_"; //邮箱服务器public String smtpPort_ = "smtpPort_"; //邮箱服务端口public String smtpUser_ = "smtpUser_"; //邮箱用户public String smtpPassword_ = "smtpPassword_"; //密码public String smtpAccount_ = "smtpAccount_";   //服务邮箱/** * 初始化邮箱服务器配置 */public MailSenderInfo initMailSenderInfo(MailSenderInfo mailSenderInfo){//取得iplat平台资源信息中邮件配置String smtpHost = Resources.getValue(providerId, this.smtpHost_ + label);    String smtpPort = Resources.getValue(providerId, this.smtpPort_ + label);    String smtpUser = Resources.getValue(providerId, this.smtpUser_ + label);    String smtpPassword = Resources.getValue(providerId, this.smtpPassword_ + label);    String smtpAccount = Resources.getValue(providerId, this.smtpAccount_ + label);        //初始化邮件属性    mailSenderInfo.setMailServerHost(smtpHost);    if (smtpPort != null) {        mailSenderInfo.setMailServerPort(smtpPort);     }    mailSenderInfo.setUserName(smtpUser);    mailSenderInfo.setPassword(smtpPassword);    mailSenderInfo.setFromAddress(smtpAccount);return mailSenderInfo ;}/** * 发送邮件 * @throws UnsupportedEncodingException  * @param toArray * @param subject * @param content */public EiInfo sendMail(String[] toArray,String subject,String content) throws UnsupportedEncodingException{return sendMail(toArray,new String[0],subject,content,new String[0],false);}/** * 发送邮件 * @throws UnsupportedEncodingException  * @param toArray * @param subject * @param content * @param isHtmlMail */public EiInfo sendMail(String[] toArray,String subject,String content,Boolean isHtmlMail) throws UnsupportedEncodingException{return sendMail(toArray,new String[0],subject,content,new String[0],isHtmlMail);}/** * 发送邮件 * @throws UnsupportedEncodingException  * @param toArray * @param ccArray * @param subject * @param content */public EiInfo sendMail(String[] toArray,String[] ccArray,String subject,String content) throws UnsupportedEncodingException{return sendMail(toArray,ccArray,subject,content,new String[0],false);}/** * 发送邮件 * @throws UnsupportedEncodingException  * @param toArray * @param ccArray * @param subject * @param content  * @param isHtmlMail */public EiInfo sendMail(String[] toArray,String[] ccArray,String subject,String content,Boolean isHtmlMail) throws UnsupportedEncodingException{return sendMail(toArray,ccArray,subject,content,new String[0],isHtmlMail);}/** * 发送邮件 * @throws UnsupportedEncodingException  * @param toArray * @param ccArray * @param subject * @param content * @param attachFileNames */public EiInfo sendMail(String[] toArray,String[] ccArray,String subject,String content,String[] attachFileNames) throws UnsupportedEncodingException{return sendMail(toArray,ccArray,subject,content,attachFileNames,false);}/** * 发送邮件 * @throws UnsupportedEncodingException  * @param toArray * @param ccArray  * @param subject * @param content * @param attachFileNames * @param isHtmlMail */public EiInfo sendMail(String[] toArray,String[] ccArray,String subject,String content,String[] attachFileNames,Boolean isHtmlMail) throws UnsupportedEncodingException{EiInfo eiInfo = new EiInfo();MailSenderInfo mailInfo = new MailSenderInfo();//初始化邮箱服务器配置initMailSenderInfo(mailInfo);//设置邮件信息 mailInfo.setToAddressArray(toArray);mailInfo.setCcArray(ccArray);mailInfo.setSubject(subject); mailInfo.setContent(content); mailInfo.setAttachFileNames(attachFileNames);//发送邮件MailSender sms = new MailSender();if(isHtmlMail){sms.sendHtmlMail(mailInfo);//发送html格式}else{sms.sendTextMail(mailInfo);//发送文体格式}return eiInfo ;}}

注释：EiInfo为公司定义数据容器