java 发邮件工具类_(Java) 发送邮件工具类

packagecom.newpay.common;importjavax.activation.DataHandler;importjavax.activation.FileDataSource;import javax.mail.*;import javax.mail.internet.*;importjava.io.UnsupportedEncodingException;importjava.util.Date;importjava.util.Properties;public classEmailUtils {//发送的邮箱 内部代码只适用qq邮箱

private static final String USER = "xxxx@qq.com";//授权密码 通过QQ邮箱设置->账户->POP3/IMAP/SMTP/Exchange/CardDAV/CalDAV服务->开启POP3/SMTP服务获取

private static final String PWD = "";privateString[] to;private String[] cc;//抄送

private String[] bcc;//密送

private String[] fileList;//附件

private String subject;//主题

private String content;//内容，可以用html语言写//后加的防止题目过长或附件名称有中文进行全局定义

static{

System.setProperty("mail.mime.splitlongparameters","false");

System.setProperty("mail.mime.charset","UTF-8");

}public void sendMessage() throwsMessagingException, UnsupportedEncodingException {//配置发送邮件的环境属性

final Properties props = newProperties();//下面两段代码是设置ssl和端口，不设置发送不出去。

props.setProperty("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");//props.setProperty("mail.smtp.port", "465");

props.setProperty("mail.smtp.socketFactory.port", "465");//表示SMTP发送邮件，需要进行身份验证//设置传输协议

props.setProperty("mail.transport.protocol", "smtp");

props.put("mail.smtp.auth", "true");//QQ邮箱的服务器 如果是企业邮箱或者其他邮箱得更换该服务器地址

props.put("mail.smtp.host", "smtp.qq.com");//发件人的账号

props.put("mail.user", USER);//访问SMTP服务时需要提供的密码

props.put("mail.password", PWD);//构建授权信息，用于进行SMTP进行身份验证

Authenticator authenticator = newAuthenticator() {

@OverrideprotectedPasswordAuthentication getPasswordAuthentication() {//用户名、密码

String userName = props.getProperty("mail.user");

String password= props.getProperty("mail.password");return newPasswordAuthentication(userName, password);

}

};//使用环境属性和授权信息，创建邮件会话

Session mailSession =Session.getInstance(props, authenticator);//创建邮件消息

MimeMessage message = newMimeMessage(mailSession);

BodyPart messageBodyPart= newMimeBodyPart();

Multipart multipart= newMimeMultipart();//设置发件人

InternetAddress form = newInternetAddress(

props.getProperty("mail.user"));

message.setFrom(form);//发送

if (to != null) {

String toList=getMailList(to);

InternetAddress[] iaToList= newInternetAddress().parse(toList);

message.setRecipients(Message.RecipientType.TO, iaToList);//收件人

}//抄送

if (cc != null) {

String toListcc=getMailList(cc);

InternetAddress[] iaToListcc= newInternetAddress().parse(toListcc);

message.setRecipients(Message.RecipientType.CC, iaToListcc);//抄送人

}//密送

if (bcc != null) {

String toListbcc=getMailList(bcc);

InternetAddress[] iaToListbcc= newInternetAddress().parse(toListbcc);

message.setRecipients(Message.RecipientType.BCC, iaToListbcc);//密送人

}

message.setSentDate(new Date()); //发送日期 该日期可以随意写,你可以写上昨天的日期(效果很特别,亲测,有兴趣可以试试),或者抽象出来形成一个参数。

message.setSubject(subject); //主题

message.setText(content); //内容//显示以html格式的文本内容

messageBodyPart.setContent(content,"text/html;charset=utf-8");

multipart.addBodyPart(messageBodyPart);//保存多个附件

if(fileList!=null){

addTach(fileList, multipart);

}

message.setContent(multipart);//发送邮件

Transport.send(message);

}public voidsetTo(String[] to) {this.to =to;

}public voidsetCc(String[] cc) {this.cc =cc;

}public voidsetBcc(String[] bcc) {this.bcc =bcc;

}public voidsetSubject(String subject) {this.subject =subject;

}public voidsetContent(String content) {this.content =content;

}public voidsetFileList(String[] fileList) {this.fileList =fileList;

}privateString getMailList(String[] mailArray) {

StringBuffer toList= newStringBuffer();int length =mailArray.length;if (mailArray != null && length < 2) {

toList.append(mailArray[0]);

}else{for (int i = 0; i < length; i++) {

toList.append(mailArray[i]);if (i != (length - 1)) {

toList.append(",");

}

}

}returntoList.toString();

}//添加多个附件

public void addTach(String fileList[], Multipart multipart) throwsMessagingException, UnsupportedEncodingException {for (int index = 0; index < fileList.length; index++) {

MimeBodyPart mailArchieve= newMimeBodyPart();

FileDataSource fds= newFileDataSource(fileList[index]);

mailArchieve.setDataHandler(newDataHandler(fds));

mailArchieve.setFileName(MimeUtility.encodeText(fds.getName(),"UTF-8","B"));

multipart.addBodyPart(mailArchieve);

}

}

}