matrix.boot.common.utils.EmailUtil Maven / Gradle / Ivy
package matrix.boot.common.utils;
import com.sun.net.ssl.internal.ssl.Provider;
import matrix.boot.common.exception.ServiceException;
import org.apache.commons.collections4.CollectionUtils;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.URLDataSource;
import javax.mail.*;
import javax.mail.internet.*;
import java.net.URL;
import java.security.Security;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Properties;
/**
* 邮件工具
* @author wangcheng
*/
public class EmailUtil {
static {
Security.addProvider(new Provider());
}
/**
* 用户名
*/
private String username;
/**
* 密码
*/
private String password;
/**
* 服务器地址
*/
private String server;
/**
* 是否ssl连接
*/
private boolean isSsl = false;
/**
* 会话
*/
private Session session;
/**
* 通道
*/
private Transport transport = null;
private EmailUtil() {}
private EmailUtil(String username, String password, String server, Boolean isSsl) {
AssertUtil.notNullTip(username, "username");
AssertUtil.notNullTip(password, "password");
AssertUtil.notNullTip(server, "server");
this.username = username;
this.password = password;
this.server = server;
if (isSsl != null) {
this.isSsl = isSsl;
}
//端口
String port = server.split(":").length > 1 ? server.split(":")[1] : null;
Properties props = System.getProperties();
props.put("mail.smtp.auth", "true");
props.setProperty("mail.transport.protocol", "smtp");
if (!this.isSsl) {
//非安全连接
props.put("mail.smtp.port", port != null ? port : "25");
this.session = Session.getInstance(props, (Authenticator) null);
} else {
//安全连接
props.setProperty("mail.host", server.split(":")[0]);
props.setProperty("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.ssl.enable", "true");
props.setProperty("mail.smtp.port", port != null ? port : "465");
props.setProperty("mail.smtp.socketFactory.port", port != null ? port : "465");
this.session = Session.getInstance(props, new Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
}
this.session.setDebug(false);
}
/**
* 实例化
* @param username 用户名
* @param password 密码
* @param server 服务器地址
* @param isSsl 是否安全连接
* @return 实例
*/
public static EmailUtil getInstance(String username, String password, String server, Boolean isSsl) {
return new EmailUtil(username, password, server, isSsl);
}
/**
* 单人发送
* @param receiver 接收人
* @param title 标题
* @param content 内容
*/
public void sendOne(String receiver, String title, String content) {
this.sendOne(receiver, title, content, null);
}
/**
* 单人发送
* @param receiver 接收人
* @param title 标题
* @param content 内容
* @param attachments 附件
*/
public void sendOne(String receiver, String title, String content, List attachments) {
AssertUtil.notNullTip(receiver, "receiver");
List receivers = new ArrayList<>();
receivers.add(receiver);
this.send(receivers, null, null, title, content, attachments);
}
/**
* 多人发送
* @param receivers 接收人
* @param title 标题
* @param content 内容
*/
public void sendMany(List receivers, String title, String content) {
this.sendMany(receivers, null, null, title, content, null);
}
/**
* 多人发送
* @param receivers 接收人
* @param ccReceivers 抄送人
* @param bccReceivers 密送人
* @param title 标题
* @param content 内容
*/
public void sendMany(List receivers, List ccReceivers, List bccReceivers, String title, String content) {
this.send(receivers, ccReceivers, bccReceivers, title, content, null);
}
/**
* 多人发送
* @param receivers 接收人
* @param title 标题
* @param content 内容
* @param attachments 附件
*/
public void sendMany(List receivers, String title, String content, List attachments) {
this.sendMany(receivers, null, null, title, content, attachments);
}
/**
* 多人发送
* @param receivers 接收人
* @param ccReceivers 抄送人
* @param bccReceivers 密送人
* @param title 标题
* @param content 内容
* @param attachments 附件
*/
public void sendMany(List receivers, List ccReceivers, List bccReceivers, String title, String content, List attachments) {
this.send(receivers, ccReceivers, bccReceivers, title, content, attachments);
}
/**
* 发送邮件
* @param receivers 接收人
* @param ccReceivers 抄送人
* @param bccReceivers 密送人
* @param title 邮件标题
* @param content 邮件内容
* @param attachments 附件信息
*/
private void send(List receivers, List ccReceivers, List bccReceivers, String title, String content, List attachments) {
AssertUtil.state(!CollectionUtils.isEmpty(receivers), "receivers don't be null");
try {
MimeMessage message = new MimeMessage(this.session);
message.setFrom(new InternetAddress(this.username));
message.setSentDate(DateUtil.convertDate(DateUtil.getNow()));
//接收人
Address[] address = new Address[receivers.size()];
for (int i = 0; i < receivers.size(); ++i) {
address[i] = new InternetAddress(receivers.get(i));
}
message.addRecipients(Message.RecipientType.TO, address);
//抄送人
if (!CollectionUtils.isEmpty(ccReceivers)) {
Address[] ccAddress = new Address[ccReceivers.size()];
for (int i = 0; i < ccReceivers.size(); ++i) {
ccAddress[i] = new InternetAddress(ccReceivers.get(i));
}
message.addRecipients(Message.RecipientType.CC, ccAddress);
}
//密送人
if (!CollectionUtils.isEmpty(bccReceivers)) {
Address[] bccAddress = new Address[bccReceivers.size()];
for (int i = 0; i < bccReceivers.size(); ++i) {
bccAddress[i] = new InternetAddress(bccReceivers.get(i));
}
message.addRecipients(Message.RecipientType.BCC, bccAddress);
}
//邮件主题
message.setSubject(MimeUtility.encodeText(title, "gb2312", "B"));
Multipart multipart = new MimeMultipart();
//邮件正文
BodyPart contentPart = new MimeBodyPart();
contentPart.setContent(content, "text/html;charset=UTF-8");
multipart.addBodyPart(contentPart);
//邮件附件
if (attachments != null && !attachments.isEmpty()) {
for (URL url : attachments) {
BodyPart attachmentBodyPart = new MimeBodyPart();
DataSource source = new URLDataSource(url);
attachmentBodyPart.setDataHandler(new DataHandler(source));
attachmentBodyPart.setFileName(MimeUtility.encodeWord(url.getFile()));
multipart.addBodyPart(attachmentBodyPart);
}
}
message.setContent(multipart);
message.saveChanges();
if (!isSsl) {
transport = this.session.getTransport();
transport.connect(this.server, this.username, this.password);
transport.sendMessage(message, message.getAllRecipients());
} else {
Transport.send(message, message.getAllRecipients());
}
} catch (Exception e) {
throw new ServiceException(e);
} finally {
if (transport != null) {
try {
transport.close();
} catch (MessagingException ignored) {
}
}
}
}
}
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