JAVA 邮件发送
邮件发送
1.写一个 MailSendProper 类封装需要的属性
import java.util.Properties;
public class MailSendProper {
private String Host ; //发送邮件服务器的ip
private String Port ; //发送邮件服务器的端口号
private String SendAddress ; //邮件发送者的地址
private String ReceiveAddress ; //邮件接受者的地址
private String username ; //登录发送邮箱的用户名
private String password ; //登录发送邮箱的密码
private boolean isvalidate = true ; //是否需要身份验证
private String subject ; //邮件标题
private String content ; //邮件内容
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 getHost() {
return Host;
}
public void setHost(String host) {
Host = host;
}
public String getPort() {
return Port;
}
public void setPort(String port) {
Port = port;
}
public String getSendAddress() {
return SendAddress;
}
public void setSendAddress(String sendAddress) {
SendAddress = sendAddress;
}
public String getReceiveAddress() {
return ReceiveAddress;
}
public void setReceiveAddress(String receiveAddress) {
ReceiveAddress = receiveAddress;
}
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 isIsvalidate() {
return isvalidate;
}
public void setIsvalidate(boolean isvalidate) {
this.isvalidate = isvalidate;
}
public Properties getProperties(){
Properties properties = new Properties() ;
properties.put("mail.smtp.host", this.Host) ;
properties.put("mail.smtp.port", this.Port) ;
properties.put("mail.smtp.auth", isvalidate?"true":"false") ;
return properties ;
}
}
2、写一个 EmailMessage 封装 发送信息
public class EmailMessage {
private String title ;
private String context ;
private String toEmail ;
public EmailMessage() {
super();
}
public EmailMessage(String title, String context, String toEmail) {
super();
this.title = title;
this.context = context;
this.toEmail = toEmail;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getContext() {
return context;
}
public void setContext(String context) {
this.context = context;
}
public String getToEmail() {
return toEmail;
}
public void setToEmail(String toEmail) {
this.toEmail = toEmail;
}
}
3、写一个 MailAttorney 邮箱密码验证器 类
import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;
public class MailAttorney extends Authenticator {
private String username ;
private String password ;
public MailAttorney(String username,String password) {
this.username = username ;
this.password = password ;
}
//覆盖父类方法，获取密码认证器
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username,password) ;
}
}
4 、 写一个 MailSend 邮件工具类
import java.util.Date;
import javax.mail.Address;
import javax.mail.Message;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import com.VTBBS.entity.EmailMessage;
public class MailSend {
public static boolean mailTest(MailSendProper mailsender){
MailAttorney attorney = null ;
if(mailsender.isIsvalidate()){//判断是否需要身份认证
attorney = new MailAttorney(mailsender.getUsername(),mailsender.getPassword()) ;
}
//根据邮箱会话属性和密码验证器构造一个发送邮箱的seesion
Session session = Session.getInstance(mailsender.getProperties(),attorney) ;
//根据session创建一个邮件消息
Message mailMessage = new MimeMessage(session) ;
try {
//创建邮件发送者的地址
Address from = new InternetAddress(mailsender.getSendAddress()) ;
//设置邮箱消息的发送者
mailMessage.setFrom(from);
//创建邮件接收这的地址，并设置到邮件消息中
Address to = new InternetAddress(mailsender.getReceiveAddress()) ;
mailMessage.setRecipient(Message.RecipientType.TO, to);
mailMessage.setSubject(mailsender.getSubject()); //设置邮件标题
mailMessage.setSentDate(new Date()); //设置发送邮件时间
mailMessage.setText(mailsender.getContent()); //设置邮件内容
Transport.send(mailMessage);
return true ;
} catch (Exception e) {
e.printStackTrace();
return false ;
}
}
public static boolean sendEmail(EmailMessage message){
MailSendProper mail = new MailSendProper() ;
mail.setHost("smtp.126.com"); //smtp简单的邮件传输协议，默认端口号是25，
mail.setPort("25");
mail.setIsvalidate(true); //需呀身份验证
mail.setUsername(""); //设置登录用户名
mail.setPassword(""); //设置发送者的密码
mail.setSendAddress(""); //设置发送这的地址 发送者地址和登录用户名是同一个
mail.setReceiveAddress(message.getToEmail()); //设置接收者的地址
mail.setSubject(message.getTitle()); //设置邮箱标题
mail.setContent(message.getContext()); //设置邮箱的内容
return mailTest(mail) ;
}
}
注意：使用的邮箱必须开启POP3/SMTP服务 才能发送成功，
不同的邮箱，邮箱的传输协议不一样如
QQ邮箱：SMTP传输协议是 smtp.qq.com 端口 25
POP3传输协议是 pop3.qq.com 端口 110
5、使用方法测试
public static void main(String[] args) {
EmailMessage message = new EmailMessage() ;
String code = String.valueOf(Math.random()).substring(3, 9) ; //生成验证码
message.setTitle("邮箱验证"); //邮件标题
message.setContext("尊敬的用户你好，你的验证码为"+code+"。"); //邮件内容
message.setToEmail("940202884@qq.com"); //要发送给谁
System.out.println(MailSend.sendEmail(message)?"发送成功":"发送失败") ;
}
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