【JAVA】java实现邮件发送功能

1、第一个文件 MailSenderInfo.java

/**
* 发送邮件需要使用的基本信息
*/
import java.util.Properties;
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;
    // 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 = 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 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 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;
    }
}

2、第二个文件 MyAuthenticator.java

 

import javax.mail.*;

public class MyAuthenticator extends Authenticator{
    String userName=null;
    String password=null;

    public MyAuthenticator(){
    }
    public MyAuthenticator(String username, String password) {
        this.userName = username;
        this.password = password;
    }
    protected PasswordAuthentication getPasswordAuthentication(){
        return new PasswordAuthentication(userName, password);
    }
}

3、第三个文件 SimpleMailSender.java

import java.util.Date;
import java.util.Properties;
import javax.mail.Address;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;

/**
* 简单邮件（不带附件的邮件）发送器
*/
public class SimpleMailSender {
/**
  * 以文本格式发送邮件
  * @param mailInfo 待发送的邮件的信息
  */
    public void sendTextMail(MailSenderInfo mailInfo) throws Exception{
     MyAuthenticator authenticator = null;
     Properties pro = mailInfo.getProperties();
     if (mailInfo.isValidate()) {
        authenticator = new MyAuthenticator(mailInfo.getUserName(), mailInfo.getPassword());
     }
     Session sendMailSession = Session.getDefaultInstance(pro,authenticator);
     Message mailMessage = new MimeMessage(sendMailSession);
     Address from = new InternetAddress(mailInfo.getFromAddress());
     mailMessage.setFrom(from);
     Address to = new InternetAddress(mailInfo.getToAddress());
     mailMessage.setRecipient(Message.RecipientType.TO,to);
     mailMessage.setSubject(mailInfo.getSubject());
     mailMessage.setSentDate(new Date());
     String mailContent = mailInfo.getContent();
     mailMessage.setText(mailContent);
     Transport.send(mailMessage);
    }

    /**
     * 以HTML格式发送邮件
     * @param mailInfo 待发送的邮件信息
     */
    public static void sendHtmlMail(MailSenderInfo mailInfo) throws Exception {
     MyAuthenticator authenticator = null;
     Properties pro = mailInfo.getProperties();
     if (mailInfo.isValidate()) {
        authenticator = new MyAuthenticator(mailInfo.getUserName(), mailInfo.getPassword());
     }
     Session sendMailSession = Session.getDefaultInstance(pro,authenticator);
     Message mailMessage = new MimeMessage(sendMailSession);
     Address from = new InternetAddress(mailInfo.getFromAddress());
     mailMessage.setFrom(from);
     Address to = new InternetAddress(mailInfo.getToAddress());
     mailMessage.setRecipient(Message.RecipientType.TO,to);
     mailMessage.setSubject(mailInfo.getSubject());
     mailMessage.setSentDate(new Date());
     Multipart mainPart = new MimeMultipart();
     BodyPart html = new MimeBodyPart();
     html.setContent(mailInfo.getContent(), "text/html; charset=utf-8");
     mainPart.addBodyPart(html);
     mailMessage.setContent(mainPart);
     Transport.send(mailMessage);
     }
}

4、测试Main Test.java

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class Test {

    /**
     * 日志输出对象
     */
    private static final Log log = LogFactory.getLog(Test.class);

    /**
     * 测试Main方法
     * @param args
     */
    public static void main(String [] args){
        try {
            sendEmail("[e-mail]","[e-mail]","邮件标题","邮件内容");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * 邮件发送工具方法
     * @param fromAddress
     * @param toAddress
     * @param content
     * @throws Exception
     */
    public static void sendEmail(String fromAddress, String toAddress,String title ,String content) throws Exception{
        log.info("执行邮件发送（发送地址："+fromAddress+ " 接收地址：" + toAddress +"）");
        log.debug("发送邮件标题：" + title + " 邮件内容：" + content);
        SimpleMailSender sms = new SimpleMailSender();
        MailSenderInfo mailInfo = new MailSenderInfo();
        mailInfo.setMailServerHost("smtp.domain.com"); //邮件服务器地址

        mailInfo.setMailServerPort("25"); //邮件服务器端口

        mailInfo.setValidate(true); //是否进行用户名密码验证

     mailInfo.setUserName("username"); //用户名

     mailInfo.setPassword("passwd"); //密码

     mailInfo.setFromAddress(fromAddress); //发送地址

     mailInfo.setToAddress(toAddress); //接收地址

     mailInfo.setSubject(title);
     mailInfo.setContent(content);
        sms.sendHtmlMail(mailInfo);
    }
}