Java 发送邮件 demo

需要两个额外的jar包：

JavaMail 1.4.5 jar包下载地址是：http://www.oracle.com/technetwork/java/index-138643.html

JAF 1.1.1 jar包下载地址是：http://www.oracle.com/technetwork/java/javase/downloads/index-135046.html

下载下来后解压，将jar包全部添加到工程里。

MailSenderInfo类，用来记录发送邮件所需的各种信息

package com.rjgc.mail;

import java.util.Properties;

public class MailSenderInfo {
    private String mailServerHost;
    // 发送邮件的服务器的端口
    private String mailServerPort = "25";
    // 发件人邮箱地址
    private String fromAddress;
    // 收件人邮箱地址
    private String toAddress;
    // 登陆邮件发送服务器的用户名
    private String userName;
    // 登陆邮件发送服务器的密码
    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;

    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;
    }
}

MyAuthenticator类，用来验证邮箱的用户名和密码

package com.rjgc.mail;

import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;
// 邮箱用户名和密码认证器
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);
    }
}

SimpleMailSender类，用来发送邮件

package com.rjgc.mail;

import java.util.Date;
import java.util.Properties;

import javax.mail.Address;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.MessagingException;
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;

public class SimpleMailSender {
    public boolean sendTextMail(MailSenderInfo mailInfo) {
        // 判断是否需要身份认证
        MyAuthenticator 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 MyAuthenticator(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());
            mailMessage.setRecipient(Message.RecipientType.TO, to);
            // 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());
            // 设置邮件消息的主要内容
            String mailContent = mailInfo.getContent();
            mailMessage.setText(mailContent);
            // 发送邮件
            Transport.send(mailMessage);
            return true;
        } catch (MessagingException ex) {
            ex.printStackTrace();
        }
        return false;
    }

    public static boolean sendHtmlMail(MailSenderInfo mailInfo) {
        // 判断是否需要身份认证
        MyAuthenticator 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 MyAuthenticator(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);
            // 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);
            // 将MiniMultipart对象设置为邮件内容
            mailMessage.setContent(mainPart);
            // 发送邮件
            Transport.send(mailMessage);
            return true;
        } catch (MessagingException ex) {
            ex.printStackTrace();
        }
        return false;
    }
}

SendMailDemo类，用来测试发送邮件

package com.rjgc.mail;

import java.net.InetAddress;

public class SendMailDemo {
    public static void main(String[] args) {
        // 设置邮件服务器信息
        MailSenderInfo mailInfo = new MailSenderInfo();
        mailInfo.setMailServerHost("smtp.163.com");
        mailInfo.setMailServerPort("25");
        mailInfo.setValidate(true);
        // 邮箱用户名
        mailInfo.setUserName("**********@163.com");
        // 邮箱密码
        mailInfo.setPassword("**********");
        // 发件人邮箱
        mailInfo.setFromAddress("**********@163.com");
        // 收件人邮箱
        mailInfo.setToAddress("***********@163.com");
        String ComputerName="";
        try {
            ComputerName=InetAddress.getLocalHost().getHostName();
        } catch (Exception e) {
            e.printStackTrace();
        }
        // 邮件标题
        mailInfo.setSubject(ComputerName);
        // 邮件内容
        StringBuffer buffer = new StringBuffer();
        buffer.append("JavaMail 1.4.5 jar包下载地址：http://www.oracle.com/technetwork/java/index-138643.html\n");
        buffer.append("JAF 1.1.1 jar包下载地址：http://www.oracle.com/technetwork/java/javase/downloads/index-135046.html");
        mailInfo.setContent(buffer.toString());
        // 发送邮件
        SimpleMailSender sms = new SimpleMailSender();
        // 发送文体格式r /> sms.sendTextMail(mailInfo);
        // 发送html格式
        SimpleMailSender.sendHtmlMail(mailInfo);
    }
}