本文实例为大家分享了Spring框架JavaMailSender发送邮件工具类，供大家参考，具体内容如下

需要用到的jar包：

下面是发送工具类代码：

package com.test.email;import org.springframework.core.io.FileSystemResource;import org.springframework.mail.SimpleMailMessage;import org.springframework.mail.javamail.JavaMailSenderImpl;import org.springframework.mail.javamail.MimeMessageHelper;import javax.activation.DataHandler;import javax.activation.FileDataSource;import javax.mail.BodyPart;import javax.mail.Message;import javax.mail.MessagingException;import javax.mail.Multipart;import javax.mail.internet.InternetAddress;import javax.mail.internet.MimeBodyPart;import javax.mail.internet.MimeMessage;import javax.mail.internet.MimeMultipart;import javax.mail.internet.MimeUtility;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import java.util.Properties;/** * @author tlimited * @create 2017-08-17 11:38 **/public class SendMailUtils { // Spring的邮件工具类，实现了MailSender和JavaMailSender接口 private JavaMailSenderImpl mailSender; /** * 初始化邮件发送数据 * @param host 服务器 * @param username 发送人 * @param passwd 发送人密码 */ public void setInitData(String host,String username,String passwd){ //创建邮件发送服务器 mailSender = new JavaMailSenderImpl(); mailSender.setHost(host); // mailSender.setPort(465); mailSender.setUsername(username); mailSender.setPassword(passwd); //加认证机制 Properties javaMailProperties = new Properties(); javaMailProperties.put("mail.smtp.auth", true); javaMailProperties.put("mail.smtp.starttls.enable", true); javaMailProperties.put("mail.smtp.timeout", 5000); mailSender.setJavaMailProperties(javaMailProperties); System.out.println("初始化邮件发送信息完成"); } /** * 发送普通文本 * @param email 对方邮箱地址 * @param subject 主题 * @param text 邮件内容 */ public void simpleMailSend(String email,String subject,String text) { //创建邮件内容 SimpleMailMessage message=new SimpleMailMessage(); message.setFrom(mailSender.getUsername()); message.setTo(email); message.setSubject(subject); message.setText(text); //发送邮件 mailSender.send(message); System.out.println("发送成功"); } /** * 发送附件,支持多附件 * //使用JavaMail的MimeMessage，支付更加复杂的邮件格式和内容 //MimeMessages为复杂邮件模板，支持文本、附件、html、图片等。 * @param email 对方邮箱 * @param subject 主题 * @param text 内容 * @param paths 附件路径，和文件名 * @throws MessagingException */ public void attachedSend(String email,String subject,String text,Map<String,String> paths) throws MessagingException { MimeMessage message = mailSender.createMimeMessage(); //创建MimeMessageHelper对象，处理MimeMessage的辅助类 MimeMessageHelper helper = new MimeMessageHelper(message, true); //使用辅助类MimeMessage设定参数 helper.setFrom(mailSender.getUsername()); helper.setTo(email); helper.setSubject(subject); helper.setText(text); if (paths!=null){ paths.forEach((k,v)->{ //加载文件资源，作为附件 FileSystemResource file = new FileSystemResource(v); try { //添加附件 helper.addAttachment(k, file); } catch (Exception e) { e.printStackTrace(); } }); } //发送邮件 mailSender.send(message); System.out.println("发送成功"); } /** * 发送html文件，支持多图片 * @param email 对方邮箱 * @param subject 主题 * @param text 内容 * @param paths 富文本中添加用到的路径，一般是图片，或者css,js文件 * @throws MessagingException */ public void richContentSend(String email,String subject,String text,Map<String,String> paths) throws MessagingException { MimeMessage message = mailSender.createMimeMessage(); MimeMessageHelper helper = new MimeMessageHelper(message, true); helper.setFrom(mailSender.getUsername()); helper.setTo(email); helper.setSubject(subject); //第二个参数true，表示text的内容为html，然后注意<img/>标签，src='cid:file'，'cid'是contentId的缩写，'file'是一个标记， //需要在后面的代码中调用MimeMessageHelper的addInline方法替代成文件 helper.setText(text,true); //文件地址相对应src目录 // ClassPathResource file = new ClassPathResource("logo.png"); if (paths!=null){ paths.forEach((k,v)->{ //文件地址对应系统目录 FileSystemResource file = new FileSystemResource(v); try { helper.addInline(k, file); } catch (Exception e) { e.printStackTrace(); } }); } mailSender.send(message); System.out.println("发送成功"); } /** * 群发多人，且多附件 * @param mailto 多人邮件地址 * @param subject 主题 * @param text 内容 * @param filePath 文件路径 * @throws Exception */ public void sendBatchMailWithFile(String[] emails, String subject, String text, String[] filePath) throws Exception { MimeMessage mimeMessage = mailSender.createMimeMessage(); MimeMessageHelper messageHelper = new MimeMessageHelper(mimeMessage, true, "UTF-8"); messageHelper.setFrom(new InternetAddress(MimeUtility.encodeText(mailSender.getUsername()))); messageHelper.setSubject(subject); if (filePath != null) { BodyPart mdp = new MimeBodyPart();// 新建一个存放信件内容的BodyPart对象 mdp.setContent(text, "text/html;charset=UTF-8");// 给BodyPart对象设置内容和格式/编码方式 Multipart mm = new MimeMultipart();// 新建一个MimeMultipart对象用来存放BodyPart对象 mm.addBodyPart(mdp);// 将BodyPart加入到MimeMultipart对象中(可以加入多个BodyPart) // 把mm作为消息对象的内容 MimeBodyPart filePart; FileDataSource filedatasource; // 逐个加入附件 for (int j = 0; j < filePath.length; j++) { filePart = new MimeBodyPart(); filedatasource = new FileDataSource(filePath[j]); filePart.setDataHandler(new DataHandler(filedatasource)); try { filePart.setFileName(MimeUtility.encodeText(filedatasource.getName())); } catch (Exception e) { e.printStackTrace(); } mm.addBodyPart(filePart); } mimeMessage.setContent(mm); } else { messageHelper.setText(text, true); } List<InternetAddress> list = new ArrayList<InternetAddress>();// 不能使用string类型的类型，这样只能发送一个收件人 for (int i = 0; i < emails.length; i++) { list.add(new InternetAddress(emails[i])); } InternetAddress[] address = list.toArray(new InternetAddress[list.size()]); mimeMessage.setRecipients(Message.RecipientType.TO, address); mimeMessage = messageHelper.getMimeMessage(); mailSender.send(mimeMessage); System.out.println("发送成功"); } public static void main(String[] args) throws Exception { SendMailUtils test = new SendMailUtils(); //测试发送普通文本 // test.setInitData("smtp.qq.com","706548532@qq.com","123456"); test.setInitData("smtp.163.com","1234@163.com","1234"); test.simpleMailSend("1326624701@qq.com","测试","测试能不能发邮件！！！"); //测试发送附件 //测试发送富文本（html文件） //测试群发多人多附件 test.setInitData("smtp.163.com","1234@163.com","1234"); String [] address = {"706548532@qq.com","1326624701@qq.com"}; String [] filePath = {"D:\\tomcat8\\apache-tomcat-8.0.29\\test12.xls", "D:\\wsdl.rar"}; test.sendBatchMailWithFile(address, "群发多文件", "实时", filePath); }}

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