Spring框架JavaMailSender发送邮件工具类详解

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    /* test.setInitData("smtp.163.com","1234@163.com","1234");    Map<String,String> map = new HashMap<String, String>();    map.put("test12.xls", "D://tomcat8//apache-tomcat-8.0.29//test12.xls");    map.put("wsdl.rar", "D://wsdl.rar");    test.attachedSend("706548532@qq.com","Hello Attachment","This is a mail with attachment",map);    */    //测试发送富文本（html文件）   /* test.setInitData("smtp.163.com","1234@163.com","1234");    String text = "<body><p style='color:red;'>Hello Html Email</p><img src='cid:file'/></body>";    Map<String,String> map = new HashMap<String, String>();    map.put("file", "E://1f7827.jpg");    test.richContentSend("706548532@qq.com","邮件标题",text,map);*/    //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);  }}