首先进入自己的QQ邮箱，在设置中修改账户信息

然后来至底部 

点击开启，再用手机发送对应信息到指定号码，然后点击我已发送 

获取授权码 

 

注意提示：

到这里，相信你已经开通了SMTP服务，这样就可以在java code发送邮件了

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接下来的是Spring 中使用邮件服务

首先是配置信息使用的是587端口，刚开始用465端口我纠结了好久()，用不了，你可以尝试，默认的25端口应该也是不适合的

        
     
      
     //或许你可以用465端口，默认的25不适合 
      
      
     //这里的是你通过短信后，获取的授权码 
      
      
       
       
        true
        
       
        25000
        
       
      
     
     
     
      
      
     
     
      
      
    

 

用maven引入的jar包

        
            
     
      org.springframework
      
     
      spring-context-support
      
     
      ${spring.version}
      
     
     
     
      javax.mail
      
     
      mail
      
     
      1.4.7
      
    

 

下面只是一个工具类作简单例子，请勿见怪

package cn.cherish.common;import java.io.BufferedReader;import java.io.File;import java.io.InputStream;import java.io.InputStreamReader; import java.net.URL; import java.net.URLConnection; import java.util.Properties; import javax.mail.MessagingException; import javax.mail.internet.MimeMessage; import org.springframework.core.io.FileSystemResource; import org.springframework.mail.MailException; import org.springframework.mail.SimpleMailMessage; import org.springframework.mail.javamail.JavaMailSenderImpl; import org.springframework.mail.javamail.MimeMessageHelper; /** * 项目名称：springmvc_hibernate * 类名称：MailUtil * 类描述： * 创建人：Cherish * 联系方式：785427346@qq.com * 创建时间：2016年4月22日 下午3:51:48 * @version 1.0 */ public class MailUtil { private static final String HOST = "smtp.qq.com"; private static final String SMTP = "smtp"; private static final String USERNAME = "785427346@qq.com"; private static final String PASSWORD = "xxxxxxxxxx"; private static final int PORT = 587;//587/465 private static final String DEFAULTENCODING = "UTF-8"; private static JavaMailSenderImpl senderImpl = new JavaMailSenderImpl(); private static Properties prop = new Properties(); static{ // 设定mail server senderImpl.setHost(HOST); senderImpl.setProtocol(SMTP); senderImpl.setUsername(USERNAME); senderImpl.setPassword(PASSWORD); senderImpl.setPort(PORT); senderImpl.setDefaultEncoding(DEFAULTENCODING); // 设定properties prop.put("mail.smtp.auth", "true"); prop.put("mail.smtp.timeout", "25000"); //设置调试模式可以在控制台查看发送过程 prop.put("mail.debug", "true"); senderImpl.setJavaMailProperties(prop); } public static void main(String args[]) { // 设置收件人，寄件人 用数组发送多个邮件 // String[] array = new String[] {"88888@qq.com","666666@qq.com","999999999@qq.com",USERNAME}; String[] array = new String[] {USERNAME}; String subject = "Cherish内嵌图片、音乐的邮件"; // StringBuffer sb = new StringBuffer(); // try { // URL url = new URL("http://www.imooc.com/");//http://android-studio.org/ // // URLConnection conn = url.openConnection(); // InputStream is = conn.getInputStream(); // // BufferedReader reader = new BufferedReader(new InputStreamReader(is)); // // String string = null; // while ((string = reader.readLine()) != null) { // sb.append(string); // } // // //System.out.println(sb.toString()); // // } catch (Exception e) { // e.printStackTrace(); // } // // boolean result = htmlMail(array, subject, sb.toString()); String filePath = "E:/javaxmail.png"; String html = ""+ ""+ "
    "+ "
Hello,Nice to meet you!
"+ "并摸了一把你的小奶"+ ""+ ""; boolean result = inlineFileMail(array, subject, html, filePath); if (result) { System.out.println("发送邮件成功。。。。"); } } /** * 发送简单邮件 * @param to 收件人邮箱 * @param subject 主题 * @param content 内容 * @return */ public static boolean singleMail(String to, String subject, String content){ String[] array = new String[] {to}; return singleMail(array, subject, content); } /** * 发送简单文本邮件 * @param to 收件人邮箱数组 * @param subject 主题 * @param content 内容 * @return */ public static boolean singleMail(String[] to, String subject, String content){ boolean result = true; SimpleMailMessage mailMessage = new SimpleMailMessage(); // 设置收件人，寄件人 用数组发送多个邮件 mailMessage.setTo(to); mailMessage.setFrom(USERNAME); mailMessage.setSubject(subject); mailMessage.setText(content); // 发送邮件 try { senderImpl.send(mailMessage); } catch (MailException e) { e.printStackTrace(); result = false; } return result; } /** * 发送html邮件 * @param to 收件人 * @param subject 主题 * @param html html代码 * @return */ public static boolean htmlMail(String[] to, String subject, String html){ boolean result = true; MimeMessage mailMessage = senderImpl.createMimeMessage(); MimeMessageHelper messageHelper = new MimeMessageHelper(mailMessage); try { // 设置收件人，寄件人 用数组发送多个邮件 messageHelper.setTo(to); messageHelper.setFrom(USERNAME); messageHelper.setSubject(subject); // true 表示启动HTML格式的邮件 messageHelper.setText(html, true); // 发送邮件 senderImpl.send(mailMessage); } catch (MessagingException e) { result = false; e.printStackTrace(); } return result; } /** * 发送内嵌图片的邮件 （cid:资源名） * @param to 收件人邮箱 * @param subject 主题 * @param html html代码 * @param imgPath 图片路径 * @return */ public static boolean inlineFileMail(String[] to, String subject, String html, String filePath){ boolean result = true; MimeMessage mailMessage = senderImpl.createMimeMessage(); try { //设置true开启嵌入图片的功能 MimeMessageHelper messageHelper = new MimeMessageHelper(mailMessage,true); // 设置收件人，寄件人 用数组发送多个邮件 messageHelper.setTo(to); messageHelper.setFrom(USERNAME); messageHelper.setSubject(subject); // true 表示启动HTML格式的邮件 messageHelper.setText(html, true); FileSystemResource file = new FileSystemResource(new File(filePath)); messageHelper.addInline(file.getFilename(), file); // 发送邮件 senderImpl.send(mailMessage); } catch (MessagingException e) { result = false; e.printStackTrace(); } return result; } /** * 发送带附件的邮件 * @param to * @param subject * @param html * @param filePath * @return */ public static boolean attachedFileMail(String[] to, String subject, String html, String filePath){ boolean result = true; MimeMessage mailMessage = senderImpl.createMimeMessage(); try { // multipart模式 为true时发送附件 可以设置html格式 MimeMessageHelper messageHelper = new MimeMessageHelper(mailMessage,true,"utf-8"); // 设置收件人，寄件人 用数组发送多个邮件 messageHelper.setTo(to); messageHelper.setFrom(USERNAME); messageHelper.setSubject(subject); // true 表示启动HTML格式的邮件 messageHelper.setText(html, true); FileSystemResource file = new FileSystemResource(new File(filePath)); // 这里的方法调用和插入图片是不同的。 messageHelper.addAttachment(file.getFilename(), file); // 发送邮件 senderImpl.send(mailMessage); } catch (MessagingException e) { result = false; e.printStackTrace(); } return result; }

温馨提示：

这是内嵌图片的方式 javaxmail.png 要和 messageHelper.addInline(file.getFilename(), file); 这里的 file.getFilename() 相一致就可以

---

现在只差一步了，那就是Ctrl + F11，有不当之处敬请提出，共同进步 

**

使用javax.mail发邮件代码

**

package cn.cherish.utils;import java.io.File;import java.io.FileNotFoundException;import java.io.IOException;import java.util.Date; import java.util.Properties; import javax.activation.DataHandler; import javax.activation.DataSource; import javax.activation.FileDataSource; import javax.mail.Authenticator; import javax.mail.BodyPart; import javax.mail.Message; import javax.mail.MessagingException; import javax.mail.Multipart; import javax.mail.PasswordAuthentication; 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.MimeMessage.RecipientType; import javax.mail.internet.MimeMultipart; import javax.mail.internet.MimeUtility; /** * 项目名称：springmvc_hibernate * 类名称：EmailUtil * 类描述：发送邮件工具类 * 创建人：Cherish * 联系方式：785427346@qq.com * 创建时间：2016年4月23日 上午9:48:21 * @version 1.0 */ public class EmailUtil { // properties配置文件地址 //private static final String PROPERTIES_PATH = "standard_data.properties"; private static Session session; private static Properties props = new Properties(); private static final String HOST = "smtp.qq.com"; private static int PORT = 587; private static final String isAUTH = "true"; private static final String FROM = "785427346@qq.com"; private static final String USERNAME = "785427346@qq.com"; private static final String PASSWORD = "xxxxxxxxxxxxxxxx"; private static final String TIMEOUT = "25000"; private static final String DEBUG = "true"; // 初始化session static { props.put("mail.smtp.host", HOST); props.put("mail.smtp.port", PORT); props.put("mail.smtp.auth", isAUTH); props.put("fromer", FROM); props.put("username", USERNAME); props.put("password", PASSWORD); props.put("mail.smtp.timeout", TIMEOUT); props.put("mail.debug", DEBUG); session = Session.getInstance(props, new Authenticator() { @Override protected PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication(USERNAME, PASSWORD); } }); } public static void main(String[] args) { try { String html = ""+ ""+ "
    "+ "
    "+ "
Hello,nice to fuck you!
"+ "并抓了一把你的小鸡鸡"+ ""; //sendEmail("785427346@qq.com", "yeah", html, true); sendFileEmail("785427346@qq.com", "yeah", html, new File("E:/xiaoming.zip")); } catch (Exception e) { e.printStackTrace(); } } /** * * @Title sendEmail * @Description 通过isHtml判断发送的邮件的内容 * @param to 邮件接收者 * @param content 邮件内容 * @param isHtml 是否发送html * @throws MessagingException * @throws IOException * @throws FileNotFoundException * @throws EmailException */ public static void sendEmail(String to, String title, String content, boolean isHtml) throws FileNotFoundException, IOException, MessagingException { String fromer = props.getProperty("fromer"); if (isHtml) { sendHtmlEmail(fromer, to, title, content); } else { sendTextEmail(fromer, to, title, content); } } // 发送纯文字邮件 public static void sendTextEmail(String from, String to, String subject, String content) throws FileNotFoundException, IOException, MessagingException { Message message = new MimeMessage(session); message.setFrom(new InternetAddress(from)); message.setRecipient(RecipientType.TO, new InternetAddress(to)); message.setSubject(subject); message.setText(content); message.setSentDate(new Date()); Transport.send(message); } // 发送有HTML格式邮件 public static void sendHtmlEmail(String from, String to, String subject, String htmlConent) throws FileNotFoundException, IOException, MessagingException { Message message = new MimeMessage(session); message.setFrom(new InternetAddress(from)); message.setRecipient(RecipientType.TO, new InternetAddress(to)); message.setSubject(subject); message.setSentDate(new Date()); Multipart multi = new MimeMultipart(); BodyPart html = new MimeBodyPart(); html.setContent(htmlConent, "text/html; charset=utf-8"); multi.addBodyPart(html); message.setContent(multi); Transport.send(message); } // 发送带附件的邮件 public static void sendFileEmail(String to, String subject, String htmlConent, File attachment) throws FileNotFoundException, IOException, MessagingException { Message message = new MimeMessage(session); String fromer = props.getProperty("fromer"); message.setFrom(new InternetAddress(fromer)); message.setRecipient(RecipientType.TO, new InternetAddress(to)); message.setSubject(subject); message.setSentDate(new Date()); // 向multipart对象中添加邮件的各个部分内容，包括文本内容和附件 Multipart multipart = new MimeMultipart(); // 添加邮件正文 BodyPart contentPart = new MimeBodyPart(); contentPart.setContent(htmlConent, "text/html;charset=UTF-8"); multipart.addBodyPart(contentPart); // 添加附件的内容 if (attachment != null) { BodyPart attachmentBodyPart = new MimeBodyPart(); DataSource source = new FileDataSource(attachment); attachmentBodyPart.setDataHandler(new DataHandler(source)); // 网上流传的解决文件名乱码的方法，其实用MimeUtility.encodeWord就可以很方便的搞定 // 这里很重要，通过下面的Base64编码的转换可以保证你的中文附件标题名在发送时不会变成乱码 // sun.misc.BASE64Encoder enc = new sun.misc.BASE64Encoder(); // messageBodyPart.setFileName("=?GBK?B?" + // enc.encode(attachment.getName().getBytes()) + "?="); // MimeUtility.encodeWord可以避免文件名乱码 attachmentBodyPart.setFileName(MimeUtility.encodeWord(attachment.getName())); multipart.addBodyPart(attachmentBodyPart); } message.setContent(multipart); Transport.send(message); } }