java发送邮件

约定不等于承诺〃 2021-12-12 14:09 249阅读 0赞

最近客户要求做邮件发送，做完后抽时间整理发个文章。

不多说，直接上代码

package com.hnac.hzinfo.mail.util;
    
    import org.apache.commons.lang.ArrayUtils;
    import org.apache.commons.lang.StringUtils;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.mail.javamail.JavaMailSender;
    import org.springframework.mail.javamail.JavaMailSenderImpl;
    import org.springframework.mail.javamail.MimeMessageHelper;
    import org.springframework.stereotype.Component;
    import org.springframework.stereotype.Controller;
    import org.springframework.stereotype.Service;
    
    import javax.mail.internet.MimeMessage;
    import javax.mail.internet.MimeUtility;
    import java.io.File;
    import java.util.Properties;
    
    
    /**
     * 邮件发送
     */
    @Service
    public class MailUtil {
    	private static Logger logger = LoggerFactory.getLogger(MailUtil.class);
    
    	//SMTP发送邮件的服务器的IP
    	@Value("${mail.host}")
    	private String host;
    
    	//SMTP发送邮件的服务器的端口,qq-465，126-25
    	@Value("${mail.port}")
    	private String port;
    
    	//登陆SMTP邮件发送服务器的用户名
    	@Value("${mail.username}")
    	private String username;
    
    	//登陆SMTP邮件发送服务器的密码
    	@Value("${mail.password}")
    	//qq-qsggmfdnwtilbjhi
    	private String password;
    
    	//邮件发送账户
    	@Value("${mail.sendFrom}")
    	private String sendFrom;
    	
    	@Value("${mail.sendNick}")
    	private String sendNick;
    
    	/**
    	 * 发送邮件 (完整版)(结合Spring)
    	 * 
    	 * //@param javaMailSender: 发送Bean //@param sendFrom : 发送人邮箱 //@param
    	 * sendNick : 发送人昵称
    	 * 
    	 * @param toAddress
    	 *            : 收件人邮箱
    	 * @param mailSubject
    	 *            : 邮件主题
    	 * @param mailBody
    	 *            : 邮件正文
    	 * @param mailBodyIsHtml:
    	 *            邮件正文格式,true:HTML格式;false:文本格式
    	 * @param attachments
    	 *            : 附件
    	 */
    	public boolean sendMailSpring(String toAddress, String mailSubject, String mailBody, boolean mailBodyIsHtml,
    			File[] attachments) {
    		JavaMailSender javaMailSender = null;// ResourceBundle.getInstance().getJavaMailSender();
    		try {
    			MimeMessage mimeMessage = javaMailSender.createMimeMessage();
    			MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, ArrayUtils.isNotEmpty(attachments), "UTF-8"); // 设置utf-8或GBK编码，否则邮件会有乱码;multipart,true表示文件上传
    
    			helper.setFrom(sendFrom, sendNick);
    			helper.setTo(toAddress);
    
    			// 设置收件人抄送的名片和地址(相当于群发了)
    			// helper.setCc(InternetAddress.parse(MimeUtility.encodeText("邮箱001")
    			// + " <@163.com>," + MimeUtility.encodeText("邮箱002") + "
    			// <@foxmail.com>"));
    
    			helper.setSubject(mailSubject);
    			helper.setText(mailBody, mailBodyIsHtml);
    
    			// 添加附件
    			if (ArrayUtils.isNotEmpty(attachments)) {
    				for (File file : attachments) {
    					helper.addAttachment(MimeUtility.encodeText(file.getName()), file);
    				}
    			}
    
    			// 群发
    			// MimeMessage[] mailMessages = { mimeMessage };
    
    			javaMailSender.send(mimeMessage);
    			return true;
    		} catch (Exception e) {
    			logger.info("{}", e);
    		}
    		return false;
    	}
    
    	/**
    	 * 发送邮件 (完整版) (纯JavaMail)
    	 * 
    	 * @param toAddress
    	 *            : 收件人邮箱
    	 * @param mailSubject
    	 *            : 邮件主题
    	 * @param mailBody
    	 *            : 邮件正文
    	 * @param mailBodyIsHtml:
    	 *            邮件正文格式,true:HTML格式;false:文本格式 //@param inLineFile : 内嵌文件
    	 * @param attachments
    	 *            : 附件
    	 */
    	public boolean sendMail(String toAddress, String mailSubject, String mailBody, boolean mailBodyIsHtml,
    			File[] attachments) {
    		try {
    			// 创建邮件发送类 JavaMailSender (用于发送多元化邮件，包括附件，图片，html 等 )
    			JavaMailSenderImpl mailSender = new JavaMailSenderImpl();
    			mailSender.setHost(host); // 设置邮件服务主机
    			mailSender.setUsername(username); // 发送者邮箱的用户名
    			mailSender.setPassword(password); // 发送者邮箱的密码
    
    			// 配置文件，用于实例化java.mail.session
    			Properties pro = System.getProperties();
    			pro.put("mail.smtp.auth", "true"); // 登录SMTP服务器,需要获得授权
    												// (qq、网易126邮箱测试通过可以获得授权)
    			pro.put("mail.smtp.socketFactory.port", port);
    			pro.put("mail.smtp.socketFactory.fallback", "false");
    			mailSender.setJavaMailProperties(pro);
    
    			// 创建多元化邮件 (创建 mimeMessage 帮助类，用于封装信息至 mimeMessage)
    			MimeMessage mimeMessage = mailSender.createMimeMessage();
    			MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, ArrayUtils.isNotEmpty(attachments), "UTF-8");
    
    			helper.setFrom(sendFrom, sendNick);
    			String[] toAddressArr = toAddress.split(";");
    			if(toAddressArr.length>=1){
    				helper.setTo(toAddressArr[0]);
    				for (int i=1;i<toAddressArr.length;i++) {
    					helper.addTo(toAddressArr[i]);
    				}
    			}else{
    				logger.error("未设置邮件接收人！");
    				return false;
    			}
    
    			helper.setSubject(mailSubject);
    			//邮件正文不能为空
    			helper.setText(mailBody, mailBodyIsHtml);
    
    			// 添加内嵌文件，第1个参数为cid标识这个文件,第2个参数为资源
    			// helper.addInline(MimeUtility.encodeText(inLineFile.getName()),
    			// inLineFile);
    
    			// 添加附件
    			if (ArrayUtils.isNotEmpty(attachments)) {
    				for (File file : attachments) {
    					helper.addAttachment(MimeUtility.encodeText(file.getName()), file);
    				}
    			}
    
    			mailSender.send(mimeMessage);
    			return true;
    		} catch (Exception e) {
    			e.printStackTrace();
    			logger.error("", e);
    		}
    		return false;
    	}
    
    	static int total = 0;
    
    	public static void main(String[] args) {
    		MailUtil mailUtil = new MailUtil();
    		File[] attachments = new File[1];
    		File file = new File("C:\\Users\\zhongyj\\Desktop\\micro.txt");
    		attachments[0]= file;
    		String mailBody =
    				"<html><head><meta http-equiv=" + "Content-Type" + " content=" +
    						"text/html; charset=gb2312" +
    						"></head><body><h1>新书快递通知</h1>你的新书快递申请已推送新书，请到<a href=''>空间" +
    						"</a>中查看</body></html>";
    		mailUtil.sendMail("277674748@qq.com;wyjzhong@sina.cn", "测试邮件", mailBody, true, attachments);
    
    		/*ExecutorService exec = Executors.newCachedThreadPool();
    		for (int i = 0; i< 20; i++) {
    			exec.execute(new Thread(new Runnable() {
    
    				@Override
    				public void run() {
    					while (total < 1) {
    						String mailBody =
    								"<html><head><meta http-equiv=" + "Content-Type" + " content=" +
    										"text/html; charset=gb2312" +
    										"></head><body><h1>新书快递通知</h1>你的新书快递申请已推送新书，请到<a href=''>空间" +
    										"</a>中查看</body></html>";
    
    						sendMail("277674748@qq.com", "测试邮件", mailBody, false, null);
    						System.out.println(total);
    						total++;
    					}
    				}
    			}));
    		}*/
    	}
    
    }