工具类-发送邮件（通过JavaMail发送）

不念不忘少年蓝@ 2022-01-07 04:11 290阅读 0赞

前段时间在工作中用到了邮件发送监控的报警信息，今天在这个记录一下JavaMail的邮件工具类。

下边为用到的JavaMail的jar包的pom依赖。这里用的是JavaMail的1.4.6的版本。

<dependency>
    　　<groupId>javax.mail</groupId>
    　　<artifactId>mail</artifactId>
    　　<version>1.4.6</version>
    </dependency>

这里是工具类中的用到的邮件的一些参数对象的实体类。

package com.juihai.entity;
    
    import java.util.Arrays;
    
    public class EmailTO {
        private String title;//邮件主题
        private String content;//邮件内容
        private String sender;//发件人账号
        private String password;//发件人密码
        private String host;//发件邮箱服务器
        private String[] toAdress;//收件人地址
        public String getTitle() {
            return title;
        }
        public void setTitle(String title) {
            this.title = title;
        }
        public String getContent() {
            return content;
        }
        public void setContent(String content) {
            this.content = content;
        }
        public String getSender() {
            return sender;
        }
        public void setSender(String sender) {
            this.sender = sender;
        }
        public String getPassword() {
            return password;
        }
        public void setPassword(String password) {
            this.password = password;
        }
        public String getHost() {
            return host;
        }
        public void setHost(String host) {
            this.host = host;
        }
        public String[] getToAdress() {
            return toAdress;
        }
        public void setToAdress(String[] toAdress) {
            this.toAdress = toAdress;
        }
        @Override
        public String toString() {
            return "EmailTO [title=" + title + ", content=" + content + ", sender="
                    + sender + ", password=" + password + ", host=" + host
                    + ", toAdress=" + Arrays.toString(toAdress) + "]";
        }
        
        
    }

这里是就是发送Email的工具类。具体说明件代码中的注释。

import java.io.UnsupportedEncodingException;
    import java.security.GeneralSecurityException;
    import java.util.Properties;
    
    import javax.mail.Authenticator;
    import javax.mail.Message;
    import javax.mail.MessagingException;
    import javax.mail.PasswordAuthentication;
    import javax.mail.Session;
    import javax.mail.Transport;
    import javax.mail.internet.InternetAddress;
    import javax.mail.internet.MimeMessage;
    
    import org.apache.log4j.Logger;
    
    import com.juihai.entity.EmailTO;
    
    public class SendEmailUtils {
        /** 日志输出 */
        private static Logger log = Logger.getLogger(SendEmailUtils.class);
    
        public static boolean send(EmailTO to) throws GeneralSecurityException{
    
            final String user = to.getSender();
            final String password = to.getPassword();
            log.info("SendEmailUtils >>>> Start Send Mail");
            Properties properties = System.getProperties();// 获取系统属性
            properties.setProperty("mail.smtp.host", to.getHost());// 设置邮件服务器 "smtp.163.com",这是发件人的邮箱服务器
            properties.put("mail.smtp.auth", "true");
            String senderNick = null;
    　　　　　
    　　　　　//部分邮箱服务器需要开启SSL验证才可以发送邮件，需要的话，开启注释即可　
            /*MailSSLSocketFactory sf = new MailSSLSocketFactory();// SSL验证 begin
            sf.setTrustAllHosts(true);
            properties.put("mail.smtp.ssl.enable", "true");
            properties.put("mail.smtp.ssl.socketFactory", sf);// SSL验证 end*/
            
            Session session = Session.getDefaultInstance(properties,
                    new Authenticator() {
                        public PasswordAuthentication getPasswordAuthentication() {
                            return new PasswordAuthentication(user, password); // 发件人邮件用户名、密码
                        }
                    });
            try {
                MimeMessage message = new MimeMessage(session);// 创建默认的 MimeMessage对象
                senderNick = javax.mail.internet.MimeUtility.encodeText("Juihai");//设置发件人昵称 
                message.setFrom(new InternetAddress(senderNick+"<"+user+">"));
                
                //message.addRecipient(Message.RecipientType.TO,new InternetAddress());//创建单个收件人
                String[] tos = to.getToAdress();//创建多个收件人
                if (tos != null && tos.length != 0) {
                    InternetAddress[] toAddress = new InternetAddress[tos.length];
                    for (int i = 0; i < tos.length; i++) {
                        toAddress[i] = new InternetAddress(tos[i]);
                    }
                    message.setRecipients(Message.RecipientType.TO, toAddress);
                }
                message.setSubject(to.getTitle());//设置邮件主题
                //message.setText(content);//发送纯文本内容
                message.setContent(to.getContent(), "text/html;charset=utf-8");//发送html邮件内容
                
                Transport.send(message);//发送Email
                log.info(" SendEmailUtils邮件发送成功");
                return true;
            }catch (MessagingException mex) {
                mex.printStackTrace();
                log.info(" >>>>SendEmailUtils邮件发送失败"+mex);
            } catch (UnsupportedEncodingException e) {
                log.info(" >>>>SendEmailUtils邮件发送失败-设置发件人昵称error"+e);
                e.printStackTrace();
            }
            return false;
        }
    }

转载于:https://www.cnblogs.com/juihai/p/8970181.html