后台管理系统之邮件开发(Java实现)

曾经终败给现在 2022-01-06 09:55 427阅读 0赞

一，功能点

后台管理系统，添加用户时。对注册的新用户邮箱发送初始密码。

![1243169-20190215093827544-1053310020.png][]

二，代码实现

1.Mail实体类

public class Mail {
    
        private Set<String> receivers; // 收件人的邮箱
    
        private String subject; // 主题
    
        private String message; // 信息(支持HTML)
    
        public Mail() {
        }
    
        public Mail(Set<String> receivers, String subject, String message) {
            this.receivers = receivers;
            this.subject = subject;
            this.message = message;
        }
    
        public Set<String> getReceivers() {
            return receivers;
        }
    
        public void setReceivers(Set<String> receivers) {
            this.receivers = receivers;
        }
    
        public String getSubject() {
            return subject;
        }
    
        public void setSubject(String subject) {
            this.subject = subject;
        }
    
        public String getMessage() {
            return message;
        }
    
        public void setMessage(String message) {
            this.message = message;
        }
    
    
    }

2.邮箱工具类

package com.ideal.manage.guest.util;
    
    import com.ideal.manage.guest.bean.mail.Mail;
    import org.apache.commons.lang3.StringUtils;
    import org.apache.commons.mail.EmailException;
    import org.apache.commons.mail.HtmlEmail;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    
    /**
     * Created on 15/11/21.
     * Remark:发送邮件工具类
     */
    
    public class MailUtil {
    
        private static Logger logger = LoggerFactory.getLogger(MailUtil.class);
    
        public static boolean send(Mail mail) {
    
            String from = "visitor_yishang@126.com";//填写自己的邮箱
            int port = 25;
            String host = "smtp.126.com";//这里我用的是smtp协议
            String pass = "qwer1234";//填写自己的邮箱的授权码
            String nickname = "admin";
    
            HtmlEmail email = new HtmlEmail();
            try {
                email.setHostName(host);
                email.setCharset("UTF-8");
                for (String str : mail.getReceivers()) {
                    email.addTo(str);
                }
                email.setFrom(from, nickname);
                email.setSmtpPort(port);
                email.setAuthentication(from, pass);
                email.setSubject(mail.getSubject());
                email.setMsg(mail.getMessage());
                email.send();
                logger.info("{} 发送邮件到 {}", from, StringUtils.join(mail.getReceivers(), ","));
                return true;
            } catch (EmailException e) {
                logger.error(from + "发送邮件到" + StringUtils.join(mail.getReceivers(), ",") + "失败", e);
                return false;
            }
        }
    
    }

3.业务代码：添加用户时，发送邮件

/**
         * 保存用户
         * @param id
         * @param loginName
         * @param password
         * @param name
         * @param sex
         * @param telephone
         * @param mobile
         * @param email
         * @param role
         * @param customer
         * @param jobTitle
         * @param remark
         */
        public void saveUser(String id,String loginName,String password,
                             String name,Long sex,String telephone,
                             String mobile,String email,String role,
                             String customer,String jobTitle,String remark){
            MyShiroRealm.ShiroUser shiroUser = (MyShiroRealm.ShiroUser) SecurityUtils.getSubject().getPrincipal();
            User user = new User();
            if(id != null){
                user = findById(id);
                user.setLastUpdateUser(new User(shiroUser.getId()));
                user.setLastUpdateTime(new Date());
            }else {
                user.setCreateTime(new Date());
                user.setCreateUser(new User(shiroUser.getId()));
                user.setDelFlag(0L);
            }
            user.setLoginName(loginName);
    
            user.setPassword(password);
            //密码加密
            PasswordHelper passwordHelper = new PasswordHelper();
            passwordHelper.encryptPassword(user);
            user.setName(name);
            user.setSex(sex);
            user.setTelephone(telephone);
            user.setMobile(mobile);
            user.setEmail(email);
    
            if(role != null){
                Role r = roleService.findById(role);
                user.setRole(r);
            }
            if(customer != null){
                Customer c = customerService.findById(customer);
                user.setCustomer(c);
            }
            user.setJobTitle(jobTitle);
            user.setRemark(remark);
            userRepository.save(user);
    
            //发送邮件
            String message = "您的账户已经开通, 请妥善保管好您的个人密码：" + password;
            String subject = "用户添加成功通知";
            sendEmailToUser(user, subject, message);
    
        }
    
        /**
         * 发送邮件
         * @param user
         * @param subject
         * @param message
         */
        private void sendEmailToUser(User user, String subject, String message) {
            Mail mail = new Mail();
            mail.setMessage(message);
            mail.setReceivers(Sets.newHashSet(user.getEmail()));
            mail.setSubject(subject);
            MailUtil.send(mail);
        }

4.对了，别忘了在pom添加依赖

<dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-email</artifactId>
                <version>1.4</version>
            </dependency>

三，邮箱配置

登录我的126邮箱后找到设置，如下图

![1243169-20190215095135176-568906499.png][]

把POP3/SMTP/IMAP勾上就可以了，并设置授权码就可以了。

![1243169-20190215095257853-2064065744.png][]

添加用户后，你的邮箱会收到一封邮件

![1243169-20190215095908156-1298478918.png][]

转载于:https://www.cnblogs.com/inspred/p/10381934.html

[1243169-20190215093827544-1053310020.png]: /images/20211227/5570d19d83984c6e9256dbb5af93c0b6.png
[1243169-20190215095135176-568906499.png]: /images/20211227/5ae8cf48f15b4f9bb69a0ec82c1ba59a.png
[1243169-20190215095257853-2064065744.png]: /images/20211227/683f48b1d86b4064a1bdc79e3a29c60e.png
[1243169-20190215095908156-1298478918.png]: /images/20211227/0cabdcd7e03f446a99e5ef4bf802099f.png