springboot发送邮件,内容使用thymeleaf模板引擎排版-编程知识

springboot发送邮件,内容使用thymeleaf模板引擎排版

- - 1、导入jar包
  - 2、yml设置
  - 3、收件人以及收件信息设置
  - 4、发邮件service
  - 5、模版页面
  - 6、controller

1、导入jar包

<!--发送邮件--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-mail</artifactId></dependency>
<!--使用thymeleaf 形式--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-thymeleaf</artifactId></dependency>

2、yml设置

发件邮箱信息设置：


spring:mail:host: smtp.xx.cnport: 465username: 你的邮箱password: 你的密码
#    default-encoding: UTF-8protocol: smtpproperties: # 配置以SSL的方式发送, 这个需要使用这种方式并且端口是465mail:smtp:auth: truessl:enable: truesocketFactory:class: com.sun.mail.util.MailSSLSocketFactoryfallback: falsedebug: true

3、收件人以及收件信息设置

@Getter
@Setter
public class AcceptMailParam {//标题private String title;//接收人邮件地址private String receiveEmail[];//抄送人邮件地址private String chaoSongPersonEmail[];//附件，value 文件的绝对地址/动态模板数据private Map<String, Object> attachment;//thymeleaf模版引擎页面对象数据：邮件排版内存List<OperateDataResultInfoView> pageViewList;
}页面对象数据展示
@Setter
@Getter
public class OperateDataResultInfoView {private Long id;/*** 存储当前年月,eg:202301*/private Integer curMonth;/*** 库名*/private String dbName;/*** 表名*/private String tableName;/*** 计划生成数据量*/private Long planGenDataCnt;/*** 实际生成数据量*/private Long actualGenDataCnt;/*** 备注*/private String remark;private String gmtCreate;private String gmtModified;/* ** 剩余待生成数据量*/private Long remainToGenCnt;/* ** 生成数据成功率(实际生成数量/计划生成数量),单位%*/private BigDecimal genDataSuccessRate;/**模拟生成数据*/public OperateDataResultInfoView() {this.id = ThreadLocalRandom.current().nextLong(100L, 999L);this.curMonth = DateUtil.getPreMonth();String[] dbAndTableName = ("dbName" + id + ".tableName" + id).split("\\.");this.dbName = dbAndTableName[0];this.tableName = dbAndTableName[1];this.planGenDataCnt = id + ThreadLocalRandom.current().nextLong(10L, 99L);this.actualGenDataCnt = id;this.remark = null;this.gmtCreate = DateUtil.getNowStr();this.gmtModified = DateUtil.getNowStr();this.remainToGenCnt = (planGenDataCnt - actualGenDataCnt) >= 0 ? (planGenDataCnt - actualGenDataCnt) : 0;BigDecimal rate = new BigDecimal(actualGenDataCnt).divide(new BigDecimal(planGenDataCnt), 4, BigDecimal.ROUND_HALF_UP);this.genDataSuccessRate = rate.compareTo(new BigDecimal("1")) >= 0 ? new BigDecimal("100") : rate.multiply(new BigDecimal("100")).setScale(2, BigDecimal.ROUND_HALF_UP);}
}

4、发邮件service

public interface SendMailService {/*** 邮件内容排版调试*/AcceptMailParam getMailContentAndSendMail(Integer curMonth);
}/*** 获取指定月份的邮件【邮件内容：生成数据的结果集 信息】* 次月1日8点 发送*/@Overridepublic AcceptMailParam getMailContentAndSendMail(Integer curMonth) {AcceptMailParam acceptMailParam = new AcceptMailParam();List<OperateDataResultInfoView> pageViewList = new ArrayList<>();for (int i = 0; i < 10; i++) {pageViewList.add(new OperateDataResultInfoView());}Collections.sort(pageViewList, Comparator.comparing(OperateDataResultInfoView::getId).reversed());acceptMailParam.setPageViewList(pageViewList);String[] emails = {"xxx1@qq.com"};String[] chaoSongPerson = {"xx2@qq.com"};//收件人，支持多人acceptMailParam.setReceiveEmail(emails);//抄送人，支持多人acceptMailParam.setChaoSongPersonEmail(chaoSongPerson);acceptMailParam.setTitle("统计业务表生成数据结果");//添加附件Map<String, Object> map = new HashMap<>();//key为邮件附件文件名称，路径改为你的服务器路径即可，可添加不同类型文件map.put("1-test1.zip", "/Users/gina/xx/data/test2.zip");map.put("2-test2.xlsx", "/Users/gina/xx/data/test1.xlsx");acceptMailParam.setAttachment(map);//调试邮件内容排版时，此处可注释掉。//this.sendTemplateMail(acceptMailParam,"/mail/list");return acceptMailParam;}

5、模版页面

在resources下，在路径templates/mail/下添加文件list.html

<!DOCTYPE html><html xmlns:th="http://www.thymeleaf.org"><style>tr.odd td {background-color: #f0faaa;}td.number {text-align: right;}table {width: 100%;border: 1px solid #000;border-collapse: collapse;}table > tbody > tr > td, table > thead > tr > th {padding: 2px 10px;border-left: 1px dotted #000000;vertical-align: top;line-height: 20px;}table > tbody > tr, table > thead > tr {border-bottom: 1px solid #000000;}table th {background-color: #99cc33;}table > tbody > tr > td > a, table > tbody > tr > td > a:hover {text-decoration: none;font-weight: bold;background-color: #352726;padding: 2px 10px;color: #f0faaa;margin-left: 10px;text-transform: uppercase;border: 0px;}</style><head><title>统计业务表生成数据结果</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /></head><body><h1>统计业务表生成数据结果</h1><table><tr><th>生成月份</th><th>库名</th><th>表名</th><th>计划生成(条)</th><th>实际生成(条)</th><th>成功率%</th><th>未生成(条)</th><th>创建时间</th><th>更新时间</th><th>备注</th></tr><tr th:each="o : ${pageViewList}" th:class="${o.id % 2 == 0}? 'odd'" ><td th:text="${o.curMonth}"   ></td><td th:text="${o.dbName}" ></td><td th:text="${o.tableName}" ></td><td th:text="${o.planGenDataCnt}" ></td><td th:text="${o.actualGenDataCnt}"></td><td th:text="${o.genDataSuccessRate}"></td><td th:text="${o.remainToGenCnt}"></td><td th:text="${o.gmtCreate}"></td><td th:text="${o.gmtModified}"></td><td th:text="${o.remark}"></td></tr></table></body>
</html>

6、controller

@Controller
@Slf4j
public class SendMailController {/*** 调试生成的页面样式，不发邮件* 数据处理结果集view*/@Resourceprivate SendMailService sendMailService;/** 点此可直接访问* http://localhost:8081/sendMail?curMonth=202311*/@RequestMapping("sendMail")public String sendMail(Model model, @RequestParam(name = "curMonth") Integer curMonth) {try {AcceptMailParam acceptMailParam = sendMailService.getMailContentAndSendMail(curMonth);model.addAttribute("title", acceptMailParam.getTitle());model.addAttribute("pageViewList", acceptMailParam.getPageViewList());} catch (Exception e) {log.error("sendMail fail ,msg={}", e.getMessage());}return "mail/list";}
}