最近公司接了宜家的几个产品，需要在原有的抽取服务添加完成后邮寄通知功能。先搞个初级版本，话不多说，上代码：
一，引入依赖包
<dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-email</artifactId> <version>1.5</version> </dependency>二，配置相关信息
email: yijia: ## 开发环境 host: smtp.163.com charset: gbk username: 邮箱@163.com password: EPXXX templateName: yiJiaEmail subject: IKEA related code table update tips receiveMails: 接收1@easipass.com,接收2@easipass.com如果本地测试用自己邮件，需要开下权限。
三，邮件模板
在resources下创建templates文件夹写需要的模板，eg：
<!DOCTYPE html> <html lang="en" xmlns:th="http://www.thymeleaf.org"> <style type="text/css"> body{ margin: 0px; } table.imagetable { font-size:18px; border-width: 1px; border-collapse: collapse; margin: auto; } table.imagetable th { width: 350px; border-width: 1px; padding: 15px; border-style: solid; border-color: #CDC1C5; } table.imagetable td { /*background:#dcddc0;*/ border-width: 1px; padding: 15px; border-style: solid; border-color: #CDC1C5; width: 350px; text-align: center; } .daastitle{ /*display: inline-block;*/ padding: 6px 15px; margin-bottom: 0; font-size: 23px; font-weight: normal; line-height: 1.42857143; text-align: center; white-space: nowrap; vertical-align: middle; background-image: none; border: 1px solid transparent; border-radius: 4px; color: #fff; background-color: #5bc0de; border-color: #46b8da; } </style> <head> <meta charset="UTF-8"/> </head> <body> <div style="width: 700px;margin: auto;margin-top:50px"> <div class="daastitle"> 抽取任务完成</div> <table class="imagetable"> <tr style="background-color: #fff"> <td>任务名称</td> <td>产品编号</td> </tr> <tr style="background-color: #fff"> <td th:text="${taskName}"></td> <td th:text="${productKey}"></td> </tr> </table> </div> </body> </html>四，工具类
package com.easipass.extract.util; import java.util.HashMap; import java.util.Map; import lombok.extern.slf4j.Slf4j; import org.apache.commons.mail.EmailException; import org.apache.commons.mail.HtmlEmail; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Configuration; import org.thymeleaf.TemplateEngine; import org.thymeleaf.context.Context; /** * @program: BDP_SRVC_DAAS_EXTRACT @Package: com.easipass.extract.util @ClassName: EmailTool * @author: qqzhang * @create: 2020-05-27 15:13 * @description: @UpdateUser: qqzhang @UpdateRemark: @UpdateDate: 2020-05-27 15:13 @Version: 1.0 */ @Configuration @Slf4j public class EmailTool { private static TemplateEngine templateEngine; @Autowired public EmailTool(TemplateEngine templateEngine) { EmailTool.templateEngine = templateEngine; } // 1 字符串 2 html public static Map<String, Object> sendEmail( Map<String, Object> datamap, Map<String, Object> emailParam, String type) throws EmailException { Map<String, Object> resultMap = new HashMap(); int successSum = 0; int errSum = 0; StringBuffer errEmails = new StringBuffer(); String templateName = (String) emailParam.get("templateName"); String[] receiveMails = (String[]) emailParam.get("receiveMails"); String subject = (String) emailParam.get("subject"); String context = null; if ("1".equals(type)) { context = (String) datamap.get("context"); } else if ("2".equals(type)) { context = getContext(datamap, templateName); } else { log.error("##### 不支持此类型邮件 #####"); } for (String email : receiveMails) { try { sendEmail(email, context, subject, emailParam); log.info("发送邮件 至: " + email + " 成功"); successSum++; } catch (Exception e) { log.info("发送邮件 至: " + email + " 失败,异常信息：" + e.getMessage(), e); errSum++; errEmails.append(email + ","); } } resultMap.put("successSum", successSum); resultMap.put("errSum", errSum); if (errSum > 0) { resultMap.put("errEmails", errEmails.deleteCharAt(errEmails.length() - 1).toString()); } return resultMap; } private static void sendEmail( String mailto, String context, String subject, Map<String, Object> emailParam) throws EmailException { String host = (String) emailParam.get("host"); String charset = (String) emailParam.get("charset"); String username = (String) emailParam.get("username"); String password = (String) emailParam.get("password"); HtmlEmail email = new HtmlEmail(); email.setHostName(host); email.setCharset(charset); email.setAuthentication(username, password); email.setFrom(username, ""); email.setSubject(subject); email.setHtmlMsg(context); email.addTo(mailto); String send = email.send(); log.info("send = " + send); } // 获取html模板 private static String getContext(Map<String, Object> datamap, String templateName) { Context context = new Context(); context.setVariables(datamap); return templateEngine.process(templateName, context); } }五，使用
private Map<String, Object> sendEmail(TaskInfoDTO taskInfo) throws Exception { Map<String, Object> datamap = new HashMap<>(); String context = null; // ... // context 发送内容 // ... datamap.put("context", context); Map<String, Object> emailParam = new HashMap<>(); emailParam.put("host", host); emailParam.put("charset", charset); emailParam.put("username", username); emailParam.put("password", password); emailParam.put("templateName", templateName); emailParam.put("subject", subject); emailParam.put("receiveMails", receiveMails); return EmailTool.sendEmail(datamap, emailParam, "1"); }六，效果图
邮件模板写的很简单，如需其他样式自行修改模板。
