Java实现邮件推送功能

八卦阵 · 2024-5-14 21:44:38

java 实现邮件推送
Java实现邮件推送功能

一、引入依赖

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

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二、邮件来源用户信息

private static Logger log = Log.getLogger(); private static ThreadPoolExecutor threadPool; private static String emailServer; private static String userName; private static String password; private static String emailEncoding; private static String emailFrom; private static String sysEmailFromName; private static String encoding; private static void initMail(Email mail) throws EmailException { mail.setHostName(emailServer); mail.setAuthentication(userName, password); mail.setCharset(emailEncoding); mail.setFrom(emailFrom, sysEmailFromName); }

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三、线程池异步

static { threadPool = new ThreadPoolExecutor(5, 10, 3L, TimeUnit.SECONDS, new ArrayBlockingQueue(50), new ThreadPoolExecutor.DiscardPolicy()); //邮箱服务器地址 emailServer = "smtp.163.com"; //用户名 userName = "****"; //用户密码 password = "****"; //编码格式 emailEncoding = "GBK"; //邮件来源 emailFrom = "*****.com.cn"; //邮件来源用户名称 sysEmailFromName = "****"; //编码格式 encoding = "UTF-8"; }

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四、异步发送

private static void sendMail(Email mail) { threadPool.execute(new Runnable() { @Override public void run() { try { mail.send(); } catch (EmailException var2) { log.error("[邮件抄送失败]-", var2); } } }); }

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五完备发送

import org.apache.commons.lang.StringUtils; import org.apache.commons.mail.*; import org.slf4j.Logger; import javax.mail.internet.MimeUtility; import java.io.File; import java.io.UnsupportedEncodingException; import java.util.Arrays; import java.util.List; import java.util.concurrent.ArrayBlockingQueue; import java.util.concurrent.ThreadPoolExecutor; import java.util.concurrent.TimeUnit; /** * 邮件发送工具 */ public class MailUtil { private static Logger log = Log.getLogger(); private static ThreadPoolExecutor threadPool; private static String emailServer; private static String userName; private static String password; private static String emailEncoding; private static String emailFrom; private static String sysEmailFromName; private static String encoding; private static void initMail(Email mail) throws EmailException { mail.setHostName(emailServer); mail.setAuthentication(userName, password); mail.setCharset(emailEncoding); mail.setFrom(emailFrom, sysEmailFromName); } static { threadPool = new ThreadPoolExecutor(5, 10, 3L, TimeUnit.SECONDS, new ArrayBlockingQueue(50), new ThreadPoolExecutor.DiscardPolicy()); //邮箱服务器地址 emailServer = "mailha.sinosafe.local"; //用户名 userName = "****"; //用户密码 password = "****"; //编码格式 emailEncoding = "GBK"; //邮件来源 emailFrom = "*****.com.cn"; //邮件来源用户名称 sysEmailFromName = "****"; //编码格式 encoding = "UTF-8"; } /** * 异步发送邮件 */ private static void sendMail(Email mail) { threadPool.execute(new Runnable() { @Override public void run() { try { mail.send(); } catch (EmailException var2) { log.error("[邮件抄送失败]-", var2); } } }); } /** * 抄送郵件 */ public static void bccHtmlEmail(String subject, String html, List<String> users) throws Exception { HtmlEmail email = new HtmlEmail(); initMail(email); email.setSubject(subject); for (String r : users){ email.addBcc(r); } email.setHtmlMsg(html); email.setTextMsg("Your email client does not support HTML messages"); sendMail(email); } /** * 单附件邮件 */ public static void sendEmailWithFile(String subject, String html, List<String> receivers, File file) throws UnsupportedEncodingException { //附件 EmailAttachment att1 = new EmailAttachment(); att1.setPath(file.getPath()); att1.setDisposition(EmailAttachment.ATTACHMENT); att1.setDescription("attachemnt description gril 中文"); att1.setName(MimeUtility.encodeText(file.getName())); MultiPartEmail email = new MultiPartEmail(); email.setHostName(emailServer); email.setAuthentication(userName, password); email.setCharset(emailEncoding); email.setSubject(subject); try { email.setMsg(html); for (String user : receivers) { email.addTo(user); } email.setFrom(emailFrom, sysEmailFromName); email.attach(att1); email.send(); } catch (EmailException e1) { e1.printStackTrace(); } } public static void sendEmailMultifile(String subject, String html, List<String> receivers, List<File> files){ HtmlEmail email = new HtmlEmail(); email.setHostName(emailServer); email.setAuthentication(userName, password); email.setCharset(emailEncoding); email.setSubject(subject); try { for (String user : receivers) { email.addTo(user); } email.setFrom(emailFrom, sysEmailFromName); email.setHtmlMsg(html); //附件 for(File f : files){ EmailAttachment att1 = new EmailAttachment(); att1.setPath(f.getPath()); att1.setDisposition(EmailAttachment.ATTACHMENT); att1.setDescription("attachemnt description gril 中文"); //附件描述 //防止附件名乱码 att1.setName(MimeUtility.encodeText(f.getName())); email.attach(att1); } email.send(); }catch (EmailException | UnsupportedEncodingException e1) { e1.printStackTrace(); } } /** * 抄送郵件 */ public static void ccHtmlEmail(String subject, String html, String receiver, String cc) throws Exception { ccHtmlEmail(subject, html, Arrays.asList(receiver.split(",")), cc, null); } /** * 抄送郵件带附件 */ public static void ccHtmlEmail(String subject, String html, String receiver, String cc, File file) throws Exception { ccHtmlEmail(subject, html, Arrays.asList(receiver.split(",")), cc, file); } }

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五、总结
Java实现邮件发送，可以异步使用线程池批量发送多人，减小服务器的压力，可以发送单页面（可以是html语言写的页面），也可以单附件大概多附件发送邮件。

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Java实现邮件推送功能

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