郵件發送javamail
阿新 • • 發佈：2019-03-07
fin stringbu service dma gin app nbsp ssi ext
寫在前面：
最近要將dms系統原始發郵件的功能(調用的webservice)改變成使用smtp服務來發送郵件(使用javamail來發送)，這裏簡單記錄下，方便日後有用到，直接拿來用即可。
首先導入需要用到的jar包：activation.jar mail.jar
涉及到的相關類：
直接上代碼了：
TestMail.java
package dms.newmail; import java.util.Properties; import javax.mail.Session; import javax.mail.Transport;import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.Action; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; public class TestMail {static String to = "[email protected]"; static String cc = ""; public static void main(String[] args){ String subject = "【DMS郵件測試】"; String content = "Dear all,\n\n" + " DMS郵件功能測試！\n"; MailService mailService = new MailServiceImpl();try { mailService.sendMail(to, cc,subject, content); } catch (Exception e) { e.printStackTrace(); } } }
MailService.java
package dms.newmail; public interface MailService { /** * 發送郵件 * * @param to 接收人 * @param subject 郵件主題 * @param content 郵件內容 */ void sendMail(String to, String subject, String content) throws Exception; void sendNoThreadMail(String to, String subject, String content); /** * 發送郵件 * @param to 接收人 * @param cc 抄送人 * @param subject 郵件主題 * @param content 郵件內容 * @throws BusinessException */ void sendMail(String to, String cc,String subject, String content) throws Exception; }
MailServieImpl.java
package dms.newmail; import org.apache.log4j.Logger; import org.springframework.stereotype.Service; import javax.annotation.Resource; import javax.mail.MessagingException; import javax.mail.Session; import javax.mail.internet.MimeMessage; public class MailServiceImpl implements MailService { private static Logger logger = Logger.getLogger(MailServiceImpl.class); public void sendMail(String to, String subject, String content) { MailThread mailThread = new MailThread(to, subject, content); System.out.println("to:" + to + "\nsubject:" + subject + "\n\ncontent:" + content); mailThread.setName("發送" + to + "郵件"); mailThread.start(); } public void sendNoThreadMail(String to, String subject, String content) { System.out.println("to:" + to + "\n,subject:" + subject + "\n\n,content:" + content); MailUtil mailUtil = new MailUtil(); Session session = mailUtil.getSession(); MimeMessage message = null; try { message = mailUtil.createSimpleMessage(session, to, subject, content); } catch (Exception e) { logger.error("創建郵件失敗"); } try { mailUtil.sendMessage(session, message); } catch (MessagingException e) { logger.error("連接不上SMTP服務器"); } System.out.println("發送郵件成功"); } /** * to:發送給(多個郵箱以;號隔開) * cc:抄送(多個郵箱以;號隔開) * subject:主題 * content:內容 */ public void sendMail(String to, String cc, String subject, String content) throws Exception { MailThread mailThread = new MailThread(to, cc,subject, content); // System.out.println(to); mailThread.setName("發送" + to + "郵件"+"抄送給"+to); mailThread.start(); } }
MailThread.java
package dms.newmail; import org.apache.log4j.Logger; import javax.mail.MessagingException; import javax.mail.Session; import javax.mail.internet.MimeMessage; public class MailThread extends Thread { private static Logger logger = Logger.getLogger(MailThread.class); private String to; private String subject; private String content; private String cc; public MailThread() { } public MailThread(String to, String subject, String content) { this.to = to; this.subject = subject; this.content = content; } public MailThread(String to, String cc, String subject, String content) { this.to = to; this.cc = cc; this.subject = subject; this.content = content; } public void run() { MailUtil mailUtil = new MailUtil(); Session session = mailUtil.getSession(); MimeMessage message = null; try { message = mailUtil.createSimpleMessage(session, to, cc, subject, content); } catch (Exception e) { logger.error("創建郵件失敗"); } try { mailUtil.sendMessage(session, message); } catch (MessagingException e) { logger.error("連接不上SMTP服務器"); } System.out.println("發送郵件成功"); } }
MailUtil.java
package dms.newmail; import javax.mail.Message; import javax.mail.MessagingException; import javax.mail.Session; import javax.mail.Transport; import javax.mail.internet.InternetAddress; import javax.mail.internet.MimeMessage; import java.util.*; public class MailUtil { //smtp服務器 public static final String SMTP_HOST = "10.134.28.95"; public static final String USER_NAME = "[email protected]"; public static final String PASS_WORD = ""; /** * 獲取郵件會話 * * @return */ public Session getSession() { Properties prop = new Properties(); prop.setProperty("mail.host", SMTP_HOST); prop.setProperty("mail.transport.protocol", "smtp"); prop.setProperty("mail.smtp.auth", "false"); //使用JavaMail發送郵件的5個步驟 //1、創建session Session session = Session.getInstance(prop); //開啟Session的debug模式，這樣就可以查看到程序發送Email的運行狀態 session.setDebug(true); return session; } /** * 創建簡單文本 * * @param session * @param to * @param subject * @param content * @return */ public MimeMessage createSimpleMessage(Session session, String to, String subject, String content) throws Exception { MimeMessage message = null; message = getMessage(session, to, subject); message.setText(content, "UTF-8"); return message; } public MimeMessage createSimpleMessage(Session session, String to, String cc, String subject, String content) throws Exception { MimeMessage message = null; if (cc == null || "".equals(cc)) { message = getMessage(session, to, subject); } else { message = getMessage(session, to, cc, subject); } message.setText(content, "UTF-8"); return message; } /** * 獲取郵件對象 * * @param session 郵件會話 * @param to 收件人 * @param subject 郵件主題 * @return * @throws Exception */ private MimeMessage getMessage(Session session, String to, String subject) throws Exception { //創建郵件對象 MimeMessage message = new MimeMessage(session); //指明郵件的發件人 message.setFrom(new InternetAddress(USER_NAME)); String[] addresses = to.split(";"); Set addSet = new HashSet(); for(int i=0;i<addresses.length;i++){ if (!"".equals(addresses[i].trim())) addSet.add(addresses[i].trim()); } InternetAddress[] internetAddresses = new InternetAddress[addSet.size()]; Iterator iterable = addSet.iterator(); for (int i = 0; i < addSet.size(); i++) { internetAddresses[i] = new InternetAddress((String) iterable.next()); } //指明郵件的收件人，現在發件人和收件人是一樣的，那就是自己給自己發 message.setRecipients(Message.RecipientType.TO, internetAddresses); //郵件的標題 message.setSubject(subject, "UTF-8"); message.setSentDate(new Date(System.currentTimeMillis())); //返回創建好的郵件對象 return message; } /** * @param session * @param to 收件人 * @param cc 抄送人 * @param subject 郵件主題 * @return * @throws Exception */ private MimeMessage getMessage(Session session, String to, String cc, String subject) throws Exception { //創建郵件對象 MimeMessage message = new MimeMessage(session); //指明郵件的發件人 message.setFrom(new InternetAddress(USER_NAME)); String[] addresses = to.split(";"); String[] addresses2 = cc.split(";"); Set addSet = new HashSet(); Set addSet2 = new HashSet(); for(int i=0;i<addresses.length;i++){ if (!"".equals(addresses[i].trim())) addSet.add(addresses[i].trim()); } for(int i=0;i<addresses2.length;i++){ if (!"".equals(addresses2[i].trim())) addSet2.add(addresses2[i].trim()); } InternetAddress[] internetAddresses = new InternetAddress[addSet.size()]; Iterator iterable = addSet.iterator(); for (int i = 0; i < addSet.size(); i++) { internetAddresses[i] = new InternetAddress((String) iterable.next()); } InternetAddress[] internetAddresses2 = new InternetAddress[addSet2.size()]; Iterator iterable2 = addSet2.iterator(); for (int i = 0; i < addSet2.size(); i++) { internetAddresses2[i] = new InternetAddress((String) iterable2.next()); } //指明郵件的收件人，現在發件人和收件人是一樣的，那就是自己給自己發 message.setRecipients(Message.RecipientType.TO, internetAddresses); message.setRecipients(Message.RecipientType.CC, internetAddresses2); //郵件的標題 message.setSubject(subject, "UTF-8"); message.setSentDate(new Date(System.currentTimeMillis())); //返回創建好的郵件對象 return message; } /** * 發送郵件 * * @param session 郵件會話 * @param message 郵件 * @throws MessagingException */ public void sendMessage(Session session, Message message) throws MessagingException { //2、通過session得到transport對象 Transport ts = session.getTransport(); //3、使用郵箱的用戶名和密碼連上郵件服務器，發送郵件時，發件人需要提交郵箱的用戶名和密碼給smtp服務器，用戶名和密碼都通過驗證之後才能夠正常發送郵件給收件人。 ts.connect(SMTP_HOST,USER_NAME,PASS_WORD); // ts.connect(); //5、發送郵件 if (null != message) ts.sendMessage(message, message.getAllRecipients()); ts.close(); } }
LogUtil.java:
package dms.newmail; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.io.PrintWriter; import java.io.StringWriter; public class LogUtil { private static Logger logger = LoggerFactory.getLogger(LogUtil.class); public static String getTrace(Throwable throwable) { StringWriter stringWriter = new StringWriter(); PrintWriter printWriter = new PrintWriter(stringWriter); throwable.printStackTrace(printWriter); StringBuffer stringBuffer = stringWriter.getBuffer(); return stringBuffer.toString(); } public static void main(String[] args) { String strTrace=getTrace(new Throwable()); System.out.println(strTrace); new Throwable().printStackTrace(); } }
好啦，代碼搬運完成啦~~~
這一塊主要還是斌哥在spas寫好的，這邊dms用到我只是拿現成的啦~~
參考鏈接：https://www.cnblogs.com/xdp-gacl/p/4216311.html-----JavaWeb學習總結(五十二)——使用JavaMail創建郵件和發送郵件
郵件發送javamail