1、完整的郵件發送代碼
1.1、依賴包
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<dependency> <groupId>org.springframework</groupId> <artifactId>spring-support</artifactId> <version>2.0.8</version> <exclusions> <exclusion> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> </exclusion> </exclusions> </dependency><dependency> <groupId>javax.mail</groupId> <artifactId>mail</artifactId> <version>1.4.7</version></dependency> |
主要用到了兩個jar包：mail-1.4.7.jar、spring-support-2.0.8.jar.
1.2、郵件發送類
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package com.autonavi.utils;import java.util.Properties;import javax.mail.MessagingException;import javax.mail.internet.MimeMessage;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.mail.javamail.JavaMailSenderImpl;import org.springframework.mail.javamail.MimeMessageHelper;import com.autonavi.constants.Constant;public class EmailUtils { private static final Logger logger = LoggerFactory.getLogger(EmailUtils.class); public static boolean sendHtmlMail(String subject,String content,String receiver){ boolean result = true; try{ JavaMailSenderImpl senderImpl = new JavaMailSenderImpl(); // 設定mail server senderImpl.setHost("smtp.abcdefg.com"); senderImpl.setPort(345); senderImpl.setUsername(Constant.email); // 根據自己的情況,設置發件郵箱地址 senderImpl.setPassword(Constant.email_password); // 根據自己的情況, 設置password senderImpl.setDefaultEncoding("UTF-8"); Properties prop = new Properties(); prop.put("mail.smtp.auth", "true"); // 將這個參數設為true，讓服務器進行認證,認證用戶名和密碼是否正確 prop.put("mail.smtp.ssl.enable", "true"); prop.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory"); senderImpl.setJavaMailProperties(prop); // 建立郵件消息,發送簡單郵件和html郵件的區別 MimeMessage mailMessage = senderImpl.createMimeMessage(); MimeMessageHelper messageHelper = new MimeMessageHelper(mailMessage); // 設置收件人，寄件人 messageHelper.setTo(receiver); messageHelper.setFrom(Constant.email); messageHelper.setSubject(subject); // true 表示啟動HTML格式的郵件 messageHelper.setText(content,true); // 發送郵件 senderImpl.send(mailMessage); } catch (MessagingException e) { // TODO Auto-generated catch block result = false; logger.info("EmailUtils.method [sendHtmlMail]: email send result-" + result +",error message-" + e); } return result; }} |
以上設置中，有幾個點需要注意：
第一點：
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senderImpl.setUsername(Constant.email); senderImpl.setPassword(Constant.email_password); |
上面兩個方法是用來設置發件的郵箱，郵箱地址要寫全，如[email protected]。
如果設置得不對，會提示權限錯誤。
第二點：
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senderImpl.setDefaultEncoding(“UTF-8”); |
這個一定記得設置，否則會郵件發出去會是下面這種結果。
第三點：
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Properties prop = new Properties(); prop.put(“mail.smtp.auth”, “true”); prop.put(“mail.smtp.ssl.enable”, “true”); prop.put(“mail.smtp.socketFactory.class”, “javax.NET.ssl.SSLSocketFactory”); senderImpl.setJavaMailProperties(prop); |
一定要記得配置Properties，且上述配置缺一不可，如果沒配置，大家會看見各種奇怪的異常。
1.3、郵件正文處理，使用HTML模版
下面的getHtmlStr()方法用來將待發送的內容處理為HTML模版。
- public static String getHtmlStr(JSONArray data,String receiver,int day){
- JSONObject json = data.getJSONObject(0);
- String title = json.getString("task_tittle");
- // NO.1、獲取收件人名
- String receiverName = getEmailStr(receiver);
- // NO.2、獲取郵件表格
- String emailTable = getTableStr(data);
- // NO.3、獲取郵件時間
- String emailDate = Date2Str.getCurrentDate2();
- String html = "<html><head></head><body>"
- + "<p>" +receiverName+" 您好,</p>"
- + "<p> 生產日程-<font size="4" color="#FF0000" face="Verdana" >"+title+"</font>中的下列任務將于<font size="4" color="#FF0000" face="Verdana" >"+day+"</font>天后開始啟動，請關注:</p>"
- + "<div style="padding-left:20px">"
- + "<table border="1px" cellspacing="0px" style="border-collapse:collapse">"
- + "<tr>"
- + "<td>任務名</td><td>啟動時間</td><td>結束時間</td>"
- + "</tr>"
- + emailTable
- + "</table></div>"
- + "<p> 每項任務的詳細情況,請登陸 "
- + "<a href="http://100.78.205.244:8080"><font size="4" color="#FF0000">項目綜合管理&評價系統</font></a> 查看!</p>"
- + "<p>項目綜合管理&評價系統</br>"+emailDate+"</p>"
- + "</body></html>";
- return html;
- }
應用改模版后，發出的郵件顯示效果如下：
至于具體業務場景，你想定義什么樣的模版都行。
2、常見異常
503異常
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2016-04-13-16-48 [scheduler-3] [org.springframework.scheduling.support.TaskUtils$LoggingErrorHandler] [ERROR] - Unexpected error occurred in scheduled task. org.springframework.mail.MailSendException; nested exception details (1) are:Failed message 1:javax.mail.SendFailedException: Invalid Addresses; nested exception is: com.sun.mail.smtp.SMTPAddressFailedException: 503 RCPT account isn't a local account at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1862) at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1118) at org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:388) at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:332) at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:328) at com.autonavi.utils.EmailUtils.sendHtmlMail(EmailUtils.java:50) at com.autonavi.method.gaokuai.IssueForward.action(IssueForward.java:81) at com.autonavi.task.ScheduledTasks.executeAutoAssignTask(ScheduledTasks.java:121) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:65) at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54) at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:81) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745)Caused by: com.sun.mail.smtp.SMTPAddressFailedException: 503 RCPT account isn't a local account at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1715) ... 21 more |
如果運行過程中報上述異常，請再次核對收發郵件的郵箱賬號是否有效。
3、總結
SpringBoot郵件發送主要是利用已封裝好的兩個jar包：mail-1.4.7.jar、spring-support-2.0.8.jar，使得配置郵件發送不再復雜。
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持服務器之家。
原文鏈接：http://blog.csdn.net/loongshawn/article/details/51036490
