Java Mail and Spring Mail

项目用到发送邮件的功能，自己写了个发送类，以gmail为例。

MailSender.java（邮件发送类）

package com.alu.epma.mail;import java.io.IOException;import java.util.ArrayList;import java.util.Date;import java.util.List;import java.util.Properties;import javax.mail.Message;import javax.mail.MessagingException;import javax.mail.PasswordAuthentication;import javax.mail.Session;import javax.mail.Transport;import javax.mail.internet.AddressException;import javax.mail.internet.InternetAddress;import javax.mail.internet.MimeMessage;import org.apache.commons.lang.StringUtils;import org.apache.log4j.Logger;public class MailSender {protected static final Logger logger = Logger.getLogger(MailSender.class);private static final String MAIL_CONFIG_PROPERTY = "mail_config.properties";private static final String MAIL_SEND_PROPERTY = "mail_send.properties";private static final String MAIL_HOSTNAME = "mail.hostname";private static final String MAIL_USERNAME = "mail.username";private static final String MAIL_PASSWORD = "mail.password";/** * properties of mail smtp */private static Properties configProps = new Properties();/** * others information */private static Properties sendProps = new Properties();private static String userName;private static String password;private static String mailHost;/** * initialize smtp properties and main account properties */static {try {// load smtp from mail_config.propertiesconfigProps.load(Thread.currentThread().getContextClassLoader().getResourceAsStream(MAIL_CONFIG_PROPERTY));// load from mail_send.propertiessendProps.load(Thread.currentThread().getContextClassLoader().getResourceAsStream(MAIL_SEND_PROPERTY));userName = sendProps.getProperty(MAIL_USERNAME);password = sendProps.getProperty(MAIL_PASSWORD);mailHost = sendProps.getProperty(MAIL_HOSTNAME);} catch (IOException e) {e.printStackTrace();logger.error("An error occured when load data from mail_config.properties and mail_send.properties!");logger.error("Fail initialize!");logger.error(e.toString());}System.out.println("userName:" + userName);System.out.println("password:" + password);System.out.println("mailHost:" + mailHost);if (StringUtils.isEmpty(userName)) {logger.error("Username should be defined!");}if (StringUtils.isEmpty(password)) {logger.error("Password should be defined!");}if (StringUtils.isEmpty(mailHost)) {logger.error("Mailhost should be defined!");}}/** * send asynchronism mail * @param mail */public static void send(final MailProperty mail) {new Thread() {public void run() {send0(mail);}}.start();}/** * send mail * @param mail * @return success or not */private static boolean send0(MailProperty mail) {// get session with account name and password Session session = Session.getDefaultInstance(configProps, new javax.mail.Authenticator() { protected PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication(userName, password); } }); // construct message from session MimeMessage message = new MimeMessage(session); try { //sender if (StringUtils.isNotEmpty(mail.getFrom())) { message.setFrom(new InternetAddress(mail.getFrom())); } else { message.setFrom(new InternetAddress(userName + "@" + mailHost)); }//receiversif (!mail.getTo().isEmpty()) {message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(StringUtils.join(mail.getTo(),","), false));}//cc receiversif (!mail.getCc().isEmpty()) {message.setRecipients(Message.RecipientType.CC, InternetAddress.parse(StringUtils.join(mail.getCc(),","), false));}//if (StringUtils.isNotEmpty(mail.getSubject())) {message.setSubject(mail.getSubject());}if (StringUtils.isNotEmpty(mail.getContent())) {message.setText(mail.getContent());}message.setSentDate(new Date());Transport.send(message);} catch (AddressException e) {e.printStackTrace();logger.error(e.toString());return false;} catch (MessagingException e) {e.printStackTrace();logger.error(e.toString());return false;}return true;}/** * A mail model included from,to,cc,subject and content * @author yuanzhxu * */public static class MailProperty {private String from;private List<String> to;private List<String> cc;//private String mailhost;private String subject;private String content;/** * Constructor */public MailProperty() {to = new ArrayList<String>();cc = new ArrayList<String>();}public List<String> getCc() {return cc;}public void addCc(String addr) {this.cc.add(addr);}public String getContent() {return content;}public void setContent(String content) {this.content = content;}public String getFrom() {return from;}public void setFrom(String from) {this.from = from;}public String getSubject() {return subject;}public void setSubject(String subject) {this.subject = subject;}public List<String> getTo() {return to;}public void addTo(String addr) {this.to.add(addr);}}}

 

 mail_config.properties（配置服务器参数）

#server smtp hostmail.smtp.host= smtp.gmail.commail.smtp.auth= truemail.debug= true#security smtp portmail.smtp.port= 465mail.smtp.socketFactory.port= 465mail.smtp.socketFactory.class= javax.net.ssl.SSLSocketFactorymail.smtp.socketFactory.fallback= false

 

mail_send.properties（配置用户名密码）

mail.hostname= gmail.commail.username= xuyuanzhimail.password= *******

 

调用如下：

MailSender.MailProperty mail = new MailSender.MailProperty();mail.setFrom("[e-mail]");mail.addTo("[e-mail]");mail.setSubject("test");mail.setContent("this is a test mail!");MailSender.send(mail);

 

 

后来发现spring封装了javamail，使用很简单，org.springframework.mail.javamail.JavaMailSenderImpl实现了org.springframework.mail.MailSender接口，在applicationContext.xml中配置mailSender

<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl"><property name="host" value="127.0.0.1"/><property name="port" value="25"/><property name="username" value="xuyuanzhi"/><property name="password" value="123456"/><property name="javaMailProperties"> <props> <prop key="mail.smtp.auth">true</prop> </props> </property></bean>

 

测试代码：

ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");MailSender ms = (MailSender)context.getBean("mailSender");SimpleMailMessage smm = new SimpleMailMessage();smm.setFrom("[e-mail]");smm.setTo("[e-mail]");smm.setCc("[e-mail]");smm.setBcc("[e-mail]");smm.setSubject("test subject");smm.setText("hi yuanzhi, this is a test mail!");ms.send(smm);