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以下是我对spring发送邮件的总结:
分别使用了两种方法:单例模式和属性全注入的方法。
发送模式又分为:单发,群发。
可发送:text,html模板,附件等。
1、单例模式(单发,群发text)
在classpath底下新建application-mail.xml,内容如下:
Xml代码:
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd"> <!-- 注意:这里的参数(如用户名、密码)都是针对邮件发送者的 --> <bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl"> <property name="host"> <value>smtp.163.com</value> </property> <property name="javaMailProperties"> <props> <prop key="mail.smtp.auth">true</prop> <prop key="mail.smtp.timeout">25000</prop> </props> </property> <property name="username"> <value>username@163.com</value> </property> <property name="password"> <value>password</value> </property> </bean> </beans>
或者把以上的Beans配置到applicaiont.xml里面也可以。
发送text格式的Email类:
/import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import org.springframework.mail.SimpleMailMessage;import org.springframework.mail.javamail.JavaMailSender;public class EmailUtil {private static EmailUtil emailUtil = null;public ApplicationContext ctx = null; private EmailUtil() {//获取上下文 ctx = new ClassPathXmlApplicationContext("applicationContext-mail.xml"); }/** * * @function:获得单例 */public static EmailUtil getInstance(){if(emailUtil==null){synchronized (EmailUtil.class) {if(emailUtil==null) {emailUtil = new EmailUtil();}}}return emailUtil;}public void sentEmails(String emails,String subject,String text){//获取JavaMailSender bean JavaMailSender sender = (JavaMailSender) ctx.getBean("mailSender"); //SimpleMailMessage只能用来发送text格式的邮件 SimpleMailMessage mail = new SimpleMailMessage(); String email[] = emails.split(";");for(int i=0;i<email.length;i++) {try { mail.setTo(email);//接受者 mail.setFrom("username@163.com"); mail.setSubject(subject);//主题 mail.setText(text);//邮件内容 sender.send(mail); } catch (Exception e) { e.printStackTrace(); }}}/** * @function:测试邮件发送 */public static void main(String[] args) {Stringmail_title= "注册成功";Stringmail_content= "恭喜!您已经注册成功.<BR>欢迎使用本网站,主页地址:<a href='http://www.baidu.com'/>"; EmailUtil email = EmailUtil.getInstance(); email.sentEmails("username@163.com",mail_title,mail_content);} }
2.属性全注入的方法(单发,群发html模板)
FreeMarker是一个被广泛使用的模板框架,Spring可以很好的支持该框架。Spring为FreeMarker提供了一个FreeMarkerConfigurer类,通过此类可方便地创建FreeMarker的基础环境,Spring提供FreeMarkerTemplateUtils工具类来完成解析模板的任务。下面以用户注册成功后发送的模板文件registerUser.ftl,${content}标签代表一个可被替换的动态属性。FreeMarker模板的标签支持级联属性,如${user.id}则表示user对象的id属性。在配置文件中已设置好模板目录,所以可在类中直接用模板文件名来定位模板文件。模板文件用UTF-8编码格式,避免中文乱码。通过设置template_update_delay属性,可让FreeMarker定期刷新模板,从而使应用程序在不重启下更新模板。
<html> <head> <meta http-equiv="content-type" content="text/html;charset=utf8"> </head> <body> 恭喜您成功注册!您的用户名为:<font color='red' size='30'>${content}</font> </body> </html>
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd"> <!-- 注意:这里的参数(如用户名、密码)都是针对邮件发送者的 --> <bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl"> <property name="host"> <value>smtp.163.com</value> </property> <property name="javaMailProperties"> <props> <prop key="mail.smtp.auth">true</prop> <prop key="mail.smtp.timeout">25000</prop> </props> </property> <property name="username"> <value>username@163.com</value> </property> <property name="password"> <value>password</value> </property> </bean> </beans> <bean id="freeMarker" class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer"> <property name="templateLoaderPath" value="classpath:mailTemplate"/><!--指定模板文件目录--> <property name="freemarkerSettings"><!-- 设置FreeMarker环境属性--> <props> <prop key="template_update_delay">1800</prop><!--刷新模板的周期,单位为秒--> <prop key="default_encoding">UTF-8</prop><!--模板的编码格式 --> <prop key="locale">zh_CN</prop><!-- 本地化设置--> </props> </property> </bean> <!-- ************************ Email Service配置 ********************************* --> <bean id="emailService" class="EmailService"><property name="sender" ref="mailSender"></property> <property name="freeMarkerConfigurer" ref="freeMarker"></property> </bean></beans>
import javax.mail.MessagingException;import org.springframework.mail.javamail.JavaMailSender;import org.springframework.ui.freemarker.*; import org.springframework.web.servlet.view.freemarker.*; import freemarker.template.*; public abstract class EmailAbstract {protected String from;protected String subject;protected JavaMailSender sender;protected FreeMarkerConfigurer freeMarkerConfigurer=null; //FreeMarker的技术类 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 JavaMailSender getSender() {return sender;}public void setSender(JavaMailSender sender) {this.sender = sender;} public void setFreeMarkerConfigurer(FreeMarkerConfigurer freeMarkerConfigurer) { this.freeMarkerConfigurer = freeMarkerConfigurer; }/** * 发送单个html格式邮件 */public abstract void sendEmail(String content,String address);/** * 批量发送html格式邮件 */public abstract void sendBatchEmail(String content,List<String> address);}
import javax.mail.Message;import javax.mail.MessagingException;import javax.mail.internet.InternetAddress;import javax.mail.internet.MimeMessage;import org.springframework.mail.javamail.MimeMessageHelper;import org.springframework.ui.freemarker.*; import org.springframework.web.servlet.view.freemarker.*; import freemarker.template.*; public class EmailService extends EmailAbstract {/** * 发送带模板的单个html格式邮件 */public void sendMessage(String content,String address) throws MessagingException { MimeMessage msg = sender.createMimeMessage(); //设置utf-8或GBK编码,否则邮件会有乱码,true表示为multipart邮件 MimeMessageHelper helper = new MimeMessageHelper(msg, true, "utf-8"); helper.setTo(address);//邮件接收地址 helper.setFrom(from); //邮件发送地址,这里必须和xml里的邮件地址相同一致 helper.setSubject(subject);//主题 String htmlText = getMailText(content); //使用模板生成html邮件内容 helper.setText(htmlText, true);//邮件内容,注意加参数true,表示启用html格式 sender.send(msg);//发送邮件}/** * 批量发送带附件的html格式邮件 */public void sendBatchEmail(String content,List<String> address) throws MessagingException {MimeMessage msg = sender.createMimeMessage();MimeMessageHelper helper = new MimeMessageHelper(msg, true, "utf-8");String toList = getMailList(address);InternetAddress[] iaToList = new InternetAddress().parse(toList);msg.setRecipients(Message.RecipientType.TO,iaToList);helper.setFrom(from);helper.setSubject(subject);helper.setText(content, true); //添加内嵌文件,第1个参数为cid标识这个文件,第2个参数为资源 helper.addInline("a", new File("E:/logo_a.jpg")); //附件内容 helper.addInline("b", new File("E:/logo_b.png")); File file=new File("E:/测试中文文件.rar"); // 这里的方法调用和插入图片是不同的,使用MimeUtility.encodeWord()来解决附件名称的中文问题 helper.addAttachment(MimeUtility.encodeWord(file.getName()), file); //如果主题出现乱码,可以使用该函数,也可以使用下面的函数 //helper.setSubject(MimeUtility.encodeText(String text,String charset,String encoding)) //第2个参数表示字符集,第三个为目标编码格式。 //MimeUtility.encodeWord(String word,String charset,String encoding) sender.send(msg);}/** * 集合转换字符串 */public String getMailList(List<String> to){ StringBuffer toList = new StringBuffer(); int length = to.size(); if(to!=null && length <2){ toList.append(to.get(0)); }else{ for(int i=0;i<length;i++){ toList.append(to.get(i)); if(i!=(length-1)){ toList.append(","); } } } return toList.toString();}//通过模板构造邮件内容,参数content将替换模板文件中的${content}标签。 private String getMailText(String content) throws Exception { String htmlText = ""; //通过指定模板名获取FreeMarker模板实例 Template tpl = freeMarkerConfigurer.getConfiguration().getTemplate("registerUser.ftl"); Map map = new HashMap();//FreeMarker通过Map传递动态数据 map.put("content",content); //注意动态数据的key和模板标签中指定的属性相匹配 //解析模板并替换动态数据,最终content将替换模板文件中的${content}标签。 htmlText = FreeMarkerTemplateUtils.processTemplateIntoString(tpl,map); return htmlText; } }
使用Spring提供的MailSender异步发送文本邮件 http://www.blogjava.net/sitinspring/archive/2008/08/08/220880.html |
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