Spring中使用FreeMaker或Vilocity模板发送邮件

Spring配置文件：

 <bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">            <property name="host" value="smtp.163.com"/>             <property name="username" value="test"/>            <property name="password" value="123456"/>            <property name="javaMailProperties">                  <props>                    <prop key="mail.smtp.auth">true</prop>                  </props>            </property>     </bean>    <bean id="freeMarkerConfigurer"  class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">           <property name="templateLoaderPath" value="/WEB-INF/freemakertemplate/" />           <property name="freemarkerSettings">               <props>                   <prop key="template_update_delay">0</prop>                   <prop key="default_encoding">GBK</prop>                   <prop key="locale">zh_CN</prop>               </props>           </property>     </bean>            <bean id="velocityEngine" class="org.springframework.ui.velocity.VelocityEngineFactoryBean">           <property name="resourceLoaderPath" value="/WEB-INF/vilocitytemplate/" />          <property name="velocityProperties">               <props>                   <prop key="velocimacro.library">*.vm</prop>                   <prop key="default.contentType">text/html; charset=utf-8</prop>                  <prop key="output.encoding">utf-8</prop>                   <prop key="input.encoding">utf-8</prop>               </props>        </property>     </bean>             <bean id="mailMessage" class="org.springframework.mail.SimpleMailMessage" singleton="false">          <property name="from" value="[e-mail]"/>     </bean>            <bean id="mailEngine" class="test.MailEngine">            <property name="mailSender" ref="mailSender"/>            <property name="velocityEngine" ref="velocityEngine"/>            <property name="freeMarkerConfigurer" ref="freeMarkerConfigurer" />     </bean>   

 MailEngine类：

package common;import java.io.FileNotFoundException;import java.io.IOException;import java.util.Map;import javax.mail.internet.MimeMessage;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;import org.apache.velocity.app.VelocityEngine;import org.apache.velocity.exception.VelocityException;import org.springframework.core.io.ClassPathResource;import org.springframework.mail.MailException;import org.springframework.mail.MailSender;import org.springframework.mail.SimpleMailMessage;import org.springframework.mail.javamail.JavaMailSenderImpl;import org.springframework.mail.javamail.MimeMessageHelper;import org.springframework.ui.freemarker.FreeMarkerTemplateUtils;import org.springframework.ui.velocity.VelocityEngineUtils;import org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer;import com.sun.xml.internal.messaging.saaj.packaging.mime.MessagingException;import freemarker.template.Configuration;import freemarker.template.Template;import freemarker.template.TemplateException;public class MailEngine {    protected static final Log log = LogFactory.getLog(MailEngine.class);    private FreeMarkerConfigurer freeMarkerConfigurer;    private VelocityEngine velocityEngine;    private MailSender mailSender;    public void setFreeMarkerConfigurer(    FreeMarkerConfigurer freeMarkerConfigurer) {this.freeMarkerConfigurer = freeMarkerConfigurer;    }    public void setMailSender(MailSender mailSender) {this.mailSender = mailSender;    }    public void setVelocityEngine(VelocityEngine velocityEngine) {this.velocityEngine = velocityEngine;    }    /**     * 通过模板产生邮件正文     *      * @param templateName     *            邮件模板名称     * @param map     *            模板中要填充的对象     * @return 邮件正文（HTML）     */    // 使用FreeMaker模板    public String generateEmailContentByFreeMarker(String templateName,    Map<?, ?> map) {try {    Configuration configuration = freeMarkerConfigurer    .getConfiguration();    Template t = configuration.getTemplate(templateName);    return FreeMarkerTemplateUtils.processTemplateIntoString(t, map);} catch (TemplateException e) {    log.error("Error while processing FreeMarker template ", e);} catch (FileNotFoundException e) {    e.printStackTrace();    log.error("Error while open template file ", e);} catch (IOException e) {    log.error("Error while generate Email Content ", e);}return null;    }    // 使用Vilocity模板    public String generateEmailContent(String templateName, Map<?, ?> map) {try {    return VelocityEngineUtils.mergeTemplateIntoString(velocityEngine,    templateName, map);} catch (VelocityException e) {    log.error("Error while processing Vilocity template ", e);}return null;    }    /**     * 发送邮件     *      * @param emailAddress     *            收件人Email地址的数组     * @param fromEmail     *            寄件人Email地址, null为默认寄件人[e-mail] * @param bodyText 邮件正文     * @param subject     *            邮件主题     * @param attachmentName     *            附件名     * @param resource     *            附件     * @throws MessagingException     */    public void sendMessage(String[] emailAddresses, String fromEmail,    String bodyText, String subject, String attachmentName,    ClassPathResource resource) throws MessagingException {MimeMessage message = ((JavaMailSenderImpl) mailSender).createMimeMessage(); // use the true flag to indicate you need      // a multipart messageMimeMessageHelper helper = null;try {    helper = new MimeMessageHelper(message, true);    helper.setTo(emailAddresses);    if (fromEmail != null) {helper.setFrom(fromEmail);    }    helper.setText(bodyText, true);    helper.setSubject(subject);    if (attachmentName != null && resource != null)helper.addAttachment(attachmentName, resource);} catch (javax.mail.MessagingException e) {    e.printStackTrace();}((JavaMailSenderImpl) mailSender).send(message);    }    /**     * 发送简单邮件     *      * @param msg     */    public void send(SimpleMailMessage msg) {try {    ((JavaMailSenderImpl) mailSender).send(msg);} catch (MailException ex) {    // log it and go on    log.error(ex.getMessage());}    }    /**     * 使用模版发送HTML格式的邮件     *      * @param msg     *            装有to,from,subject信息的SimpleMailMessage     * @param templateName     *            模版名,模版根路径已在配置文件定义于freemakarengine中     * @param model     *            渲染模版所需的数据     */    public void send(SimpleMailMessage msg, String templateName, Map<?, ?> model) {// 生成html邮件内容String content = generateEmailContent(templateName, model);MimeMessage mimeMsg = null;try {    mimeMsg = ((JavaMailSenderImpl) mailSender).createMimeMessage();    MimeMessageHelper helper = new MimeMessageHelper(mimeMsg, true,    "utf-8");    helper.setTo(msg.getTo());    if (msg.getSubject() != null)helper.setSubject(msg.getSubject());    if (msg.getFrom() != null)helper.setFrom(msg.getFrom());    helper.setText(content, true);    ((JavaMailSenderImpl) mailSender).send(mimeMsg);} catch (javax.mail.MessagingException e) {    e.printStackTrace();}    }}

 

SimpleMailMessage message = (SimpleMailMessage) getBean("mailMessage");    message.setTo(user.getName() + "<" + user.getEmail() + ">");    Map model = new HashMap();    model.put("user", user);                       MailEngine engine = (MailEngine)getBean("mailEngine");    //Vilocity模板    engine.send(message, "notifyUser.vm", model);    //FreeMaker模板    //engine.send(message, "NotifyUser.ftl", model);    以上的User为用户类。   

模板：

  <html>   <head>   <meta http-equiv="Content-Type" content="text/html;charset=UTF-8">   <title>用户注册通知title>   <head>   <body>   <p>${user.name} 您好，恭喜您，已经成为本站会员！p>   <table>   <tr><td>用户名：td><td>${user.name}td>tr>   <tr><td>密码：td><td>${user.password}td>tr>   </table>   </body>   </html>