《pro Spring》学习笔记之使用Velocity+Spring+James邮件服务器发送邮件

所谓集成Velocity发送邮件，最关键的部分就把原来写在配置文件的邮件体用vm模板改写，用hashmap的方式填充vm模板，构造成邮件体

 

package ch15.VelocityMail;


import java.util.Map;

import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;

import org.apache.velocity.app.VelocityEngine;
import org.springframework.mail.javamail.MimeMessagePreparator;
import org.springframework.ui.velocity.VelocityEngineUtils;


public class MessagePreparator implements MimeMessagePreparator ...{
    private String to;
    private String from;
    private String htmlContent;
    private String textContent;
    private String subject;
    private VelocityEngine velocityEngine;
    private Map data;
 
    public String getHtmlContent() ...{
        return htmlContent;
    }
    public void setHtmlContent(String htmlContent) ...{
        this.htmlContent = htmlContent;
    }
    public String getTextContent() ...{
        return textContent;
    }
    public void setTextContent(String textContent) ...{
        this.textContent = textContent;
    }
    public Map getData() ...{
        return data;
    }
    public void setData(Map data) ...{
        this.data = data;
    }
    public VelocityEngine getVelocityEngine() ...{
        return velocityEngine;
    }
    public void setVelocityEngine(VelocityEngine velocityEngine) ...{
        this.velocityEngine = velocityEngine;
    }
    public String getSubject() ...{
        return subject;
    }
    public void setSubject(String subject) ...{
        this.subject = subject;
    }
    public String getTo() ...{
        return to;
    }
    public void setTo(String to) ...{
        this.to = to;
    }
    public String getFrom() ...{
        return from;
    }
    public void setFrom(String from) ...{
        this.from = from;
    }

    public void prepare(MimeMessage msg) throws Exception ...{
        //设置邮件信息
        msg.addFrom(InternetAddress.parse(from));
        msg.addRecipients(Message.RecipientType.TO, InternetAddress.parse(to));
        msg.setSubject(subject);
        
        //创建multipart/alternative的包装器
        MimeMultipart mimeMultipart=new MimeMultipart();
        msg.setContent(mimeMultipart);
        
        //创建text的邮件体
        BodyPart plainText=new MimeBodyPart();
        plainText.setText(VelocityEngineUtils.mergeTemplateIntoString(velocityEngine, textContent, data));
        mimeMultipart.addBodyPart(plainText);
        
        //创建html的邮件体
        BodyPart htmlText=new MimeBodyPart();
        htmlText.setContent(VelocityEngineUtils.mergeTemplateIntoString(velocityEngine, htmlContent, data),"text/html");
        mimeMultipart.addBodyPart(htmlText);
        
    }
     
}

 

package ch15.VelocityMail;

import java.util.HashMap;
import java.util.Map;

import org.springframework.mail.javamail.JavaMailSenderImpl;

public class MessageSender ...{
       
        protected JavaMailSenderImpl sender;
        public void sendMessage(MessagePreparator msg)...{
            Map data=new HashMap();
            data.put("htmlmsg", "hello world html");//htmlmsg为vm文件中的变量
            data.put("textmsg", "hello world text");//textmsg为vm文件中的变量
            msg.setData(data);
            sender.send(msg);
        }
        public JavaMailSenderImpl getSender() ...{
            return sender;
        }
        public void setSender(JavaMailSenderImpl sender) ...{
            this.sender = sender;
        }
       
}

 

 

<?xml version="1.0" encoding="UTF-8"?>
<beans
    xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">
<bean id="messageSender" class="ch15.VelocityMail.MessageSender">
  <property name="sender">
    <ref bean="sender"/>
  </property>
</bean>

<bean id="sender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
  <property name="host">
    <value>king.cn</value>
  </property> 
  <property name="username">
    <value>gaoxiang</value>
  </property>
  <property name="password">
    <value>gaoxiang</value>
  </property>
  <property name="javaMailProperties">
        <props>
           <prop key="mail.smtp.auth">true</prop>
           <prop key="mail.smtp.timeout">10000</prop>
        </props>
  </property>
</bean>

<bean id="messagePreparator" class="ch15.VelocityMail.MessagePreparator">
  <property name="to">
    <value>yulihua2020@126.com</value>
  </property>
  <property name="from">
    <value>gaoxiang@king.cn</value>
  </property>
  <property name="subject">
    <value>html/text mime mail</value>
  </property>
  <property name="htmlContent">
    <value>./src/ch15/VelocityMail/html.vm</value>
  </property>
  <property name="textContent">
    <value>./src/ch15/VelocityMail/text.vm</value>
  </property>
  <property name="velocityEngine">
    <bean class="org.springframework.ui.velocity.VelocityEngineFactoryBean"/>
  </property>
</bean>

</beans>

 

html.VM

this is html message: $htmlmsg

 

text.vm

 

this is text message: $textmsg

 

测试代码：

 

package ch15.VelocityMail;

import java.io.File;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class VelocityMailTest ...{


    public static void main(String[] args) throws Exception ...{
        ApplicationContext context = new ClassPathXmlApplicationContext(
                "ch15/VelocityMail/applicationContext.xml");
        MessagePreparator messagePreparator = (MessagePreparator) context.getBean("messagePreparator");
        MessageSender messageSender=(MessageSender)context.getBean("messageSender");
        for (int i = 0; i < 10; i++) ...{
            messageSender.sendMessage(messagePreparator);
            System.out.println("成功");
            Thread.sleep(2000); //发送后延时2秒钟
        }
    }
}