《pro Spring》学习笔记之使用Sprin+James邮件服务器发送复杂类型邮件

最新推荐文章于 2022-11-07 17:52:01 发布

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本文介绍如何创建包含内嵌图片的复杂类型邮件。通过使用Spring框架配置邮件发送组件，实现了HTML邮件中图片的内嵌加载。文章提供了具体的XML配置示例及Java代码实现。

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所谓可替换的复杂类型邮件，就是不简单的html邮件和纯文本邮件而是在html中再加入内嵌图片

实现的大体思路和这篇文章http://blog.youkuaiyun.com/daryl715/archive/2007/09/17/1788481.aspx类似，不过我们要更换一下结果，一般的可替换邮件是
wrapper
----HTML
----TEXT

而加入内嵌图片则变为
wrapper
       ----wrapper
              ----HTML
              ----TEXT
       ----TEXT

<? 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.ComplesChangeMail.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.ComplesChangeMail.MessagePreparator" >

< property name ="to" >

< value > daryl715@tom.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 > <![CDATA[ <html><head><body>this is a pic mail<img src="cid:abc"></body></head></html> ]]> </ value >

</ property >

< property name ="textContent" >

< value > this is a text mail </ value >

</ property >

< property name ="dataHandler" >

< ref bean ="dataHandler" />

</ property >

</ bean >

< bean id ="dataHandler" class ="javax.activation.DataHandler" >

< constructor-arg >

< bean class ="javax.activation.FileDataSource" >

< constructor-arg >

< bean class ="java.io.File" >

< constructor-arg >

< value > ./src/ch15/ComplesChangeMail/mail.jpg </ value >

</ constructor-arg >

</ bean >

</ constructor-arg >

</ bean >

</ constructor-arg >

</ bean >

</ beans >

package ch15.ComplesChangeMail;

import javax.activation.DataHandler;

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.springframework.mail.javamail.MimeMessagePreparator;

public class MessagePreparator implements MimeMessagePreparator {

private String to;

private String from;

private String htmlContent;

private String textContent;

private String subject;

private DataHandler dataHandler;

public DataHandler getDataHandler() {

return dataHandler;

}

public void setDataHandler(DataHandler dataHandler) {

this.dataHandler = dataHandler;

}

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 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(textContent);

mimeMultipart.addBodyPart(plainText);

//创建第二个multipart/alternative的包装器,封装html和内嵌图片

BodyPart relate=new MimeBodyPart();

MimeMultipart mr=new MimeMultipart();

relate.setContent(mr);

mimeMultipart.addBodyPart(relate);

//创建html内容和内嵌图片资源

BodyPart html=new MimeBodyPart();

html.setContent(htmlContent,"text/html");

mr.addBodyPart(html);

BodyPart img=new MimeBodyPart();

img.setHeader("Content-ID", "abc");

img.setDisposition("inline");

img.setDataHandler(dataHandler);

mr.addBodyPart(img);

}

package ch15.ComplesChangeMail;

import org.springframework.mail.javamail.JavaMailSenderImpl;

public class MessageSender {

protected JavaMailSenderImpl sender;

public void sendMessage(MessagePreparator msgP){

sender.send(msgP);

}

public JavaMailSenderImpl getSender() {

return sender;

}

public void setSender(JavaMailSenderImpl sender) {

this.sender = sender;

}

测试代码：

别忘了再classpath下加入一个名为mail.jpg图片

package ch15.ComplesChangeMail;

import java.io.File;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class ComplesChangeTest {

public static void main(String[] args) throws Exception {

ApplicationContext context = new ClassPathXmlApplicationContext(

"ch15/ComplesChangeMail/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

}

别忘了再classpath下加入一个名为mail.jpg