前言：说过了 Spring 如何发送 Email 之后，接着来说一下，怎么样用 Spring 来发送带有附件的邮件，其实实现这个也很简单，
Spring 的官方文档也有给出例子，下面来说下我的实现。
环境：
项目结构：
spring-smtp-mail-attachment.xml
<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-2.5.xsd">
<bean id="javaMailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
<!-- 服务器 -->
<property name="host" value="smtp.yeah.net" />
<!-- 端口号 -->
<property name="port" value="25" />
<!-- 用户名 -->
<property name="username" value="fancydeepin@yeah.net" />
<!-- 密码 -->
<property name="password" value="*********" />
<!-- SMTP服务器验证 -->
<property name="javaMailProperties">
<props>
<!-- 验证身份 -->
<prop key="mail.smtp.auth">true</prop>
</props>
</property>
</bean>
<!--
目前我用过的EMAIL账号都是网易的,下面列出网易的SMTP服务器名和端口号:
网易邮箱 SMTP服务器 SMTP端口 POP3服务器 POP3端口
@126.com smtp.126.com 25 pop3.126.com 110
@163.com smtp.163.com 25 pop3.163.com 110
@yeah.net smtp.yeah.net 25 pop3.yeah.net 110
-->
<bean id="simpleMailMessage" class="org.springframework.mail.SimpleMailMessage">
<!-- 发件人email -->
<property name="from" value="fancydeepin@yeah.net" />
<!--
收件人email
<property name="to" value="to@yeah.net" />
email主题(标题)
<property name="subject" value="Subject" />
email主题内容
<property name="text">
<value>ContentText</value>
</property>
-->
</bean>
<bean id="simpleMail" class="com.fancy.util.Email">
<property name="javaMailSender" ref="javaMailSender" />
<property name="simpleMailMessage" ref="simpleMailMessage" />
</bean>
</beans>
Email.java
package com.fancy.util;
import javax.mail.internet.MimeMessage;
import org.springframework.core.io.ClassPathResource;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
/**
* -----------------------------------------
* @文件: Email.java
* @作者: fancy
* @邮箱: fancydeepin@yeah.net
* @时间: 2012-6-12
* @描述: 发送Email工具类
* -----------------------------------------
*/
public class Email {
private JavaMailSender javaMailSender;
private SimpleMailMessage simpleMailMessage;
/**
* @方法名: sendMail
* @参数名：@param subject 邮件主题
* @参数名：@param content 邮件主题内容
* @参数名：@param to 收件人Email地址
* @描述语: 发送邮件
*/
public void sendMail(String subject, String content, String to) {
try {
MimeMessage mimeMessage = javaMailSender.createMimeMessage();
/**
* new MimeMessageHelper(mimeMessage,true)之true个人见解：
* 关于true参数,官方文档是这样解释的：
* use the true flag to indicate you need a multipart message
* 翻译过来就是：使用true,以表明你需要多个消息
* 再去翻一下MimeMessageHelper的API,找到这样一句话：
* supporting alternative texts, inline elements and attachments
* 也就是说,如果要支持内联元素和附件就必须给定第二个参数为true
* 否则抛出 java.lang.IllegalStateException 异常
*/
MimeMessageHelper messageHelper = new MimeMessageHelper(mimeMessage,true);
messageHelper.setFrom(simpleMailMessage.getFrom()); //设置发件人Email
messageHelper.setSubject(subject); //设置邮件主题
messageHelper.setText(content); //设置邮件主题内容
messageHelper.setTo(to); //设定收件人Email
/**
* ClassPathResource：很明显就是类路径资源,我这里的附件是在项目里的,所以需要用ClassPathResource
* 如果是系统文件资源就不能用ClassPathResource,而要用FileSystemResource,例：
* FileSystemResource file = new FileSystemResource(new File("D:/Readme.txt"));
*/
ClassPathResource file = new ClassPathResource("attachment/Readme.txt");
/**
* MimeMessageHelper的addAttachment方法：
* addAttachment(String attachmentFilename, InputStreamSource inputStreamSource)
* InputStreamSource是一个接口,ClassPathResource和FileSystemResource都实现了这个接口
*/
messageHelper.addAttachment(file.getFilename(), file); //添加附件
javaMailSender.send(mimeMessage); //发送附件邮件
} catch (Exception e) {System.out.println("异常信息：" + e);}
}
//Spring 依赖注入
public void setSimpleMailMessage(SimpleMailMessage simpleMailMessage) {
this.simpleMailMessage = simpleMailMessage;
}
//Spring 依赖注入
public void setJavaMailSender(JavaMailSender javaMailSender) {
this.javaMailSender = javaMailSender;
}
}
Junit Test：EmailTest.java
package com.fancy.test;
import junit.framework.TestCase;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.fancy.util.Email;
/**
* -----------------------------------------
* @文件: EmailTest.java
* @作者: fancy
* @邮箱: fancydeepin@yeah.net
* @时间: 2012-6-12
* @描述: Junit测试,运行将发送一封email
* -----------------------------------------
*/
public class EmailTest extends TestCase {
public void testSendMail() {
ApplicationContext context = new ClassPathXmlApplicationContext("spring-smtp-mail-attachment.xml");
Email mail = (Email)context.getBean("simpleMail");
mail.sendMail("Spring SMTP Mail With Attachment Subject", "Spring SMTP Mail With Attachment Text Content", "fancyzero@yeah.net");
//mail.sendMail("标题", "内容", "收件人邮箱");
}
}
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.fancy</groupId>
<artifactId>spring-mail-attachment-example</artifactId>
<version>1.0</version>
<packaging>jar</packaging>
<name>spring-mail-attachment-example</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<!-- Spring framework -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring</artifactId>
<version>2.5.6</version>
</dependency>
<!-- Javamail API -->
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.4.4</version>
</dependency>
<!-- Junit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.1</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
24.3.1.1 Attachments
The following example shows you how to use the MimeMessageHelper to send an email along with a single JPEG image attachment.
JavaMailSenderImpl sender = new JavaMailSenderImpl();
sender.setHost("mail.host.com");
MimeMessage message = sender.createMimeMessage();
// use the true flag to indicate you need a multipart message
MimeMessageHelper helper = new MimeMessageHelper(message, true);
helper.setTo("test@host.com");
helper.setText("Check out this image!");
// let's attach the infamous windows Sample file (this time copied to c:/)
FileSystemResource file = new FileSystemResource(new File("c:/Sample.jpg"));
helper.addAttachment("CoolImage.jpg", file);
sender.send(message);
[ 转载出处：http://www.blogjava.net/fancydeepin ]