前言：說(shuō)過(guò)了 Spring 如何發(fā)送 Email 之后，接著來(lái)說(shuō)一下，怎么樣用 Spring 來(lái)發(fā)送帶有附件的郵件，其實(shí)實(shí)現(xiàn)這個(gè)也很簡(jiǎn)單，
Spring 的官方文檔也有給出例子，下面來(lái)說(shuō)下我的實(shí)現(xiàn)。
環(huán)境：
項(xiàng)目結(jié)構(gòu)：
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">
<!-- 服務(wù)器 -->
<property name="host" value="smtp.yeah.net" />
<!-- 端口號(hào) -->
<property name="port" value="25" />
<!-- 用戶名 -->
<property name="username" value="fancydeepin@yeah.net" />
<!-- 密碼 -->
<property name="password" value="*********" />
<!-- SMTP服務(wù)器驗(yàn)證 -->
<property name="javaMailProperties">
<props>
<!-- 驗(yàn)證身份 -->
<prop key="mail.smtp.auth">true</prop>
</props>
</property>
</bean>
<!--
目前我用過(guò)的EMAIL賬號(hào)都是網(wǎng)易的,下面列出網(wǎng)易的SMTP服務(wù)器名和端口號(hào):
網(wǎng)易郵箱 SMTP服務(wù)器 SMTP端口 POP3服務(wù)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">
<!-- 發(fā)件人email -->
<property name="from" value="fancydeepin@yeah.net" />
<!--
收件人email
<property name="to" value="to@yeah.net" />
email主題(標(biāo)題)
<property name="subject" value="Subject" />
email主題內(nèi)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
* @郵箱: fancydeepin@yeah.net
* @時(shí)間: 2012-6-12
* @描述: 發(fā)送Email工具類
* -----------------------------------------
*/
public class Email {
private JavaMailSender javaMailSender;
private SimpleMailMessage simpleMailMessage;
/**
* @方法名: sendMail
* @參數(shù)名：@param subject 郵件主題
* @參數(shù)名：@param content 郵件主題內(nèi)容
* @參數(shù)名：@param to 收件人Email地址
* @描述語(yǔ): 發(fā)送郵件
*/
public void sendMail(String subject, String content, String to) {
try {
MimeMessage mimeMessage = javaMailSender.createMimeMessage();
/**
* new MimeMessageHelper(mimeMessage,true)之true個(gè)人見(jiàn)解：
* 關(guān)于true參數(shù),官方文檔是這樣解釋的：
* use the true flag to indicate you need a multipart message
* 翻譯過(guò)來(lái)就是：使用true,以表明你需要多個(gè)消息
* 再去翻一下MimeMessageHelper的API,找到這樣一句話：
* supporting alternative texts, inline elements and attachments
* 也就是說(shuō),如果要支持內(nèi)聯(lián)元素和附件就必須給定第二個(gè)參數(shù)為true
* 否則拋出 java.lang.IllegalStateException 異常
*/
MimeMessageHelper messageHelper = new MimeMessageHelper(mimeMessage,true);
messageHelper.setFrom(simpleMailMessage.getFrom()); //設(shè)置發(fā)件人Email
messageHelper.setSubject(subject); //設(shè)置郵件主題
messageHelper.setText(content); //設(shè)置郵件主題內(nèi)容
messageHelper.setTo(to); //設(shè)定收件人Email
/**
* ClassPathResource：很明顯就是類路徑資源,我這里的附件是在項(xiàng)目里的,所以需要用ClassPathResource
* 如果是系統(tǒng)文件資源就不能用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是一個(gè)接口,ClassPathResource和FileSystemResource都實(shí)現(xiàn)了這個(gè)接口
*/
messageHelper.addAttachment(file.getFilename(), file); //添加附件
javaMailSender.send(mimeMessage); //發(fā)送附件郵件
} catch (Exception e) {System.out.println("異常信息：" + e);}
}
//Spring 依賴注入
public void setSimpleMailMessage(SimpleMailMessage simpleMailMessage) {
this.simpleMailMessage = simpleMailMessage;
}
//Spring 依賴注入
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
* @郵箱: fancydeepin@yeah.net
* @時(shí)間: 2012-6-12
* @描述: Junit測(cè)試,運(yùn)行將發(fā)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("標(biāo)題", "內(nèi)容", "收件人郵箱");
}
}
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);
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