Spring邮件服务之附件：Maven + Spring SMTP Mail With Attachment

Spring邮件服务之附件：Maven + Spring SMTP Mail With Attachment

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：

JDK        1.6
  Spring     2.5.6 
Javamail  1.4.4 
Maven     3.0.4 
Myeclipse 8.6.1

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 ="[email protected]"   />
         <!--   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 ="[email protected]"   />
         <!--  
         收件人email
        <property name="to" value="[email protected]" />
        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: [email protected]
 * @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: [email protected]
 * @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", "[email protected]");
        //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 >

运行一下 Junit 的 EmailTest.java 收到邮件：











测试完成，英文、中文、压缩包 附件都能正常发送和下载。


下面附上 Spring 官方文档对Attachment的示例：

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( " [email protected] " );

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 ]