Spring mail 使用多个账号发送带有附件的HTML邮件

环境: Eclipse
DNS: mail.company.com 192.168.x.x

 

程序
 Main
 MailSender
 applicationContext.xml
 VM_global_library.vm

 

附件
 attachment.txt
 inline.jpg

 

类库
 commons-collections-3.1.jar
 commons-logging-1.0.4.jar
 
 mail.jar       // java mail
 activation.jar
 
 spring-beans.jar     // bean
 spring-context.jar     // 配置类
 spring-core.jar      // 核心类库
 spring-support.jar     // spring mail
 
 velocity-1.4.jar     // 模板引擎

 

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

import javax.mail.internet.MimeMessage;

import org.apache.velocity.app.VelocityEngine;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.InputStreamSource;
import org.springframework.core.io.Resource;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.ui.velocity.VelocityEngineUtils;

/**
 * Spring mail 使用多个账号发送带有附件的HTML邮件
 * 
 * 1.JavaMail的API和Spring的邮件抽象层的对比
 * 		优点:Spring的邮件抽象层简化了代码量，并能充分利用IOC功能.
 * 		缺点:要使用部分Spring API，使程序与第三方框架耦合.
 * 
 * 2.Velocity允许我们在模版中设定变量，然后在运行时，动态的将数据插入到模版中，替换这些变量。
 * @author Administrator
 *
 * BUG: 
 * 		附件中文乱码
 */
public class Main {
	public static void main(String[] args) {
		
		/* 1.Spring IOC 获得 Bean */
		ApplicationContext context = new ClassPathXmlApplicationContext(new String[] {"applicationContext.xml"});
		JavaMailSenderImpl sender = (JavaMailSenderImpl) context.getBean("mailSender");		// 可以发送带有附件的邮件
		VelocityEngine velocityEngine = (VelocityEngine)context.getBean("velocityEngine");
		
		try {
			/* 2.邮件内容(VelocityEngine) */
			String templateLocation = "VM_global_library.vm";	// 默认模板(VelocityModel)
			Map<String, String> model = new HashMap<String, String>();
			model.put("CONTENT", "内容");
			String text = VelocityEngineUtils.mergeTemplateIntoString(velocityEngine, templateLocation, model);
			
			/* 3.发送邮件(JavaMailSender) */
			MimeMessage message = sender.createMimeMessage();
			MimeMessageHelper helper = new MimeMessageHelper(message, true, "UTF-8");// 处理中文编码
			
			// 信息
			helper.setSubject("主题");														// 主题
			helper.setFrom(sender.getUsername()); 											// 发件人
			helper.setTo("[e-mail]");													// 收件人
	        helper.setText(text, true);														// 内容(HTML)
	        String contentId = "inline";
	        Resource resource = new ClassPathResource("inline.jpg");
	        String attachmentFilename = "attachment";
	        InputStreamSource inputStreamSource = new ClassPathResource("attachment.txt");
	        helper.addInline(contentId, resource);											// 附件(行内)
			helper.addAttachment(attachmentFilename, inputStreamSource);					// 附件
			
			// 发送
	        sender.send(message);
	        
	        // 发送成功
		} catch (Exception e) {
			// 没有发送成功
		}
	}
}

 

 

import java.util.ArrayList;

import javax.mail.internet.MimeMessage;

import org.springframework.mail.MailException;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.JavaMailSenderImpl;

public class MailSender extends JavaMailSenderImpl implements
		JavaMailSender {
	
	// Accounts
	private ArrayList<String> userNameList;
	private ArrayList<String> passwordList;
	private int currentMailId = 0;

	@Override
	protected void doSend(MimeMessage[] mimeMessage, Object[] object) throws MailException {
		super.doSend(mimeMessage, object);
		
		// Next Accounts
		currentMailId = (currentMailId + 1) % userNameList.size();
		super.setUsername(userNameList.get(currentMailId));
		super.setPassword(passwordList.get(currentMailId));
	}

	@Override
	public void setUsername(String username) {
		if (userNameList == null)
			userNameList = new ArrayList<String>();
		// split usernmae in ,
		String[] userNames = username.split(",");
		if (userNames != null) {
			for (String user : userNames) {
				userNameList.add(user);
			}
		}
		// before send super.setXxx()		// accounts
		super.setUsername(userNameList.get(currentMailId));
	}
	
	@Override
	public void setPassword(String password) {
		if (passwordList == null)
			passwordList = new ArrayList<String>();
		// split password in ,
		String[] passwords = password.split(",");
		if (passwords != null) {
			for (String pw : passwords) {
				passwordList.add(pw);
			}
		}
		// before send super.setXxx() 	// accounts
		super.setPassword(passwordList.get(currentMailId));
	}
}

 

<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN"
"http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
	
	<!-- Spring Mail -->
	<bean id="mailSender" class="MailSender">
		 <!-- 多个账号设置  -->
	     <property name="username" value="[e-mail],[e-mail],[e-mail]"/>
	     <property name="password" value="a,b,c"/>
	     
	     <!-- 邮箱属性设置 -->
	     <property name="javaMailProperties">
	     	<props>
	     		<prop key="mail.smtp.host">mail.company.com</prop>
	     		<!-- 简单邮件传输协议许可 -->
	     		<prop key="mail.smtp.auth">true</prop>
	     		<prop key="mail.debug">true</prop>
	     		<prop key="mail.smtp.timeout">20000</prop>
	     		<!-- SMTP加密方式 tls -->
	     		<prop key="mail.smtp.starttls.enable">false</prop>
	     	</props>
	     </property>
	</bean>

	<!-- Velocity模版引擎 -->
	<bean id="velocityEngine" class="org.springframework.ui.velocity.VelocityEngineFactoryBean">
	   <property name="velocityProperties">
	      <value>
	         resource.loader=class
	         class.resource.loader.class=org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader
	      </value>
	   </property>
	</bean>
</beans>