最近碰到好多新手问我发送email的问题，特此整理代码如下，以供参考，不妥之处还请指出。
以我的工程为例，需以下准备工作：
1.spring2.5.jar
2.activation.jar
3.velocity-1.6.jar
4.mail-1.4.2.jar
接下来就是写代码了。
1.封装邮件发送器
package com.haixu.platform.pub;
import java.util.Map;
import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.velocity.app.VelocityEngine;
import org.apache.velocity.exception.VelocityException;
import org.springframework.core.io.ClassPathResource;
import org.springframework.mail.MailException;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.ui.velocity.VelocityEngineUtils;
/**
* 邮件发送器
*/
public class MailUtil {
protected final Log log = LogFactory.getLog(getClass());
private JavaMailSender javaMailSender;
private VelocityEngine velocityEngine;
private String from;
private String title;
private String encoding;
private String templateLocation;
private String[] toEmails;
private Map<String,String> model;
public boolean send(){
try {
MimeMessage msg = javaMailSender.createMimeMessage();
MimeMessageHelper message = new MimeMessageHelper(msg, true, "UTF-8");
message.setFrom(from);
message.setSubject(title);
message.setTo(toEmails);
message.setText(getMessage(), true); // 如果发的不是html内容去掉true参数
// message.addInline("myLogo",new ClassPathResource("img/mylogo.gif"));
// message.addAttachment("myDocument.pdf", new ClassPathResource("doc/myDocument.pdf"));
javaMailSender.send(msg);
} catch (MessagingException e) {
e.printStackTrace();
if(log.isWarnEnabled()) {
log.warn("邮件信息导常! 邮件标题为: "+title);
}
return false;
} catch (MailException me) {
me.printStackTrace();
if(log.isWarnEnabled()) {
log.warn("发送邮件失败! 邮件标题为: "+title);
}
return false;
}
return true;
}
/**
* 邮件模板中得到信息
* @return 返回特发送的内容
*/
private String getMessage() {
try {
return VelocityEngineUtils.mergeTemplateIntoString(velocityEngine, templateLocation, encoding, model);
} catch (VelocityException e) {
e.printStackTrace();
log.error("邮件模板读取失败!邮件标题为: "+title);
}
return "";
}
private String[] createToEmail(String to) {
return new String[] {to};
}
public void setToEmail(String to) {
setToEmails(createToEmail(to));
}
public void setJavaMailSender(JavaMailSender javaMailSender) {
this.javaMailSender = javaMailSender;
}
public void setVelocityEngine(VelocityEngine velocityEngine) {
this.velocityEngine = velocityEngine;
}
public void setEncoding(String encoding) {
this.encoding = encoding;
}
public void setModel(Map<String,String> model) {
this.model = model;
}
public void setTemplateLocation(String templateLocation) {
this.templateLocation = templateLocation;
}
public void setTitle(String title) {
this.title = title;
}
public void setToEmails(String[] toEmails) {
this.toEmails = toEmails;
}
public void setFrom(String from) {
this.from = from;
}
public String getTemplateLocation() {
return templateLocation;
}
}
2.spring配置文件，applictionContext-mail.xml：
<?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">
<!-- 属性文件加载 -->
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<!-- <value>classpath:mail.properties</value> -->
<value>/WEB-INF/properties/mail.properties</value>
</list>
</property>
</bean>
<!-- 邮件发送器 -->
<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
<property name="host" value="${mail.host}" />
<property name="username" value="${mail.username}" />
<property name="password" value="${mail.password}" />
<property name="defaultEncoding" value="UTF-8"></property>
<property name="javaMailProperties">
<props>
<prop key="mail.smtp.auth">${mail.smtp.auth}</prop>
<prop key="mail.smtp.timeout">${mail.smtp.timeout}</prop>
</props>
</property>
</bean>
<bean id="velocityEngine"
class="org.springframework.ui.velocity.VelocityEngineFactoryBean">
<property name="resourceLoaderPath" value="classpath:velocity"></property>
</bean>
<bean id="templateMail" class="com.haixu.platform.pub.MailUtil">
<property name="javaMailSender" ref="mailSender"></property>
<property name="from" value="${mail.from}"></property>
<property name="encoding" value="UTF-8"></property>
<property name="templateLocation" value="hello.vm"></property>
<property name="velocityEngine" ref="velocityEngine"></property>
<property name="title" value="www.cpuele.com"></property>
</bean>
</beans>
说明：模板文件放到classpath的velocity目录下，可自行改。
3.发送者邮件信息，mail.properties(WEB-INF下)：
mail.from=yourname@gmail.com
mail.host=smtp.gmail.com
mail.password=yourpassword
mail.smtp.auth=true
mail.smtp.timeout=25000
mail.username=yourname
4.模板文件，hello.vm(classpath的velocity目录下)：
${username}，您好，欢迎来到恒特电器！
5.测试Demo
MailUtil mailUtil = (MailUtil) SpringToolListener.getApplicationContext().getBean("templateMail");
Map<String, String> data = new HashMap<String, String>();
data.put("username", "村长");
mailUtil.setTemplateLocation("hello.vm");
mailUtil.setModel(data);
mailUtil.setToEmail("hengte@cpuele.com");
mailUtil.setTitle("mail with veloctiy and spring");
mailUtil.send();
注意：SpringToolListener是我自己的工具类，可将上述代码替换为MailUtil mailUtil = (MailUtil) context.getBean('templateMail');
tomcat下测试成功。
- velocity-1.6.4.jar (411.5 KB)
- activation.jar (61.5 KB)
- mail-1.4.2.jar (424.7 KB)
本文附件下载:
作者: jerryqiu007
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