java发送gmail邮件_101 Java发送邮件（ gmail）

功能

提供异步发送邮件功能。

package org.mall.utils.email;

import java.net.MalformedURLException;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.concurrent.ExecutorService;

import java.util.concurrent.LinkedBlockingQueue;

import java.util.concurrent.ThreadPoolExecutor;

import java.util.concurrent.TimeUnit;

import org.apache.commons.mail.EmailException;

import org.apache.commons.mail.HtmlEmail;

import org.apache.log4j.Logger;

import org.mall.utils.ListUtil;

import org.mall.utils.PropertiesUtils;

import org.mall.utils.log.LoggerUtils;

/**

* @description 邮件发送工具类

* @author fengwuze

* @since 2016年9月20日

* @version 1.0.0

*/

public class EmailUtils {

private static Logger logger = Logger.getLogger(EmailUtils.class);

private static ExecutorService exc = new ThreadPoolExecutor(10, 100, 120L, TimeUnit.SECONDS, new LinkedBlockingQueue());

private static String fromEmail = "kk@gmail.com";

private static String fromName = "kk";

private static String sendUserName = "fengwuze@kk.com";

private static String sendPassword = "xxxoooxxxooo";

/**

* 发送邮件

*

* @param toEmails 收件人列表

* @param subject 主题

* @param emailMsg 邮件内容

*/

public static void sendEmail(String toEmails, String subject, String emailMsg) {

EmailVo emailVo = new EmailVo();

emailVo.toEmails = toEmails;

emailVo.subject = subject;

emailVo.emailMsg = emailMsg;

sendEmail(new EmailTask(emailVo));

}

/**

* 发送邮件(邮件模板)

*

* @param toEmails 收件人列表

* @param subject 主题

* @param emailMsg 邮件内容

*/

public static void sendEmailTemplet(String toEmails, String subject, String templetPath, Map templetParam) {

EmailVo emailVo = new EmailVo();

emailVo.toEmails = toEmails;

emailVo.subject = subject;

emailVo.emailMsg = EmailTemplateUtils.formatEmailContent(templetPath, templetParam);

sendEmail(new EmailTask(emailVo));

}

/**

* 发送邮件

*

* @param emailTask

*/

public static void sendEmail(EmailTask emailTask) {

exc.submit(emailTask);

}

/** 发送邮件Vo */

static class EmailVo {

public String toEmails;

public String subject;

public String emailMsg;

public Integer retry = 0;

}

/** 发送邮件Task */

public static class EmailTask implements Runnable {

public final EmailVo vo;

private EmailTask(EmailVo vo) {

this.vo = vo;

}

@Override

public void run() {

try {

HtmlEmail email = new HtmlEmail();

email.setCharset("utf-8");

email.setHostName("smtp.gmail.com");

email.setSmtpPort(587);

email.setSslSmtpPort("465");

email.setSSLOnConnect(true);

email.setAuthentication(sendUserName, sendPassword);

email.setFrom(fromEmail, fromName);

email.setSocketConnectionTimeout(10000);

email.setSocketTimeout(10000);

List toEmailList = ListUtil.asList(vo.toEmails, ",");

for (String toEmail : toEmailList) {

email.addTo(toEmail);

}

email.setSubject(vo.subject);

email.setHtmlMsg(vo.emailMsg);

email.send();

LoggerUtils.log(logger, "email send succ, toEmails: %s, subject: %s, emailMsg: %s", vo.toEmails, vo.subject, vo.emailMsg);

} catch(Exception e) {

e.printStackTrace();

if(vo != null) {

if(vo.retry > 3) {

LoggerUtils.log(logger, e, "email send fail, toEmails: %s, subject: %s, emailMsg: %s", vo.toEmails, vo.subject, vo.emailMsg);

EmailUtils.sendEmail(new EmailTask(vo));

}

}

}

}

}

public static void main(String[] args) throws EmailException, MalformedURLException {

Map params = new HashMap();

params.put("name", "akkiiiii");

EmailUtils.sendEmailTemplet("fengwuze@gmail.com", "HTML格式邮件测试", "/template/mall/welcome.vm", params);

}

}

模板工具类

package org.mall.utils.email;

import java.io.StringWriter;

import java.util.HashMap;

import java.util.Map;

import org.apache.velocity.Template;

import org.apache.velocity.VelocityContext;

import org.apache.velocity.app.Velocity;

import org.apache.velocity.app.VelocityEngine;

/**

* @description

* @author fengwuze

* @since 2016年9月20日

* @version 1.0.0

*/

public class EmailTemplateUtils {

private static VelocityEngine velocityEngine= new VelocityEngine();

static {

EmailTemplateUtils.velocityEngine.setProperty(Velocity.RESOURCE_LOADER, "class");

EmailTemplateUtils.velocityEngine.setProperty("class.resource.loader.class",

"org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader");

EmailTemplateUtils.velocityEngine.init();

}

/**

* 使用模块技术来生成邮件内容

*

* @param templatePath

* @param params

* @return String

*/

public static String formatEmailContent(String templatePath, Map params) {

Template t = velocityEngine.getTemplate(templatePath, "UTF-8");

VelocityContext context = new VelocityContext();

for (Map.Entry entry : params.entrySet()) {

context.put(entry.getKey(), entry.getValue());

}

StringWriter writer = new StringWriter();

t.merge(context, writer);

return writer.toString();

}

public static void main(String[] args) {

Map params = new HashMap();

params.put("name", "akkiiiii");

for(int i = 0; i < 100000;i++) {

EmailTemplateUtils.formatEmailContent("/template/mall/welcome.vm", params);

}

}

}