<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.3.0.RELEASE</version>
</parent>

 <dependencies>
    <!-- springBoot-->
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
      <version>1.3.0.RELEASE</version>
    </dependency>
    <!-- email -->
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-mail</artifactId>
    </dependency>
    <!-- html模板 -->
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-velocity</artifactId>
    </dependency>
</dependencies>

#發(fā)送郵箱（可以填你自己的郵箱）
email.from = xxxxxxx@qq.com
#目標(biāo)郵箱
email.to = 
#郵箱服務(wù)器
email.host = smtp.qq.com
#授權(quán)碼，在QQ郵箱客戶端生成
email.auth = kpzmxhrkqklwbbbd

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.JavaMailSenderImpl;

import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;
import java.util.Properties;

/**
 * author  : qianweifeng
 * date   : 16/4/9.
 * describe :
 */
@Configuration
public class MailConfig {

  @Autowired
  private Environment env;

  @Bean(name = "JavaMailSender")
  public JavaMailSender getSender(){
    JavaMailSenderImpl javaMailSender = new JavaMailSenderImpl();
    javaMailSender.setUsername(env.getProperty(ConfigConstant.EMAIL_FROM));
    javaMailSender.setHost(env.getProperty(ConfigConstant.EMAIL_HOST));
    javaMailSender.setPort(587);//①
    javaMailSender.setDefaultEncoding("UTF-8");
    Properties props = new Properties();//②
    props.setProperty("mail.smtp.host", env.getProperty(ConfigConstant.EMAIL_HOST));
    props.setProperty("mail.smtp.auth", "true");
    javax.mail.Session session = javax.mail.Session.getDefaultInstance(props,new Authenticator(){
      @Override
      protected PasswordAuthentication getPasswordAuthentication(){
        return new PasswordAuthentication("xxxxxx@qq.com",env.getProperty(ConfigConstant.EMAIL_AUTH));
      }
    });
    javaMailSender.setSession(session);//③
    return javaMailSender;
  }

 
}

import com.service.config.ConfigConstant;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.SmartLifecycle;
import org.springframework.core.env.Environment;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.mail.javamail.MimeMessagePreparator;
import org.springframework.stereotype.Component;

import javax.mail.internet.MimeMessage;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;

/**
 * author  : qianweifeng
 * date   : 16/4/9.
 * describe :
 */
@Component
public class MailUtil implements SmartLifecycle {
  @Autowired
  private JavaMailSender javaMailSender;

  @Autowired
  private Environment env;

  private Logger logger = LoggerFactory.getLogger(MailUtil.class);

  private ScheduledExecutorService service = Executors.newScheduledThreadPool(2);

  private final AtomicInteger count = new AtomicInteger(1);

  public MimeMessagePreparator Send(final String text) {
    MimeMessagePreparator preparator = new MimeMessagePreparator() {
      public void prepare(MimeMessage mimeMessage) throws Exception {
        MimeMessageHelper message = new MimeMessageHelper(mimeMessage);
        message.setTo(env.getProperty(ConfigConstant.EMAIL_TO));
        message.setFrom(env.getProperty(ConfigConstant.EMAIL_FROM));
        message.setSubject("java email send test");
//        String text = VelocityEngineUtils.mergeTemplateIntoString(velocityEngine, "velocity/report.vm", "UTF-8", model);
        message.setText(text, true);
      }
    };
    return preparator;
  }


  @Override
  public boolean isAutoStartup() {
    return true;
  }

  @Override
  public void stop(Runnable runnable) {

  }

  @Override
  public void start() {
    service.scheduleWithFixedDelay(new Runnable() {
      @Override
      public void run() {
        try {
          if (count.get() == 2) {
            service.shutdown();
            logger.info("the task is down");
          }
          logger.info("start send email and the index is " + count);

          javaMailSender.send(Send("test !" + "*" + count.getAndIncrement()));

          logger.info("send email success");
        }catch (Exception e){
          logger.error("send email fail" , e);
        }

      }
    },2000,2000, TimeUnit.MILLISECONDS);
  }

  @Override
  public void stop() {

  }

  @Override
  public boolean isRunning() {
    return false;
  }

  @Override
  public int getPhase() {
    return 0;
  }
}

public void send(final String date, final String date2) {


    final List<UVBean> uVBean = getUV(start, end);
    final List<UserResAndLoginReport> resAndLoginReports = dao.RegisterAndLogin(start, end);

    Map model = new HashMap();
    model.put("uVBean", uVBean);
    model.put("resAndLoginReports", resAndLoginReports);
        String text = VelocityEngineUtils.mergeTemplateIntoString(velocityEngine, "velocity/report.vm", "UTF-8", model);
}

<h3>1.UV</h3>
<TABLE border="1px" style="border-collapse: collapse;">
  <TR>
    <td nowrap="nowarp" style="width:80px;" class="date">日期</td>
    <td nowrap="nowarp" style="width:120px;" class="head">UV</td>
  </TR>
  #foreach( $data in $uVBean )
    <TR>
      <TD nowrap="nowarp" class="date">${data.date}</TD>
      <TD nowrap="nowarp" class="count">${data.data}</TD>
    </TR>
  #end
</TABLE>
...

 JavaMailSenderImpl javaMailSender = new JavaMailSenderImpl();
    javaMailSender.setUsername(env.getProperty("spring.mail.username"));
    javaMailSender.setHost(env.getProperty("spring.mail.host"));
    javaMailSender.setPassword(env.getProperty("spring.mail.password"));
    javaMailSender.setPort(25);
    javaMailSender.setDefaultEncoding("UTF-8");
    javaMailSender.send(preparator);