使用Spring的JavaMailSenderTest发送邮件，可添加附件

1、IDEA工程目录

2、pom文件，可使用mvn celan install 生成jar运行

<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.zjc</groupId>
  <artifactId>mail</artifactId>
  <version>0.0.1</version>

  <packaging>jar</packaging>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  </properties>

  <dependencies>
      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-context-support</artifactId>
          <version>4.2.6.RELEASE</version>
      </dependency>
      <dependency>
          <groupId>javax.mail</groupId>
          <artifactId>mail</artifactId>
          <version>1.4.4</version>
      </dependency>
  </dependencies>

   <build>  
      <finalName>mail</finalName>
      <plugins>  
            <plugin>  
                  <groupId>org.apache.maven.plugins</groupId>  
                  <artifactId>maven-dependency-plugin</artifactId>
                  <version>2.4</version>  
                  <executions>
                        <execution>
                              <phase>package</phase>  
                              <goals>
                                    <goal>copy-dependencies</goal>  
                              </goals>
                              <configuration>  
                                    ${project.build.directory}为Maven内置变量(${project.build.directory}/lib)，缺省为target
                                    <outputDirectory>${project.build.directory}/lib</outputDirectory>
                               </configuration>  
                          </execution>  
                  </executions> 
            </plugin>
            <plugin>  
                <groupId>org.apache.maven.plugins</groupId>  
                <artifactId>maven-jar-plugin</artifactId>  
                <version>2.4</version>  
                <configuration>  
                   <archive>
                     <manifest>
                          <!-- 告知 maven-jar-plugin添加一个 Class-Path元素到 MANIFEST.MF文件，以及在Class-Path元素中包括所有依赖项 -->  
                         <addClasspath>true</addClasspath> 
                         <!-- 所有的依赖项应该位于 lib文件夹 -->  
                         <classpathPrefix>lib/</classpathPrefix> 
                         <!-- 当用户使用JAVA命令执行JAR文件时，使用该元素定义将要执行的类名 -->  
                         <mainClass>com.zjc.mail.MailSendTest</mainClass>  
                     </manifest>
                   </archive>  
                </configuration> 
          </plugin>
      </plugins>  
  </build> 
</project>

3、mail.properties文件

mail.host=mail.iflytek.com
mail.username=（用户名）@iflytek.com
mail.password=（密码）

4、spring-mail.xml文件配置

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
    <!-- 启用spring mvc 注解 -->
    <context:annotation-config />
    <!-- 加载mail.properties文件中的内容，mail.properties文件中key命名要有一定的特殊规则 -->
    <context:property-placeholder location="classpath:mail.properties" ignore-unresolvable="true" />
    <beans>
        <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 name="javaMailProperties">
                <props>
                    <prop key="mail.smtp.auth">true</prop>
                    <prop key="mail.smtp.timeout">25000</prop>
                    <prop key="mail.smtp.port">25</prop>
                    <prop key="mail.smtp.socketFactory.port">25</prop>
                    <prop key="mail.smtp.socketFactory.fallback">false</prop>
                </props>
            </property>
        </bean>
        <bean id="javaMailSenderTest" class="com.zjc.mail.JavaMailSenderTest">
        </bean>
    </beans>

</beans>

5、MailSendTest.java文件

package com.zjc.mail;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;

/**
 * @Description: TODO
 * @Author 
 * @Date 2018-05-11 20:13
 */
public class MailSendTest {

    public static void main(String[] args) {
        ApplicationContext ac = new ClassPathXmlApplicationContext("spring-mail.xml");
        JavaMailSender mailSender = (JavaMailSender) ac.getBean("mailSender");
        //使用自动装配
//        JavaMailSenderTest mailSender = (JavaMailSenderTest)ac.getBean("javaMailSenderTest");
//        mailSender.send(mail);
        SimpleMailMessage mail = new SimpleMailMessage();
        mail.setTo("****");//收件人邮箱地址
        mail.setFrom("******");//发件人
        mail.setSubject("spring-javamail发送邮件测试");//主题
        mail.setText("spring-javamail邮件发送测试的正文！！");//正文
        mailSender.send(mail);

        //添加附件
        /*
           MimeMessage mimeMessge = senderImpl.createMimeMessage();
           MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMessge,true);
           mimeMessageHelper.setTo("zhangfl85@126.com");
           mimeMessageHelper.setFrom("zhangfl85@163.com");
           mimeMessageHelper.setSubject("添加附件测试");
           mimeMessageHelper.setText("<html><head></head><body><h1>hello!!zhangfl</h1></body></html>",true);
           FileSystemResource img = new FileSystemResource(new File("D:/test.jpg"));
           mimeMessageHelper.addAttachment("test.jpg",img);
           senderImpl.send(mimeMessge);
         */
    }
}

6.JavaMailSenderTest.java（可不使用，目前main未使用此类）

package com.zjc.mail;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;

/**
 * @Description: TODO
 * @Author 
 * @Date 2018-05-11 20:45
 */
public class JavaMailSenderTest {
    @Autowired
    private JavaMailSender mailSender;
    public void send(SimpleMailMessage mail){
        mailSender.send(mail);
    }
}