Java邮件服务学习之四：邮箱服务客户端Spring Mail

2023-08-29 11:57:34

一、Spring Mail API

　　Spring邮件抽象层的主要包为org.springframework.mail,Spring提供的邮件发送不仅支持简单邮件的发送、添加附件。

1、邮件发送的核心接口：MailSender，实现类JavaMailSenderImpl；
2、邮件对象：SimpleMailMessage 封装了简单邮件的属性如from, to,cc, subject,text；
org.springframework.mail.javamail.JavaMailSender和org.springframework.mail.javamail.MimeMessagePreparator, 用于准备JavaMail的MIME信件。

引入相关jar包：spring 相关jar包 mail.jar 和 activation.jar

二、Spring mail 发送邮件

1、配置

（1）mail.properties

# mail host

mail.host=smtp.163.com

# smtp port

mail.port=25

mail.encoding=UTF-8

mail.smtp.auth=true

# request timeout

mail.smtp.timeout=25000

mail.username=cac2020@163.com

mail.password=123456

mail.from=email@163.com;

（2）spring-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" xmlns:context="http://www.springframework.org/schema/context"

    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:task="http://www.springframework.org/schema/task"

    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd

            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd

            http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.2.xsd

            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">

    <!-- 扫描该包下的Bean -->

     <context:component-scan base-package="com.jeecg.mail" /> 

    <!-- 加载Properties文件 -->

    <context:property-placeholder location="classpath:mail.properties" />

    <!-- 邮件发送 -->

    <bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">

        <property name="host">

            <value>${mail.host}</value>

        </property>

        <property name="username">

            <value>${mail.username}</value>

        </property>

        <property name="password">

            <value>${mail.password}</value>

        </property>

        <property name="port">

            <value>${mail.port}</value>

        </property>

        <property name="defaultEncoding">

            <value>${mail.encoding}</value>

        </property>

        <property name="protocol">

            <value>smtp</value>

        </property>

        <property name="javaMailProperties">

            <props>

                <prop key="mail.smtp.auth">${mail.smtp.auth}</prop>

                <!-- <prop key="mail.smtp.starttls.enable">true</prop> 取决于使用的邮件服务是否支持STARTTLS加密 -->

                <!-- <prop key="mail.smtp.socketFactory.class">javax.net.ssl.SSLSocketFactory</prop> 取决于是否使用SSL端口发送邮件-->

                <prop key="mail.smtp.socketFactory.fallback">false</prop>

                <prop key="mail.smtp.timeout">${mail.smtp.timeout}</prop>

<!--                 <prop key="mail.sendTo">${mail.sendTo}</prop> -->

                <prop key="mail.debug">true</prop>

            </props>

        </property>

    </bean>

    <!-- 异步线程 -->

    <bean id="taskExecutor" class="org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor">

        <property name="corePoolSize" value="10" />

        <property name="maxPoolSize" value="30" />

    </bean>

</beans>

（3）发送邮件

package com.jeecg.mail.controller;

import javax.mail.MessagingException;

import javax.servlet.http.HttpServletRequest;

import org.jeecgframework.core.common.controller.BaseController;

import org.jeecgframework.core.common.model.json.AjaxJson;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.context.annotation.Scope;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;

import org.springframework.web.bind.annotation.RequestParam;

import org.springframework.web.bind.annotation.ResponseBody;

import org.springframework.web.servlet.ModelAndView;

import com.jeecg.mail.service.MailServiceImpl;

@Scope("prototype")

@Controller

@RequestMapping("/MailController")

public class MailController extends BaseController

{

    @Autowired

    private MailServiceImpl mailService;

    @RequestMapping(params = { "mail", "page" })

    public ModelAndView mail(@RequestParam("page") String page,HttpServletRequest request)

    {

        ModelAndView modelAndView = new ModelAndView(page);

        return modelAndView;

    }

    @RequestMapping(params = "sendTextMail", method = { RequestMethod.POST,RequestMethod.GET})

    @ResponseBody

    public AjaxJson sendTextMail()

    {

        AjaxJson json = new AjaxJson();

        try

        {

            mailService.sendTextMail("cac2020@163.com", "530589482@qq.com", "cac2020@126.com", "【测试】发送一个纯文本邮件",

                    "哈哈哈哈哈哈  这是一个纯文本邮件");

        }

        catch (Exception e)

        {

            json.setMsg(e.getMessage());

            e.printStackTrace();

        }

        return json;

    }

    @RequestMapping(params = "sendHTMLMail", method = { RequestMethod.POST,RequestMethod.GET})

    @ResponseBody

    public AjaxJson sendHTMLMail()

    {

        AjaxJson json = new AjaxJson();

        try

        {

            mailService.sendHTMLMail("cac2020@163.com", "530589482@qq.com", "cac2020@126.com", "【测试】发送一个HTML邮件",

                    "<html><head></head><body><h1>hello!!spring html Mail</h1></body></html>");

        }

        catch (MessagingException e)

        {

            e.printStackTrace();

            json.setMsg(e.getMessage());

        }

        return json;

    }

    @RequestMapping(params = "sendImageMail", method = { RequestMethod.POST,RequestMethod.GET})

    @ResponseBody

    public AjaxJson sendImageMail(HttpServletRequest request)

    {

        AjaxJson json = new AjaxJson();

        try

        {

            String jpgpath = request.getSession().getServletContext().getRealPath("/images/1.jpg");

            mailService.sendImageMail("cac2020@163.com", "530589482@qq.com", "cac2020@126.com", "【测试】发送一个含图片邮件",

                    "<html><head></head><body><h1>hello!!spring image html mail</h1><img src=\"cid:1\"/></body></html>",

                    "1",

                    jpgpath);

        }

        catch (MessagingException e)

        {

            e.printStackTrace();

            json.setMsg(e.getMessage());

        }

        return json;

    }

    @RequestMapping(params = "sendAttachMail", method = { RequestMethod.POST,RequestMethod.GET})

    @ResponseBody

    public AjaxJson sendAttachMail(HttpServletRequest request)

    {

        AjaxJson json = new AjaxJson();

        try

        {

            String filepath = request.getSession().getServletContext().getRealPath("/images/测试.rar");

            mailService.sendAttachMail("cac2020@163.com", "530589482@qq.com", "cac2020@126.com", "【测试】发送一个含附件邮件",

                    "",

                    "测试.rar",

                    filepath);

        }

        catch (MessagingException e)

        {

            e.printStackTrace();

            json.setMsg(e.getMessage());

        }

        return json;

    }

}

注意：

1、Spring容器仅允许最多定义一个PropertyPlaceholderConfigurer(或<context:property-placeholder/>)，其余的会被Spring忽略掉

Spring 配置文件中<context:property-placeholder/>标签如果有多个properties文件 location='classpath:db.properties,classpath:default.properties,classpath:default3.properties,classpath:default2.properties'

参考：

http://blog.csdn.net/smcwwh/article/details/7095027

http://blog.csdn.net/zheng0518/article/details/50179213

http://www.oschina.net/code/snippet_2416648_55116

http://blog.csdn.net/zh921112/article/details/38397801

http://blog.csdn.net/houxuehan/article/details/52184736

http://www.zgxue.com/167/1677686.html

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