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使用 Spring MVC 5.xx 框架发送电子邮件的简单方法 - org.springframework.mail。 javamail.JavaMailSenderImpl

已发表: 2018-10-23

使用spring-mvc-4-x-framework发送电子邮件的简单方法

您可能已经阅读过很多关于 Spring MVC 上的 Crunchify 的文章，例如 Spring MVC 框架简介、Hello World Spring MVC、使用 Spring MVC 上传多个文件等。

在本教程中，我们将介绍如何利用org.springframework.mail.javamail.JavaMailSenderImpl库使用 Spring MVC 5.1.3.RELEASE 发送电子邮件。

让我们开始吧：

这是最终的项目结构。 确保相应地创建文件。

Spring MVC 4.1.x 发送邮件项目结构

第1步

创建简单的 Maven 项目CrunchifySpringMVC4SendEmailTutorial 。

  • 选择“ Create a simple project (skip archetype selection) ”选项的复选框
  • 提供类似于下图的所有信息，即我们将在接下来的步骤中使用的组 ID、工件 ID、名称和描述。

创建 Spring MVC Maven 项目

第2步

打开pom.xml文件并添加 3 个依赖项。

  1. 弹簧上下文
  2. 弹簧上下文支持
  3. javax.mail

这是我完整的pom.xml文件。

pom.xml
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< 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 > CrunchifySpringMVC4SendEmailTutorial < / groupId >
< artifactId > CrunchifySpringMVC4SendEmailTutorial < / artifactId >
< version > 0.0.1 - SNAPSHOT < / version >
< name > CrunchifySpringMVC4SendEmailTutorial < / name >
< description > Best way to send an email using Spring MVC 4.1.6 - Crunchify Tips < / description >
< dependencies >
< dependency >
< groupId > org . springframework < / groupId >
< artifactId > spring - context < / artifactId >
< version > 5.1.3.RELEASE < / version >
< / dependency >
< dependency >
< groupId > org . springframework < / groupId >
< artifactId > spring - context - support < / artifactId >
< version > 5.1.3.RELEASE < / version >
< / dependency >
< dependency >
< groupId > javax . mail < / groupId >
< artifactId > mail < / artifactId >
< version > 1.4.7 < / version >
< / dependency >
< / dependencies >
< / project >

第三步

在src/main/resources文件夹下创建 Spring Bean 文件crunchify-bean.xml 。

Spring bean 使用传统的 XML 方法进行配置。 在 Spring MVC 框架中， bean是一个由 Spring IoC（控制反转）容器instantiated 、 assembled和managed的对象。

crunchify-bean.xml
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<? xml version = "1.0" encoding = "UTF-8" ?>
< beans xmlns = "http://www.springframework.org/schema/beans"
xmlns : util = "http://www.springframework.org/schema/util" 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-3.0.xsd
       http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-3.0.xsd" >
 
< ! -- this is your package structure where you create file CrunchifyEmailAPI . java
and CrunchifyEmailTest . java -- >
< context : component - scan base - package = "crunchify.com.tutorials" / >
 
< ! -- Production implementation of the JavaMailSender interface , supporting
both JavaMail MimeMessages and Spring SimpleMailMessages -- >
< bean id = "mailSender" class = "org.springframework.mail.javamail.JavaMailSenderImpl" >
< property name = "host" value = "smtp.gmail.com" / >
< property name = "port" value = "587" / >
< property name = "username" value = "<!-- Provide your Gmail ID -->" / >
< property name = "password" value = "<!-- Provide your Gmail Password -->" / >
 
< ! -- The name of the property , following JavaBean naming conventions -- >
< property name = "javaMailProperties" >
< props >
< prop key = "mail.transport.protocol" > smtp < / prop >
< prop key = "mail.smtp.auth" > true < / prop >
< prop key = "mail.smtp.starttls.enable" > true < / prop >
< prop key = "mail.debug" > true < / prop >
< / props >
< / property >
< / bean >
< / beans >

请确保使用您的真实/实际值更新username和password字段值。

第四步

在src/main/java文件夹下使用@Service (org.springframework.stereotype.Service) 创建 API 类CrunchifyEmailAPI.java注解。

CrunchifyEmailAPI.java
Java
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package crunchify . com . tutorials ;
 
import org . springframework . beans . factory . annotation . Autowired ;
import org . springframework . mail . MailSender ;
import org . springframework . mail . SimpleMailMessage ;
import org . springframework . stereotype . Service ;
 
/**
* @author Crunchify.com
*
*/
 
@Service ( "crunchifyEmail" )
public class CrunchifyEmailAPI {
 
@Autowired
private MailSender crunchifymail ; // MailSender interface defines a strategy
// for sending simple mails
 
public void crunchifyReadyToSendEmail ( String toAddress , String fromAddress , String subject , String msgBody ) {
 
SimpleMailMessage crunchifyMsg = new SimpleMailMessage ( ) ;
crunchifyMsg . setFrom ( fromAddress ) ;
crunchifyMsg . setTo ( toAddress ) ;
crunchifyMsg . setSubject ( subject ) ;
crunchifyMsg . setText ( msgBody ) ;
crunchifymail . send ( crunchifyMsg ) ;
}
}

第 5 步

在src/main/java文件夹下创建测试类CrunchifyEmailTest.java 。

CrunchifyEmailTest.java
Java
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package crunchify . com . tutorials ;
 
import org . springframework . context . ConfigurableApplicationContext ;
import org . springframework . context . support . ClassPathXmlApplicationContext ;
 
/**
* @author Crunchify.com
*
*/
 
public class CrunchifyEmailTest {
 
@SuppressWarnings ( "resource" )
public static void main ( String args [ ] ) {
 
// Spring Bean file you specified in /src/main/resources folder
String crunchifyConfFile = "crunchify-bean.xml" ;
ConfigurableApplicationContext context = new ClassPathXmlApplicationContext ( crunchifyConfFile ) ;
 
// @Service("crunchifyEmail") <-- same annotation you specified in CrunchifyEmailAPI.java
CrunchifyEmailAPI crunchifyEmailAPI = ( CrunchifyEmailAPI ) context . getBean ( "crunchifyEmail" ) ;
String toAddr = "[email protected]" ;
String fromAddr = "[email protected]" ;
 
// email subject
String subject = "Hey.. This email sent by Crunchify's Spring MVC Tutorial" ;
 
// email body
String body = "There you go.. You got an email.. Let's understand details on how Spring MVC works -- By Crunchify Admin" ;
crunchifyEmailAPI . crunchifyReadyToSendEmail ( toAddr , fromAddr , subject , body ) ;
}
}

请确保更新上面的toAddr和fromAddr 。

第 6 步

现在let's run您的 CrunchifyEmailTest.java 并检查console结果。 也不要忘记checkout your Gmail 。

从我的 Gmail 帐户：

Spring MVC 4.1.6 框架发送的邮件

控制台输出：

Debug Output
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Jun 22, 2015 8:38:05 PM org.springframework.context.support.ClassPathXmlApplicationContext prepareRefresh
INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@5010be6: startup date [Mon Jun 22 20:38:05 CDT 2015]; root of context hierarchy
Jun 22, 2015 8:38:06 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from class path resource [crunchify-bean.xml]
DEBUG: JavaMail version 1.4.7
DEBUG: successfully loaded resource: /META-INF/javamail.default.providers
DEBUG: Tables of loaded providers
DEBUG: successfully loaded resource: /META-INF/javamail.default.address.map
DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle]
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: trying to connect to host "smtp.gmail.com", port 587, isSSL false
220 mx.google.com ESMTP gc7sm11710775obb.26 - gsmtp
DEBUG SMTP: connected to host "smtp.gmail.com", port: 587
 
EHLO 192.168.0.3
250-mx.google.com at your service, [25.15.21.112]
250-SIZE 35882577
250-8BITMIME
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-CHUNKING
250 SMTPUTF8
DEBUG SMTP: Found extension "SIZE", arg "35882577"
DEBUG SMTP: Found extension "8BITMIME", arg ""
DEBUG SMTP: Found extension "STARTTLS", arg ""
DEBUG SMTP: Found extension "ENHANCEDSTATUSCODES", arg ""
DEBUG SMTP: Found extension "PIPELINING", arg ""
DEBUG SMTP: Found extension "CHUNKING", arg ""
DEBUG SMTP: Found extension "SMTPUTF8", arg ""
STARTTLS
220 2.0.0 Ready to start TLS
EHLO 192.161.0.22
250-mx.google.com at your service, [25.15.21.112]
250-SIZE 35882577
250-8BITMIME
250-AUTH LOGIN PLAIN XOAUTH2 PLAIN-CLIENTTOKEN XOAUTH
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-CHUNKING
250 SMTPUTF8
DEBUG SMTP: Found extension "SIZE", arg "35882577"
DEBUG SMTP: Found extension "8BITMIME", arg ""
DEBUG SMTP: Found extension "AUTH", arg "LOGIN PLAIN XOAUTH2 PLAIN-CLIENTTOKEN XOAUTH"
DEBUG SMTP: Found extension "ENHANCEDSTATUSCODES", arg ""
DEBUG SMTP: Found extension "PIPELINING", arg ""
DEBUG SMTP: Found extension "CHUNKING", arg ""
DEBUG SMTP: Found extension "SMTPUTF8", arg ""
DEBUG SMTP: Attempt to authenticate using mechanisms: LOGIN PLAIN DIGEST-MD5 NTLM
DEBUG SMTP: AUTH LOGIN command trace suppressed
DEBUG SMTP: AUTH LOGIN succeeded
DEBUG SMTP: use8bit false
MAIL FROM:<test@crunchify.com>
250 2.1.0 OK gc7sm11710775obb.26 - gsmtp
RCPT TO:<test@crunchify.com>
250 2.1.5 OK gc7sm11710775obb.26 - gsmtp
DEBUG SMTP: Verified Addresses
DEBUG SMTP:   test@crunchify.com
DATA
354  Go ahead gc7sm11710775obb.26 - gsmtp
Date: Mon, 22 Jun 2015 20:38:08 -0500 (CDT)
From: test@crunchify.com
To: test@crunchify.com
Message-ID: <428566321.0.1435023488148.JavaMail.app@LM-AUN-11000370>
Subject: Hey.. This email sent by Crunchify's Spring MVC Tutorial
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
 
There you go.. You got an email.. Let's understand details on how Spring MVC works -- By Crunchify Admin
.
250 2.0.0 OK 1435023491 gc7sm11710775obb.26 - gsmtp
QUIT
221 2.0.0 closing connection gc7sm11710775obb.26 - gsmtp