Spring JavaMail發送郵件

JavaMail的介紹

     JavaMail，顧名思義，提供給開發者處理電子郵件相關的編程接口。它是Sun發布的用來處理email的API。它可以方便地執行一些常用的郵件傳輸。

　  雖然JavaMail是Sun的API之一，但它目前還沒有被加在標准的java開發工具包中（Java Development Kit），這就意味着你在使用前必須另外下載JavaMail文件。除此以外，你還需要有Sun的JavaBeans Activation Framework （JAF）。JavaBeans Activation Framework的運行很復雜，在這里簡單的說就是JavaMail的運行必須得依賴於它的支持。在Windows 2000下使用需要指定這些文件的路徑，在其它的操作系統上也類似。

 　　JavaMail是可選包，因此如果需要使用的話你需要首先從java.sun.com下載。目前最新版本是JavaMail1.4，使用JavaMail的時候需要Javabean Activation Framework的支持，因此你也需要下載JAF。安裝JavaMail只是需要把他們加入到CLASSPATH中去，如果你不想修改CLASSPATH的話，可以直接把他們的jar包直接copy到JAVA_HOME/lib/ext下。這樣JavaMail就安裝好了。

 

　　JavaMail包中用於處理電子郵件的核心類是：Session,Message,Address,Authenticator,Transport,Store,Folder等。Session定義了一個基本的郵件會話，它需要從Properties中讀取類似於郵件服務器，用戶名和密碼等信息

 

1.郵件協議

主要包括：

SMTP協議：Simple Mail Transfer Protocol，即簡單郵件傳輸協議，用於發送電子郵件

POP3協議：Post Office Protocol 3，即郵局協議的第三個版本，用於接收郵件

IMAP協議：Internet Message Access Protocol，即互聯網消息訪問協議，是POP3的替代協議

 

2.搭建James郵件服務器

James是Apache的一個開源項目，純Java實現

搭建James服務器

  1）下載apache-james-2.3.2.zip解壓

 

  2）運行bin目錄下的run.bat即可啟動服務器

  3） 通過apps\james\SAR-INF\config.xml配置服務器

 

 

一定注意：先到bin下run一道 放如非中文目錄  得再控制面板開啟Telnet客戶端

  Telnet  localhost 4555

 

3.安裝OutLook[郵件客戶端]

產品秘鑰：PQDV9-GPDV4-CRM4D-PHDTH-4M2MT

創建用戶賬號

一、使用telnet連接James的Remote Administration Tool

二、以管理員身份登錄

三、使用adduser命令添加用戶

 

4.配置outlook郵件客戶端

為了方便查看，可以配置Microsoft Outlook郵件客戶端,保證James郵件服務器是啟動狀態，啟動Microsoft Outlook.

選擇“工具”->“選項”，打開“選項”面板。選擇“郵件設置”並點擊“電子郵件賬戶”，打開“賬號設置”面板。在“電子郵件”選項卡下新建郵件賬戶

5.案例[搭建James郵件服務器]

需求說明:

在本機搭建James郵件服務器，自定義服務器的名稱。

創建兩個測試用戶。

在Microsoft Outlook中配置其中一個測試用戶為Outlook郵件賬戶

6.使用JavaMail發送電子郵件(案例)

 需求：

使用JavaMail技術，實現從A賬戶給B賬戶發送一封電子郵件，標題為“會議通知”，郵件內容為“XX你好！請於明天下午16:00 准時到B01會議室召開技術討論會。”通過Outlook 客戶端查看郵件程序發送的郵件是否發送成功

關鍵代碼：

創建一個類EmailAuthenticator並繼承自Authenticator，並植入用戶名和密碼

 

package cn.mail;



import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;

public class EmailAuthenticator extends Authenticator {
    private String username;   
      
    private String userpass;

    public void setUsername(String username) {
        this.username = username;
    }

    public void setUserpass(String userpass) {
        this.userpass = userpass;
    }

    public EmailAuthenticator() {
    }

    public EmailAuthenticator(String username, String userpass) {
        this.username = username;
        this.userpass = userpass;
    }
    public PasswordAuthentication getPasswordAuthentication(){
        return new PasswordAuthentication(username,userpass);
    }
    
}

創建Mail類設置郵件信息：

package cn.mail;



import java.util.Date;
import java.util.Properties;

import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class Mail {
  private String mailServer,from,to,mailSubject,mailContent;
  private String username,password;
  public Mail(){
      //設置郵件信息
      //進行認證登錄的用戶名
      username="[e-mail]";
      //認證密碼
      password="zt";
      //認證的郵箱對應的郵件服務器
      mailServer="192.168.17.173";
      //發件人信息
      from="zt";
      //收件人信息
      to="[e-mail]";
      //郵件標題
      mailSubject="呵呵";
      //郵件內容
      mailContent="呵呵火狐";
  }
  //設置郵件服務器
  @SuppressWarnings("static-access")
public  void send(){
      Properties prop=System.getProperties();
      //指定郵件server
      prop.put("mail.smtp.host", mailServer);
      
      //是否開啟認證
      prop.put("mail.smtp.auth", "true");
      
      //smtp協議的
      prop.put("mail.smtp.port", "25");
      //產生Session服務
      EmailAuthenticator mailauth=new EmailAuthenticator(username, password);
      Session mailSession=Session.getInstance(prop,(Authenticator)mailauth);
       try {
           //封裝Message對象
           Message message=new MimeMessage(mailSession);
           
           message.setFrom(new InternetAddress(from)); //發件人
           message.setRecipient(Message.RecipientType.TO, new InternetAddress(to));//收件人
           message.setSubject(mailSubject);
           //設置內容(設置字符集處理亂碼問題)
           message.setContent(mailContent,"text/html;charset=gbk");
           message.setSentDate(new Date());
           //創建Transport實例，發送郵件
           Transport tran=mailSession.getTransport("smtp");
           tran.send(message,message.getAllRecipients());
           tran.close();
           
        } catch (Exception e) {
            e.printStackTrace();
        }
  }
}

測試類：

package cn.mail;



public class Test {
    public static void main(String[] args) {
        Mail mail=new Mail();
        mail.send();
        System.out.println("success!");
    }

}

 

 

 發送帶附件的Mail

MailWithAttachment：

package cn.bdqn;

import java.io.IOException;

import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeUtility;

import org.springframework.core.io.ClassPathResource;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;

public class MailWithAttachment {
    private JavaMailSender mailSender; //必須使用 JavaMailSender
    public void setMailSender(JavaMailSender mailSender) {
        this.mailSender = mailSender;
    }
    
    public void send() throws MessagingException,IOException{
        MimeMessage mimeMessage = mailSender.createMimeMessage();
        MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true, "UTF-8");
        helper.setFrom("[e-mail]");
        helper.setTo("[e-mail]");
        
        helper.setSubject("問好");
        helper.setText("好久不見，最近好嗎？");
        //添加附件1
        ClassPathResource file1 = new ClassPathResource(
                                        "/cn/bdqn/attachfiles/test.doc");
        helper.addAttachment(file1.getFilename(), file1.getFile());
        //添加附件2：附件的文件名為中文時，需要對文件名進行編碼轉換，解決亂碼問題
        ClassPathResource file2 = new ClassPathResource(
                                        "/cn/bdqn/attachfiles/附件測試文件.doc");
        helper.addAttachment(MimeUtility.encodeWord(file2.getFilename()),file2.getFile());
        mailSender.send(mimeMessage);
    }
}

測試類：

package cn.bdqn;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class MailTest {
    public static void main(String[] args){
        ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
        
        /*測試帶附件的郵件*/
        try{
            MailWithAttachment mailWithAttach = (MailWithAttachment)context.getBean("mailWithAttachment");
            mailWithAttach.send();
        }catch(Exception e){
            System.out.print(e.toString());
        }
    }
}    

applicationContext.xml：大配置

<?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:p="http://www.springframework.org/schema/p"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd">
    <bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
        <property name="host" value="192.168.17.173"></property><!-- 服務器 -->
        <property name="port" value="25"></property><!-- 端口 -->
        <property name="username" value="jpp"></property><!-- 用戶名 -->
        <property name="password" value="jpp"></property><!-- 密碼 -->
        <property name="protocol" value="smtp" ></property><!-- 協議 -->
        <property name="defaultEncoding" value="utf-8"></property><!-- 默認編碼 -->
        <property name="javaMailProperties">
            <props>
                <!-- 設置SMTP服務器需要用戶驗證  -->
                <prop key="mail.smtp.auth">true</prop>
            </props>
        </property>
    </bean>
    
    <bean id="mailWithAttachment" class="cn.bdqn.MailWithAttachment">
        <property name="mailSender" ref="mailSender"></property>
    </bean>

</beans>

發送帶圖片的mail

Mail.com

package cn.bdqn.pojo;

import java.io.File;

public class Mail {
    private String from;
    private String to;
    private String subject;
    private String content;
    private File file;
    private String fileName;
    
    public Mail(){}
    public Mail(String from, String to, String subject, String content, File file, String fileName){
        this.from = from;
        this.to = to;
        this.subject = subject;
        this.content = content;
        this.file = file;
        this.fileName = fileName;
    }
    public String getFrom() {
        return from;
    }
    public void setFrom(String from) {
        this.from = from;
    }
    public String getTo() {
        return to;
    }
    public void setTo(String to) {
        this.to = to;
    }
    public String getSubject() {
        return subject;
    }
    public void setSubject(String subject) {
        this.subject = subject;
    }
    public String getContent() {
        return content;
    }
    public void setContent(String content) {
        this.content = content;
    }
    public File getFile() {
        return file;
    }
    public void setFile(File file) {
        this.file = file;
    }
    public String getFileName() {
        return fileName;
    }
    public void setFileName(String fileName) {
        this.fileName = fileName;
    }
    
    
}

MailService:

package cn.bdqn.service;

import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeUtility;

import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;

import cn.bdqn.pojo.Mail;

public class MailService {
    private JavaMailSender mailSender;

    public void setMailSender(JavaMailSender mailSender) {
        this.mailSender = mailSender;
    }
    public void sendMail(Mail mail){
        try{
            MimeMessage mimeMessage = mailSender.createMimeMessage();
            MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true, "UTF-8");
            helper.setFrom("[e-mail]");
            helper.setTo(mail.getTo());
            
            helper.setSubject(mail.getSubject());
            helper.setText(mail.getContent());
            //（1）要直接使用帶后綴的文件名全稱， （2）需要處理中文亂碼問題
            helper.addAttachment(MimeUtility.encodeWord(mail.getFileName()),mail.getFile());
            mailSender.send(mimeMessage);
        }catch(Exception e){
            e.printStackTrace();
        }
    }
}

SendMailAction:

package cn.bdqn.action;

import java.io.File;

import cn.bdqn.pojo.Mail;
import cn.bdqn.service.MailService;

import com.opensymphony.xwork2.ActionSupport;

public class SendMailAction extends ActionSupport{
    private static final long serialVersionUID = 1L;

    private MailService mailService =null;
    private String from;
    private String to;
    private String subject;
    private String content;
    private File upload;
    private String uploadFileName;
    
    @Override
    public String execute() throws Exception {
        Mail mail = new Mail(getFrom(),getTo(),getSubject(),getContent(),getUpload(),getUploadFileName());
        mailService.sendMail(mail);
        
        return "success";
    }
    
    public void setMailService(MailService mailService) {
        this.mailService = mailService;
    }
    
    public File getUpload() {
        return upload;
    }

    public void setUpload(File upload) {
        this.upload = upload;
    }
    public String getFrom() {
        return from;
    }

    public void setFrom(String from) {
        this.from = from;
    }

    public String getTo() {
        return to;
    }

    public void setTo(String to) {
        this.to = to;
    }

    public String getSubject() {
        return subject;
    }

    public void setSubject(String subject) {
        this.subject = subject;
    }

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content;
    }

    public String getUploadFileName() {
        return uploadFileName;
    }

    public void setUploadFileName(String uploadFileName) {
        this.uploadFileName = uploadFileName;
    }
}

applicationContext.xml：大配置

<?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:p="http://www.springframework.org/schema/p"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd">
    
    
    <bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
        <property name="host" value="192.168.8.71"></property><!-- 服務器 -->
        <property name="port" value="25"></property><!-- 端口 -->
        <property name="username" value="jpp"></property><!-- 用戶名 -->
        <property name="password" value="jpp"></property><!-- 密碼 -->
        <property name="protocol" value="smtp" ></property><!-- 協議 -->
        <property name="defaultEncoding" value="utf-8"></property><!-- 默認編碼 -->
        <property name="javaMailProperties">
            <props>
                <!-- 設置SMTP服務器需要用戶驗證  -->
                <prop key="mail.smtp.auth">true</prop>
            </props>
        </property>
    </bean>
    
    <bean id="mailService" class="cn.bdqn.service.MailService">
        <property name="mailSender" ref="mailSender"></property>
    </bean>

</beans>

struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
    <constant name="struts.i18n.encoding" value="UTF-8"/>
    <package name="default" namespace="/" extends="struts-default">
        <action name="sendmailAction" class="cn.bdqn.action.SendMailAction">
            <result name="success">/sendmail_success.jsp</result>
        </action>
    </package>
    
</struts>    

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" 
    xmlns="http://java.sun.com/xml/ns/javaee" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
    http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
  <display-name></display-name>    
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
  
  <!-- struts2的配置文件 -->
  <filter>
      <filter-name>struts2</filter-name>
      <filter-class>
          org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
      </filter-class>
  </filter>
  <filter-mapping>
      <filter-name>struts2</filter-name>
      <!-- <url-pattern>*.action</url-pattern> -->
      <url-pattern>/*</url-pattern>
  </filter-mapping>
  
  <!-- Spring的配置信息 -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>
  
   <listener>
      <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
   </listener>
   <!-- <filter>
     <filter-name>OpenSessionInViewFilter</filter-name>
     <filter-class>
        org.springframework.orm.hibernate3.support.OpenSessionInViewFilter
     </filter-class>
   </filter> -->
   <!-- <filter-mapping>
      <filter-name>OpenSessionInViewFilter</filter-name>
      <url-pattern>*.action</url-pattern>
   </filter-mapping> -->
</web-app>

index.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@taglib uri="/struts-tags"  prefix="s"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>郵件發送頁</title>
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->
  </head>
  
  <body>
    <H2>郵件發送</H2><br>
    <s:form action="sendmailAction" enctype="multipart/form-data" method="post">
        <s:textfield name="from" label="發件人" value="[e-mail]"/>
        <s:textfield name="to" label="收件人"/>
        <s:textfield name="subject" label="主題"/>
        <s:textarea name="content" label="內容"/>
        <s:file name="upload" lable="選擇附件"/>
        <s:submit name="submit" value="發送郵件"/>
    </s:form>
    
  </body>
</html>

sendmail_success.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib uri="/struts-tags"  prefix="s"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>成功頁</title>
    
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->

  </head>
  
  <body>
        <H2>郵件發送成功！</H2>
  </body>
</html>