struts实现邮件发送功能

在实现邮件发送的时候首先需要用到mail.jar开发包，有关mail.jar的下载可以去百度自行下载

下面是邮件发送核心代码

 package com.yysj.lhb.action;

 import javax.activation.DataHandler;
 import javax.activation.FileDataSource;
 import javax.mail.Address;
 import javax.mail.BodyPart;
 import javax.mail.Message;
 import javax.mail.Multipart;
 import javax.mail.internet.InternetAddress;
 import javax.mail.internet.MimeBodyPart;
 import javax.mail.internet.MimeMessage;
 import javax.mail.internet.MimeMultipart;
 import javax.mail.internet.MimeUtility;
 import javax.mail.Session;
 import javax.mail.Transport;

 import java.util.List;
 import java.util.Properties;

 /**
  * 发送邮箱信息
  * @author lhb
  *
  */
 public class EmailSender {

     private static final long serialVersionUID = 1L;
     private MimeMessage mimeMessage;//MiME邮件对象
     private Session session;//邮件会话对象；
     private Properties properties;//系统属性
     private boolean needAuth = false;//smtp是否需要认证
     private String username="";//stmp认证用户和密码
     private String password="";
     private Multipart multipart;//Multipart对象，邮件内容，标题附件等内容添加到其中后再生成
     private String log;

     public EmailSender() {

     }

     public EmailSender(String smtp) {
         setSmtpHost(smtp);
         createMimeMessage();
     }

     /**
      * 设置系统属性
      * @param hostName 主机名
      */
     public void setSmtpHost(String hostName) {
         System.out.println("系统属性：mail.smtp.host="+hostName);
         if(properties == null) {
             properties = System.getProperties();//获取系统属性对象
         }
         properties.put("mail.smtp.host", hostName);
         properties.put("mail smtp.localhost", "localHostAddress");
     }

     /**
      * 创建Mime信息
      * @return 成功返回true;否则返回false
      */
     public boolean createMimeMessage() {
         try {
             System.out.println("准备获取邮件会话对象");
             session = Session.getDefaultInstance(properties, null);//获取右键会话对象
         } catch (Exception e) {
             log = "获取邮件会话对象时发生错误！"+e.toString();
             System.err.println(log);
             return false;
         }
         try {
             mimeMessage = new MimeMessage(session);//创建MIME邮件对象
             multipart = new MimeMultipart();//
             //Multipart is a container that holds multiple body parts
             return true;
         } catch (Exception e) {
             log = "创建MIME邮件对象失败！"+e.toString();
             System.err.println(log);
             return false;
         }
     }

     /**
      * 设置身份认证
      * @param need
      */
     public void setNeedAuth(boolean need) {
         needAuth = need;
         System.out.println("设置smtp身份认证：mail.smtp.auth="+need);
         if(properties == null) {
             properties = System.getProperties();
         }
         if(needAuth) {
             properties.put("mail.smtp.auth", "true");
         }else {
             properties.put("mail.smtp.auth", "false");
         }
     }
      /**
       * 设置用户名和密码
       * @param name
       * @param pass
       */
     public void setNamePass(String name,String pass) {
         System.out.println("得到用户名和密码");
         username = name;
         password = pass;
     }

     /**
      * 设置邮件主题
      * @param mailSubject
      * @return
      */
     public boolean setSubject(String mailSubject) {
         System.out.println("设置邮件主题");
         try {
             mimeMessage.setSubject(MimeUtility.encodeText(mailSubject, "utf-8", "B"));
             return true;
         } catch (Exception e) {
             log = "设置邮件主题发生错误！"+ e;
             System.err.println(log);
             return false;
         }
     }

     /**
      * 设置邮件正文
      * @param mailBody 正文内容
      * @return 设置成功返回true；否则返回false
      */
     public boolean setBody(String mailBody) {
         try {
             System.out.println("设置邮件体格式");
             BodyPart bPart = new MimeBodyPart();
             //转换中文格式
             bPart.setContent("<meta http-equiv=Content-Type content=text/html;charset=utf-8>"+mailBody, "text/html;charset=utf-8");
             multipart.addBodyPart(bPart);
             return true;
         } catch (Exception e) {
             log = "设置邮件正文发生错误！"+e;
             System.err.println(log);
             return false;
         }
     }
     /**
      * 设置附件
      * @param files
      * @return
      */
     public boolean setFiles(List<String> files) {
         try {
             for(String s : files) {
                 MimeBodyPart mimeBodyPart = new MimeBodyPart();
                 FileDataSource fileDataSource = new FileDataSource(s);//得到数据源
                 mimeBodyPart.setDataHandler(new DataHandler(fileDataSource));//得到附件本身并植入BodyPart
                 mimeBodyPart.setFileName(fileDataSource.getName());//得到文件名同样植入BodyPart
                 multipart.addBodyPart(mimeBodyPart);
             }
             return true;
         } catch (Exception e) {
             log = "增加附件时出错!"+e;
             System.err.println(log);
             return false;
         }
     }

     /**
      * 按路径添加附件
      * @param path
      * @param name
      * @return
      */
     public boolean addFile(String path,String name) {

         try {
             MimeBodyPart mimeBodyPart = new MimeBodyPart();
             FileDataSource fileDataSource = new FileDataSource(path);//得到数据源
             mimeBodyPart.setDataHandler(new DataHandler(fileDataSource));//得到附件本身并注入BodyPart
             mimeBodyPart.setFileName(MimeUtility.encodeText(name,"utf-8","B"));
             multipart.addBodyPart(mimeBodyPart);
             return true;
         } catch (Exception e) {
             log = "增加附件出错"+e;
             System.err.println(log);
             return false;
         }

     }

     /**
      * 设置发信人
      * @param from 发信人名称
      * @return
      */
     public boolean setFrom(String from) {
         System.out.println("设置发信人");
         try {
             mimeMessage.setFrom(new InternetAddress(from));//设置发信人
             return true;
         } catch (Exception e) {
             log = "设置发言人出错"+e;
             return false;
         }
     }

     /**
      * 设置收件人
      * @param to
      * @return
      */
     public boolean setTo(String to) {
         System.out.println("设置收件人");
         if(to == null) {
             return false;
         }
         try {
             mimeMessage.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to));
             return true;
         } catch (Exception e) {
             log = "设置收件人错误"+e;
             System.err.println(log);
             return false;
         }
     }

     /**
      *
      * @param copyto
      * @return
      */
     public boolean setCopyTo(String copyto) {
         if(copyto == null) {
             return false;
         }
         try {
             mimeMessage.setRecipients(Message.RecipientType.CC, (Address[])InternetAddress.parse(copyto));
             return true;
         } catch (Exception e) {
             e.printStackTrace();
             return false;
         }
     }

     /**
      * 发送邮件
      * @return
      */
     public boolean sendout() {
         try {
             mimeMessage.setContent(multipart);
             mimeMessage.saveChanges();
             System.out.println("正在发送邮件...");
             Session mailSession = Session.getInstance(properties,null);
             Transport transport = mailSession.getTransport("smtp");
             transport.connect((String)properties.get("mail.smtp.host"), username, password);
             transport.sendMessage(mimeMessage, mimeMessage.getRecipients(Message.RecipientType.TO));
             System.out.println("发送邮件成功!");
             transport.close();
             return true;
         } catch (Exception e) {
             log = "邮件发送失败!"+e;
             System.err.println(log);
             return false;
         }
     }

     public String getLog() {
         return log;
     }

 }

Java代码

action中的代码如下：

 

jsp代码

 <div class="question_form_1">
                     <form action="questionForm" method="get" name="form1">
                         <div class="question_form_1_"  style="color: #6e6e6e;">
                             <h3>有什么需要解惑？ </h3>
                             <textarea class="question_form_youquestion" rows="10" cols="100" id="question_Text" name="question_Text" placeholder="请描述您的问题,比如:心脏前负荷和后负荷有什么区别？动脉血气如何分析？ 什么是膜性肾病？"></textarea>

                         <div class="question_form_1_" style="color: #6e6e6e;">
                             <h3>回复的邮箱或者手机号码</h3>
                             <input class="question_form_contactyou" id="contact_Customer" name="contact_Customer" type="text" placeholder="请输入您的联系方式" />
                         </div>
                         <div class="btn_div">
                             <input type="submit" id="submit" value="发 送" class="btn" />
                         </div>
                     </form>
                 </div>

页面