整體效果：
發送端：網易郵箱；接收端：qq郵箱。
1.web前端
2.在網易郵箱“已發送”中可以看見通過java代碼發送的郵件
3.同樣在qq郵箱中也可以看到這樣的效果
實現過程：
1.web前端（bootstrap佈局）
<form action="mailAction!sendMail" method="post" name="mailForm" id="mailFormId"> <ul> <li> <div> <span id="basic-addon1">姓名:</span> <input type="text" placeholder="your name" name="mailForm.name" aria-describedby="basic-addon1"> </div> </li> <li> <div> <span id="basic-addon2">電話:</span> <input type="text" placeholder="your phone" name="mailForm.phone" aria-describedby="basic-addon1"> </div> </li> <li> <div> <span id="basic-addon2">郵件:</span> <input type="text" placeholder="your e-mail" name="mailForm.e_mail" aria-describedby="basic-addon1"> </div> </li> <li style="padding-top: 20px;"> <span>消息:</span> <br><br> <textarea rows="10" name="mailForm.content" placeholder="請輸入消息（不要超過500個字符）"></textarea> </li> <li> <center><button onclick="$('#mailFormId').submit();" type="button">發送郵件</button></center> </li> </ul></form> 2.首先準備一個XML的模板（<xml-body>包含的是郵件的html格式的文本）。
<?xml version="1.0" encoding="UTF-8"?><!-- 將空格換成全角的空格，就可以保證html不會將空格過濾掉--><xml-body> <html> <head> </head> <body style="margin: 0; padding: 0;"> <table cellpadding="0" cellspacing="0"> <tbody><tr> <td style="padding: 10px 0 30px 0;"> <table align="center" cellpadding="0" cellspacing="0" style="border: 1px solid #cccccc; border-collapse: collapse;"> <tbody><tr> <td align="center" bgcolor="#70bbd9" style="padding: 40px 0 30px 0; color: #153643; font-size: 28px; font-weight: bold; font-family: Arial, sans-serif;"> <img src="cid:{4}" style="display: block;"/> </td> </tr> <tr> <td bgcolor="#ffffff" style="padding: 40px 30px 40px 30px;"> <table cellpadding="0" cellspacing="0"> <tbody><tr> <td style="color: #153643; font-family: Arial, sans-serif; font-size: 24px;"> <b> 發件人: {0} <br/> 電話: {1} <br/> 郵箱: {2} <br/> 內容:<br/> </b> </td> </tr> <tr> <td style="padding: 20px 0 30px 0; color: #153643; font-family: Arial, sans-serif; font-size: 16px; line-height: 20px;"> {3} </td> </tr> <tr> <td> <table cellpadding="0" cellspacing="0"> <tbody><tr> <td valign="top"> <table cellpadding="0" cellspacing="0"> <tbody><tr> <td> <img src="cid:{5}" style="display: block;"/> </td> </tr> </tbody></table> </td> <td style="font-size: 0; line-height: 0;"> </td> <td valign="top"> <table cellpadding="0" cellspacing="0"> <tbody><tr> <td> <img src="cid:{6}" style="display: block;"/> </td> </tr> </tbody></table> </td> </tr> </tbody></table> </td> </tr> </tbody></table> </td> </tr> <tr> <td bgcolor="#ee4c50" style="padding: 30px 30px 30px 30px;"> <table cellpadding="0" cellspacing="0"> <tbody><tr> <td align="right"> <table cellpadding="0" cellspacing="0"> <tbody><tr> <td style="font-family: Arial, sans-serif; font-size: 12px; font-weight: bold;"> <img src="cid:{7}" style="display: block;"/> </td> <td style="font-family: Arial, sans-serif; font-size: 12px; font-weight: bold;"> <img src="cid:{8}" style="display: block;"/> </td> </tr> </tbody></table> </td> </tr> </tbody></table> </td> </tr> </tbody></table> </td> </tr> </tbody></table> </body> </html></xml-body>其中模板中會有一些標識符，如{i}，表還是字符串的預留位置，然後通過MessageFormat格式化這樣的消息，然後將格式化後的字符串插入到模式中的適當位置。
//得到XML的模板String XML_path = ServletActionContext.getServletContext().getRealPath("/mailTemplate")+"/myMailTemplete.xml"; String str=new ReaderXML().read(XML_path); Object[] obj=new Object[]{mailForm.getName(), mailForm.getPhone(), mailForm.getE_mail(), mailForm.getContent(), "e_mail", "left", "right", "tw", "fb"}; //MessageFormat可以格式化這樣的消息，然後將格式化後的字符串插入到模式中的適當位置String tcontent = MessageFormat.format(str, obj);最終XML模板中的{i}分別被obj[i]替換了。
3.寫一個對XML模板的類ReaderXML
public class ReaderXML { public String read(String path){ String str=null; str=reader(path); return str; } private String reader(String path){ SAXReader reader=new SAXReader(); String str=null; try { Document d=reader.read(new File(path)); Element e=d.getRootElement(); Element htmle=e.element("html"); str=htmle.asXML(); } catch (DocumentException e) { e.printStackTrace(); } return str; }} 4.最後就是我們的控制器類MailAction
在HTML 格式的正文中內含圖片是使用MimeBodyPart類的setContentID() 方法設置對應的資源文件的唯一標識符，即MIME 協議對於郵件的結構組織格式中的Content-ID 頭字段，對應著XML模板中的cid:{i}標識， 如<img src="cid:{8}"/>（注:{i}會通過MessageFormat.format替換成對應的字符串）
public class MailAction extends ActionSupport{ private MailForm mailForm; public MailForm getMailForm() { return mailForm; } public void setMailForm(MailForm mailForm) { this.mailForm = mailForm; } //添加內嵌圖片private MimeBodyPart createImageMimeBodyPart(String imageName) throws MessagingException, UnsupportedEncodingException{ FileDataSource fds=new FileDataSource(ServletActionContext.getServletContext().getRealPath("/image")+"/" + imageName + ".gif"); MimeBodyPart mbp=new MimeBodyPart(); DataHandler dh=new DataHandler(fds); mbp.setDataHandler(dh); //設置對應的資源文件的唯一標識符，即MIME 協議對於郵件的結構組織格式中的Content-ID 頭字段； mbp.setHeader("Content-ID", imageName); mbp.setFileName(MimeUtility.encodeText(fds.getName())); return mbp; } public String sendMail(){ try { HttpServletRequest request = ServletActionContext.getRequest(); String pwd = "************";//發件人郵箱密碼String mailfrom = "***********@163.com"; //網易的郵箱String wangyiFrom = mailfrom.substring(0, mailfrom.indexOf('@'));//網易郵箱的用戶名String tu = "163.com"; //發件人郵箱的後綴域名String tto= "**********@qq.com"; //接收郵件的郵箱String ttitle= "有人聯繫你---來自胡峻崢的個人網站"; //根據其物理路徑，得到XML的模板String XML_path = ServletActionContext.getServletContext().getRealPath("/mailTemplate")+"/myMailTemplete.xml"; String str=new ReaderXML().read(XML_path); Object[] obj=new Object[]{mailForm.getName(), mailForm.getPhone(), mailForm.getE_mail(), mailForm.getContent(), "e_mail", "left", "right", "tw", "fb"}; //MessageFormat可以格式化這樣的消息，然後將格式化後的字符串插入到模式中的適當位置String tcontent = MessageFormat.format(str, obj); Properties props=new Properties(); props.put("mail.smtp.host","smtp."+tu);//郵箱SMTP服務器地址端口props.put("mail.smtp.auth","true");//這樣才能通過驗證Session s=Session.getInstance(props); s.setDebug(true); MimeMessage message=new MimeMessage(s); //給消息對象設置發件人/收件人/主題/發信時間InternetAddress from; from = new InternetAddress(mailfrom);//發件人的qq郵箱message.setFrom(from); InternetAddress to=new InternetAddress(tto);//收件人的郵箱message.setRecipient(Message.RecipientType.TO,to); message.setSubject(ttitle); message.setSentDate(new Date()); //給消息對象設置內容BodyPart mbp=new MimeBodyPart();//新建一個存放信件內容的BodyPart對象mbp.setContent(tcontent,"text/html;charset=gb2312");//給BodyPart對象設置內容和格式/編碼方式// 用於組合文本和圖片，"related"型的MimeMultipart對象Multipart mm=new MimeMultipart("related");//新建一個MimeMultipart對像用來存放BodyPart對象(事實上可以存放多個) mm.addBodyPart(mbp);//將BodyPart加入到MimeMultipart對像中(可以加入多個BodyPart) //添加圖片mm.addBodyPart(createImageMimeBodyPart("e_mail")); mm.addBodyPart(createImageMimeBodyPart("left")); mm.addBodyPart(createImageMimeBodyPart("right")); mm.addBodyPart(createImageMimeBodyPart("tw")); mm.addBodyPart(createImageMimeBodyPart("fb")); message.setContent(mm);//把mm作為消息對象的內容message.saveChanges(); Transport transport=s.getTransport("smtp"); transport.connect("smtp."+tu, wangyiFrom, pwd); //這裡的wangyiFrom為發件人網易賬號transport.sendMessage(message,message.getAllRecipients()); transport.close(); ActionContext.getContext().getSession().put("operations", "郵件發送成功, 請耐心等待回复!"); } catch (Exception e) { System.out.println(e.toString()); ActionContext.getContext().getSession().put("errors", e.toString()); return "errors"; } return "sendMail"; }}以上就是本文的全部內容，希望對大家的學習有所幫助。