JSP and JavaMail (3) - try to write the first mail sender

zhaozj2021-02-16  56

4. Try to write the first sender

In front, we have made some introductions to JavaMail. Here we can try to write their own procedures.

First, let's write a HTML program index.htm written by the mail, as follows:

-------------------------------------------------- -----------------------------------------

Write an email </ title></p> <p></ hEAD></p> <p><body></p> <p><form name = "form1" method = "post" action = "testmail.jsp"></p> <p><table width = "75" border = "0" align = "center" cellspacing = "1" bgcolor = "# 006600" class = "black"></p> <p><tr bgcolor = "# ffffff"></p> <p><TD Width = "24%"> Recident Address: </ TD></p> <p><TD Width = "76%"></p> <p><input name = "to" type = "text" id = "to"> </ td></p> <p></ TR></p> <p><tr bgcolor = "# ffffff"></p> <p><TD> Topic: </ TD></p> <p><TD></p> <p><Input Name = "Title" type = "text" id = "title"> </ td></p> <p></ TR></p> <p><tr></p> <p><TD Height = "107" colspan = "2" bgcolor = "# ffffff"></p> <p><textarea name = "content" cols = "50" rows = "5" id = "content"> </ textarea> </ td></p> <p></ TR></p> <p><tril = "center"></p> <p><TD COLSPAN = "2" BGColor = "# ffffff"></p> <p><Input Type = "Submit" name = "submit" value = "Send"></p> <p><Input Type = "reset" name = "submit2" value = "reset"></p> <p></ td></p> <p></ TR></p> <p></ TABLE></p> <p></ form></p> <p></ body></p> <p></ html></p> <p>Then, we write a handler Testmail.jsp, as follows:</p> <p>-------------------------------------------------- --------------------------------------- <% @ Page ContentType = "Text / HTML; Charset = GB2312 "%></p> <p><% Request.SetCharacterencoding ("GB2312");%> <! - Chinese processing code -></p> <p><! - Introduce the class library to use -></p> <p><% @ Page Import = "java.util. *, javax.mail. *"%></p> <p><% @ Page Import = "javax.mail.internet. *"%></p> <p><html></p> <p><HEAD></p> <p><meta http-equiv = "content-type" content = "text / html; charSet = GB2312"></p> <p><title> Send Success </ Title></p> <p></ hEAD></p> <p><body></p> <p><%</p> <p>Try {</p> <p>// Get mail information from the HTML form</p> <p>String TTO = Request.getParameter ("to");</p> <p>String Ttitle = Request.GetParameter ("Title");</p> <p>String tcontent = Request.getParameter ("Content");</p> <p>Properties PROPS = New Properties (); // You can also use Properties PROPS = System.getProperties ();</p> <p>Props.Put ("mail.smtp.host", "smtp.163.net"); // Store information sent to the mail server</p> <p>Props.put ("mail.smtp.auth", "true"); // simultaneously verified</p> <p>Session s = session.getInstance (PrOPS); // Newly built a message session according to attribute</p> <p>S.SETDEBUG (TRUE);</p> <p>MimeMessage Message = New MimeMessage (s); // Newly built a message object by the mail session</p> <p>// Set the mail</p> <p>InternetAddress from = new internetdress ("boy@163.net");</p> <p>Message.SetFrom (from); // Set the sender</p> <p>InternetAddress to = New InternetAddress (TTO);</p> <p>Message.seTrecipient (Message.RecipientType.to, To); // Set the recipient, and set its reception type to To</p> <p>Message.setSubject (Ttitle); // Set the topic</p> <p>Message.setText (tcontent); // Set the content content</p> <p>Message.setSentDate (new date ()); // Set the send time</p> <p>//send email</p> <p>Message.savechanges (); // Store mail information</p> <p>Transport Transport = S.GetTransport ("SMTP");</p> <p>Transport.connect ("SMTP.163.NET", "BOY", "IloveYou"); // Log in to the mailbox in SMTP</p> <p>Transport.sendMessage (Message, Message.GetallRecipients ()); // Send a message, where the second parameter is all // has set the recipient address</p> <p>Transport.close ();</p> <p>%></p> <p><div align = "center"></p> <p><p> <font color = "# ff6600"> Send success! </ font> </ p></p> <p><p> <a href="ystemail.jsp"> Go see my mailbox </a <br></p> <p><br></p> <p><a href="index.htm"> Send a sealed </a> </ p></p> <p></ div></p> <p><%</p> <p>} catch (messagingException e) {</p> <p>Out.println (E.TOString ());</p> <p>}</p> <p>%></p> <p></ body></p> <p></ html></p> <p>**********************************note*************** ***********************</p> <p>There are many books and online articles to write TestMail.jsp in key parts, as follows:</p> <p>String TTO = Request.getParameter ("to");</p> <p>String Ttitle = Request.GetParameter ("Title");</p> <p>String tcontent = Request.getParameter ("Content");</p> <p>Properties PROPS = New Properties ();</p> <p>Props.Put ("Mail.smtp.host", "SMTP.163.NET");</p> <p>Session s = session.getInstance (PROPS);</p> <p>MimeMessage Message = New MimeMessage (s);</p> <p>InternetAddress from = new internetdress ("boy@163.net");</p> <p>Message.SetFrom (from);</p> <p>InternetAddress to = New InternetAddress (TTO);</p> <p>Message.setRecipient (Message.RecipientType.to, To);</p> <p>Message.setSubject (TTITLE);</p> <p>Message.Settext (tcontent);</p> <p>Message.setSentDate (New Date ());</p> <p>Store = S.GetStore ("POP3");</p> <p>Store.Connect ("POP.163.NET", "BOY", "IloveYou"); // Log in to the mailbox in POP3</p> <p>Transport Transport = S.GetTransport ("SMTP");</p> <p>TRANSPORT.SEND (Message);</p> <p>Store.Close ();</p> <p>In fact, this approach is not reliable, because many of the electronic post office's SMTP server requires us to verify, so when you send an email in this way, you can only send it to the same type of mailbox (ie the same SMTP mailbox), and even sometimes the same type of mailbox also I can't make it. I have tried many ways above, and the results prove that the first way is the most reliable.</p> <p>Ok, I believe you should write the simplest email sender .ok, the next time we will talk about how to write an email to send HTML format.</p> <p>(to be continued)</p></div><div class="text-center mt-3 text-grey"> 转载请注明原文地址:https://www.9cbs.com/read-24744.html</div><div class="plugin d-flex justify-content-center mt-3"></div><hr><div class="row"><div class="col-lg-12 text-muted mt-2"><i class="icon-tags mr-2"></i><span class="badge border border-secondary mr-2"><h2 class="h6 mb-0 small"><a class="text-secondary" href="tag-2.html">9cbs</a></h2></span></div></div></div></div><div class="card card-postlist border-white shadow"><div class="card-body"><div class="card-title"><div class="d-flex justify-content-between"><div><b>New Post</b>(<span class="posts">0</span>) </div><div></div></div></div><ul class="postlist list-unstyled"> </ul></div></div><div class="d-none threadlist"><input type="checkbox" name="modtid" value="24744" checked /></div></div></div></div></div><footer class="text-muted small bg-dark py-4 mt-3" id="footer"><div class="container"><div class="row"><div class="col">CopyRight © 2020 All Rights Reserved </div><div class="col text-right">Processed: <b>0.054</b>, SQL: <b>9</b></div></div></div></footer><script src="./lang/en-us/lang.js?2.2.0"></script><script src="view/js/jquery.min.js?2.2.0"></script><script src="view/js/popper.min.js?2.2.0"></script><script src="view/js/bootstrap.min.js?2.2.0"></script><script src="view/js/xiuno.js?2.2.0"></script><script src="view/js/bootstrap-plugin.js?2.2.0"></script><script src="view/js/async.min.js?2.2.0"></script><script src="view/js/form.js?2.2.0"></script><script> var debug = DEBUG = 0; var url_rewrite_on = 1; var url_path = './'; var forumarr = {"1":"Tech"}; var fid = 1; var uid = 0; var gid = 0; xn.options.water_image_url = 'view/img/water-small.png'; </script><script src="view/js/wellcms.js?2.2.0"></script><a class="scroll-to-top rounded" href="javascript:void(0);"><i class="icon-angle-up"></i></a><a class="scroll-to-bottom rounded" href="javascript:void(0);" style="display: inline;"><i class="icon-angle-down"></i></a></body></html><script> var forum_url = 'list-1.html'; var safe_token = 'SzXCM7VnfFpO0Q8YVphS5Rrnd008TN9cFvsOaWz0jjlYBgjFDCT9z0UzWC8yH2uQQniMuDeHAhKrmgf8zfOkMw_3D_3D'; var body = $('body'); body.on('submit', '#form', function() { var jthis = $(this); var jsubmit = jthis.find('#submit'); jthis.reset(); jsubmit.button('loading'); var postdata = jthis.serializeObject(); $.xpost(jthis.attr('action'), postdata, function(code, message) { if(code == 0) { location.reload(); } else { $.alert(message); jsubmit.button('reset'); } }); return false; }); function resize_image() { var jmessagelist = $('div.message'); var first_width = jmessagelist.width(); jmessagelist.each(function() { var jdiv = $(this); var maxwidth = jdiv.attr('isfirst') ? first_width : jdiv.width(); var jmessage_width = Math.min(jdiv.width(), maxwidth); jdiv.find('img, embed, iframe, video').each(function() { var jimg = $(this); var img_width = this.org_width; var img_height = this.org_height; if(!img_width) { var img_width = jimg.attr('width'); var img_height = jimg.attr('height'); this.org_width = img_width; this.org_height = img_height; } if(img_width > jmessage_width) { if(this.tagName == 'IMG') { jimg.width(jmessage_width); jimg.css('height', 'auto'); jimg.css('cursor', 'pointer'); jimg.on('click', function() { }); } else { jimg.width(jmessage_width); var height = (img_height / img_width) * jimg.width(); jimg.height(height); } } }); }); } function resize_table() { $('div.message').each(function() { var jdiv = $(this); jdiv.find('table').addClass('table').wrap('<div class="table-responsive"></div>'); }); } $(function() { resize_image(); resize_table(); $(window).on('resize', resize_image); }); var jmessage = $('#message'); jmessage.on('focus', function() {if(jmessage.t) { clearTimeout(jmessage.t); jmessage.t = null; } jmessage.css('height', '6rem'); }); jmessage.on('blur', function() {jmessage.t = setTimeout(function() { jmessage.css('height', '2.5rem');}, 1000); }); $('#nav li[data-active="fid-1"]').addClass('active'); </script>