Use javamail in JSP (on)

Do you want to create a mail to send a collection tool in JSP? The following will be introduced to create a mail sending a collection tool in JSP. In this article you can learn about some of the JavaMail API and how to use it in JSP. This article also includes an example of using JavaMail in JSP. JavaMail is a quite powerful API in the JSP application.

Read this article needs to have a certain initial understanding of JSP, JavaBeans and Javamail. Of course, knowledge about JavaMail you can get through this article. If you don't know much about the above three, the server you use supports JSP and JavaMail, you can use them only by copying / paste.

What is JavaMail

JavaMail is an API for the SUN release to handle Email. It can easily perform some commonly used mail transmission.

Although JavaMail is one of Sun's API, it has not yet been added to the standard Java Development Kit, which means you need to download another JavaMail file before use. In addition, you also need Sun's JavaBeans Activation Framework (JAF). The operation of JavaBeans Activation Framework is very complicated. It is simple to say that JavaMail's operation must depend on its support. Use the path to specify these files in Windows 2000, similar to other operating systems.

The next thing to explain is the most difficult part of this guide.

This guide includes three parts: HTML form, combined with JavaMail, Javamail, and JSP.

Part 1: HTML form

The first part provides an example of the most basic HTML-based Email sending charger. The second part tells the working principle of JavaMail. The third part introduces JavaMail to join JSP, create a basic Email sending charger.

Partitioning components

The most important feature of JSP is to divide the entire web page into some small components. The components used here include:

● One HTML table used to send Email's information to JSP;

● A JSP page is used to process and send letters.

The first step is to create an HTML table to send information to the JSP page. You can copy the following HTML code to your computer:

HTML source code used to send email

	from:
Subject:
Message: </ textarea> </ td> </ tr> </ table> <input type = "submit" name = "cb_submit" value = "send"> < INPUT TYPE = "reset" name = "cb_reset" value = "clear"> </ form> </ body> </ html> The above program will create an Email basic information (for example: a receiving address, sending address, The subject and content) file. Of course, you can decide the file in accordance with your own needs.</p> <p>This HTML file has two points required: The first point is that the generated file must be sent to the next program that will be introduced. In this example, it is sendmail.jsp, but when you use, this file must be used in the URL in the system instead of it; the second point is that there must be space to allow the user to send email.</p> <p>The second part will analyze the characteristics of JavaMail, preparing for the JSP program in the third part. So let's learn JavaMail.</p></div><div class="text-center mt-3 text-grey"> 转载请注明原文地址:https://www.9cbs.com/read-18364.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="18364" 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>0.034</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 = 'h3gmBCVBV8ANtWMd5jQbpUVRYmXsyVGgMjsPkaUilTqkbHX_2BEMMQWjK_2FLaX8rT45xHIb_2FW20lhUuPFS8V7tfTg_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>