Third, the file upload (1) Form form for uploading files, two requirements: 1. Method Apply POST, Method = "POST". 2, increase the attribute: encType = "multipart / form-data" Below is an example of a Form form for uploading files:
Page source code as follows: <- filename:! Upload.html Author: vertical and horizontal software production center rain also odd (zhsoft88@sohu.com) -> file upload </ title> <meta http-equiv =" content-type "content =" text / html; charSet = GB2312> </ head> <body> < P> </ p> <p align = "center"> Upload file selection </ p> <form method = "post" action = "jsp / do_upload.jsp" encty = "multipart / form-data"> <input Type = "hidden" name = "test" value = "good"> <table width = "75%" border = "1" align = "center"> <TR> <TD> <div align = "center"> 1, <Input Type = "file" name = "file1" size = "30"> </ div> <TD> <div align = "center"> 2, <input type = "File" name = "file2" size = "30"> </ div> <td> <div align = "center"> 3, <input type = "file" name = "File3" Size = "30"> </ div> <td> <div align = "center"> 4, <input type = "file" name = "file4" Size = "30"> </ div> </ td> <div align = "center"> <input type = "name =" Value = "uploaded it! "> </ div> </ td> </ tr> </ table> </ form> </ body> </ html> 2, upload processing page do_upload.jsp This page performs file upload operations. The usage of the upload method is described in detail in the page source code, and details will not be described here.</p> <p>Page source code as follows: <% - filename: do_upload.jsp Author: vertical and horizontal software production center rain also odd (zhsoft88@sohu.com) -%> <% @ page contentType = "text / html; charset = gb2312" language = "Java" Import = "java.util. *, com.jspsmart.upload. *" ErrorPage = ""%> <html> <head> <title> file upload processing page </ title> <meta http-equiv = "Content-Type" Content = "Text / HTML; Charset = GB2312"> </ head> <body> <% // New a SmartUPload Object Smartupload Su = New SmartUPload (); // Upload Initialization Su.initialize (PageContext) ; // Set up the upload limit // 1. Restrict the maximum length of each upload file. // Su.setMaxFileSize (10000); // 2. Restrict the length of the total upload data. // Su.SettotalMaxFileSize (20000); // 3. Set the file that allows upload (by extension restrictions), only the DOC, TXT file is allowed. // Su.setAllowedFileSlist ("DOC, TXT"); // 4. Set the file that prohibits uploading (by extension restrictions), prohibiting uploading files with EXE, BAT, JSP, HTM, HTML extensions and no expansion Name file. // Su.SetdeniedFileSlist ("EXE, BAT, JSP, HTM, HTML,"); // Upload file Su.upload (); // Save all of the upload files to the specified directory int count = Su.Save ("/ UPLOAD "); Out.println (Count " file upload success! <br> "); // Use the Request object to obtain parameters of parameters Out.println (" test = " su.getRequest (). getParameter (" test " ) "<BR> <BR>"); // upload files one by one to extract information, and save the file.</p></div><div class="text-center mt-3 text-grey"> 转载请注明原文地址:https://www.9cbs.com/read-130020.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="130020" 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>0.041</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 = 'quGw67EdaSBJlrmf8vngiwBZbArXRGGiHeeeGMpLaQS2PoiUbYSThCCwIRcoLedzk49qm3it1Wvns6NE'; 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>
