采用JSP/Servlet上载文件
发布时间：2023-05-13 15:17:28 所属栏目：教程 来源：
导读：使用 jsp/ servlet上载文件正成为一项常用的任务。以下是一个简单的例程，使用了jspsmart的一个免费的组件。你可以在jspsmart站点进行下载。
1. html file
<html>
<body>
<script language="javascr
1. html file
<html>
<body>
<script language="javascr
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使用 jsp/ servlet上载文件正成为一项常用的任务。以下是一个简单的例程，使用了jspsmart的一个免费的组件。你可以在jspsmart站点进行下载。 1. html file <html> <body> <script language="javascript" src="jsfunction.js"> </script> <script language="javascript"> <!-- function checkform(){ if (document.uploadform.adsimage.value==""){ alert("you must choose what image file to upload!"); return false; } document.uploadform.submit(); } function cancelupload(){ window.close(); window.opener.focus(); } //--> </script> <form name="uploadform" method="post" action="uploadimage.jsp" enctype="multipart/form-data" target=_self> <center> <table border="1" width="65%"> <tr> <td colspan=2 nowrap align=center>广告图片上载</td> </tr> <tr> <td width="15%" nowrap >广告图片:</td> <td width="50%" nowrap><input type="file" name="adsimage" size="20"></td> </tr> <tr> <td align="center" colspan=2 > <input type="button" value="upload" > <input type="button" value="cancel" > </td> </tr> </form> </table> <!-- <a href="javascript:window.close();">close this window</a> --> <script language="javascript"> <!-- this.focus(); //--> </script> </body> 2. jsp file <%@ page language="java" import="com.jspsmart.upload.*, java.sql.*,java.util.* "%> <%-- use smartupload bean --%> <jsp:usebean id="mysmartupload" scope="page" class="com.jspsmart.upload.smartupload" /> <% //initialization mysmartupload.init(config); mysmartupload.service(request,response); //set restriction mysmartupload.setallowedfileslist("gif,bmp,jpeg,jpg"); mysmartupload.settotalmaxfilesize(51200); // upload try{ mysmartupload.upload(); } catch(exception e){ out.println("<font color=red>upload file fail!</font> <a href= "javascript:window.history.back();">back</a><br>"); out.println("<ui>notes:</ui>"); out.println("<ul>you must set correct file name.</ul>"); out.println("<ul>you file size must be less than 50k.</ul>"); out.println("<ul>you can only upload .gif .jpeg .jpg and .bmp files.</ul>"); return; } //save file to disk mysmartupload.getfiles().getfile(0).saveas("/" + "filename"); %> 3. servlet file (you can do it yourself) 收集最实用的网页特效代码！ （编辑：聊城站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
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