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>> 使用JSP/Servlet上载文件 [<a href=http://www.jsp001.com/forum/showthread.php?goto=newpost&threadid=65>查看别人的评论</a>]<br>
<hr><p>由 webmaster 发布于: 2001-01-20 16:42</p><p> </p><p>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。 <br><br>1. Html File <br><html> <br><body> <br><script LANGUAGE="javascript" SRC="JSFunction.js"> <br></script> <br><script language="JavaScript"> <br><!-- <br>function checkForm(){ <br><br>if (document.uploadform.adsImage.value==""){ <br>alert("You must choose what image file to upload!"); <br>return false; <br>} <br>document.uploadform.submit(); <br>} <br>function cancelUpload(){ <br>window.close(); <br>window.opener.focus(); <br>} <br>//--> <br></script> <br><form name="uploadform" method="post" <br>action="uploadImage.jsp" ENCTYPE="multipart/form-data" <br>target=_self> <br><center> <br><table border="1" width="65%"> <br><tr> <br><td colspan=2 nowrap align=center>广告图片上载</td> <br><br></tr> <br><tr> <br><td width="15%" nowrap >广告图片:</td> <br><td width="50%" nowrap><input type="file" <br>name="adsImage" size="20"></td> <br></tr> <br><tr> <br><td align="center" colspan=2 > <br><input type="button" value="upload" onclick="return <br>checkForm();" > <br>&nbsp;&nbsp;&nbsp; <br><input type="button" value="Cancel" onclick="return <br>cancelUpload();"> <br></td> <br><br></tr> <br></form> <br></table> <br><!-- <br><a href="Javascript:window.close();">close this window</a> <br>--> <br><script language="JavaScript"> <br><!-- <br>this.focus(); <br>//--> <br></script> <br></body> <br><br>2. JSP File <br><%@ page language="java" import="com.jspsmart.upload.*, <br>java.sql.*,java.util.* "%> <br><%-- use SmartUpload bean --%> <br><jsp:useBean id="mySmartUpload" scope="page" <br>class="com.jspsmart.upload.SmartUpload" /> <br><br><% <br><br>//Initialization <br>mySmartUpload.init(config); <br>mySmartUpload.service(request,response); <br><br>//Set Restriction <br>mySmartUpload.setAllowedFilesList("gif,bmp,jpeg,jpg"); <br>mySmartUpload.setTotalMaxFileSize(51200); <br><br><br><br>// Upload <br>try{ <br>mySmartUpload.upload(); <br>} <br>catch(Exception e){ <br>out.println("<font color=red>Upload File Fail!</font> <br><a href= <br>\"JavaScript:window.history.back();\">back</a><br>"); <br>out.println("<UI>Notes:</UI>"); <br><br>out.println("<UL>You must set correct File <br>Name.</UL>"); <br>out.println("<UL>You file size must be less than <br>50K.</UL>"); <br>out.println("<UL>You can only upload .Gif .jpeg .jpg and <br>.bmp files.</UL>"); <br><br>return; <br><br>} <br>//save file to disk <br>mySmartUpload.getFiles().getFile(0).saveAs("/" + <br>"FileName"); <br><br> <br><br>%> <br><br><br><br>3. Servlet File (you can do it yourself) <br><br><br>资料来源：碧波山庄Visual Basic <a href="http://ctsvb.126.com" target=_blank>http://ctsvb.126.com</a> <br></p></td>
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