jsp SmartUpload 实现上传功能代码

2020-07-27 21:41:13

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来源：转载

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复制代码代码如下:

<%@ page contentType="text/html;charset=gb2312"%> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"> 
</head> 
<body leftmargin="0" topmargin="0" bgcolor="#ffffff"> 
<form action="upfilea.jsp" method="post" name="form1" 
enctype="multipart/form-data"> 
<input name="FileName" type="FILE" size="30"> 
<input type="submit" name="Submit" value="上传" > 
</form> 
</body> 
</html> 
上传页面 
<%@ page contentType="text/html;charset=gb2312"%> 
<%@ page import="java.sql.*"%> 
<%@ page import="java.util.*"%> 
<%@ page import="java.io.*"%> 
<%@ page import="com.jspsmart.upload.*" %> 
<% 
//实例化上载bean 
com.jspsmart.upload.SmartUpload mySmartUpload=new 
com.jspsmart.upload.SmartUpload(); 
//初始化 
mySmartUpload.initialize(pageContext); 
//设置上载的最大值 
mySmartUpload.setMaxFileSize(500 * 1024*1024); 
//上载文件 
mySmartUpload.upload(); 
//循环取得所有上载的文件 
for (int i=0;i <mySmartUpload.getFiles().getCount();i++) 
{ 
//取得上载的文件 
com.jspsmart.upload.File myFile = mySmartUpload.getFiles().getFile(i); 
if (!myFile.isMissing()) 
{ 
//取得上载的文件的文件名 
String myFileName=myFile.getFileName(); 
//取得不带后缀的文件名 
String suffix=myFileName.substring(0,myFileName.lastIndexOf('.')); 
//取得后缀名 
String ext= mySmartUpload.getFiles().getFile(0).getFileExt(); 
if(!(ext.equals("gif")||ext.equals("jpg")||ext.equals("wmv") 
||ext.equals("avi")||ext.equals("swf"))){ 
out.print(" <script language='javascript'><!-- 
alert('上传失败，图片格式为 
GIF或者JPG，视频格式为WMV或者AVI，falsh为swf请重试！'); 
// --></script>"); 
out.print(" <script language='javascript'><!-- 
window.location.href = 
'uploadb.jsp' 
// --></script>"); 
}else 
{ 
//取得文件的大小 
int fileSize=myFile.getSize(); 
//保存路径 
String aa=getServletContext().getRealPath("/")+"upload/"; 
Random mynum=new Random(1); 
int num=mynum.nextInt(10000); 
num=(int)Math.random()*10000; 
java.text.SimpleDateFormat formatter = new java.text.SimpleDateFormat 
("yyMMddhhmmss"); 
java.util.Date date=new java.util.Date(); 
String days=formatter.format(date); 
days=days+num; 
//System.out.println("days="+days); 
//System.out.println("pre="+pre); 
//取得别的参数 
request.setCharacterEncoding("GB2312"); 
/*if(request.getSession(true).getAttribute("id")!="") 
{ 
id = request.getSession(true).getAttribute("id").toString(); 
} 
myFile.saveAs("upload/"+days+myFile.getFileName()); 
String pic="upload/"+days+myFile.getFileName();*/ 
myFile.saveAs("upload/"+days+"6."+ext); 
String pic="upload/"+days+"6."+ext; 
session.setAttribute("pic",pic); 
out.print(" <script 
language='javascript'><!-- 
parent.heheForm.pic.value='"+pic+"'; 
// --></script>"); 
out.print(" <script language='javascript'><!-- 
alert('上传成功'); 
// --></script>"); 
//下面的是将上载的文件保存到数据库中 
//将文件保存在服务器端 
//将文件写到数据库中 
//response.sendRedirect("uploada.jsp"); 
}}else{out.print(" <script language='javascript'><!-- 
alert('文件上传失 
败！');location='' 
// --></script>");}} 
//与前面的if对应 
%> 
<html> 
<head> </head> 
<body leftmargin="0" topmargin="0" bgcolor="#ffffff"> 
<form> 
<input type="text" name="pic" value=" <%=session.getAttribute("pic")%>" 
size="30"> 
</form> 
</body> 
</html> 