文件上传

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Java EXT JSP SQL HTML

<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page import="java.io.*,java.awt.Image,java.awt.image.*,com.sun.image.codec.jpeg.*,java.sql.*,com.jspsmart.upload.*,java.util.*"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>

<%
SmartUpload mySmartUpload =new SmartUpload();
long file_size_max=4000000;
String fileName2="",ext="",testvar="";
String url="image/"; //应保证在根目录中有此目录的存在（也就是说需要自己建立相应的文件夹）
//初始化
mySmartUpload.initialize(pageContext);
//只允许上载此类文件
try {
mySmartUpload.setAllowedFilesList("jpg,gif");//此处的文件格式可以根据需要自己修改
//上载文件
mySmartUpload.upload();
} catch (Exception e){
%>
<SCRIPT language=javascript>
alert("只允许上传.jpg和.gif类型图片文件");
window.location='upload.jsp';
</script>
<%
}
try{
com.jspsmart.upload.File myFile = mySmartUpload.getFiles().getFile(0);
if (myFile.isMissing()){%>
<SCRIPT language=javascript>
alert("请先选择要上传的文件");
window.location='upload.jsp';
</script>
<%} else{
//String myFileName=myFile.getFileName(); //取得上载的文件的文件名
ext= myFile.getFileExt(); //取得后缀名
int file_size=myFile.getSize(); //取得文件的大小
String saveurl="";
if(file_size<file_size_max){
//更改文件名，取得当前上传时间的毫秒数值
Calendar calendar = Calendar.getInstance();
String filename = String.valueOf(calendar.getTimeInMillis());
saveurl=application.getRealPath("/")+url;
saveurl+=filename+"."+ext; //保存路径
String fileName=filename+"."+ext;
session.setAttribute("picture",fileName);
myFile.saveAs(saveurl,SmartUpload.SAVE_PHYSICAL);
out.print(saveurl);
String ret = "parent.HtmlEdit.focus();";
ret += "var range = parent.HtmlEdit.document.selection.createRange();" ;
ret += "range.pasteHTML('<img src=\"" + request.getContextPath() + "/image/" + filename + "." + ext + "\">');" ;
ret += "alert('上传成功！');";
ret += "window.location='upload.jsp';";
out.print("<script language=javascript>" + ret + "</script>");
}
}
response.sendRedirect("upload.jsp");
}catch (Exception e){
out.print(e.toString());
}
%>
</body>
</html>