upload.jsp

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<%-- 
    Document   : upload
    Created on : 2008-7-13, 19:33:49
    Author     : zhlm
--%>

<%@ page language="java" contentType="text/html;charset=utf-8"%>
<%@ page import="java.io.*, java.util.*, java.awt.Image, java.awt.image.*,ArticleSharing.DBTools"%>
<%@ page import="com.jspsmart.upload.*"%>
<%@ page import=" com.sun.image.codec.jpeg.*"%>
<%
 SmartUpload smartUpload = new SmartUpload();
 long fileMaxSize = 4000000;
 String ext = "";
 String url = "/uploadfile/images/";
 smartUpload.initialize(pageContext);
 try{
  smartUpload.setAllowedFilesList("jpg,gif");
  smartUpload.upload();
 }catch (Exception e){
%>
<script language="javascript">
 alert("上传图片格式不正确");
 window.location.href="upload.html";
</script>
<%
 } 
 try{
  com.jspsmart.upload.SmartFile file = smartUpload.getFiles().getFile(0);
  if (file.isMissing()){
%>
<script language="javascript">
 alert("请选定上传图片");
  window.location.href="upload.html";
</script>
<%
  }else {
   String fileName = file.getFileName();
   ext = file.getFileExt();
   long fileSize = file.getSize();
   String saveUrl = "";
   if (fileSize > fileMaxSize){
%>
<script language="javascript">
 alert("上传图片必须小于"+<%=fileMaxSize/1000%>+"K");
  window.location.href="upload.html";
</script>
<%
   }else{
    fileName = (String)session.getAttribute("image_id");
    saveUrl = url + fileName + "." + ext;
    file.saveAs(saveUrl, SmartUpload.SAVE_VIRTUAL);
    DBTools tool = new DBTools();
    tool.excuteUpdate("update users set photo_path = '" + saveUrl +  "' where user_id = " +  
            Integer.parseInt(fileName));

%>
<script language="javascript">
 alert('上传成功');
  window.location.href="homepage.jsp";
</script>
<%
   }
  } 
 }catch (Exception e){
  e.toString();
 }
%>