<%@ page contentType="text/html;charset=GBK"%>
<%request.setCharacterEncoding("GBK");%>
<%@ page import="java.util.*" %>
<%@ page import="javazoom.upload.*"%>
<%
    if (MultipartFormDataRequest.isMultipartFormData(request)) {
        MultipartFormDataRequest mrequest = new MultipartFormDataRequest(request);
        Hashtable files = mrequest.getFiles();
        if ((files != null) || (!files.isEmpty())) {
            UploadFile file = (UploadFile) files.get("uploadfile");
            String file_name = file.getFileName();
            PreparedStatement pstmt=con.prepareStatement("insert into blobtest values(1,?)");
            FileInputStream fis = new FileInputStream(file.getInpuStream());            
            //把输入流设置为预处理语句的对象。
            pstmt.setBinaryStream(1, fis, (int)file.length());              
            //执行更新
            pstmt.executeUpdate();                    
            pstmt.close();
                }
        }

------解决方案--------------------
  <%@ page contentType="text/html; charset=UTF-8"%>
 <%@ page import="java.sql.*"%>    
 <%@ page import="java.io.*"%> 
 <jsp:useBean id="sqlConn" scope="application" class="dgeip.OraconnDg"/>
<% 

   Connection con=null;
   Statement stmt=null;
try{
   con=sqlConn.getConnection();
   stmt=con.createStatement();//数据库的连接  
	String sql="select * from dd_model WHERE model_no='07002'";
	ResultSet rs=stmt.executeQuery(sql);
	rs.next();      
   InputStream in=rs.getBinaryStream("shoe_pic");  
   response.reset();    
   response.setContentType("image/jpeg");    
   byte[] b=new byte[1024];  
   int len;    
  while((len=in.read(b))>0)  
	{
       response.getOutputStream().write(b,0,len);  
	}
	out.clear();
   out = pageContext.pushBody();
	        in.close();
			rs.close();
			stmt.close();
			con.close();