CREATE   TABLE  photo (
photo_no  int ( 6 ) unsigned  NOT   NULL  auto_increment,
image  blob,
PRIMARY   KEY  (`photo_no`)
) 

<% @ page contentType = " text/html; charset=gbk "   %>
<% @ page  import = " java.io.* " %>
<% @ page  import = " java.sql.*, javax.sql.* "   %>
<% @ page  import = " java.util.* " %>
<% @ page  import = " java.math.* " %>

<%
 String photo_no  =  request.getParameter( " photo_no " );

  // mysql连接 
 Class.forName( " com.mysql.jdbc.Driver " ).newInstance();
 String URL = " jdbc:mysql://localhost:3306/job?user=root&password=111111 " ;
 Connection con  =  DriverManager.getConnection(URL);

  // oracle连接 
  // String URL="jdbc:oracle:thin@localhost:1521:orcl2";
  // user="system";
  // password="manager";
  // Connection con = DriverManager.getConnection(URL,user,password);


  try {
   //  准备语句执行对象
  Statement stmt  =  con.createStatement();

  String sql  =   "  SELECT * FROM PHOTO WHERE photo_no =  " +  photo_no;
  ResultSet rs  =  stmt.executeQuery(sql);
   if  (rs.next())  {
   Blob b  =  rs.getBlob( " photo_image " );
    long  size  =  b.length();
    // out.print(size);
    byte [] bs  =  b.getBytes( 1 , ( int )size);
   response.setContentType( " image/jpeg " ); 
   OutputStream outs  =  response.getOutputStream(); 
   outs.write(bs);
   outs.flush();
   rs.close(); 
  }
   else   {
   rs.close();
   response.sendRedirect( " ./images/error.gif " );
  }
 }
  finally {
  con.close();
 }
%>

< HTML >
< HEAD >
< TITLE >  图像测试  </ TITLE >

</ HEAD >

< BODY >
< TABLE >
< TR >
< TD > 图像测试 </ TD >
</ TR >
< TR >
< TD >< img  src ="show.jsp?photo_no=2" ></ TD >
</ TR >
</ TABLE >

</ BODY >
</ HTML >