<%@ page import="java.io.FileInputStream" %>
<%@ page import="java.io.OutputStream" %>
<%@ page import="java.io.File" %>

<%
    String fileUrl  =  request.getParameter("fileUrl");//图片真实地址
   
    response.setContentType("text/html; charset=GBK");
    response.setContentType("image/jpeg"); // 设置图片格式格式，这里可以忽略
    FileInputStream fis = null;
    OutputStream os = null;
    String ob = "";
    File photo = null;
    try{
        if(fileUrl !=null && !"".equals(fileUrl)){
            photo = new File(fileUrl);
            if(photo.exists()){
                fis = new FileInputStream(fileUrl);
                os = response.getOutputStream();

                int count = 0;
                byte[] buffer = new byte[1024];
                while ((count = fis.read(buffer)) != -1) {
                    os.write(buffer, 0, count);
                }
            }

        }

    }catch(Exception e){
        e.printStackTrace();
    }finally {
        if (os != null)
            os.close();
        if (fis != null)
            fis.close();
    }
%>