Topic: jsp如何把图片和媒体文件存入oracle中

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1.jsp如何把图片和媒体文件存入oracle中 Copy to clipboard
Posted by: chengbd
Posted on: 2004-06-21 10:54

第一步:建立数据库
create table test_img(
id number(4),
name varchar(20),
img long raw);

第二步:
<html><head><title>添加图片</title></head>
<body>
添加图片<br>
<form method="post" action="insertNews.jsp">
图像ID:<input name="id" size="10">
<br>
选择图像:<input type="file" name="image">
<br>
<input type="submit" value="上传" name="submit" size="25">
<input type="reset" value="清除" name="clear" size="25">
<br>
</form>
</body></html>

第三步:插入数据库(InsertImg.jsp)

<%@ page language="java"%>
<%@ page contentType="text/html;charset=gb2312" %>
<%@ page import="java.util.*" %>
<%@ page import="java.sql.*"%>
<%@ page import="java.text.*"%>
<%@ page import="java.io.*"%>

<%
Class.forName("oracle.jdbc.driver.OracleDriver");
String url="jdbc:oracle:thin:@lubin:1521:b2bdb";
Connection con=DriverManager.getConnection(url,"demo","demo");

//插入数据库
String sql="insert into test_img values (?,?,?)";
//获取传值ID
String id=request.getParameter("id");
//获取image的路径
String kk=request.getParameter("image");
//转换成file格式
File filename=new File(kk);

//将文件的长度读出,并转换成Long型
long l1=filename.length();
int l2=(int)l1;

//以流的格式赋值
FileInputStream fis=new FileInputStream(filename);

PreparedStatement ps =con.prepareStatement(sql);
ps.setString(1,id);
ps.setString(2,filename.getName());
ps.setBinaryStream(3,fis,l2);
ps.executeUpdate();
ps.close();
fis.close();
看不懂请提出来


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