这两天研究了一下图片存储在mysql数据库中，并显示在jsp页面上。
我创建的数据库只有一个表image(id int,image blob)；
<hibernate-mapping><class table=”image”><id column=”id”><generator></generator></id><property type=”blob” column=”image”></property><!– 当实体类中属性与数据库一致时，，可省略type和column –></class></hibernate-mapping>
上传文件页面：upImages.jsp
<%@ page language=”java” import=”java.util.*” pageEncoding=”utf-8″%><%@ taglib prefix = “s” uri=”/struts-tags”%><!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”><html xmlns=”http://www.w3.org/1999/xhtml”><head><meta http-equiv=”Content-Type” content=”text/html; charset=gb2312″ /><title>上传照片</title></head>
<body><s:form action=”ttt/UploadSubmit” enctype=”multipart/form-data”> <s:file label=”请选择要上传的照片” /><!– 似乎必须为upload –> <s:submit value=”上传” /> </s:form>
</body></html>
struts.xml文件：
<?xml version=”1.0″ encoding=”UTF-8″ ?><!DOCTYPE struts PUBLIC “-//Apache Software Foundation//DTD Struts Configuration 2.0//EN” “http://struts.apache.org/dtds/struts-2.0.dtd”>
<struts> <package namespace=”/” extends=”struts-default”> <action> <interceptor-ref name =”defaultStack” /> <interceptor-ref name =”fileUpload”> <param name =”allowedTypes”> image/bmp,image/png,image/gif,image/jpg </param> <param>40480</param> </interceptor-ref> <result name = “input”> /upImages.jsp </result> <result type = “redirect”> </result> <result type = “redirect”> </result> <result> /showPicture.jsp </result> </action> </package>
</struts>显示图片页面：showPicture.jsp
<%@ page language=”java” import=”java.util.*” pageEncoding=”utf-8″%><%String path = request.getContextPath();String basePath = request.getScheme()+”://”+request.getServerName()+”:”+request.getServerPort()+path+”/”;%>
<!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.01 Transitional//EN”><html> <head> <base href=”<%=basePath%>”> <title>显示图片</title> <meta http-equiv=”pragma” content=”no-cache”><meta http-equiv=”cache-control” content=”no-cache”><meta http-equiv=”expires” content=”0″> <meta http-equiv=”keywords” content=”keyword1,keyword2,keyword3″><meta http-equiv=”description” content=”This is my page”><!–<link type=”text/css” href=”styles.css”>–>
</head> <body> <img src=”${sout }” title=”tt”> </body></html>
应下面网友要求，先将action主要代码贴出来
对困难的回答是胜利，对胜利的回答是谦逊。
