上传图片前预览
<%@ page language="java" import="java.util.*" pageEncoding="gbk"%>
<%
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>上传图片，测试</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">
<style type="text/css">
/* 第二种方式 */
#img02
{
filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale);
};
</style>
<script type="text/javascript">
// 第一种方式
function showImage(){
var fileName=document.getElementById("fname").value;
var showFile=document.getElementById("img1");
showFile.innerHTML="<img src=\"file:\\\\" + fileName + "\" width=\"80\" height=\"60\" />";
}
// 第二种方式
function getValue(im){
im.select();
return document.selection.createRange().text;
}
function showImage02(imgFile){
// var fileName=document.getElementById("fname02");
// var fileValue=getValue(fileName);
var file=getValue(imgFile);
var showFile=document.getElementById("img02");
showFile.filters.item("DXImageTransform.Microsoft.AlphaImageLoader").src=file;
showFile.style.width=300;
showFile.style.height=200;
}
</script>
</head>
<body>
<h1 style="color:red">第一种方式，测试，失败</h1>
<form action="" enctype="multipart/form-data" method="post">
上传图片:<input type="file" id="fname" onchange="showImage()"/><br>
<img src="images\111.jpg" id="img1" name="img1"/><br>
<input type="submit"/>
</form>
<hr>
<h1 style="color:red">第二种方式，测试,可以</h1>
<form action="" enctype="multipart/form-data" method="post">
上传图片:<input type="file" id="fname02" onchange="showImage02(this)"/><br>
<div id="img02"></div><br>
<input type="submit"/>
</form>
</body>
</html>