`

js 实现动态添加多个附件

JavaJSPStrutsHTMLBlog 
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转载：http://hi.baidu.com/javajavajava/blog 
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<%
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>My JSP 'upload.jsp' starting page</title>
    
    <script type="text/javascript">
        function AddMore(){
            var more = document.getElementById("file");
            var br = document.createElement("br");
            var input = document.createElement("input");
            var button = document.createElement("input");
            
            input.type = "file";
            input.name = "file";
            
            button.type = "button";
            button.value = "删除";
            
            more.appendChild(br);
            more.appendChild(input);
            more.appendChild(button);
            
            button.onclick = function(){
                more.removeChild(br);
                more.removeChild(input);
                more.removeChild(button);
            }; 
        }
    </script>
</head>

<body>
    <s:form action="upload" method="post" theme="simple" enctype="multipart/form-data">
    <table border="1" width="50%">
        <tr>
            <td>用户名:</td>
            <td><s:textfield name="username" label="用户名"></s:textfield></td>
        </tr>
        <tr>
            <td>附件:</td>
            <td id="file">
            <s:file name="file" label="文件"></s:file>
            <input type="button" value="增加附件" onclick="AddMore()">
            </td>
        </tr>
        <tr>
            <td colspan="2" align="center">
            <s:submit value="提交" ></s:submit></td>
        </tr>
    </table>    
    </s:form>
</body>
</html>
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