请教一个structs2批量上传例子？

现在工作需要用到批量上传？希望大家给个例子看下

upload.jsp
<%@ page language="java" contentType="text/html; charset=GB18030"
pageEncoding="GB18030"%>

<%@ taglib prefix="s" uri="/struts-tags"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

Insert title here

    <script type="text/javascript">

function addMore()
{
var td = document.getElementById("more");

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 = "Remove";

button.onclick = function()
{
    td.removeChild(br);
    td.removeChild(input);
    td.removeChild(button);
}

td.appendChild(br);
td.appendChild(input);
td.appendChild(button);

}

</head>

<body>

    <table align="center" width="50%">
        <tr>
            <td>

                <s:fielderror cssStyle="color:red" />

            </td>
        </tr>
    </table>


    <s:form action="fileupAction" theme="simple"
        enctype="multipart/form-data" method="post">
        <table align="center" width="50%" border="1">
            <tr>
                <td>
                    username
                </td>
                <td>
                    <s:textfield name="username"></s:textfield>
                </td>
            </tr>

            <tr>
                <td>
                    password
                </td>
                <td>
                    <s:password name="password"></s:password>
                </td>
            </tr>


            <tr>
                <td>
                    file
                </td>

                <td id="more">
                    <s:file name="file" disabled="false"></s:file>
                    <input type="button" value="Add More.." onclick="addMore()">
                </td>
            </tr>

            <tr>
                <td>
                    <s:submit value=" submit "></s:submit>
                </td>

                <td>
                    <s:reset value=" reset "></s:reset>
                </td>
            </tr>
        </table>
    </s:form>
</body>

工作就不要偷懒
google一下多的是

struts.xml

    <action name="fileupAction" class="test.actions.FileupAction">
        <interceptor-ref name="fileUpload">
            <param name="allowedTypes">
                image/bmp,image/png,image/gif,image/jpeg,application/zip
            </param>
            <param name="maximumSize">200000000</param>
        </interceptor-ref>
        <interceptor-ref name="defaultStack"></interceptor-ref>
        <param name="savePath">/upload</param>
        <result name="success">/upload_result.jsp</result>
        <result name="input">/upload.jsp</result>
    </action>

package test.actions;

import java.io.*;

import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class FileupAction extends ActionSupport
{
private File[] file;
private String[] fileContentType;
private String[] fileFileName;
private String savePath;

public String getSavePath()
{
    return savePath;
}

public void setSavePath(String savePath)
{
    this.savePath = "d:" + savePath;
}

public File[] getFile()
{
    return file;
}

public void setFile(File[] file)
{
    this.file = file;
}

public String[] getFileContentType()
{
    return fileContentType;
}

public void setFileContentType(String[] fileContentType)
{
    this.fileContentType = fileContentType;
}

public String[] getFileFileName()
{
    return fileFileName;
}

public void setFileFileName(String[] fileFileName)
{
    this.fileFileName = fileFileName;
}

@Override
@SuppressWarnings("unchecked")
public String execute() throws Exception
{
    System.out.println(savePath);
    ActionContext.getContext().getSession().put("savePath", savePath);
    String fileName = "[";
    if (file == null)
    {
        this.addFieldError("file", this.getText("file.null"));
        return INPUT;
    }
    for (int i = 0; i < file.length; i++)
    {
        File uploadFile = file[i];
        InputStream is = new FileInputStream(uploadFile);
        OutputStream os = new FileOutputStream(new File(savePath,
                fileFileName[i]));
        byte[] buffer = new byte[1024];
        int length = 0;
        while ((length = is.read(buffer)) > 0)
        {
            os.write(buffer, 0, length);
        }
        fileName = fileName + fileFileName[i];
        is.close();
        os.close();
    }
    fileName = fileName + "]";
    ActionContext.getContext().getSession().put("uploadFileName", fileName);
    return SUCCESS;
}

}

struts.xml

在struts.xml中可以添加下面这段代码，来改变上传文件大小的限制

我自己么有加注释，希望你能看懂