解决swfupload items size=0

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swfupload request items.size=0

swfupload v2.2 或者2.5在struts1+spring+hibernate项目中一开始的时候能上传文件，后来就不行了，让我很纳闷，网上也找了很多资料，但是没有提到我遇到的这个问题，

jsp页面：
<%@ page language="java" import="java.util.*" pageEncoding="gbk"%>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html"%>
<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic"%>
<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%>
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn"%>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>
<%
String path = request.getContextPath();
String jsessionid=request.getSession().getId();

%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>

    <title>文件管理</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 href="<%=path %>/swfupload/default.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="<%=path %>/swfupload/swfupload.js"></script>
<script type="text/javascript" src="<%=path %>/swfupload/swfupload.queue.js"></script>
<script type="text/javascript" src="<%=path %>/swfupload/fileprogress.js"></script>
<script type="text/javascript" src="<%=path %>/swfupload/handlers.js"></script>
<link rel="stylesheet" type="text/css" href="<%=path %>/fileui/icon.css">
<link rel="stylesheet" type="text/css" href="<%=path %>/fileui/demo.css">
<script type="text/javascript" src="<%=path %>/fileui/jquery-1.8.0.min.js"></script>

<script type="text/javascript" src="<%=path %>/fileui/js/jquery.pagination.js"></script>
<link type="text/css" href="<%=path %>/fileui/css/default.css" rel="stylesheet" />
<link type="text/css" href="<%=path %>/fileui/css/flexslider.min.css?v=3" rel="stylesheet" />
<link rel="stylesheet" href="<%=path %>/fileui/css/pagination.css" />
<script type="text/javascript">
var swfu;

SWFUpload.onload = function () {
var settings = {
flash_url : "<%=path %>/swfupload/swfupload.swf",
flash9_url : "<%=path%>/swfupload/swfupload_fp9.swf",
//upload_url: "<%=path%>/acl/FileManagerAction.do;jsessionid=<%=jsessionid%>?method=uploadAction",
upload_url: "<%=path%>/servlet/UploadServlet",

post_params: {
"PHPSESSID" : "NONEgfggggg",
"HELLO-WORLD" : "Here I Am",
".what" : "OKAY"
},
file_size_limit : "100 MB",
file_types : "*.*",
file_types_description : "All Files",
file_upload_limit : 100,
file_queue_limit : 0,
custom_settings : {
progressTarget : "fsUploadProgress",
cancelButtonId : "btnCancel"
},
debug: false,

// Button Settings
button_image_url : "<%=path %>/swfupload/XPButtonUploadText_61x22.png",
button_placeholder_id : "spanButtonPlaceholder",
button_width: 61,
button_height: 22,

// The event handler functions are defined in handlers.js
swfupload_preload_handler : swfUploadPreLoad,
swfupload_load_failed_handler : swfUploadLoadFailed,
swfupload_loaded_handler : swfUploadLoaded,
file_queued_handler : fileQueued,
file_queue_error_handler : fileQueueError,
file_dialog_complete_handler : fileDialogComplete,
upload_start_handler : uploadStart,
upload_progress_handler : uploadProgress,
upload_error_handler : uploadError,
upload_success_handler : uploadSuccess,
upload_complete_handler : uploadComplete,
queue_complete_handler : queueComplete // Queue plugin event

};

swfu = new SWFUpload(settings);
}

</script>

<script>
var json ='${fileslist}';

$(function(){
var jsonData = eval(json);
$.each(jsonData,function(i,n){
$("#Searchresult").append("<li><a href='<%=path %>/"+n.filepath+"/"+n.newfilename+"'>"+n.filename+"</a><br />"+n.filesize+"</li>");
});
var num_entries = $("#Searchresult li").length;
var showCount = 10;
$("#total").html("一共有 "+num_entries+" 条数据每页显示"+showCount+"条");
var initPagination = function() {

// 创建分页
$("#Pagination").pagination(num_entries, {
num_edge_entries: 1, //边缘页数
num_display_entries: 6, //主体页数
callback: pageselectCallback,
items_per_page:showCount //每页显示1项
});
}();
function pageselectCallback(page_index, jq){
var max_elem = Math.min((page_index+1) *showCount, num_entries);
$("#htcList").html("");
for(var i=page_index*showCount;i<max_elem;i++){
var new_content = $("#Searchresult li:eq("+i+")").clone();
$("#htcList").append(new_content); //装载对应分页的内容
}
return false;
}
});

//全选
function ckall(ck){
var isAll=ck.checked;
if(isAll){
for(var i=0;i<sysFilesForm.length;i++){
if(sysFilesForm.elements[i].type=='checkbox' && sysFilesForm.elements[i].name=='userCheck'){
sysFilesForm.elements[i].checked=true;
}
}
}else{
for(var i=0;i<sysFilesForm.length;i++){
if(sysFilesForm.elements[i].type=='checkbox' && sysFilesForm.elements[i].name=='userCheck'){
sysFilesForm.elements[i].checked=false;
}
}
}
}

function del(){
alert('批量删除');
}

</script>
</head>

<body>
    <div id="header">
<h1 id="logo">文件上传</h1>
<div id="version"></div>
</div>

<div id="content">

<h2>上传状态栏</h2>
<form id="form1" action="<%=path%>/acl/FileManagerAction.do;jsessionid=<%=jsessionid%>?method=uploadAction" method="post" enctype="multipart/form-data">
<div id="divSWFUploadUI">
<div class="fieldset flash" id="fsUploadProgress">
<span class="legend">上传   队列</span>
</div>
<p id="divStatus">0 Files Uploaded</p>
<p>
<span id="spanButtonPlaceholder"></span>
<input id="btnCancel" type="button" value="Cancel All Uploads" disabled="disabled" style="margin-left: 2px; height: 22px; font-size: 8pt;" />
<br />
</p>
</div>
<noscript>
<div style="background-color: #FFFF66; border-top: solid 4px #FF9966; border-bottom: solid 4px #FF9966; margin: 10px 25px; padding: 10px 15px;">
We're sorry.   could not load. You must have JavaScript enabled to enjoy SWFUpload.
</div>
</noscript>
<div id="divLoadingContent" class="content" style="background-color: #FFFF66; border-top: solid 4px #FF9966; border-bottom: solid 4px #FF9966; margin: 10px 25px; padding: 10px 15px; display: none;">
is loading. Please wait a moment...
</div>
<div id="divLongLoading" class="content" style="background-color: #FFFF66; border-top: solid 4px #FF9966; border-bottom: solid 4px #FF9966; margin: 10px 25px; padding: 10px 15px; display: none;">
is taking a long time to load or the load has failed. Please make sure that the Flash Plugin is enabled and that a working version of the Adobe Flash Player is installed.
</div>
<div id="divAlternateContent" class="content" style="background-color: #FFFF66; border-top: solid 4px #FF9966; border-bottom: solid 4px #FF9966; margin: 10px 25px; padding: 10px 15px; display: none;">
We're sorry.   could not load. You may need to install or upgrade Flash Player.
Visit the <a href="http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash">Adobe website</a> to get the Flash Player.
</div>
</form>
</div>

<div class="demo-info">
<div class="demo-tip icon-tip"></div>
<div>提示:</div>
</div>

<div style="margin:10px 0;">
<a href="#" class="easyui-linkbutton" onclick="open1()">打开</a>
<a href="#" class="easyui-linkbutton" onclick="close1()">关闭</a>
<a href="#" class="easyui-linkbutton" onclick="del()">删除</a>


</div>

<bean:define id="basePage" name="sysFilesForm" />
<html:form action="/acl/FileManagerAction.do" method="post">

<div class="clear"></div>
<div id="model">
<div class="title"><h2>数据列表</h2><a id="total"></a></div>
<div class="clear"></div><ul id="htcList">
</ul>

<div class="clear"></div>
<div id="Pagination" class="pagination"></div>
<ul id="Searchresult" style="display:none;">
</ul>
</div>
</html:form>

</body>
</html>

-----------------------------------------------------------------------------------------

strtus1 后台代码：
public ActionForward uploadAction(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
// System.out.println("xxx");
SysFilesForm sysFilesForm = (SysFilesForm) form;
ISysFilesService sysFilesService = ServiceLoader.getSysFilesService();
try {

request.setCharacterEncoding("UTF-8");
HttpSession session = request.getSession();
session.setAttribute("SESSIONID", session.getId());
FileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(factory);
List<?> items = upload.parseRequest(request);
System.out.println("request:" + request.getParameter("PHPSESSID"));

Date date = new Date();
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
String now = df.format(date);
UserInfo user = (UserInfo) session.getAttribute(UserInfo.USERINFO);
Iterator<?> iter = items.iterator();

while (iter.hasNext()) {
System.out.println(" 进来了");
FileItem item = (FileItem) iter.next();

String fileNames = item.getName();
System.out.println(fileNames);
SysFiles sf = new SysFiles();
if (item.isFormField()) { // 判断是否为普通表单域，还是文件上传表单域。

/*
* String name = item.getFieldName(); String value =
* item.getString(); System.out.println("name = " + name);
* System.out.println("value = " + value);
* System.out.println("/r/n");
*/
} else {
String fieldName = item.getFieldName();

String fileName = item.getName();
System.out.println("文件类型   "
+ fileName.substring(fileName.lastIndexOf('.') + 1,
fileName.length()));
// boolean isInMemory = item.isInMemory();
long sizeInBytes = item.getSize();
getListInSession(request).add(fileName);
getListInSession(request).add(UUID.randomUUID());

// String[] str=fieldName.split("\\.");
// int l=str.length-1;
// System.out.println("文件类型   "+str[l]);
//
System.out.println("fieldName = " + fieldName);
System.out.println("fileName = " + fileName);
// System.out.println("文件存储路径   "+request.getRealPath("/")+"uploadfile/");
// 路径 D:\Program
// Files\apache-tomcat-6.0.18\webapps\rockontrol_oa\UploadFiles\2009042991039312\
String filePath = this.getServlet().getServletContext()
.getRealPath("/")
+ "Files/";
File savePath = new File(filePath);
if (!savePath.exists()) { // 判断是否存在存放目录文件夹
savePath.mkdir();
savePath.createNewFile();
}

item.write(new File(filePath + now + "_" + fileName));

sf.setFilename(fileName);
sf.setFilepath("Files");
// 1mb=1024kb
// 1kb=1024byte(b)
long sizea = item.getSize(); // 上传文件大小
System.out.println("最初的文件大小: " + sizea);
double sizeb = new Double(sizea);
double sizec = sizeb / 1024 / 1024;
String parten = "#.#";
DecimalFormat decimal = new DecimalFormat(parten);
String str = decimal.format(sizeb / 1024 / 1024);
String size = String.valueOf((str)) + "MB";
if (sizec < 1) {
sf.setFilesize(sizea / 1024 + "KB");
} else {
sf.setFilesize(size);
}
System.out.println(item.getName());

// request.getRealPath("/")
// System.out.println("类型:------------"+request.getContentType());FileTypeJudge.getType
sf.setFiletype(FileTypeJudge.getType(
request.getRealPath("/") + "Files/" + now + "_"
+ fileName).toString());
sf.setNewfilename(now + "_" + fileName);
sf.setTime(new Date());
sf.setUploaduser(user.getYhdm());
int id = sysFilesService.save(sf);
if (id <= 0) {
System.out.println(fileName + "保存失败");
log.error(fileName + "保存失败");
} else {
System.out.println(fileName + "保存成功");
}
}
}
System.out.println("-------- final--------");
} catch (Exception ex) {
ex.printStackTrace();
}

return null;
// return findForwardCommon(mapping, form, "index");
}

public ActionForward getResult(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
List list = getListInSession(request);
request.getSession().removeAttribute("_result");

response.setCharacterEncoding("utf-8");
response.getWriter().print(list);
response.flushBuffer();

return null;
}

public List getListInSession(HttpServletRequest request) {
List result = (List) request.getSession().getAttribute("_result");
if (result == null) {
result = new ArrayList();
request.getSession().setAttribute("_result", result);
}
return result;

}

strtuts1 xml:
<action path="/acl/FileManagerAction" type="com.sunland.action.acl.FileManagerAction"
name="sysFilesForm" scope="request" parameter="method">
<forward name="index" path="/WEB-INF/webpages/file/filemanager.jsp"
redirect="false" />

</action>

web.xml里涉及strtus1的：

<servlet>
<servlet-name>action</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>2</param-value>
</init-param>
<init-param>
<param-name>detail</param-name>
<param-value>2</param-value>
</init-param>
<init-param>
<param-name>validate</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>

网上看到struts2遇到这个问题的解决办法是过滤器里把/*改成 *.action
这个我这个虽然是strtus1但是我应该也没有哪里做了全路径拦截

解决办法：

把访问strustaction类改成访问servelt
不访问 strtus的action、

我的servelet是这样写的，当然里面有一些涉及数据库的操作遇到同样问题的人只要参考文件操作的代码就好了

package com.sunland.servelet;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Iterator;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.commons.fileupload.DefaultFileItemFactory;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUpload;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.FileUploadException;

import com.sunland.po.SysFiles;
import com.sunland.service.ISysFilesService;
import com.sunland.service.ServiceLoader;
import com.sunland.util.FileTypeJudge;
import com.sunland.util.UserInfo;

public class UploadFile extends HttpServlet {

/**
*
*/
private static final long serialVersionUID = 1L;

public UploadFile() {
super();
}

public void destroy() {
super.destroy(); // Just puts "destroy" string in log
}

public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request, response);
}

public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding("UTF-8");
ISysFilesService sysFilesService = ServiceLoader.getSysFilesService();
HttpSession session = request.getSession();
session.setAttribute("SESSIONID", session.getId());
UserInfo user = (UserInfo) session.getAttribute(UserInfo.USERINFO);
session.setAttribute("SESSIONID", session.getId());
FileItemFactory factory = new DefaultFileItemFactory();
FileUpload upload = new FileUpload(factory);
Iterator items;
Date date = new Date();
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
String now = df.format(date);
try {
items = upload.parseRequest(request).iterator();
while (items.hasNext()) {
FileItem item = (FileItem) items.next();
if (!item.isFormField()) {
String name = item.getName();
String filetype = name.substring(name.lastIndexOf("."));
//String name = System.currentTimeMillis()+filetype;
// System.out.println(name+"--"+new String(name.getBytes("GBK"),"UTF-8"));
String realpath = request.getRealPath("/Files");
String path = realpath + File.separatorChar +now + "_" + name;
File file = new File(path);
if (!file.exists()) {
File file1 = new File(realpath);
file1.mkdirs();
file.createNewFile();
}else{

file.createNewFile();
}
item.write(file);
response.setContentType("text/html");
response.setCharacterEncoding("GBK");
PrintWriter out = response.getWriter();
out.print("<font size='2'>上传的文件为：" + name + "<br>");
out.print("保存的地址为：" + path + "</font>");

SysFiles sf = new SysFiles();
sf.setFilename(name);
sf.setFilepath("Files");
// 1mb=1024kb
// 1kb=1024byte(b)
long sizea = item.getSize(); // 上传文件大小
System.out.println("最初的文件大小: " + sizea);
double sizeb = new Double(sizea);
double sizec = sizeb / 1024 / 1024;
String parten = "#.#";
DecimalFormat decimal = new DecimalFormat(parten);
String str = decimal.format(sizeb / 1024 / 1024);
String size = String.valueOf((str)) + "MB";
if (sizec < 1) {
sf.setFilesize(sizea / 1024 + "KB");
} else {
sf.setFilesize(size);
}
System.out.println(item.getName());

// request.getRealPath("/")
// System.out.println("类型:------------"+request.getContentType());FileTypeJudge.getType
sf.setFiletype(FileTypeJudge.getType(
request.getRealPath("/") + "Files/" + now + "_"
+ name).toString());
sf.setNewfilename(now + "_" + name);
sf.setTime(new Date());
sf.setUploaduser(user.getYhdm());
int id = sysFilesService.save(sf);
if (id <= 0) {
System.out.println(name + "保存失败");
//log.error(name + "保存失败");
} else {
System.out.println(name + "保存成功");
}
}
}
} catch (FileUploadException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}

public void init() throws ServletException {
}

}

servlet的web.xml配置很简单

<servlet>
  <description>file upload</description>
  <display-name>file upload</display-name>
  <servlet-name>UploadServlet</servlet-name>
  <servlet-class>com.sunland.servelet.UploadFile</servlet-class>
</servlet>

<servlet-mapping>
<servlet-name>UploadServlet</servlet-name>
<url-pattern>/servlet/UploadServlet</url-pattern>
</servlet-mapping>

这样swfupload的就可以上传了另外我改了几个官网的php例子，可以上传批量文件，文件名称是swfobjectdemo，里面的改了可以上传，其他的没改道理一样把upload.php拷贝过去就好了，官网下载下来的是没有保存文件的，有兴趣的朋友可以下载学习。版本是最新的swfupload v2.5

另外这里放了一个纯servlet上的例子这是网上找的，你们可以参考

SWFUpload25.rar (933.3 KB)
下载次数: 15

swfupload.rar (57.6 KB)
下载次数: 8

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