官方的版本中隻有php的版本，從網上找瞭其他人寫的內容，自己實現瞭一個servlet的版本，
但是又出現另一個問題，如何向後臺傳遞參數的問題，現在整理出來，以備忘。
問題：
1、編碼問題，做的示例用的gb18030，所以後臺很多的轉碼問題，采用UTF-8，能好一些，
2、傳遞中文問題，最好還是前臺進行encoding，(encodeURI)，後臺進行解析取出來吧－－未測試
上代碼：
一、前臺頁面index.jsp
001
<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
002
003
<%
004
String path = request.getContextPath();
005
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
006
%>
007
008
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
009
<html>
010
<head>
011
<base href="<%=basePath%>">
012
013
<title>文件上傳swfupload使用</title>
014
<meta http-equiv="pragma" content="no-cache">
015
<meta http-equiv="cache-control" content="no-cache">
016
<meta http-equiv="expires" content="0">
017
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
018
<meta http-equiv="description" content="This is my page">
019
<!–
020
<link rel="stylesheet" type="text/css" href="styles.css">
021
–>
022
<link href="<%=basePath%>css/default.css" rel="stylesheet" type="text/css" />
023
<script type="text/javascript" src="<%=basePath%>swfupload/swfupload.js"></script>
024
<script type="text/javascript" src="<%=basePath%>swfupload/swfupload.queue.js"></script>
025
<script type="text/javascript" src="<%=basePath%>js/fileprogress.js"></script>
026
<script type="text/javascript" src="<%=basePath%>js/handlers.js"></script>
027
028
029
<script type="text/javascript">
030
var swfu;
031
032
SWFUpload.onload = function () {
033
var settings = {
034
flash_url : "<%=basePath%>swfupload/swfupload.swf",
035
flash9_url : "<%=basePath%>swfupload/swfupload_fp9.swf",
036
upload_url: "<%=basePath%>upload",
037
post_params: {
038
"hello" : "Here I Am",
039
"name" : "張三"
040
},
041
file_size_limit : "100 MB",
042
file_types : "*.*",
043
file_types_description : "All Files",
044
file_upload_limit : 100,
045
file_queue_limit : 0,
046
custom_settings : {
047
progressTarget : "fsUploadProgress",
048
cancelButtonId : "btnCancel"
049
},
050
debug: true,
051
use_query_string : true,//要傳遞參數，必須配置,可以從後臺取到參數,應該還有其他方式，如post方式，未瞭解
052
053
// Button Settings
054
button_image_url : "<%=basePath%>images/TestImageNoText_65x29.png",
055
button_placeholder_id : "spanButtonPlaceholder",
056
button_width: 61,
057
button_height: 22,
058
button_text: '瀏覽',
059
button_text_style: ".spanButtonPlaceholder { font-size: 12; }",
060
button_text_left_padding: 12,
061
button_text_top_padding: 3,
062
063
// The event handler functions are defined in handlers.js
064
//swfupload_preload_handler : preLoad,
065
//swfupload_load_failed_handler : loadFailed,
066
file_queued_handler : fileQueued,
067
file_queue_error_handler : fileQueueError,
068
file_dialog_complete_handler : fileDialogComplete,
069
upload_start_handler : uploadStart,
070
upload_progress_handler : uploadProgress,
071
upload_error_handler : uploadError,
072
upload_success_handler : uploadSuccess,
073
upload_complete_handler : uploadComplete,
074
queue_complete_handler : queueComplete // Queue plugin event
075
076
};
077
078
swfu = new SWFUpload(settings);
079
}
080
</script>
081
</head>
082
<body>
083
<p class="fieldset flash" id="fsUploadProgress">
084
<span class="legend">文件列表：</span>
085
</p>
086
<p id="pStatus">上傳瞭0個文件</p>
087
088
<p class="flash" id="fsUploadProgress">
089
</p>
090
<p style="padding-left: 5px;">
091
<span id="spanButtonPlaceholder"></span>
092
<input id="btnCancel" type="button" value="取消" onclick="cancelQueue(upload);" disabled="disabled" style="margin-left: 2px; height: 22px; font-size: 8pt;" />
093
</p>
094
095
<!– 上傳文件列表 –>
096
<p class="fileList" id="fileList">
097
</p>
098
099
</body>
100
</html>
二、前臺接收後臺返回數據的位置 －－handler.js-隻需要找到該位置，進行修改就可以瞭
01
function uploadSuccess(file, serverData) {
02
try {
03
var progress = new FileProgress(file, this.customSettings.progressTarget);
04
progress.setComplete();
05
progress.setStatus("上傳完成.");
06
progress.toggleCancel(false);
07
alert(serverData);
08
09
//後臺傳遞回來的內容
10
var serdata = document.getElementById("fileList");
11
serdata.innerHTML = serverData;
12
13
} catch (ex) {
14
this.debug(ex);
15
}
16
}
三、後臺servlet-Upload.java，下邊隻列出瞭用到的doPost()方法，其他內容都沒有變化
01
public void doPost(HttpServletRequest request, HttpServletResponse response)
02
throws ServletException, IOException {
03
04
//接收參數
05
String hello = request.getParameter("hello");
06
String name = request.getParameter("name");
07
name = new String(name.getBytes("ISO-8859-1"),"UTF-8");//字符編碼問題，可以通過前臺encoding後臺再解析
08
09
System.out.println("接收參數，hello="+hello+",name="+name);
10
11
String path1 = request.getRequestURI()+"/files";
12
System.out.println("____________request.getRequestURI():"+path1);
13
String path2 = request.getSession().getServletContext().getRealPath("/");
14
System.out.println("_________path2:"+path2);
15
16
List<FileEntity> fileList;
17
fileList = (List)request.getAttribute("fileList");
18
if(fileList==null)
19
fileList = new ArrayList<FileEntity>();
20
21
//接收上傳文件
22
String uploadSign = request.getParameter("upload");
23
String rootPath = request.getParameter("rootPath");
24
String path = request.getParameter("path");
25
if(rootPath == null) rootPath = "";
26
rootPath = rootPath.trim();
27
if(rootPath.equals("")){
28
//rootPath = application.getRealPath("/swfupload/files");//自由修改處二：指定服務器固定文件
29
rootPath = path2+"/files";
30
}
31
32
if(path == null) {
33
path = rootPath;
34
}else{
35
path = new String(Base64.decodeBase64(path.getBytes()));
36
}
37
System.out.println(path+"…path.getBytes():"+path.getBytes());
38
uploadSign = "1";
39
//上傳操作
40
if(null != uploadSign && !"".equals(uploadSign)){
41
FileItemFactory factory = new DiskFileItemFactory();
42
ServletFileUpload upload = new ServletFileUpload(factory);
43
//upload.setHeaderEncoding("UTF-8");
44
try{
45
List items = upload.parseRequest(request);
46
if(null != items){
47
Iterator itr = items.iterator();
48
int i = 0;
49
while(itr.hasNext()){
50
FileItem item = (FileItem)itr.next();
51
FileEntity file = new FileEntity();//_____________________
52
if(item.isFormField()){
53
continue;
54
}else{
55
//自由修改處三：可修改上傳後的文件命名方式
56
SimpleDateFormat sdf=new SimpleDateFormat("yyyyMMddkkmmss");//以當前精確到秒的日期為上傳的文件的文件名
57
SimpleDateFormat sdd=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
58
String type = item.getName().split("\\.")[1];//獲取文件類型
59
60
System.out.println("——————————————————文件名稱："+item.getName());
61
System.out.println("從GBK轉到UTF-8輸出："+new String(item.getName().getBytes("GBK"),"UTF-8"));
62
63
File savedFile = new File(path,sdf.format(new Date())+"."+type);
64
65
//把文件放到列表中，在前臺顯示
66
System.out.println("__________________服務器上對應的文件名稱："+sdf.format(new Date())+"."+type);
67
System.out.println("__________________完整路徑："+path1+"/"+sdf.format(new Date())+"."+type);
68
file.setId(sdf.format(new Date()));
69
file.setDate(sdd.format(new Date()));
70
file.setFilename(item.getName());
71
file.setFilepath(path1+"/"+sdf.format(new Date())+"."+type);
72
file.setFilesize(item.getSize()+"");
73
file.setFiletype(type);
74
file.setMark("0");
75
fileList.add(file);
76
77
item.write(savedFile);
78
}
79
}
80
}
81
}catch(Exception e){
82
e.printStackTrace();
83
}
84
}
85
86
87
response.setContentType("text/html");
88
response.setCharacterEncoding("UTF-8");
89
PrintWriter out = response.getWriter();
90
if(fileList!=null){
91
for(int i=0;i<fileList.size();i++){
92
FileEntity file = (FileEntity)fileList.get(i);
93
//out.println("文件："+ new String(file.getFilename().getBytes("GBK"),"UTF-8")+"，文件路徑："+file.getFilepath());
94
out.println("文件："+ new String(file.getFilename().getBytes("GBK"),"UTF-8")+"，上傳成功！");
95
}
96
}
97
}
四、自定義的一個文件類FileEntity.java，測試時全部用的String類型
01
package com.swfupload.entity;
02
03
04
public class FileEntity {
05
private String id;
06
private String belong;
07
private String filename;
08
private String filepath;
09
private String filetype;
10
private String filesize;
11
private String date;
12
private String mark;
13
14
public FileEntity(){}
15
16
public String getId() {
17
return id;
18
}
19
public void setId(String id) {
20
this.id = id;
21
}
22
public String getBelong() {
23
return belong;
24
}
25
public void setBelong(String belong) {
26
this.belong = belong;
27
}
28
public String getFilename() {
29
return filename;
30
}
31
public void setFilename(String filename) {
32
this.filename = filename;
33
}
34
public String getFilepath() {
35
return filepath;
36
}
37
public void setFilepath(String filepath) {
38
this.filepath = filepath;
39
}
40
public String getFiletype() {
41
return filetype;
42
}
43
public void setFiletype(String filetype) {
44
this.filetype = filetype;
45
}
46
public String getFilesize() {
47
return filesize;
48
}
49
public void setFilesize(String filesize) {
50
this.filesize = filesize;
51
}
52
public String getDate() {
53
return date;
54
}
55
public void setDate(String date) {
56
this.date = date;
57
}
58
public String getMark() {
59
return mark;
60
}
61
public void setMark(String mark) {
62
this.mark = mark;
63
}
64
65
public static void main(String[] agrs){
66
String str="";
67
System.out.println(str);
68
}
69
}
作者：itwarcraft