後臺代碼用servlet，這樣不依賴框架什麼情況，都可以用。
web.xml添加
<!-- swfupload 上傳 begin --> <servlet> <servlet-name>SWFUploader</servlet-name> <servlet-class>sunfish.upload.SWFUploadServlet</servlet-class> <load-on-startup>0</load-on-startup> </servlet> <servlet-mapping> <servlet-name>SWFUploader</servlet-name> <url-pattern>/upload/SWFUploader</url-pattern> </servlet-mapping> <!-- swfupload 上傳 end -->
java代碼如下：
package sunfish.upload;
import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.sf.json.JSONObject;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.lang.StringUtils;
public class SWFUploadServlet extends HttpServlet {
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String relativePath = request.getParameter("relativePath");
if (StringUtils.isEmpty(relativePath))
relativePath = "upload";
// 設定上傳文件路徑
String currentPath = relativePath + "/";
// 獲得web應用的上傳路徑
String currentDirPath = getServletContext().getRealPath(currentPath);
System.out.println("currentDirPath=" + currentDirPath);
// 判斷文件夾是否存在，不存在則創建
File dirTest = new File(currentDirPath);
if (!dirTest.exists()) {
dirTest.mkdirs();
}
boolean status = false;
String msg = "";
// 使用Apache Common組件中的fileupload進行文件上傳
FileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(factory);
String newFileName = null;
try {
String fileName = null;
FileItem uplFile = null;
List<FileItem> itemList = upload.parseRequest(request);
// Iterator iter = items.iterator();
System.out
.println("enctype=multipart/form-data 參數解析 begin----------");
for (FileItem item : itemList) {
// FileItem item = (FileItem) iter.next();
if (item.isFormField()) {
// 這裏Filename和下面的Filedata都是swflupoad設置的默認設置，夠無聊的話你可以去修改
// 另外不同的瀏覽器傳遞的Filename可能不同，或全路徑，或只是文件名稱
if (item.getFieldName().equals("Filename")) {
fileName = item.getString();
}
} else {
if (item.getFieldName().equals("Filedata")) {
uplFile = (FileItem) item;
}
}
System.out.println(item.getFieldName() + "=" + item);
}// end of for
System.out
.println("enctype=multipart/form-data 參數解析 end----------");
// CEKditor中file域的name值是upload
// 獲取文件名(無擴展名)
newFileName = createNewFileName(fileName);
File pathToSave = new File(currentDirPath, newFileName);
// 如果文件名相同，則重寫且名字
int counter = 1;
while (pathToSave.exists()) {
if (counter == 10) {
throw new IOException("名稱重複：" + counter);
}
newFileName = createNewFileName(fileName);
pathToSave = new File(currentDirPath, newFileName);
counter++;
}
uplFile.write(pathToSave);
status = true;
} catch (Exception ex) {
ex.printStackTrace();
throw new IOException(ex.getMessage());
}
// 以Jsong格式爲輸出信息
// response.setContentType("text/html; charset=UTF-8");
response.setContentType("application/json;charset=UTF-8");
response.setHeader("Pragma", "No-cache");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 0);
Map<String, String> data = new HashMap<String, String>();
data.put("newFileName", newFileName);
data.put("relativePath", relativePath);
String result = JSONObject.fromObject(data).toString();
System.out.println("json:\n" + result);
response.getWriter().write(result);
response.getWriter().flush();
response.getWriter().close();
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request, response);
}
private static String createNewFileName(String oldFileName) {
String ext = getExtension(oldFileName);// 獲取文件擴展名
String newName = UUID.randomUUID().toString() + "." + ext;
return newName;
}
/**
* 獲取擴展名的方法
*/
private static String getExtension(String fileName) {
return fileName.substring(fileName.lastIndexOf(".") + 1);
}
/**
* Servlet初始化方法
*/
public void init() throws ServletException {
}
}
對於上面返回的json數據，你可以在如下handlers.js中的uploadSuccess(file, serverData) 方法裏面獲取：
function uploadSuccess(file, serverData) {
try {
var progress = new FileProgress(file, this.customSettings.progressTarget);
progress.setComplete();
progress.setStatus("上傳成功");
serverData=eval('('+serverData+')'); //string->json
var relativePath=serverData.relativePath;
var newFileName=serverData.newFileName;
alert("serverData.relativePath="+serverData.relativePath);
alert("serverData="+serverData);
//alert(serverData+"上傳成功"+file.name);
progress.toggleCancel(true);//不隱藏刪除按鈕
} catch (ex) {
this.debug(ex);
}
}
前臺頁面，只需要修改一些簡單的地方就可以了，這裏主要修改了upload_url，主要代碼如下：
window.onload = function() {
var settings = {
flash_url : "<%=path%>/js/swfupload/swfupload.swf",
upload_url: "<%=path%>/upload/SWFUploader?relativePath=upload/attachement",
post_params: {"SESSID" : "<%=session.getId()%>"}, // 附加參數,版本2新功能
file_size_limit : "100 MB",
//file_types : "*.*",
//file_types : "*.txt;*.docx;*.doc,*.jpeg;*.png;*.jpg;*.gif",
file_types : "*.txt;*.docx;*.doc,*.jpeg;*.png;*.jpg;*.gif;*.doc;*.ppt;*.xls;*.pps;*.docx;*.pptx;*.xlsx;*.rar;*.zip;*.swf;*.zip;*.zip;*.zip;*.zip;",
file_types_description : "All Files",
file_upload_limit : 2,
file_queue_limit : 0,
custom_settings : {
progressTarget : "fsUploadProgress",
cancelButtonId : "btnCancel"
},
debug: false,
// Button settings
button_image_url: "<%=path%>/images/TestImageNoText_65x29.png",
button_width: "65",
button_height: "29",
button_placeholder_id: "spanButtonPlaceHolder",
button_text: '<span class="theFont">Hello</span>',
button_text_style: ".theFont { font-size: 16; }",
button_text_left_padding: 12,
button_text_top_padding: 3,
// The event handler functions are defined in handlers.js
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>
完整的前臺頁面代碼，可以到這裏去下載：http://demo.swfupload.org/v220/simpledemo/index.php
參考：
http://demo.swfupload.org/v220/index.htm
http://demo.swfupload.org/Documentation/
附件中有代碼：部署到tomcat中後，訪問http://localhost:8080/swfupload_demo/
附件