ExtJS4多文件上传，带进度条及管理

package web; import java.io.File; import javax.servlet.http.HttpServletResponse; import org.apache.struts2.ServletActionContext; import com.opensymphony.xwork2.ActionSupport; /** * 2013.03.15 * @author houniaofei * @qq:164335636 * */ public class UploadAction extends ActionSupport { private File Filedata; private String FiledataFileName; private String FiledataContentType; //前台用户修改后的文件名 private String newFileName; public File getFiledata() { return Filedata; } public String getFiledataFileName() { return FiledataFileName; } public String getFiledataContentType() { return FiledataContentType; } public void setFiledata(File filedata) { Filedata = filedata; } public void setFiledataFileName(String filedataFileName) { FiledataFileName = filedataFileName; } public void setFiledataContentType(String filedataContentType) { FiledataContentType = filedataContentType; } @Override public String execute() throws Exception { System.out.println(FiledataFileName +"-------------"+newFileName); HttpServletResponse response = ServletActionContext.getResponse(); response.setCharacterEncoding("UTF-8"); response.setContentType("text/xml;charset=utf-8"); response.getWriter().write("{success:true}"); return null; } public String getNewFileName() { return newFileName; } public void setNewFileName(String newFileName) { this.newFileName = newFileName; } }