linux下swfupload上传，fileOut = new FileOutputStream(fileName);的问题
代码如下：
得到的文件size是0
当fileOut.write(dataBytes,startPos,(endPos - startPos));
改成fileOut.write(dataBytes)
时，文件size不在是0但，上传的xls成乱码了，
谁有这方面的经验没？
<%@ page contentType="text/html; charset=UTF-8" language="java" import="java.sql.*" errorPage="" %><%@ page import="java.io.*"%> <%@ page import="java.util.*"%> <%@ page import="javax.servlet.*"%> <%@ page import="javax.servlet.http.*"%> <html> <head> <title> upFile </title> </head> <body bgcolor="#ffffff"> <center> <%String rootPath;DataInputStream in = null;FileOutputStream fileOut = null;String realPath = request.getRealPath("/");rootPath = realPath + "/upload/"; String contentType = request.getContentType(); try{ if(contentType.indexOf("multipart/form-data") >= 0){in = new DataInputStream(request.getInputStream()); int formDataLength = request.getContentLength(); byte dataBytes[] = new byte[formDataLength]; int byteRead = 0; int totalBytesRead = 0;while(totalBytesRead < formDataLength){byteRead = in.read(dataBytes,totalBytesRead,formDataLength); totalBytesRead += byteRead; } String file = new String(dataBytes);String saveFile = file.substring(file.indexOf("filename="") + 10); saveFile = saveFile.substring(0,saveFile.indexOf("\n")); saveFile = saveFile.substring(saveFile.lastIndexOf("\") + 1,saveFile.indexOf(""")); int lastIndex = contentType.lastIndexOf("="); String boundary = contentType.substring(lastIndex + 1,contentType.length()); String fileName = rootPath + saveFile;int pos; pos = file.indexOf("filename=""); pos = file.indexOf("\n",pos) + 1; pos = file.indexOf("\n",pos) + 1; pos = file.indexOf("\n",pos) + 1; int boundaryLocation = file.indexOf(boundary,pos) - 4; int startPos = ((file.substring(0,pos)).getBytes()).length;int endPos = ((file.substring(0,boundaryLocation)).getBytes()).length; File checkFile = new File(fileName); if(checkFile.exists()){return;} File fileDir = new File(rootPath); if(!fileDir.exists()){ fileDir.mkdirs(); }fileOut = new FileOutputStream(fileName);fileOut.write(dataBytes,startPos,(endPos - startPos)); fileOut.close(); }else{ String content = request.getContentType(); } }catch(Exception ex){ throw new ServletException(ex.getMessage()); } %> </center> </body> </html>