struts 上传附件

<html:file property="file1" name="htfjList" styleId="file1"
								indexed="true" style="width:95%"
								onkeydown="event.returnValue=false;"></html:file>

import org.apache.struts.upload.FormFile;
// 文件
	private FormFile file1;

fjPO = new FjPO();
htfjPO = (FjPO) fjList.get(i);
basefjPO = new BasefjPO();
// 将页面的PO属性和BasePO属性对拷
BeanUtils.copyProperties(basefjPO, fjPO);
FormFile file1 = fjPO.getFile1();
if (file1 != null && file1.toString() != "") {
// 上传路径
String dir = request.getSession(true).getServletContext().getRealPath(
"/"+ Constants.LJ);
File uploadPath = new File(dir);
// 如果路径不存在,则创建路径
if (!uploadPath.exists()) {
uploadPath.mkdir();
}
String filename = file1.getFileName().toString();
String fileExtName = filename.substring(filename.lastIndexOf("."), filename.length());
						
OutputStream fos = null;
fos = new FileOutputStream(dir+"\\"+file1.getFileName());
fos.write(file1.getFileData(), 0, file1.getFileSize());
fos.flush();
fos.close();
/*
//优化
InputStream is=file1.getInputStream();
int x=0;
        //优化流处理过程
        byte[] buffer = new byte[8192];
        while((x=is.read(buffer, 0, 8192))!=-1)
        {
            fos.write(buffer,0,x);
        } 
*/