使用Apache fileUpload库上传文件（支持多个文件）

import org.apache.commons.fileupload.FileItem;

public String upload(HttpServletRequest request,

HttpServletResponse response) throws Exception {

String fullFileName = null;

DiskFileUpload disk = new DiskFileUpload();

try {

List<FileItem> files = (List<FileItem>) disk.parseRequest(request);

for (FileItem item : files) {

fullFileName = item.getName();

if(fullFileName == null) {

System.out.println("fullFileName not existed.");

continue;

}

String fileName1 = fullFileName.substring(fullFileName.lastIndexOf("\\")+1);

File  file1 = new File(realPath,fileName1);

file1.getParentFile().mkdirs();

file1.createNewFile();

InputStream ins = item.getInputStream();

OutputStream ous = new FileOutputStream(file1);

try{

byte[] buffer = new byte[1024];

int len = 0;

while((len = ins.read(buffer)) > -1)

ous.write(buffer,0,len);

}finally{

ous.close();

ins.close();

}

}

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

return "redirect:item.do";

}

<input name="itemFile" type="file" class="text1" size="40" maxlength="40">(必须是.gif或.jpg文件)

</form>