public void fileUpload(HttpServletRequest request){
String uploadPath = "fileUpload";
String tmpPath = "tmpUpload";
if (!new File(uploadPath).exists()) {
new File(uploadPath).mkdirs();
}
if (!new File(tmpPath).exists()) {
new File(tmpPath).mkdirs();
}
DiskFileUpload fu = new DiskFileUpload();
fu.setSizeMax(4194304); // 设置最大文件尺寸
fu.setSizeThreshold(4096); // 设置缓冲区大小
fu.setRepositoryPath(tmpPath); // 设置临时目录
Iterator it = fu.parseRequest(request).iterator();
while (it.hasNext()) {
FileItem fileItem = (FileItem) it.next();
if (!fileItem.isFormField()) { // 非表单域对象
if (fileItem.getSize() > 0) {
String ext = fileItem.getName().substring(fileItem.getName().lastIndexOf("."));
String filePath = uploadPath + File.separator + Calendar.getInstance()
.getTimeInMillis() + ext;
File file = new File(filePath);
if (!file.exists()) {
file.createNewFile();
}
fileItem.write(file);
}
}
}
}
jsp文件如下：
<form action="upload.jsp" enctype="multipart/form-data"> <input type="file" name="file"> <input type="file" name="file"> ...... <input type="submit" name="submit" value="upload"> </form>
注: 用到的包 commons-fileupload.jar