文书上传
1.var localFilePath = $("#docFile").val(); // docFile为上传控件的ID
2.var fileName = common.getFileName(localFilePath);
common.getFileName = function(path){
if (!path) {
return "";
}
return path.substring(path.lastIndexOf("\\")+1);
}
3.将获得的fileName传递给后台
4.docFilePath = FileUtil.saveFile(createDocForm.docFile, "");

public static String saveFile(FormFile formFile, String sub) throws SystemException, IORuntimeException, FileNotFoundException, IOException, SessionTimeoutException {
if (formFile == null) {
return null;
}

String rootPath = ServletContextUtil.getServletContext().getRealPath("") + "/tmp/" + SessionAccessor.getSessionId() + "/";
if (!ValidateUtil.isEmpty(sub)) {
rootPath += sub + "/";
}
rootPath = rootPath.replace("\\", "/");

File folder = new File(rootPath);
String errMsg = MessageUtil.getMessage("ACDC025");
if (!folder.exists()) {
if (!folder.mkdirs()) {
throw new SystemException(errMsg);
}
} else {
int count = 0;
while (new File(rootPath + count + "/").exists()) {
count++;
}
folder = new File(rootPath + count + "/");
if (!folder.mkdirs()) {
throw new SystemException(errMsg);
}
}

// UUIDでファイルを保存する
String ext = formFile.getFileName().replaceFirst(".*[.]", "");
String path = rootPath + UUID.randomUUID().toString() + "." + ext;
InputStreamUtil.copy(formFile.getInputStream(), new FileOutputStream(path));
return path;
}