小编yel*_*g99的帖子

我的代码是

public enum PartsOfSpeech2 {\n\n    n("noun"),\n    wp("\xe6\xa0\x87\xe7\x82\xb9"),\n    a("adjective"),\n    d("conjunction"),\n    ...;\n

我想要哪个

public enum PartsOfSpeech2 {\n\n    n("noun"),\n    wp("\xe6\xa0\x87\xe7\x82\xb9"),\n    a("adjective"),\n    d("conjunction"),\n    %("noun");\n

我可以有一个不在其中的默认值\xef\xbc\x8c 可以将其设置为默认值\xef\xbc\x9f\n因为我有一个类型是“%”，但枚举不支持%，所以我想要一个默认值来解决它

我的Controller使用“org.apache.commons.fileupload”实现了文件上传。看见：

 @PostMapping("/upload")
    public String upload2(HttpServletRequest request) throws Exception {

        ServletFileUpload upload = new ServletFileUpload();
        FileItemIterator iter = upload.getItemIterator(request);
        boolean uploaded = false;

        while (iter.hasNext() && !uploaded) {
            FileItemStream item = iter.next();
            if (item.isFormField()) {
                item.openStream().close();
            } else {
                String fieldName = item.getFieldName();
                if (!"file".equals(fieldName)) {
                    item.openStream().close();
                } else {

                    InputStream stream = item.openStream();
                    // dosomething here.
                    uploaded = true;
                }
            }
        }
            if (uploaded) {
                return "ok";
            } else {
                throw new BaseResponseException(HttpStatus.BAD_REQUEST, "400", "no file field or data file …