可以对资源进行增删改

src/main/resources/templates/question/read.html

@@ -83,7 +83,7 @@
                 <div class="form-group">
                     <textarea required name="content" class="form-control" rows="3"></textarea>
                 </div>
-                <button type="submit" class="btn btn-primary float-right">提交评论</button>
+                <button type="submit" onclick="this.disabled=true; this.form.submit();" class="btn btn-primary float-right">提交评论</button>
             </form>
         </div>