可以对资源进行增删改

src/main/resources/templates/login.html

@@ -23,7 +23,7 @@
         </label>
     </div>
 
-    <button class="btn btn-lg btn-primary btn-block mt-3" type="submit">登 录</button>
+    <button class="btn btn-lg btn-primary btn-block mt-3" type="submit" onclick="this.disabled=true; this.form.submit();">登 录</button>
 
     <p class="clearfix">
         <a th:href="@{/register}" class="float-right">没有账号？去注册</a>