private Float balance; 代码： <span class="A124_balance_num" th:text="${#numbers.formatDecimal(balance,1,‘COMMA‘,2,‘POINT‘)}"></span> balance=0 输出0.00 balance=325.12 输出325.12
thymeleaf中默认都是调用.toString()方法
转载自：https://blog.csdn.net/t518vs20s/article/details/100038716
thymeleaf中double/float格式化,四舍五入
原文：https://www.cnblogs.com/passedbylove/p/11820383.html