答案可以在这里找到:
characterEncoding应该为
templateResolver和明确设置属性
ThymeleafViewResolver:
<bean id="templateResolver" > ... <property name="characterEncoding" value="UTF-8"/> ...</bean><bean > ... <property name="characterEncoding" value="UTF-8"/> ...</bean>

答案可以在这里找到:
characterEncoding应该为
templateResolver和明确设置属性
ThymeleafViewResolver:
<bean id="templateResolver" > ... <property name="characterEncoding" value="UTF-8"/> ...</bean><bean > ... <property name="characterEncoding" value="UTF-8"/> ...</bean>