使用thymeleaf时报的'viewResolver’的bean无法创建从而引发的一系列异常

异常信息： Error creating bean with name ‘viewResolver’ defined in class path resource [org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter.class]: Initialization of bean failed; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.boot.autoconfigure.thymeleaf.ThymeleafAutoConfiguration$WebMvcAutoConfigurationAdapter.class]:Initializationofbeanfailed;nestedexceptionisorg.springframework.beans.factory.UnsatisfiedDependencyException:Errorcreatingbeanwithname′org.springframework.boot.autoconfigure.thymeleaf.ThymeleafAutoConfigurationThymeleaf3Configuration$Thymeleaf3ViewResolverConfiguration': Unsatisfied dependency expressed through constructor parameter 1; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.autoconfigure.thymeleaf.ThymeleafAutoConfiguration$Thymeleaf3ViewResolverConfiguration′:Unsatisfieddependencyexpressedthroughconstructorparameter1;nestedexceptionisorg.springframework.beans.factory.BeanCreationException:Errorcreatingbeanwithname′org.springframework.boot.autoconfigure.thymeleaf.ThymeleafAutoConfigurationThymeleafDefaultConfiguration’: Bean instantiation via constructor failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.autoconfigure.thymeleaf.ThymeleafAutoConfiguration$ThymeleafDefaultConfiguration$ThymeleafDefaultConfiguration$EnhancerBySpringCGLIB$EnhancerBySpringCGLIB$b20dfd10]: Constructor threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'layoutDialect' defined in class path resource [org/springframework/boot/autoconfigure/thymeleaf/ThymeleafAutoConfiguration$b20dfd10]:Constructorthrewexception;nestedexceptionisorg.springframework.beans.factory.BeanCreationException:Errorcreatingbeanwithname′layoutDialect′definedinclasspathresource[org/springframework/boot/autoconfigure/thymeleaf/ThymeleafAutoConfigurationThymeleafWebLayoutConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [nz.net.ultraq.thymeleaf.LayoutDialect]: Factory method ‘layoutDialect’ threw exception; nested exception is java.lang.NoClassDefFoundError: org/thymeleaf/dom/Attribute

解决方式：项目的pom文件中propertis参数添加：<thymeleaf-layout-dialect.version>2.0.4</thymeleaf-layout-dialect.version>

thymeleaf在springboot中的完整配置：
1.添加坐标：

org.springframework.boot
spring-boot-starter-thymeleaf


org.assertj
assertj-core

2.pom中的propertis中添加两行

<java.version>1.8</java.version>
<thymeleaf.version>3.0.2.RELEASE</thymeleaf.version>
<thymeleaf-layout-dialect.version>2.0.4</thymeleaf-layout-dialect.version>

3.配置文件中添加相应配置。（其实也可以不配置，如果将html资源放置在templates的包下，则无需配置）
spring.thymeleaf.servlet.content-type=text/html
spring.thymeleaf.mode=HTML
spring.thymeleaf.cache=false
spring.thymeleaf.encoding=utf-8