<mvc:annotation-driven>
<mvc:message-converters>
<!-- 将StringHttpMessageConverter的默认编码设为UTF-8 -->
<bean class="org.springframework.http.converter.StringHttpMessageConverter">
<constructor-arg value="UTF-8" />
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
配置默认转换器的编码格式为UTF-8，源码里是ISO-8859-1
-------------------------------
<mvc:annotation-driven>标签开启了13个bean
包含了替换3.1之前的废弃bean
DefaultAnnotationHandlerMapping -> RequestMappingHandlerMapping
AnnotationMethodHandlerAdapter -> RequestMappingHandlerAdapter
AnnotationMethodHandlerExceptionResolver -> ExceptionHandlerExceptionResolver
---------------------------------------13个bean
mvcContentNegotiationManager,
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping,-----------启用了最新的RequestMappingHandlerMapping
mvcCorsConfigurations,
org.springframework.format.support.FormattingConversionServiceFactoryBean#0,
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter,---------启用了最新的RequestMappingHandlerAdapter
mvcUriComponentsContributor,
org.springframework.web.servlet.handler.MappedInterceptor#0,
org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver#0,----------启用了最新的ExceptionHandlerExceptionResolver
org.springframework.web.servlet.mvc.annotation.ResponseStatusExceptionResolver#0,
org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver#0,
org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping,
org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter,
org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter,
