In-depth analysis of Spring MVC configuration files

1. About input and output parameters and message conversion configuration in mvc annotation-driven

<mvc:annotation-driven  message-codes-resolver ="bean ref" validator="" conversion-service="">
   
     <mvc:return-value-handlers>
        <bean></bean>
    </mvc:return-value-handlers>
    
    <mvc:argument-resolvers>
    </mvc:argument-resolvers>
    
    <mvc:message-converters>
    </mvc:message-converters>
</mvc:annotation-driven>

Description:
      return-value-handlers --- The return value (out parameter) processing of the request method ----- HandlerMethodReturnValueHandler
      argument-resolvers --- The input parameter processing of the request method ----- HandlerMethodArgumentResolver or WebArgumentResolver
      message-converters - -- Message conversion processing ----- HttpMessageConverter

reference: http://blog.csdn.net/he90227/article/details/51537800