spring中自带的字符编码转换

<filter>
??? <filter-name>encodingFilter</filter-name>
??? <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
??? <init-param>
????? <param-name>encoding</param-name>
????? <param-value>UTF-8</param-value>
??? </init-param>
? </filter>
? <filter-mapping>
? <filter-name>encodingFilter</filter-name>
? <url-pattern>/*</url-pattern>
? </filter-mapping>

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利用spring自带的字符编码,省去自己写filter