Spring过滤器之CharacterEncodingFilter

编码设置过滤器-CharacterEncodingFilter
有时出现汉字乱码现象，可能是受其他Filter影响，建议放到其他Filter前

	<!-- 著名 Character Encoding filter (建议) -->
	<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>
		<init-param>
			<param-name>forceEncoding</param-name>
			<param-value>true</param-value>
		</init-param>
	</filter>
    <!--(建议,目前正在使用)  -->
	<filter-mapping>
		<filter-name>encodingFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>