Spring在web请求中定义编码（org.springframework.web.filter.CharacterEncodingFilter）

通过类org.springframework.web.filter.CharacterEncodingFilter，定义request和response的编码。具体做法是，在web.xml中定义一个Filter，如下：

<!-- Filter 定义  -->
<!-- Character Encoding filter -->
<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>
<filter-mapping>
	<filter-name>encodingFilter</filter-name>
	<url-pattern>/*</url-pattern>
</filter-mapping>

CharacterEncodingFilter类具有encoding和forceEncoding两个属性，其中encoding是表示设置request的编码，forceEncoding表示是否同时设置response的编码。


from: http://www.cnblogs.com/yoyogis/archive/2012/04/16/2451685.html