解決strus2中文亂碼

方法1：

<constant name="struts.i18n.encoding" value="UTF-8" /> 
<constant name="struts.i18n.reload" value="true" />

方法2：

在web.xml文件中加上

		<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>