用springMVC,在web.xml中配置如下代码，对所有请求进行拦截 并设置编码，避免请求乱码：
<!-- 编码Filter 加载配置 Start --> <filter> <filter-name>SetCharacterEncoding</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>SetCharacterEncoding</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>