web.xml中添加编码设置 `重点注意`：最好将这段代码放在web.xml中开头的位置，因为拦截有顺序，如果放在后面的话容易拦截不到。 ~~~ <filter> <filter-name>CharacterEncodingFilter</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>CharacterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> ~~~