一、当是 POST 请求时：
在 web.xml 中添加字符编码过滤器：
1 <filter> 2 <filter-name>characterEncodingFilter</filter-name> 3 <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> 4 <init-param> 5 <param-name>encoding</param-name> 6 <param-value>UTF-8</param-value> 7 </init-param> 8 <init-param> 9 <param-name>forceEncoding</param-name> 10 <param-value>true</param-value> 11 </init-param> 12 </filter> 13 <filter-mapping> 14 <filter-name>characterEncodingFilter</filter-name> 15 <url-pattern>/*</url-pattern> 16 </filter-mapping>
二、当是 GET 请求时：
在 Tomcat 的 server.xml 配置文件的第一个 Connector 标签里面添加 URIEncoding=“UTF-8”
1 <Connector URIEncoding="UTF-8" connectionTimeout="20000" port="8080" protocol="HTTP/1.1" redirectPort="8443"/>