解决乱码问题

1.  post 请求

在 web.xml 中添加

<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>

2.  get 请求 ( 两种 )

     1.  修改tomcat配置文件添加编码与工程编码一致

<Connector URIEncoding="utf-8"connectionTimeout="20000" port="8080"protocol="HTTP/1.1" redirectPort="8443"/>

     2.  对参数进行重新编码

String userNamenew

String(request.getParamter("userName").getBytes("ISO8859-1"),"utf-8")