你可以用一下,java中的<filter>
配置信息web.xml
  <filter>
    <filter-name>CharsetEncoding</filter-name>
    <filter-class>fileter</filter-class>
    <init-param>
      <param-name>RequestEncoding</param-name>
      <param-value>iso-8859-1</param-value>
    </init-param>
    <init-param>
      <param-name>ResponseEncoding</param-name>
      <param-value>gb2312</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>CharsetEncoding</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
然后新建一个filter类就可以了! 网上例子很多的