中文乱码真的很烦人的。而且每次都要写，可麻烦了，而且有时候写了还不一定管用，所以我们可以试试过滤器
1.每个jsp头上当然要写上utf8啦
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
2.然后添加一个过滤器
在过滤器的doFilter里写上
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
// TODO Auto-generated method stub
// place your code here
/*
* 设置request、response的编码
*/
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
// pass the request along the filter chain
chain.doFilter(request, response);
}
3.别忘了在web.xml里配置
<filter>
<filter-name>CharFilter</filter-name>
<filter-class>com.xx17.cys.filter.CharacterFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>CharFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
大功告成！！！
舒服！！！