過濾器~~
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新建一个class 导入filter的接口
public class EncodingFilter implements Filter {
public void destroy() {
// TODO Auto-generated method stub
}
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
System.out.println("encodingFilter doFilter-----");
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
chain.doFilter(request,response);
}
public void init(FilterConfig arg0) throws ServletException {
// TODO Auto-generated method stub
System.out.println("过滤器初始化");
}
}
回到web.xml里面
<!-- 配置过滤器 -->
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>com.neusoft.servlet.EncodingFilter</filter-class>
</filter>
<!-- 定义过滤器路径 -->
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
