1.配置过滤器
package com.qingfeng.filter;
public class UserFilter implements Filter {
@Override
public void init(FilterConfig filterConfig) throws ServletException {
System.out.println("进入了init方法。。。。。。" );
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
System.out.println("进入了doFilter方法。。。。。。" );
}
@Override
public void destroy() {
System.out.println("进入了destroy方法。。。。。。" );
}
}
package com.qingfeng.filter;
publ