springboot之自定义过滤器

1.public class Logfilter implements Filter{

private Logger logger= LoggerFactory.getLogger(Logfilter.class);
@Override
public void init(FilterConfig filterConfig) throws ServletException {

}

@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
filterChain.doFilter(servletRequest,servletResponse);
}

@Override
public void destroy() {

}

}
创建自定义filter类实现filter接口并实现三个方法

2.@Configuration
public class FilterBeanConfig {
/**
* 1.构造filter
* 2.配置连接url
* 3.利用 FilterRegistrationBean 进行包装
* @return
/
@Bean//自动会识别为spring管理的bean
public FilterRegistrationBean logFilter(){
FilterRegistrationBean filterRegistrationBean=new FilterRegistrationBean();
filterRegistrationBean.setFilter(new Logfilter());//添加过滤器
ArrayList urList = new ArrayList<>();
urList.add("");
filterRegistrationBean.setUrlPatterns(urList);//设置过滤器路径
return filterRegistrationBean;
}
}