添加filter过滤器，打印日志

Posted 2020-10-25 88aa123

filter类

package com.xiaoping.house.filter;


import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.servlet.*;
import java.io.IOException;

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

    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        logger.info("Request--comming");
        filterChain.doFilter(servletRequest,servletResponse);
    }

    @Override
    public void destroy() {

    }
}

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注册filter

package com.xiaoping.house.filter;

import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.ArrayList;

@Configuration
public class FilterBeanConfig {
    @Bean
    public FilterRegistrationBean logFilter(){
        FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean();
        filterRegistrationBean.setFilter(new LogFilter());
        ArrayList<String> urlList = new ArrayList<>();
        urlList.add("*");
        filterRegistrationBean.setUrlPatterns(urlList);

        return filterRegistrationBean;
    }
}

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