Springboot integrates springmvc interceptor and sets log level

1. Set the log level:

It doesn't matter whether you set it or not
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2. Springboot integrates springmvc interceptor

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2.1 Custom interceptor (implement HandlerInterceptor interface is fine), if you forget, just look at the previous springmvc:

package com.itheima.interceptor;

import lombok.extern.slf4j.Slf4j;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author QLBF
 * @version 1.0
 * @date 2021/2/21 20:54
 */
@Slf4j
public class MyInterceptor implements HandlerInterceptor{
    
    
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) {
    
    
        log.debug("这是MyInterceptor拦截器的preHandle方法");
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) {
    
    
        log.debug("这是MyInterceptor拦截器的postHandle方法");

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {
    
    
        log.debug("这是MyInterceptor拦截器的afterCompletion方法");

    }
}

2.2 Define the configuration class (you must implement WebMvcConfigurer and remember to add the @Configuration table name to the configuration class ), the request path to be intercepted can be set in addPathPatterns :

Other references: How to write the configured request path

package com.itheima.config;

import com.itheima.interceptor.MyInterceptor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

/**
 * @author QLBF
 * @version 1.0
 * @date 2021/2/21 20:58
 */

@Configuration
public class MvcConfig implements WebMvcConfigurer{
    
    

    /**
     * * 将拦截器注册到spring ioc容器
     * * @return myInterceptor(是自己创建的拦截器类)
     * */

    @Bean
    public MyInterceptor myInterceptor(){
    
    
        return new MyInterceptor();
    }

    /***
     * 重写该方法；往拦截器链添加自定义拦截器
     * * @param registry 拦截器链
     * */

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
    
    
        //通过registry添加myInterceptor拦截器，并设置拦截器路径为 /*'
        //addPathPatterns("/*") 代表可以拦截所有请求
        registry.addInterceptor(myInterceptor()).addPathPatterns("/*/**");
    }
}

The total code:
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test: start the launcher class,
enter http://localhost:81/hello1 in the browser (because my interceptor configuration class is all intercepted, so this request will be intercepted):
test success