springboot拦截器实现

package webapp.controller;

import com.alibaba.fastjson.JSONObject;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Arrays;

/**
 * @Author:vic
 * @Date:Created in 15:20 2018/09/16
 * @Description:
 */
@Configuration
public class Interceptor implements WebMvcConfigurer {

    /**
     * 添加拦截器
     * @param registry
     */
    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new SignInterceptor()).excludePathPatterns(Arrays.asList("/js/**"));//避免静态资源被拦截
    }

    //自定义拦截器
    class SignInterceptor implements HandlerInterceptor {

        @Override
        public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler){
            //拦截逻辑........ TODO

        }

        @Override
        public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {

        }

        @Override
        public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {

        }
    }
}

　　

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