springboot 拦截器

1、编写拦截器

　　

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package com.ne.scrm.org.interceptor;     import com.software.boot.common.ThreadContext; import org.springframework.web.servlet.HandlerInterceptor;   import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse;   import static com.ne.scrm.org.api.consts.MyConstants.DEALER_ID; import static com.ne.scrm.org.api.consts.MyConstants.EMP_ID;   /**  * @author Yunugi  * @since 2020-12-21  */ public class CommonDataHandlerInterceptor implements HandlerInterceptor {     @Override     public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) {         ThreadContext.put(EMP_ID, request.getHeader(EMP_ID));         ThreadContext.put(DEALER_ID, request.getHeader(DEALER_ID));         return true;     }       @Override     public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {         ThreadContext.remove(EMP_ID);         ThreadContext.remove(DEALER_ID);     } }

　　

2、注册

　　

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package com.ne.scrm.org.config;     import com.ne.scrm.org.interceptor.CommonDataHandlerInterceptor; import lombok.extern.slf4j.Slf4j; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.web.bind.WebDataBinder; import org.springframework.web.bind.annotation.ControllerAdvice; import org.springframework.web.bind.annotation.InitBinder; import org.springframework.web.context.request.WebRequest; import org.springframework.web.servlet.config.annotation.InterceptorRegistry; import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;   import java.net.URLDecoder;     /**  * Make use of MVC pattern to process args.  * Called before calling HandlerAdapter.  *  * @author Yungui  * @since 20201221  */ @Configuration @Slf4j public class WebMvcConfig implements WebMvcConfigurer {       @Override     public void addInterceptors(InterceptorRegistry registry) {         registry.addInterceptor(headerDataInterceptor()).addPathPatterns("/**");     }       @Bean     public CommonDataHandlerInterceptor headerDataInterceptor() {         return new CommonDataHandlerInterceptor();     }   }