打印请求头

Map<String,Object> headerMap = new HashMap<>();
Enumeration headerNames = request.getHeaderNames();

			while (headerNames.hasMoreElements()) {
				String headerName = headerNames.nextElement();
				Enumeration<String> headers = request.getHeaders(headerName);
				while (headers.hasMoreElements()) {
					String headerValue = headers.nextElement();
					headerMap.put(headerName, headerValue);
				}

			}

请求头拦截器Interceptor
implements HandlerInterceptor 重写方法
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import java.lang.reflect.Field;
import java.util.Enumeration;

@Slf4j
public class MyInterceptor implements HandlerInterceptor {

@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
    MyHeader myHeader = new MyHeader();
    MyHeaderEnum[] myHeaderEnums =  MyHeaderEnum.values();
    for (MyHeaderEnum myHeaderEnum : myHeaderEnums){
        String headerValue = request.getHeader(myHeaderEnum.getVal());
        setMyHeaderFiled(myHeader,myHeaderEnum,headerValue);
    }
    log.info("myHeader:{}",myHeader);
    SecurityUtils.setMyHeader(myHeader);
    return true;
}

private void setMyHeaderFiled(MyHeader myHeader, MyHeaderEnum myHeaderEnum, String headerValue) throws Exception {
    String filedName = myHeaderEnum.getVal();
    Class<?> clazz = MyHeader.class;
    Field field = clazz.getDeclaredField(filedName);
    field.setAccessible(true);
    field.set(myHeader,headerValue);

}

private String getRequestHeaders(HttpServletRequest request){
    Enumeration<String> headerNames = request.getHeaderNames();
    StringBuilder headers = new StringBuilder();
    while (headerNames.hasMoreElements()){
        String headerName = headerNames.nextElement();
        String headerValue = request.getHeader(headerName);
        headers.append(headerName).append(": ").append(headerValue).append(", ");
    }
    if (headers.length() > 0){
        headers.setLength(headers.length() - 2);
    }
    return headers.toString();
}
@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
    HandlerInterceptor.super.postHandle(request, response, handler, modelAndView);
}

@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
    SecurityUtils.clearMyHeader();
}

}

在配置类中注入拦截器

WebConfig
@Configuration
public class WebConfig implements WebMvcConfigurer {

@Override
public void addInterceptors(InterceptorRegistry registry) {
    registry.addInterceptor(clientRequestInterceptor());
}

@Bean
@Scope(value = "request", proxyMode = ScopedProxyMode.TARGET_CLASS)
public MyHeader myHeader(){
    return new MyHeader();
}

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

}

请求头的枚举类、实体类

@Getter
@AllArgsConstructor
public enum MyHeaderEnum {
USERID("userId"),
ORGID("orgId");

private final String val;

}
存进线程池

public class SecurityUtils {
private static final ThreadLocal myHeaderThreadLocal = new ThreadLocal<>();

public static MyHeader getMyHeader(){
    return myHeaderThreadLocal.get();
}

public static void setMyHeader(MyHeader myHeader){
    myHeaderThreadLocal.set(myHeader);
}

public static void clearMyHeader(){
    myHeaderThreadLocal.remove();
}

}