教你用Springboot实现拦截器获取header内容

@RequestMapping(name = "获取用户详情信息",value = "/getUserDetail",method=GET)
 
public String getUserDetail(@RequestHeader(value = "app-user",required = false) String appUser, @RequestParam(name = "search") String search){       
 
    log.info("------>拿到的请求头是："+appUser);    
 
    return "SUCCESS";
 
}

package com.xxxx.cc.admin.interceptor;
 
 
 
 
 
import com.alibaba.fastjson.JSONObject;
 
import com.ddmc.cc.admin.support.ThreadLocalUtils;
 
import lombok.extern.slf4j.Slf4j;
 
import org.apache.commons.lang.StringUtils;
 
import org.springframework.stereotype.Component;
 
import org.springframework.web.servlet.HandlerInterceptor;
 
 
 
import javax.servlet.http.HttpServletRequest;
 
import javax.servlet.http.HttpServletResponse;
 
 
 
/**
* Copyright (C), 2017-2021 
* Author: sjugg
* Date: 2021/5/19 10:39
* FileName: AuthInterceptor
* Description: 交易前置拦截器
*/
 
@Component
 
@Slf4j
 
public class AuthInfoInterceptor implements HandlerInterceptor {
 
 
 
    @Override
 
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
 
        String userInfo = request.getHeader("app-user");
 
        log.info(">>>>>>>拦截到api相关请求头<<<<<<<<"+userInfo);
 
        if(StringUtils.isNotEmpty(userInfo)){
 
            //直接搂下来，放到ThreadLocal中 后续直接从中获取
 
           ThreadLocalUtils.set(MaiCaiApiConstants.MAI_CAI_APP_USER,userInfo);
 
        }
 
        return true;//注意 这里必须是true否则请求将就此终止。
 
    }
 
 
    @Override
 
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
 
        //移除app-user
 
        ThreadLocalUtils.remove("app-user");
 
        log.info("移除请求头中的app-user："+ThreadLocalUtils.get("app-user"));
 
    }
 
}

package com.ddmc.cc.admin.config;
 
 
import com.ddmc.cc.admin.interceptor.AuthInfoInterceptor;
 
import org.springframework.beans.factory.annotation.Autowired;
 
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
 
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 
 
 
/**
* 
*
* @author sjugg
* @since 2021/5/13 4:43 下午
*/
 
@Configuration
 
public class WebConfig implements WebMvcConfigurer {
 
 
    @Autowired
 
    private AuthInfoInterceptor authInfoInterceptor;
 
 
    @Override
 
    public void addInterceptors(InterceptorRegistry registry) {
 
        registry.addInterceptor(authInfoInterceptor).addPathPatterns("/xxxx/*");
 
    }
 
}

@RequestMapping(name = "获取用户详情信息",value = "/getUserDetail",method=GET)
 
public String getUserDetail(@RequestParam(name = "search") String search){
 
    log.info("-----> heard info here: "+ThreadLocalUtils.get("app-user"));
 
    return "SUCCESS";
}