@FeignClient(name = "service-name")
public interface XXXFeignClient {
    @RequestMapping(value = "/user/getUserTicket", method = RequestMethod.GET)
    String getUserTicket(@RequestParam("id") String id);
}

假設(shè)在服務(wù)service-name中的/user/getUserTicket接口需要從Header中取Referer數(shù)據(jù)，那么我們可以將上面代碼進(jìn)行改造：

@FeignClient(name = "service-name")
public interface XXXFeignClient {
    @RequestMapping(value = "/user/getUserTicket", method = RequestMethod.GET)
    String getUserTicket(@RequestParam("id") String id, @RequestHeader(name = "Referer") String referer);
}

然后在調(diào)用的時候?qū)eferer參數(shù)傳遞進(jìn)去即可，如

public String getTicketById(@RequestParam("id") String id, HttpServletRequest request) {
        String referer = request.getHeader("Referer");
        return xxxFeignClient.getUserTicket(id, referer);
    }

方案二：通過實(shí)現(xiàn) RequestInterceptor 接口

首先，自定義實(shí)現(xiàn)RequestInterceptor接口的apply方法，如下

import org.springframework.stereotype.Configuration;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import javax.servlet.http.HttpServletRequest;
import java.util.Enumeration;
@Configuration
public class FeignConfiguration implements RequestInterceptor {
    @Override
    public void apply(RequestTemplate requestTemplate) {
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder
                .getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();
        Enumeration<String> headerNames = request.getHeaderNames();
        if (headerNames != null) {
            while (headerNames.hasMoreElements()) {
                String name = headerNames.nextElement();
                String values = request.getHeader(name);
                requestTemplate.header(name, values);
            }
        }
    }
}

然后將自定義的配置類配置到Feign中，就可以實(shí)現(xiàn)該Feign中接口Header參數(shù)的傳遞

@FeignClient(value = "service-name" ,configuration = FeignConfiguration.class)
    public interface XXXFeignClient {
    }

到此這篇關(guān)于SpringBoot 通過Feign調(diào)用傳遞Header中參數(shù)的文章就介紹到這了,更多相關(guān)SpringBoot Feign調(diào)用傳遞Header參數(shù)內(nèi)容請搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！

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