使用feign服务调用添加Header参数

这篇文章主要介绍了使用feign服务调用添加Header参数的操作，具有很好的参考价值，希望对大家有所帮助。如有错误或未考虑完全的地方，望不吝赐教

feign添加Header参数

@Configuration public class FeignConfiguration implements RequestInterceptor { private static final Logger logger = LoggerFactory.getLogger(FeignConfiguration.class); @Override public void apply(RequestTemplate template) { ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes(); if(null != attributes) { HttpServletRequest request = attributes.getRequest(); String token = request.getHeader("token"); template.header("token", token); } logger.info("feign interceptor header:{}",template); } }

Feign设置Header头部,@Headers无效

在使用FeignClient调用外部接口的时候，需要在请求头部添加header的参数，用于请求的认证。在查找Feign文档中提供了@Headers注解，该注解可以完成头部的添加。但是却没有生效

@FeignClient(name="name",url = "127.0.0.1:8090/test",path = "/") public interface IUserService { @RequestMapping(value = "getUserPage",method = RequestMethod.POST) @Headers(value={"ContentType=application/x-www-form-urlencoded","Inner_token=PXH0dP5I8qQ8UbFPpzm67cQkm7j8tWT2Kwn6J6SXYkfp2kMo/lSqHQ=="}) public Map getUserPage(User user); }

在服务端获取不到Inner_token的头部参数。得到的结果是null

于是开启feign的日志

第一步：定义feign的日志配置文件类

@Configuration public class FeignConfig { @Bean Logger.Level feignLevel(){ return Logger.Level.FULL; } }

第二步：在调用的FeignClien客户端注解上指定该日志级别配置文件

@FeignClient(name="name",url = "127.0.0.1:8090/test",path = "/",configuration = FeignConfig.class) public interface IUserService { @RequestMapping(value = "getUserPage",method = RequestMethod.POST) @Headers(value={"ContentType=application/x-www-form-urlencoded","Inner_token=PXH0dP5I8qQ8UbFPpzm67cQkm7j8tWT2Kwn6J6SXYkfp2kMo/lSqHQ=="}) public Map getUserPage(User user); }

第三步：配置yml文件，指定该feignclient的配置路径和日志级别

logging: level: demo.IUserService: debug

重启，并发起请求

2019-09-27 10:46:01.662 DEBUG 15200 --- [ hystrix-name-1] demo.IUserService : [IUserService#getUserPage] ---> POST http://127.0.0.1:8090/test/getUserPage HTTP/1.1

2019-09-27 10:46:01.663 DEBUG 15200 --- [ hystrix-name-1] demo.IUserService : [IUserService#getUserPage] Content-Type: application/json;charset=UTF-8

2019-09-27 10:46:01.663 DEBUG 15200 --- [ hystrix-name-1] demo.IUserService : [IUserService#getUserPage] Content-Length: 53

2019-09-27 10:46:01.663 DEBUG 15200 --- [ hystrix-name-1] demo.IUserService : [IUserService#getUserPage]

2019-09-27 10:46:01.663 DEBUG 15200 --- [ hystrix-name-1] demo.IUserService : [IUserService#getUserPage] {"id":0,"tableName":"feignTable","page":10,"size":10}

2019-09-27 10:46:01.663 DEBUG 15200 --- [ hystrix-name-1] demo.IUserService : [IUserService#getUserPage] ---> END HTTP (53-byte body)

2019-09-27 10:46:01.684 DEBUG 15200 --- [ hystrix-name-1] demo.IUserService : [IUserService#getUserPage] 2019-09-27 10:46:01.684 DEBUG 15200 --- [ hystrix-name-1] demo.IUserService : [IUserService#getUserPage] content-type: application/json;charset=UTF-8

2019-09-27 10:46:01.685 DEBUG 15200 --- [ hystrix-name-1] demo.IUserService : [IUserService#getUserPage] date: Fri, 27 Sep 2019 02:46:01 GMT

2019-09-27 10:46:01.685 DEBUG 15200 --- [ hystrix-name-1] demo.IUserService : [IUserService#getUserPage] transfer-encoding: chunked

2019-09-27 10:46:01.685 DEBUG 15200 --- [ hystrix-name-1] demo.IUserService : [IUserService#getUserPage] x-application-context: HelloServer:8090

2019-09-27 10:46:01.685 DEBUG 15200 --- [ hystrix-name-1] demo.IUserService : [IUserService#getUserPage]

2019-09-27 10:46:01.689 DEBUG 15200 --- [ hystrix-name-1] demo.IUserService : [IUserService#getUserPage] {"success":true,"rows":[{"id":10111,"tableName":"hbaseTable","page":1,"size":20},{"id":10112,"tableName":"hbaseTable","page":1,"size":20},{"id":10113,"tableName":"hbaseTable","page":1,"size":20},{"id":10114,"tableName":"hbaseTable","page":1,"size":20},{"id":10115,"tableName":"hbaseTable","page":1,"size":20},{"id":10116,"tableName":"hbaseTable","page":1,"size":20},{"id":10117,"tableName":"hbaseTable","page":1,"size":20},{"id":10118,"tableName":"hbaseTable","page":1,"size":20},{"id":10119,"tableName":"hbaseTable","page":1,"size":20},{"id":10120,"tableName":"hbaseTable","page":1,"size":20}]}

2019-09-27 10:46:01.689 DEBUG 15200 --- [ hystrix-name-1] demo.IUserService : [IUserService#getUserPage]

在日志中发现，header中没有被加上我之前设置的参数。说明该注解没有生效