Spring 使用 feign时设置header信息的操作

@FeignClient(url ="XX_url", value ="XXService")
public interface XXService {
 
    @RequestMapping(value ="/xx", method = RequestMethod.POST)
    @Headers({"Content-Type: application/json","Accept: application/json"})
    String sendDing(String params);
}

@Component
public class FeginClientConfig {
    @Bean
    public RequestInterceptor headerInterceptor() {
        return new RequestInterceptor() {
            @Override
            public void apply(RequestTemplate requestTemplate) {
                    // 小示例，没什么卵用
                    requestTemplate.header("Content-Type","application/json");
            }
        };
    }
 
    @Bean
    public Logger.Level level() {
        return Logger.Level.FULL;
    } 
}

@RequestMapping(value ="/xx", method = RequestMethod.POST, headers = {"content-type=application/x-www-form-urlencoded"})

@RequestMapping(value ="/xx", method = RequestMethod.POST, headers = {"content-type=application/x-www-form-urlencoded"})
String login(@RequestParam("username") String username,@RequestParam("password") String password;

/**
 * @author Liangzhifeng
 * date: 2018/9/13
 */
public interface UserInfoFeignClient {

    /**
     * 根据token获取用户信息
     * @param token
     * @return
     */
    @RequestMapping(value = "/user/info/1.0", method = RequestMethod.POST)
    Object getUserInfoByToken(@RequestParam("token") String token);
}

/**
 * @author Liangzhifeng
 * date: 2018/9/15
 */
@Component
public class AuthorityConfig {

    /**
     * 授权信息Header的key
     */
    public static final String OAUTH_KEY = "token";

    /**
     * 授权信息Header的值的前缀
     */
    public static final String OAUTH_VALUE_PREFIX = "Bearer ";

	// GlobalConstant.AUTHORITY_SERVICE_LINK  : 服务的名称

    @Autowired
    private Client client;

    public UserInfoFeignClient userInfoFeignClient(String token) {
        UserInfoFeignClient authorityServiceLoginInvoker = Feign.builder().client(client)
                .encoder(new GsonEncoder())
                .decoder(new GsonDecoder())
                .contract(new SpringMvcContract())
                .requestInterceptor(template -> template.header(OAUTH_KEY, OAUTH_VALUE_PREFIX + token))
                .target(UserInfoFeignClient.class, GlobalConstant.AUTHORITY_SERVICE_LINK);
        return authorityServiceLoginInvoker;
    }
}

@Autowired
private AuthorityConfig authorityConfig;

/**
 * 根据token获取用户信息
 *
 * @param token 用户登录的授权token
 * @return 用户信息JSON
 */
public Object getUserInfo(String token) {
    try {
        Object userInfo = authorityConfig.userInfoFeignClient(token).getUserInfoByToken(token);
        return userInfo;
    } catch (Exception e) {
        log.info("获取用户信息异常", e);
        return null;
    }
}