gateway网关接入nacos

搭建微服务的时候发现gateway网关一直注册无法注册进入nacos，导致其他服务一直报network error 

先从依赖入手 ，可能有版本冲突  直接从阿里云docker部署nacos

接着排查web模块

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-gateway</artifactId>
</dependency>

<!-- 服务注册 -->
<dependency>
    <groupId>com.alibaba.cloud</groupId>
    <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>

接着在启动类发现没有添加 @EnableDiscoveryClient 还是无法注册

控制台报错 No service to register for nacos client

检查application.properties配置信息 无果

server.port=80
spring.application.name=service-gateway
# nacos
spring.cloud.nacos.discovery.server-addr=ip:8848

继续排查 可能是filter 关键 GlobalFilter出错

//判断是否为开放api,不是判断是否含有token 这里设置访问失败返回方法
@Configuration
public class GatewayGlobalFilter implements GlobalFilter, Ordered {

    @Autowired
    private ObjectMapper objectMapper;

    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        String url = exchange.getRequest().getURI().getPath();
        if (UrlOpenFilter.getWhiteList().contains(url)) {
            return chain.filter(exchange);
        }
        ServerHttpResponse resp = exchange.getResponse();
        String token = exchange.getRequest().getHeaders().getFirst("Authorization");
        // token为空
        if (StringUtils.isEmpty(token)) {
            return setUnauthorizedResponse(resp, "请登录");
        }
        return chain.filter(exchange);
    }

    @Override
    public int getOrder() {
        return 0;
    }

    private Mono<Void> setUnauthorizedResponse(ServerHttpResponse resp, String mess) {
        resp.setStatusCode(HttpStatus.UNAUTHORIZED);
        resp.getHeaders().add("Content-Type", "application/json;charset=UTF-8");
        BaseResult returnData = new BaseResult(401, mess, mess);
        String returnStr = "";
        try {
            returnStr = objectMapper.writeValueAsString(returnData);
        } catch (JsonProcessingException e) {

        }
        DataBuffer buffer = resp.bufferFactory().wrap(returnStr.getBytes(StandardCharsets.UTF_8));
        return resp.writeWith(Flux.just(buffer));
    }
}

还是不行 直接debug源码分析 发现还是配置文件的问题 获取不到spring.application.name

查看项目结构

 发现target中没有加载到配置文件 设置resource文件夹mark directory as Resource ROOT 

配置文件加载成功 nacos成功注册gateway