springcloud全家桶个人博客系统（八）使用gateway代替zull

电玩女神 2023-07-15 21:38 153阅读 0赞

# 一、前言 #

由于zull不在维护更新，springcloud官方推荐使用gateway代替zull。所以我们就代替一下子。

# 二、添加blog\_gateway模块 #

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（1）引入pom文件

<dependencies>
            
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-gateway</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
                <version>0.9.0.RELEASE</version>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-actuator</artifactId>
            </dependency>
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
            </dependency>
        </dependencies>

### 注意：这里有个大坑，使用gateway，千万不要引入boot-web以及jetty坐标，否则会引起jar包冲突 。 ###

（2）添加main

@SpringBootApplication
    @EnableDiscoveryClient
    public class Gateway {
            public static void main(String[] args) {
                SpringApplication.run(Gateway.class, args);
            }
    }

(3)添加application.properties

server.port=9527
    
    spring.application.name=blog_gateway
    
    
    spring.cloud.nacos.discovery.server-addr=localhost:8848
    
    spring.cloud.gateway.discovery.locator.enabled=true
    spring.cloud.gateway.routes[0].id=blog-consumer-feign
    spring.cloud.gateway.routes[0].uri=lb://blog-consumer-feign
    spring.cloud.gateway.routes[0].predicates[0]= Path=/**
    
    info.app.name=blog_gateway
    info.company.name=www.sustly.cn
    info.build.artifactId=${project.artifactId}
    info.build.version=${project.version}

这里注意，uri和他对应的path要符合规则，否则访问不到的

id随便取

spring.cloud.gateway.routes\[0\].uri 这个是要路由的微服务

spring.cloud.gateway.routes\[0\].predicates\[0\] 路由断言，和路由一起匹配访问的路径

（4）自定义filter拦截日志

@Configuration
    @Slf4j
    public class LogsFilter implements GlobalFilter, Ordered {
    
        @Override
        public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
            ServerHttpRequest request = exchange.getRequest();
            log.info("path: " + request.getPath());
            log.info("address: " + request.getRemoteAddress());
            log.info("method: " + request.getMethodValue());
            log.info("URI: " + request.getURI());
            log.info("Headers: " + request.getHeaders());
            Object requestBody = exchange.getAttribute("cachedRequestBodyObject");
            log.info("body: "+ requestBody);
            return chain.filter(exchange);
        }
    
        @Override
        public int getOrder() {
            return Ordered.HIGHEST_PRECEDENCE;
        }
    
    
    }

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