Springcloud GateWay网关配置过程图解
梦泽千秋 人气:0一般为了不暴露自己的端口信息等,会选择架构一个网关在前面进行阻挡,起到保护的作用。附上一张工作示列图。
1.配置网关9527
gateway作为网关需要和其他的应用一样需要注册进eureka中进行管理,先创建应用gateway9527
pom文件,关键是gateway依赖
<dependencies> <dependency> <groupId>com.bai</groupId> <artifactId>cloud-api-common</artifactId> <version>${project.version}</version> </dependency> <!--gateway--> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-gateway</artifactId> </dependency> <!--eureka client--> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId> </dependency> <!--热部署--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <scope>runtime</scope> <optional>true</optional> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies>
yml文件配置
server: port: 9527 spring: application: name: cloud-gateway cloud: gateway: discovery: locator: enabled: true # 开启从注册中心动态创建路由的功能,利用微服务名称进行路由 routes: - id: payment_route # 路由的id,没有规定规则但要求唯一,建议配合服务名 #匹配后提供服务的路由地址 #uri: http://localhost:8001 uri: lb://cloud-payment-service predicates: - Path=/payment/get/** # 断言,路径相匹配的进行路由 - id: payment_route2 #uri: http://localhost:8001 uri: lb://cloud-payment-service predicates: - Path=/payment/sp/** #断言,路径相匹配的进行路由 eureka: instance: hostname: cloud-gateway-service client: fetch-registry: true register-with-eureka: true service-url: defaultZone: http://eureka7001.com:7001/eureka/
主启动类正常配置
@SpringBootApplication @EnableEurekaClient public class GateWay9527 { public static void main(String[] args) { SpringApplication.run(GateWay9527.class,args); } }
2.配置路由两种方式
1)yml文件格式(推荐)
spring: application: name: cloud-gateway cloud: gateway: discovery: locator: enabled: true # 开启从注册中心动态创建路由的功能,利用微服务名称进行路由 routes: - id: payment_route # 路由的id,没有规定规则但要求唯一,建议配合服务名 #匹配后提供服务的路由地址 #uri: http://localhost:8001 uri: lb://cloud-payment-service predicates: - Path=/payment/get/** # 断言,路径相匹配的进行路由 - id: payment_route2 #uri: http://localhost:8001 uri: lb://cloud-payment-service predicates: - Path=/payment/sp/** #断言,路径相匹配的进行路由 - After=2020-11-09T11:09:52.794+08:00[Asia/Shanghai] - Cookie=username,bai #带Cookie,并且username的值为bai # - Header=X-Request-Id,\d+ #请求头要有 X-Request-Id属性并且值为整数的正则表达式
2)通过config配置类实现
@Configuration public class RouteConfig { @Bean public RouteLocator customerRoute(RouteLocatorBuilder builder){ RouteLocatorBuilder.Builder routes = builder.routes(); routes.route("payment_route1", r -> r.path("/guonei").uri("http://news.baidu.com/guonei")).build(); return routes.build(); } @Bean public RouteLocator bokeRoute(RouteLocatorBuilder builder){ RouteLocatorBuilder.Builder routes = builder.routes(); routes.route("payment_route2",r->r.path("/boke").uri("http://www.cnblogs.com/lin530/")).build(); return routes.build(); } }
3.断言(Predicate)
相当于多种限制,只有通过验证才能够访问到对应的方法
- id: payment_route2 #uri: http://localhost:8001 uri: lb://cloud-payment-service predicates: - Path=/payment/sp/** #断言,路径相匹配的进行路由 - After=2020-11-09T11:09:52.794+08:00[Asia/Shanghai] - Cookie=username,bai #带Cookie,并且username的值为bai # - Header=X-Request-Id,\d+ #请求头要有 X-Request-Id属性并且值为整数的正则表达式
不同的方法可以配置不同的断言,此处的断言需要满足路径对,after时间后,cookie带上正确的用户名才可以访问到,用cmd测试
其他还有很多断言,请对照文档自行研究
4)过滤(filter)
对访问加上限制,通过验证才可以访问
新建过滤配置类
@Component @Slf4j public class GatewayGlobalFilter implements GlobalFilter, Ordered { @Override public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) { log.info("***time is :"+new Date()); String uname = exchange.getRequest().getQueryParams().getFirst("uname"); if(uname==null){ log.info("没有用户名,出现错误:o(╥﹏╥)o"); exchange.getResponse().setStatusCode(HttpStatus.NOT_ACCEPTABLE); return exchange.getResponse().setComplete(); } return chain.filter(exchange); } /* 设置过滤器优先级,越小优先级越大 */ @Override public int getOrder() { return 0; } }
访问方式带上参数,
本篇所有代码均在GitHub:
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