前提条件
微服务已经集成了swagger，并且注册进了nacos。
gateway配置
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package com.zmy.springcloud.config;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.Value;import org.springframework.cloud.gateway.route.RouteLocator;import org.springframework.stereotype.Component;import springfox.documentation.swagger.web.SwaggerResource;import springfox.documentation.swagger.web.SwaggerResourcesProvider;import java.util.*;/** * 聚合各个服务的swagger接口 */@Componentpublic class MySwaggerResourceProvider implements SwaggerResourcesProvider { /** * swagger2默认的url后缀 */ private static final String SWAGGER2URL = "/v2/api-docs"; /** * 网关路由 */ private final RouteLocator routeLocator; /** * 网关应用名称 */ @Value("${spring.application.name}") private String self; @Autowired public MySwaggerResourceProvider(RouteLocator routeLocator) { this.routeLocator = routeLocator; } @Override public List<SwaggerResource> get() { List<SwaggerResource> resources = new ArrayList<>(); List<String> routeHosts = new ArrayList<>(); // 获取所有可用的host：serviceId routeLocator.getRoutes().filter(route -> route.getUri().getHost() != null) .filter(route -> !self.equals(route.getUri().getHost())) .subscribe(route -> routeHosts.add(route.getUri().getHost())); // 记录已经添加过的server Set<String> dealed = new HashSet<>(); routeHosts.forEach(instance -> { // 拼接url String url = "/" + instance.toLowerCase() + SWAGGER2URL; if (!dealed.contains(url)) { dealed.add(url); SwaggerResource swaggerResource = new SwaggerResource(); swaggerResource.setUrl(url); swaggerResource.setName(instance); resources.add(swaggerResource); } }); return resources; }} |
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package com.zmy.springcloud.config.swagger.controller;import com.zmy.springcloud.config.MySwaggerResourceProvider;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.http.HttpStatus;import org.springframework.http.ResponseEntity;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;import springfox.documentation.swagger.web.*;import java.util.List;/** * swagger聚合接口，三个接口都是swagger-ui.html需要访问的接口 */@RestController@RequestMapping("/swagger-resources")public class SwaggerResourceController { private MySwaggerResourceProvider swaggerResourceProvider; @Autowired public SwaggerResourceController(MySwaggerResourceProvider swaggerResourceProvider) { this.swaggerResourceProvider = swaggerResourceProvider; } @RequestMapping(value = "/configuration/security") public ResponseEntity<SecurityConfiguration> securityConfiguration() { return new ResponseEntity<>(SecurityConfigurationBuilder.builder().build(), HttpStatus.OK); } @RequestMapping(value = "/configuration/ui") public ResponseEntity<UiConfiguration> uiConfiguration() { return new ResponseEntity<>(UiConfigurationBuilder.builder().build(), HttpStatus.OK); } @RequestMapping public ResponseEntity<List<SwaggerResource>> swaggerResources() { return new ResponseEntity<>(swaggerResourceProvider.get(), HttpStatus.OK); }} |
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<dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-gateway</artifactId></dependency><!--swagger生成API文档--><dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger2</artifactId> <version>2.9.2</version> <exclusions> <exclusion> <groupId>io.swagger</groupId> <artifactId>swagger-models</artifactId> </exclusion> </exclusions></dependency><dependency> <groupId>io.swagger</groupId> <artifactId>swagger-models</artifactId> <version>1.5.22</version></dependency><dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger-ui</artifactId> <version>2.9.2</version></dependency><!--nacos--><dependency> <groupId>com.alibaba.cloud</groupId> <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId></dependency> |
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server: port: 9527spring: application: name: cloud-gateway cloud: gateway: routes: - id: seata-storage-service uri: lb://seata-storage-service predicates: - Path=/seata-storage-service/** # 断言，相匹配的进行路由 filters: - StripPrefix=1 - id: seata-account-service uri: lb://seata-account-service - Path=/seata-account-service/** discovery: locator: enabled: true #开启从注册中心动态创建路由的功能，利用微服务名进行路由 nacos: server-addr: localhost:8848 |
- StripPrefix=1是必须配置的，跳过- Path的第一段路径。
http://localhost:2003/v2/api-docs 这个是正确的swagger数据请求地址。不加- StripPrefix=1的话，swagger在请求数据时候会请求http://localhost:2003/seata-account-service/v2/api-docs，这样就会请求不到数据。
如果不加- StripPrefix=1，也有其他的解决方案，可以在微服务提供者中配置服务上下文路径
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server: servlet: context-path: /seata-order-service |
注意网关的拦截器，不要将swagger请求拦截掉。
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原文链接：https://blog.csdn.net/a14654/article/details/123258977
