在Spring Cloud Gateway网关下使用Knife4j进行文档聚合，你需要首先配置好Knife4j，并确保所有需要被文档化的服务都已经接入Knife4j。以下是一个简化的步骤和示例代码：
- 在每个服务中添加Knife4j依赖：
<dependency>
<groupId>com.github.xiaoymin</groupId>
<artifactId>knife4j-spring-boot-starter</artifactId>
<version>最新版本</version>
</dependency>- 在每个服务的
application.yml或application.properties中配置Knife4j：
# 配置Knife4j
knife4j.enable=true
knife4j.basic=
username: your-username
password: your-password- 在网关服务中，使用Knife4j提供的
SwaggerResource类来获取各个服务的Swagger配置，并通过Spring Cloud Gateway的路由功能将这些配置暴露出来。
示例代码：
@Configuration
public class Knife4jConfig {
@Autowired(required = false)
private List<RouteLocator> routeLocators = new ArrayList<>();
@Autowired
private GatewayProperties gatewayProperties;
@Bean
public SwaggerResourcesProvider swaggerResourcesProvider() {
return () -> {
List<SwaggerResource> resources = new ArrayList<>();
routeLocators.forEach(routeLocator -> routeLocator.getRoutes().forEach(route -> {
// 假设服务名称和服务路径相同
String serviceName = route.getId();
resources.add(swaggerResource(serviceName, route.getUri().toString() + "/v2/api-docs"));
}));
return resources;
};
}
private SwaggerResource swaggerResource(String name, String location) {
SwaggerResource swaggerResource = new SwaggerResource();
swaggerResource.setName(name);
swaggerResource.setLocation(location);
swaggerResource.setSwaggerVersion("2.0");
return swaggerResource;
}
}- 在网关服务中创建一个Controller来响应Knife4j的文档请求：
@RestController
@RequestMapping("/swagger-resources")
public class SwaggerHandler {
@Autowired
private SwaggerResourcesProvider swaggerResourcesProvider;
@GetMapping("/configuration/security")
public ResponseEntity<SecurityConfiguration> securityConfiguration() {
return ResponseEntity.ok(new SecurityConfiguration("basicAuth", new ArrayList<>()));
}
@GetMapping("/configuration/ui")
public ResponseEntity<UiConfiguration> uiConfiguration() {
return ResponseEntity.ok(new UiConfiguration(null, null, null, null, UiConfiguration.Constants.OPERATION_NONE, 1000L));
}
@GetMapping("/")
public ResponseEntity<List<SwaggerResource>> swaggerResources() {
retur