5. 实现API监控
Zuul支持API监控,可以通过/actuator/routes
端点查看当前的路由规则。以下是一个示例代码:
management:
endpoints:
web:
exposure:
include: routes
spring:
application:
name: zuul-gateway
在上面的代码中,我们通过配置/actuator/routes
端点的暴露来启用API监控。可以通过访问http://localhost:8080/actuator/routes
来查看当前的路由规则。
6. 示例
以下是一个完整的Zuul示例,包括路由、过滤、缓存和API监控:
代码语言:javascript复制@EnableZuulProxy
@EnableCaching
@SpringBootApplication
public class ZuulApplication {
public static void main(String[] args) {
SpringApplication.run(ZuulApplication.class, args);
}
@Autowired
private RouteLocator routeLocator;
@Autowired
private CacheManager cacheManager;
@Bean
public ZuulFilter myFilter() {
return new ZuulFilter() {
@Override
public String filterType() {
return "pre";
}
@Override
public int filterOrder() {
return 0;
}
@Override
public boolean shouldFilter() {
return true;
}
@Override
public Object run() throws ZuulException {
RequestContext context = RequestContext.getCurrentContext();
HttpServletRequest request = context.getRequest();
HttpServletResponse response = context.getResponse();
// 对请求或响应进行处理
return null;
}
};
}
@RequestMapping("/users/{id}")
@Cacheable(value = "users", key = "#id")
public User getUserById(@PathVariable Long id) {
// 从数据库中获取用户信息
return userRepository.findById(id);
}
@GetMapping("/actuator/routes")
public Map<String, Object> getRoutes() {
List<Route> routes = routeLocator.getRoutes();
Map<String, Object> result = new HashMap<>();
result.put("routes", routes);
return result;
}
}
在上面的示例代码中,我们定义了一个Zuul应用,并启用了路由、过滤、缓存和API监控功能。可以根据实际需求进行修改和扩展。