{"id":2159,"date":"2023-04-02T13:33:25","date_gmt":"2023-04-02T05:33:25","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=2159"},"modified":"2023-04-05T19:45:04","modified_gmt":"2023-04-05T11:45:04","slug":"spring-cloud-zuul-mysql-implements-dynamic-routing-and-manual-refresh","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/04\/02\/spring-cloud-zuul-mysql-implements-dynamic-routing-and-manual-refresh\/","title":{"rendered":"Spring Cloud Zuul MySQL \u5b9e\u73b0\u52a8\u6001\u8def\u7531\u4ee5\u53ca\u624b\u52a8\u5237\u65b0"},"content":{"rendered":"

\u4ecb\u7ecd<\/h2>\n

\u5b9e\u73b0zuul\u7684\u52a8\u6001\u8def\u7531\u53ef\u901a\u8fc7\u4e24\u79cd\u65b9\u5f0f<\/p>\n

    \n
  1. \u57fa\u4e8e\u914d\u7f6e\u4e2d\u5fc3\u5b9e\u73b0\u914d\u7f6e\u6587\u4ef6\u52a8\u6001\u5237\u65b0<\/li>\n
  2. \u57fa\u4e8e\u6570\u636e\u5e93\u5b58\u50a8\u914d\u7f6e\u6587\u4ef6\uff0c\u53d1\u5e03RoutesRefreshedEvent<\/code>\u4e8b\u4ef6\uff0c\u89e6\u53d1SimpleRouteLocator<\/code>\u91cd\u65b0\u52a0\u8f7d\u914d\u7f6e<\/li>\n<\/ol>\n

    \u4ee3\u7801\u53c2\u8003\uff1ahttps:\/\/github.com\/iyezhou\/zuul-gateway-demo<\/a><\/p>\n

    <\/p>\n

    \u5b9e\u73b0\u6b65\u9aa4<\/h2>\n

    \u6570\u636e\u5e93\u521d\u59cb\u5316<\/h3>\n
    CREATE TABLE `zuul_route` (\n  `id` varchar(50) NOT NULL,\n  `path` varchar(255) NOT NULL,\n  `service_id` varchar(50) DEFAULT NULL,\n  `url` varchar(255) DEFAULT NULL,\n  `strip_prefix` tinyint(1) DEFAULT '1',\n  `retryable` tinyint(1) DEFAULT '0',\n  `enabled` tinyint(1) NOT NULL DEFAULT '1',\n  `description` varchar(255) DEFAULT NULL,\n  PRIMARY KEY (`id`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\ninsert into `zuul_route`(`id`,`path`,`service_id`,`url`,`strip_prefix`,`retryable`,`enabled`,`description`) values ('pppp','\/client\/**',NULL,'http:\/\/localhost:7070',1,0,1,'url');<\/code><\/pre>\n
    \u914d\u7f6e\u6587\u4ef6<\/h3>\n
    server:\n  port: 8080\neureka:\n  client:\n    serviceUrl:\n      defaultZone: http:\/\/127.0.0.1:8000\/eureka\/   #\u6ce8\u518c\u4e2d\u5fc3\u5730\u5740\n    registry-fetch-interval-seconds: 15    #\u5ba2\u6237\u7aef\u62c9\u53d6\u670d\u52a1\u7aef\u7684\u9891\u7387\nspring:\n  application:\n    name: zuul\n  datasource:\n    url: jdbc:mysql:\/\/rm-bp1e5s5co.mysql.rds.aliyuncs.com:3306\/zuul?useUnicode=true&characterEncoding=utf-8\n    driver-class-name: com.mysql.jdbc.Driver\n    username: rook\n    password: Hou5\nribbon:\n  eureka:\n    enabled: true<\/code><\/pre>\n
    \u6570\u636e\u5e93\u8bbf\u95ee\u00a0<\/h3>\n
    public class ZuulRouteEntity {\n\n    private String id;\n\n    private String path;\n\n    private String serviceId;\n\n    private String url;\n\n    private boolean stripPrefix = true;\n\n    private Boolean retryable;\n\n    private Boolean enabled;\n\n    private String description;\n}<\/code><\/pre>\n
    @Component\npublic class PropertiesDao {\n\n    @Autowired\n    private JdbcTemplate jdbcTemplate;\n\n    private final static String SQL = "SELECT * FROM zuul_route WHERE enabled = TRUE";\n\n    public Map<String, ZuulRoute> getProperties() {\n        Map<String, ZuulRoute> routes = new LinkedHashMap<>();\n        List<ZuulRouteEntity> list = jdbcTemplate.query(SQL, new BeanPropertyRowMapper<>(ZuulRouteEntity.class));\n        list.forEach(entity -> {\n            if (StringUtils.isEmpty(entity.getPath())) {\n                return;\n            }\n            ZuulRoute zuulRoute = new ZuulRoute();\n            BeanUtils.copyProperties(entity, zuulRoute);\n            routes.put(zuulRoute.getPath(), zuulRoute);\n        });\n        return routes;\n    }\n}<\/code><\/pre>\n
    \u91cd\u5199\u7406\u7531\u914d\u7f6e\u52a0\u8f7d\u65b9\u6cd5<\/h3>\n
    import org.springframework.beans.factory.annotation.Autowired;\nimport org.springframework.cloud.netflix.zuul.filters.RefreshableRouteLocator;\nimport org.springframework.cloud.netflix.zuul.filters.SimpleRouteLocator;\nimport org.springframework.cloud.netflix.zuul.filters.ZuulProperties;\nimport org.springframework.cloud.netflix.zuul.filters.ZuulProperties.ZuulRoute;\nimport org.springframework.util.StringUtils;\n\nimport java.util.LinkedHashMap;\nimport java.util.Map;\n\npublic class DynamicZuulRouteLocator extends SimpleRouteLocator implements RefreshableRouteLocator {\n\n    @Autowired\n    private ZuulProperties properties;\n\n    @Autowired\n    private PropertiesDao propertiesDao;\n\n    public DynamicZuulRouteLocator(String servletPath, ZuulProperties properties) {\n        super(servletPath, properties);\n        this.properties = properties;\n    }\n\n    @Override\n    public void refresh() {\n        doRefresh();\n    }\n\n    @Override\n    protected Map<String, ZuulRoute> locateRoutes() {\n        LinkedHashMap<String, ZuulRoute> routesMap = new LinkedHashMap<>();\n        routesMap.putAll(super.locateRoutes());\n        routesMap.putAll(propertiesDao.getProperties());\n        LinkedHashMap<String, ZuulRoute> values = new LinkedHashMap<>();\n        routesMap.forEach((key, value) -> {\n            String path = key;\n            if (!path.startsWith("\/")) {\n                path = "\/" + path;\n            }\n            if (StringUtils.hasText(this.properties.getPrefix())) {\n                path = this.properties.getPrefix() + path;\n                if (!path.startsWith("\/")) {\n                    path = "\/" + path;\n                }\n            }\n            values.put(path, value);\n        });\n        return values;\n    }\n}<\/code><\/pre>\n
    @Configuration\npublic class DynamicZuulConfig {\n\n    @Autowired\n    private ZuulProperties zuulProperties;\n\n    @Autowired\n    private ServerProperties serverProperties;\n\n    @Bean\n    public DynamicZuulRouteLocator routeLocator() {\n        DynamicZuulRouteLocator routeLocator = new DynamicZuulRouteLocator(\n                serverProperties.getServlet().getContextPath(), zuulProperties);\n        return routeLocator;\n    }\n}<\/code><\/pre>\n
    \u5237\u65b0\u63a5\u53e3<\/h3>\n
    @RestController\npublic class RefreshController {\n    @Autowired\n    private ApplicationEventPublisher publisher;\n    @Autowired\n    private RouteLocator routeLocator;\n    @Autowired\n    private ZuulHandlerMapping zuulHandlerMapping;\n\n    @GetMapping("refreshRoute")\n    public String refreshRoute() {\n        RoutesRefreshedEvent routesRefreshedEvent = new RoutesRefreshedEvent(routeLocator);\n        publisher.publishEvent(routesRefreshedEvent);\n        return "refresh success";\n    }\n\n    @GetMapping("watchRoute")\n    public Object watchNowRoute() {\n        \/\/\u53ef\u4ee5\u7528debug\u6a21\u5f0f\u770b\u91cc\u9762\u5177\u4f53\u662f\u4ec0\u4e48\n        return zuulHandlerMapping.getHandlerMap();\n    }\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
    \u4ecb\u7ecd \u5b9e\u73b0zuul\u7684\u52a8\u6001\u8def\u7531\u53ef\u901a\u8fc7\u4e24\u79cd\u65b9\u5f0f \u57fa\u4e8e\u914d\u7f6e\u4e2d\u5fc3\u5b9e\u73b0\u914d\u7f6e\u6587\u4ef6\u52a8\u6001\u5237\u65b0 \u57fa\u4e8e\u6570\u636e\u5e93\u5b58\u50a8\u914d\u7f6e\u6587\u4ef6\uff0c\u53d1\u5e03Ro […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17,42],"tags":[20,250,553],"class_list":["post-2159","post","type-post","status-publish","format-standard","hentry","category-nacos","category-spring-cloud","tag-mysql","tag-zuul","tag-553"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/2159","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=2159"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/2159\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=2159"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=2159"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=2159"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}