服务治理的三个角色:
服务提供者:订阅服务
服务消费者:注册服务
注册中心:记录与监控服务状态,推送服务变更信息。提供者定时发送心跳检测,心跳检测失败,就会向消费者推送变更
提供者通过负载均衡的算法选择消费者
搭建nacos:
1.在sql表中执行
-- -------------------------------------------------------- -- 主机: 192.168.150.101 -- 服务器版本: 8.0.27 - MySQL Community Server - GPL -- 服务器操作系统: Linux -- HeidiSQL 版本: 12.2.0.6576 -- -------------------------------------------------------- /*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */; /*!40101 SET NAMES utf8 */; /*!50503 SET NAMES utf8mb4 */; /*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */; /*!40103 SET TIME_ZONE='+00:00' */; /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */; /*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */; /*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */; -- 导出 nacos 的数据库结构 DROP DATABASE IF EXISTS `nacos`; CREATE DATABASE IF NOT EXISTS `nacos` /*!40100 DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci */ /*!80016 DEFAULT ENCRYPTION='N' */; USE `nacos`; -- 导出 表 nacos.config_info 结构 DROP TABLE IF EXISTS `config_info`; CREATE TABLE IF NOT EXISTS `config_info` ( `id` bigint NOT NULL AUTO_INCREMENT COMMENT 'id', `data_id` varchar(255) COLLATE utf8_bin NOT NULL COMMENT 'data_id', `group_id` varchar(128) COLLATE utf8_bin DEFAULT NULL, `content` longtext COLLATE utf8_bin NOT NULL COMMENT 'content', `md5` varchar(32) COLLATE utf8_bin DEFAULT NULL COMMENT 'md5', `gmt_create` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间', `gmt_modified` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间', `src_user` text COLLATE utf8_bin COMMENT 'source user', `src_ip` varchar(50) COLLATE utf8_bin DEFAULT NULL COMMENT 'source ip', `app_name` varchar(128) COLLATE utf8_bin DEFAULT NULL, `tenant_id` varchar(128) COLLATE utf8_bin DEFAULT '' COMMENT '租户字段', `c_desc` varchar(256) COLLATE utf8_bin DEFAULT NULL, `c_use` varchar(64) COLLATE utf8_bin DEFAULT NULL, `effect` varchar(64) COLLATE utf8_bin DEFAULT NULL, `type` varchar(64) COLLATE utf8_bin DEFAULT NULL, `c_schema` text COLLATE utf8_bin, `encrypted_data_key` text COLLATE utf8_bin NOT NULL COMMENT '秘钥', PRIMARY KEY (`id`), UNIQUE KEY `uk_configinfo_datagrouptenant` (`data_id`,`group_id`,`tenant_id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3 COLLATE=utf8_bin COMMENT='config_info'; -- 正在导出表 nacos.config_info 的数据:~0 rows (大约) DELETE FROM `config_info`; -- 导出 表 nacos.config_info_aggr 结构 DROP TABLE IF EXISTS `config_info_aggr`; CREATE TABLE IF NOT EXISTS `config_info_aggr` ( `id` bigint NOT NULL AUTO_INCREMENT COMMENT 'id', `data_id` varchar(255) COLLATE utf8_bin NOT NULL COMMENT 'data_id', `group_id` varchar(128) COLLATE utf8_bin NOT NULL COMMENT 'group_id', `datum_id` varchar(255) COLLATE utf8_bin NOT NULL COMMENT 'datum_id', `content` longtext COLLATE utf8_bin NOT NULL COMMENT '内容', `gmt_modified` datetime NOT NULL COMMENT '修改时间', `app_name` varchar(128) COLLATE utf8_bin DEFAULT NULL, `tenant_id` varchar(128) COLLATE utf8_bin DEFAULT '' COMMENT '租户字段', PRIMARY KEY (`id`), UNIQUE KEY `uk_configinfoaggr_datagrouptenantdatum` (`data_id`,`group_id`,`tenant_id`,`datum_id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3 COLLATE=utf8_bin COMMENT='增加租户字段'; -- 正在导出表 nacos.config_info_aggr 的数据:~0 rows (大约) DELETE FROM `config_info_aggr`; -- 导出 表 nacos.config_info_beta 结构 DROP TABLE IF EXISTS `config_info_beta`; CREATE TABLE IF NOT EXISTS `config_info_beta` ( `id` bigint NOT NULL AUTO_INCREMENT COMMENT 'id', `data_id` varchar(255) COLLATE utf8_bin NOT NULL COMMENT 'data_id', `group_id` varchar(128) COLLATE utf8_bin NOT NULL COMMENT 'group_id', `app_name` varchar(128) COLLATE utf8_bin DEFAULT NULL COMMENT 'app_name', `content` longtext COLLATE utf8_bin NOT NULL COMMENT 'content', `beta_ips` varchar(1024) COLLATE utf8_bin DEFAULT NULL COMMENT 'betaIps', `md5` varchar(32) COLLATE utf8_bin DEFAULT NULL COMMENT 'md5', `gmt_create` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间', `gmt_modified` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间', `src_user` text COLLATE utf8_bin COMMENT 'source user', `src_ip` varchar(50) COLLATE utf8_bin DEFAULT NULL COMMENT 'source ip', `tenant_id` varchar(128) COLLATE utf8_bin DEFAULT '' COMMENT '租户字段', `encrypted_data_key` text COLLATE utf8_bin NOT NULL COMMENT '秘钥', PRIMARY KEY (`id`), UNIQUE KEY `uk_configinfobeta_datagrouptenant` (`data_id`,`group_id`,`tenant_id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3 COLLATE=utf8_bin COMMENT='config_info_beta'; -- 正在导出表 nacos.config_info_beta 的数据:~0 rows (大约) DELETE FROM `config_info_beta`; -- 导出 表 nacos.config_info_tag 结构 DROP TABLE IF EXISTS `config_info_tag`; CREATE TABLE IF NOT EXISTS `config_info_tag` ( `id` bigint NOT NULL AUTO_INCREMENT COMMENT 'id', `data_id` varchar(255) COLLATE utf8_bin NOT NULL COMMENT 'data_id', `group_id` varchar(128) COLLATE utf8_bin NOT NULL COMMENT 'group_id', `tenant_id` varchar(128) COLLATE utf8_bin DEFAULT '' COMMENT 'tenant_id', `tag_id` varchar(128) COLLATE utf8_bin NOT NULL COMMENT 'tag_id', `app_name` varchar(128) COLLATE utf8_bin DEFAULT NULL COMMENT 'app_name', `content` longtext COLLATE utf8_bin NOT NULL COMMENT 'content', `md5` varchar(32) COLLATE utf8_bin DEFAULT NULL COMMENT 'md5', `gmt_create` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间', `gmt_modified` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间', `src_user` text COLLATE utf8_bin COMMENT 'source user', `src_ip` varchar(50) COLLATE utf8_bin DEFAULT NULL COMMENT 'source ip', PRIMARY KEY (`id`), UNIQUE KEY `uk_configinfotag_datagrouptenanttag` (`data_id`,`group_id`,`tenant_id`,`tag_id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3 COLLATE=utf8_bin COMMENT='config_info_tag'; -- 正在导出表 nacos.config_info_tag 的数据:~0 rows (大约) DELETE FROM `config_info_tag`; -- 导出 表 nacos.config_tags_relation 结构 DROP TABLE IF EXISTS `config_tags_relation`; CREATE TABLE IF NOT EXISTS `config_tags_relation` ( `id` bigint NOT NULL COMMENT 'id', `tag_name` varchar(128) COLLATE utf8_bin NOT NULL COMMENT 'tag_name', `tag_type` varchar(64) COLLATE utf8_bin DEFAULT NULL COMMENT 'tag_type', `data_id` varchar(255) COLLATE utf8_bin NOT NULL COMMENT 'data_id', `group_id` varchar(128) COLLATE utf8_bin NOT NULL COMMENT 'group_id', `tenant_id` varchar(128) COLLATE utf8_bin DEFAULT '' COMMENT 'tenant_id', `nid` bigint NOT NULL AUTO_INCREMENT, PRIMARY KEY (`nid`), UNIQUE KEY `uk_configtagrelation_configidtag` (`id`,`tag_name`,`tag_type`), KEY `idx_tenant_id` (`tenant_id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3 COLLATE=utf8_bin COMMENT='config_tag_relation'; -- 正在导出表 nacos.config_tags_relation 的数据:~0 rows (大约) DELETE FROM `config_tags_relation`; -- 导出 表 nacos.group_capacity 结构 DROP TABLE IF EXISTS `group_capacity`; CREATE TABLE IF NOT EXISTS `group_capacity` ( `id` bigint unsigned NOT NULL AUTO_INCREMENT COMMENT '主键ID', `group_id` varchar(128) COLLATE utf8_bin NOT NULL DEFAULT '' COMMENT 'Group ID,空字符表示整个集群', `quota` int unsigned NOT NULL DEFAULT '0' COMMENT '配额,0表示使用默认值', `usage` int unsigned NOT NULL DEFAULT '0' COMMENT '使用量', `max_size` int unsigned NOT NULL DEFAULT '0' COMMENT '单个配置大小上限,单位为字节,0表示使用默认值', `max_aggr_count` int unsigned NOT NULL DEFAULT '0' COMMENT '聚合子配置最大个数,,0表示使用默认值', `max_aggr_size` int unsigned NOT NULL DEFAULT '0' COMMENT '单个聚合数据的子配置大小上限,单位为字节,0表示使用默认值', `max_history_count` int unsigned NOT NULL DEFAULT '0' COMMENT '最大变更历史数量', `gmt_create` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间', `gmt_modified` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间', PRIMARY KEY (`id`), UNIQUE KEY `uk_group_id` (`group_id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3 COLLATE=utf8_bin COMMENT='集群、各Group容量信息表'; -- 正在导出表 nacos.group_capacity 的数据:~0 rows (大约) DELETE FROM `group_capacity`; -- 导出 表 nacos.his_config_info 结构 DROP TABLE IF EXISTS `his_config_info`; CREATE TABLE IF NOT EXISTS `his_config_info` ( `id` bigint unsigned NOT NULL, `nid` bigint unsigned NOT NULL AUTO_INCREMENT, `data_id` varchar(255) COLLATE utf8_bin NOT NULL, `group_id` varchar(128) COLLATE utf8_bin NOT NULL, `app_name` varchar(128) COLLATE utf8_bin DEFAULT NULL COMMENT 'app_name', `content` longtext COLLATE utf8_bin NOT NULL, `md5` varchar(32) COLLATE utf8_bin DEFAULT NULL, `gmt_create` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP, `gmt_modified` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP, `src_user` text COLLATE utf8_bin, `src_ip` varchar(50) COLLATE utf8_bin DEFAULT NULL, `op_type` char(10) COLLATE utf8_bin DEFAULT NULL, `tenant_id` varchar(128) COLLATE utf8_bin DEFAULT '' COMMENT '租户字段', `encrypted_data_key` text COLLATE utf8_bin NOT NULL COMMENT '秘钥', PRIMARY KEY (`nid`), KEY `idx_gmt_create` (`gmt_create`), KEY `idx_gmt_modified` (`gmt_modified`), KEY `idx_did` (`data_id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3 COLLATE=utf8_bin COMMENT='多租户改造'; -- 正在导出表 nacos.his_config_info 的数据:~0 rows (大约) DELETE FROM `his_config_info`; -- 导出 表 nacos.permissions 结构 DROP TABLE IF EXISTS `permissions`; CREATE TABLE IF NOT EXISTS `permissions` ( `role` varchar(50) COLLATE utf8mb4_general_ci NOT NULL, `resource` varchar(255) COLLATE utf8mb4_general_ci NOT NULL, `action` varchar(8) COLLATE utf8mb4_general_ci NOT NULL, UNIQUE KEY `uk_role_permission` (`role`,`resource`,`action`) USING BTREE ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci; -- 正在导出表 nacos.permissions 的数据:~0 rows (大约) DELETE FROM `permissions`; -- 导出 表 nacos.roles 结构 DROP TABLE IF EXISTS `roles`; CREATE TABLE IF NOT EXISTS `roles` ( `username` varchar(50) COLLATE utf8mb4_general_ci NOT NULL, `role` varchar(50) COLLATE utf8mb4_general_ci NOT NULL, UNIQUE KEY `idx_user_role` (`username`,`role`) USING BTREE ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci; -- 正在导出表 nacos.roles 的数据:~1 rows (大约) DELETE FROM `roles`; INSERT INTO `roles` (`username`, `role`) VALUES ('nacos', 'ROLE_ADMIN'); -- 导出 表 nacos.tenant_capacity 结构 DROP TABLE IF EXISTS `tenant_capacity`; CREATE TABLE IF NOT EXISTS `tenant_capacity` ( `id` bigint unsigned NOT NULL AUTO_INCREMENT COMMENT '主键ID', `tenant_id` varchar(128) COLLATE utf8_bin NOT NULL DEFAULT '' COMMENT 'Tenant ID', `quota` int unsigned NOT NULL DEFAULT '0' COMMENT '配额,0表示使用默认值', `usage` int unsigned NOT NULL DEFAULT '0' COMMENT '使用量', `max_size` int unsigned NOT NULL DEFAULT '0' COMMENT '单个配置大小上限,单位为字节,0表示使用默认值', `max_aggr_count` int unsigned NOT NULL DEFAULT '0' COMMENT '聚合子配置最大个数', `max_aggr_size` int unsigned NOT NULL DEFAULT '0' COMMENT '单个聚合数据的子配置大小上限,单位为字节,0表示使用默认值', `max_history_count` int unsigned NOT NULL DEFAULT '0' COMMENT '最大变更历史数量', `gmt_create` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间', `gmt_modified` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间', PRIMARY KEY (`id`), UNIQUE KEY `uk_tenant_id` (`tenant_id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3 COLLATE=utf8_bin COMMENT='租户容量信息表'; -- 正在导出表 nacos.tenant_capacity 的数据:~0 rows (大约) DELETE FROM `tenant_capacity`; -- 导出 表 nacos.tenant_info 结构 DROP TABLE IF EXISTS `tenant_info`; CREATE TABLE IF NOT EXISTS `tenant_info` ( `id` bigint NOT NULL AUTO_INCREMENT COMMENT 'id', `kp` varchar(128) COLLATE utf8_bin NOT NULL COMMENT 'kp', `tenant_id` varchar(128) COLLATE utf8_bin DEFAULT '' COMMENT 'tenant_id', `tenant_name` varchar(128) COLLATE utf8_bin DEFAULT '' COMMENT 'tenant_name', `tenant_desc` varchar(256) COLLATE utf8_bin DEFAULT NULL COMMENT 'tenant_desc', `create_source` varchar(32) COLLATE utf8_bin DEFAULT NULL COMMENT 'create_source', `gmt_create` bigint NOT NULL COMMENT '创建时间', `gmt_modified` bigint NOT NULL COMMENT '修改时间', PRIMARY KEY (`id`), UNIQUE KEY `uk_tenant_info_kptenantid` (`kp`,`tenant_id`), KEY `idx_tenant_id` (`tenant_id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3 COLLATE=utf8_bin COMMENT='tenant_info'; -- 正在导出表 nacos.tenant_info 的数据:~0 rows (大约) DELETE FROM `tenant_info`; -- 导出 表 nacos.users 结构 DROP TABLE IF EXISTS `users`; CREATE TABLE IF NOT EXISTS `users` ( `username` varchar(50) COLLATE utf8mb4_general_ci NOT NULL, `password` varchar(500) COLLATE utf8mb4_general_ci NOT NULL, `enabled` tinyint(1) NOT NULL, PRIMARY KEY (`username`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci; -- 正在导出表 nacos.users 的数据:~1 rows (大约) DELETE FROM `users`; INSERT INTO `users` (`username`, `password`, `enabled`) VALUES ('nacos', '$2a$10$EuWPZHzz32dJN7jexM34MOeYirDdFAZm2kuWj7VEOJhhZkDrxfvUu', 1); /*!40103 SET TIME_ZONE=IFNULL(@OLD_TIME_ZONE, 'system') */; /*!40101 SET SQL_MODE=IFNULL(@OLD_SQL_MODE, '') */; /*!40014 SET FOREIGN_KEY_CHECKS=IFNULL(@OLD_FOREIGN_KEY_CHECKS, 1) */; /*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */; /*!40111 SET SQL_NOTES=IFNULL(@OLD_SQL_NOTES, 1) */;
2.配置nacos.env
PREFER_HOST_MODE=hostname MODE=standalone SPRING_DATASOURCE_PLATFORM=mysql MYSQL_SERVICE_HOST=192.168.88.95 MYSQL_SERVICE_DB_NAME=nacos MYSQL_SERVICE_PORT=3306 MYSQL_SERVICE_USER=root MYSQL_SERVICE_PASSWORD=123 MYSQL_SERVICE_DB_PARAM=characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=Asia/Shanghai
3.上传至虚拟机中,在docker执行
docker run -d \ --name nacos \ --env-file ./nacos/custom.env \ -p 8848:8848 \ -p 9848:9848 \ -p 9849:9849 \ --restart=always \ nacos/nacos-server:v2.1.0-slim
访问http://你的ip:8848/nacos/,账号密码都是nacos
服务注册:
引入依赖 配置yml
<!--nacos 服务注册发现--> <dependency> <groupId>com.alibaba.cloud</groupId> <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId> </dependency>
spring: application: name: item-service # 微服务名称 cloud: nacos: discovery: server-addr: 192.168.88.95:8848
服务发现:
引入依赖 配置yml ....
服务发现
// 根据服务名获取服务的实际列表 List<ServiceInstance> instances = discoveryClient.getInstances("item-service"); if(CollUtil.isEmpty(instances)){ return; } // 负载均衡:随机 ServiceInstance instance = instances.get(RandomUtil.randomInt(instances.size()));
标签:COMMENT,服务,DEFAULT,utf8,nacos,COLLATE,注册,NULL,id From: https://www.cnblogs.com/kun1790051360/p/18151379