SpringCloud Alibaba微服务实战一 基础环境准备

目录

介绍

版本组件介绍

Docker Compose安装

Nacos 服务注册与发现

简介

安装 Nacos

容器化 MySQL

导入nacos的数据表

开启端口

测试nacos配置

微服务框架搭建

创建父工程

创建子模块

配置XML

创建启动项 配置yaml

Mysql创建数据库

CodeGenerator 模板生成器

测试

---

介绍

Spring Cloud Alibaba 致力于提供微服务开发的一站式解决方案。此项目包含开发分布式应用微服务的必需组件，方便开发者通过 Spring Cloud 编程模型轻松使用这些组件来开发分布式应用服务。

依托 Spring Cloud Alibaba，您只需要添加一些注解和少量配置，就可以将 Spring Cloud 应用接入阿里微服务解决方案，通过阿里中间件来迅速搭建分布式应用系统。

版本组件介绍

官方版本说明：版本说明 · alibaba/spring-cloud-alibaba Wiki · GitHub

本次 Spring Cloud Alibaba 版本

本次 Spring Cloud Alibaba 版本及其自身所适配的各组件对应版本

内容主要基于三个微服务：账户服务AccountService，账单服务RecordService，用户服务UserService

用到的组件有：

• 注册中心、配置中心 Nacos
• 限流 Sentinel
• 分布式事务 Seata
• 网关 SpringCloud Gateway
• 认证授权 Spring Cloud Oauth2
• docker、docker-compose

由于用到的组件相对较多，部署会很繁琐，最关键的是没有资源服务器，所以在开发过程中我会逐渐将一些组件使用docker-compose部署

本篇内容就是使用Dokcer-compose部署Nacos，Sentinel，MySQL，作为后面的文章的基础环境

Docker Compose安装

// 下载1.25.0 docker compose
sudo curl -L "https://github.com/docker/compose/releases/download/1.25.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

// 添加可执行权限
sudo chmod +x /usr/local/bin/docker-compose

// 测试安装
docker-compose --version

Nacos 服务注册与发现

简介

        Nacos 致力于帮助您发现、配置和管理微服务。Nacos 提供了一组简单易用的特性集，帮助您快速实现动态服务发现、服务配置、服务元数据及流量管理。

        Nacos 帮助您更敏捷和容易地构建、交付和管理微服务平台。 Nacos 是构建以“服务”为中心的现代应用架构 (例如微服务范式、云原生范式) 的服务基础设施。

安装 Nacos

docker pull nacos/nacos-server:1.4.1

nacos中的数据是存放在内存中的，一旦重启nacos数据就会丢失，所以说nacos一定要配置持久化

由于nacos需要依赖于MySQL作为资源存储，所以在编写完整docker-compose之前我会先用docker启动临时的mysql容器，然后准备好nacos需要的数据库

容器化 MySQL

先关闭本机mysql

docker rm -f $(docker ps -qa)

启动临时容器

docker run --rm --name mysql -e MYSQL_ROOT_PASSWORD=123456 -v /app/cloud/mysql/data:/var/lib/mysql -p 3306:3306 -d mysql:5.7

导入nacos的数据表

mysql客户端连接你的容器

新建数据库：cacos_config

 导入sql

SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;

-- ----------------------------
-- Table structure for config_info
-- ----------------------------
DROP TABLE IF EXISTS `config_info`;
CREATE TABLE `config_info`  (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT 'id',
  `data_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'data_id',
  `group_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,
  `content` longtext CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'content',
  `md5` varchar(32) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'md5',
  `gmt_create` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `gmt_modified` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间',
  `src_user` text CHARACTER SET utf8 COLLATE utf8_bin NULL COMMENT 'source user',
  `src_ip` varchar(50) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'source ip',
  `app_name` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,
  `tenant_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT '' COMMENT '租户字段',
  `c_desc` varchar(256) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,
  `c_use` varchar(64) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,
  `effect` varchar(64) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,
  `type` varchar(64) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,
  `c_schema` text CHARACTER SET utf8 COLLATE utf8_bin NULL,
  PRIMARY KEY (`id`) USING BTREE,
  UNIQUE INDEX `uk_configinfo_datagrouptenant`(`data_id`, `group_id`, `tenant_id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 19 CHARACTER SET = utf8 COLLATE = utf8_bin COMMENT = 'config_info' ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of config_info
-- ----------------------------
INSERT INTO `config_info` VALUES (18, 'config_info.yaml', 'DEFAULT_GROUP', 'name: kuang', '46d09e283c2c06777cb9b27f6ab9a629', '2022-06-17 07:54:45', '2022-06-17 07:54:45', NULL, '43.250.200.118', '', '', '测试', NULL, NULL, 'yaml', NULL);

-- ----------------------------
-- Table structure for config_info_aggr
-- ----------------------------
DROP TABLE IF EXISTS `config_info_aggr`;
CREATE TABLE `config_info_aggr`  (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT 'id',
  `data_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'data_id',
  `group_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'group_id',
  `datum_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'datum_id',
  `content` longtext CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT '内容',
  `gmt_modified` datetime(0) NOT NULL COMMENT '修改时间',
  `app_name` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,
  `tenant_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT '' COMMENT '租户字段',
  PRIMARY KEY (`id`) USING BTREE,
  UNIQUE INDEX `uk_configinfoaggr_datagrouptenantdatum`(`data_id`, `group_id`, `tenant_id`, `datum_id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 1 CHARACTER SET = utf8 COLLATE = utf8_bin COMMENT = '增加租户字段' ROW_FORMAT = Dynamic;

-- ----------------------------
-- Table structure for config_info_beta
-- ----------------------------
DROP TABLE IF EXISTS `config_info_beta`;
CREATE TABLE `config_info_beta`  (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT 'id',
  `data_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'data_id',
  `group_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'group_id',
  `app_name` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'app_name',
  `content` longtext CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'content',
  `beta_ips` varchar(1024) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'betaIps',
  `md5` varchar(32) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'md5',
  `gmt_create` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `gmt_modified` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间',
  `src_user` text CHARACTER SET utf8 COLLATE utf8_bin NULL COMMENT 'source user',
  `src_ip` varchar(50) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'source ip',
  `tenant_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT '' COMMENT '租户字段',
  PRIMARY KEY (`id`) USING BTREE,
  UNIQUE INDEX `uk_configinfobeta_datagrouptenant`(`data_id`, `group_id`, `tenant_id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 1 CHARACTER SET = utf8 COLLATE = utf8_bin COMMENT = 'config_info_beta' ROW_FORMAT = Dynamic;

-- ----------------------------
-- Table structure for config_info_tag
-- ----------------------------
DROP TABLE IF EXISTS `config_info_tag`;
CREATE TABLE `config_info_tag`  (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT 'id',
  `data_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'data_id',
  `group_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'group_id',
  `tenant_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT '' COMMENT 'tenant_id',
  `tag_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'tag_id',
  `app_name` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'app_name',
  `content` longtext CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'content',
  `md5` varchar(32) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'md5',
  `gmt_create` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `gmt_modified` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间',
  `src_user` text CHARACTER SET utf8 COLLATE utf8_bin NULL COMMENT 'source user',
  `src_ip` varchar(50) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'source ip',
  PRIMARY KEY (`id`) USING BTREE,
  UNIQUE INDEX `uk_configinfotag_datagrouptenanttag`(`data_id`, `group_id`, `tenant_id`, `tag_id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 1 CHARACTER SET = utf8 COLLATE = utf8_bin COMMENT = 'config_info_tag' ROW_FORMAT = Dynamic;

-- ----------------------------
-- Table structure for config_tags_relation
-- ----------------------------
DROP TABLE IF EXISTS `config_tags_relation`;
CREATE TABLE `config_tags_relation`  (
  `id` bigint(20) NOT NULL COMMENT 'id',
  `tag_name` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'tag_name',
  `tag_type` varchar(64) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'tag_type',
  `data_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'data_id',
  `group_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'group_id',
  `tenant_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT '' COMMENT 'tenant_id',
  `nid` bigint(20) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`nid`) USING BTREE,
  UNIQUE INDEX `uk_configtagrelation_configidtag`(`id`, `tag_name`, `tag_type`) USING BTREE,
  INDEX `idx_tenant_id`(`tenant_id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 1 CHARACTER SET = utf8 COLLATE = utf8_bin COMMENT = 'config_tag_relation' ROW_FORMAT = Dynamic;

-- ----------------------------
-- Table structure for group_capacity
-- ----------------------------
DROP TABLE IF EXISTS `group_capacity`;
CREATE TABLE `group_capacity`  (
  `id` bigint(20) UNSIGNED NOT NULL AUTO_INCREMENT COMMENT '主键ID',
  `group_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '' COMMENT 'Group ID，空字符表示整个集群',
  `quota` int(10) UNSIGNED NOT NULL DEFAULT 0 COMMENT '配额，0表示使用默认值',
  `usage` int(10) UNSIGNED NOT NULL DEFAULT 0 COMMENT '使用量',
  `max_size` int(10) 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(10) 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(10) 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(10) UNSIGNED NOT NULL DEFAULT 0 COMMENT '最大变更历史数量',
  `gmt_create` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `gmt_modified` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间',
  PRIMARY KEY (`id`) USING BTREE,
  UNIQUE INDEX `uk_group_id`(`group_id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 1 CHARACTER SET = utf8 COLLATE = utf8_bin COMMENT = '集群、各Group容量信息表' ROW_FORMAT = Dynamic;

-- ----------------------------
-- Table structure for his_config_info
-- ----------------------------
DROP TABLE IF EXISTS `his_config_info`;
CREATE TABLE `his_config_info`  (
  `id` bigint(64) UNSIGNED NOT NULL,
  `nid` bigint(20) UNSIGNED NOT NULL AUTO_INCREMENT,
  `data_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
  `group_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
  `app_name` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'app_name',
  `content` longtext CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
  `md5` varchar(32) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,
  `gmt_create` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `gmt_modified` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `src_user` text CHARACTER SET utf8 COLLATE utf8_bin NULL,
  `src_ip` varchar(50) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,
  `op_type` char(10) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,
  `tenant_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT '' COMMENT '租户字段',
  PRIMARY KEY (`nid`) USING BTREE,
  INDEX `idx_gmt_create`(`gmt_create`) USING BTREE,
  INDEX `idx_gmt_modified`(`gmt_modified`) USING BTREE,
  INDEX `idx_did`(`data_id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 26 CHARACTER SET = utf8 COLLATE = utf8_bin COMMENT = '多租户改造' ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of his_config_info
-- ----------------------------
INSERT INTO `his_config_info` VALUES (0, 23, 'config_info.yaml', 'DEFAULT_GROUP', '', 'name: kaung', 'c99be43b88caa40fb2663ad3b9a59684', '2022-06-17 07:36:19', '2022-06-17 07:36:20', NULL, '43.250.200.118', 'I', '');
INSERT INTO `his_config_info` VALUES (17, 24, 'config_info.yaml', 'DEFAULT_GROUP', '', 'name: kaung', 'c99be43b88caa40fb2663ad3b9a59684', '2022-06-17 07:37:05', '2022-06-17 07:37:05', NULL, '43.250.200.118', 'D', '');
INSERT INTO `his_config_info` VALUES (0, 25, 'config_info.yaml', 'DEFAULT_GROUP', '', 'name: kuang', '46d09e283c2c06777cb9b27f6ab9a629', '2022-06-17 07:54:45', '2022-06-17 07:54:45', NULL, '43.250.200.118', 'I', '');

-- ----------------------------
-- Table structure for permissions
-- ----------------------------
DROP TABLE IF EXISTS `permissions`;
CREATE TABLE `permissions`  (
  `role` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  `resource` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  `action` varchar(8) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  UNIQUE INDEX `uk_role_permission`(`role`, `resource`, `action`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;

-- ----------------------------
-- Table structure for roles
-- ----------------------------
DROP TABLE IF EXISTS `roles`;
CREATE TABLE `roles`  (
  `username` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  `role` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  UNIQUE INDEX `idx_user_role`(`username`, `role`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of roles
-- ----------------------------
INSERT INTO `roles` VALUES ('nacos', 'ROLE_ADMIN');

-- ----------------------------
-- Table structure for tenant_capacity
-- ----------------------------
DROP TABLE IF EXISTS `tenant_capacity`;
CREATE TABLE `tenant_capacity`  (
  `id` bigint(20) UNSIGNED NOT NULL AUTO_INCREMENT COMMENT '主键ID',
  `tenant_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '' COMMENT 'Tenant ID',
  `quota` int(10) UNSIGNED NOT NULL DEFAULT 0 COMMENT '配额，0表示使用默认值',
  `usage` int(10) UNSIGNED NOT NULL DEFAULT 0 COMMENT '使用量',
  `max_size` int(10) 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(10) UNSIGNED NOT NULL DEFAULT 0 COMMENT '聚合子配置最大个数',
  `max_aggr_size` int(10) 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(10) UNSIGNED NOT NULL DEFAULT 0 COMMENT '最大变更历史数量',
  `gmt_create` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `gmt_modified` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间',
  PRIMARY KEY (`id`) USING BTREE,
  UNIQUE INDEX `uk_tenant_id`(`tenant_id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 1 CHARACTER SET = utf8 COLLATE = utf8_bin COMMENT = '租户容量信息表' ROW_FORMAT = Dynamic;

-- ----------------------------
-- Table structure for tenant_info
-- ----------------------------
DROP TABLE IF EXISTS `tenant_info`;
CREATE TABLE `tenant_info`  (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT 'id',
  `kp` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'kp',
  `tenant_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT '' COMMENT 'tenant_id',
  `tenant_name` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT '' COMMENT 'tenant_name',
  `tenant_desc` varchar(256) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'tenant_desc',
  `create_source` varchar(32) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'create_source',
  `gmt_create` bigint(20) NOT NULL COMMENT '创建时间',
  `gmt_modified` bigint(20) NOT NULL COMMENT '修改时间',
  PRIMARY KEY (`id`) USING BTREE,
  UNIQUE INDEX `uk_tenant_info_kptenantid`(`kp`, `tenant_id`) USING BTREE,
  INDEX `idx_tenant_id`(`tenant_id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 4 CHARACTER SET = utf8 COLLATE = utf8_bin COMMENT = 'tenant_info' ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of tenant_info
-- ----------------------------
INSERT INTO `tenant_info` VALUES (1, '1', 'cdc378f4-114b-471b-8732-b7d38bcb02ea', 'orders', '订单的命名空间', 'nacos', 1648718577421, 1648718577421);
INSERT INTO `tenant_info` VALUES (2, '1', 'faf33017-b8c2-48fa-9b29-09d644006946', 'users', '用户的命名空间', 'nacos', 1648718588816, 1648718588816);
INSERT INTO `tenant_info` VALUES (3, '1', '0cbe8b45-e878-4c59-9ab8-5b8616ac4d57', 'gateway', '网关', 'nacos', 1648881242577, 1648881242577);

-- ----------------------------
-- Table structure for users
-- ----------------------------
DROP TABLE IF EXISTS `users`;
CREATE TABLE `users`  (
  `username` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  `password` varchar(500) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  `enabled` tinyint(1) NOT NULL,
  PRIMARY KEY (`username`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of users
-- ----------------------------
INSERT INTO `users` VALUES ('nacos', '$2a$10$EuWPZHzz32dJN7jexM34MOeYirDdFAZm2kuWj7VEOJhhZkDrxfvUu', 1);

SET FOREIGN_KEY_CHECKS = 1;

配置docker-compse文件

//进入指定目录
cd /usr/local/

//创建文件
mkdir docker

//进入创建好的docker文件
cd docker/

//创建编辑
vi docker-compose.yaml

docker-compse内容，大家可以自行修改

version: "3"
services:
  mysql:
    container_name: mysql
    image: mysql:5.7
    environment:
      - MYSQL_ROOT_PASSWORD=123456
    volumes:
      - /app/cloud/mysql/data:/var/lib/mysql
    ports:
      - "3306:3306"
    restart: always

  nacos:
    image: nacos/nacos-server:1.4.1
    container_name: nacos
    hostname: nacos
    restart: always
    environment:
      - MODE=standalone
      - TZ=Asia/Shanghai
      - NACOS_SERVER_PORT=8848
      - SPRING_DATASOURCE_PLATFORM=mysql
      - MYSQL_SERVICE_HOST=192.78.224.108
      - MYSQL_SERVICE_PORT=3306
      - MYSQL_SERVICE_DB_NAME=nacos_config
      - MYSQL_SERVICE_USER=root
      - MYSQL_SERVICE_PASSWORD=123456
      - PREFER_HOST_MODE=hostname
    volumes:
      - /app/cloud/nacos/logs:/home/nacos/logs
    ports:
      - "8848:8848"

192.78.224.108 需改成你的IP地址

开启端口

使用云服务器的：配置规则 8848

未使用云服务器的

// 查看防火墙状态
systemctl status firewalld
systemctl stop firewalld
systemctl start firewalld

// 开启端口
firewall-cmd --zone=public --add-port=8848/tcp --permanent

// 查询端口号8848是否开启
firewall-cmd --query-port=8848/tcp

// 重启防火墙
firewall-cmd --reload

// 查询有哪些端口是开启的
firewall-cmd --list-port

 启动nacos

docker-compose up -d nacos

测试nacos配置

 账户密码：nacos

添加配置

 创建：Properties 或 yaml 配置

配置完成查看数据库是否存在该数据

微服务框架搭建

创建父工程

        项目昵称：spring-cloud-alibaba

        pom.xml配置

        1.8
        
        2021.1
        
        2020.0.1
        
        3.5.1
        
        8.0.13
        
        3.5.2
        
        2.3
        
        2.0.7
        
        1.18.24



    org.springframework.boot
    spring-boot-starter-parent
    2.4.2



    
            
            
                com.alibaba.cloud
                spring-cloud-alibaba-dependencies
                ${springcloud-alibaba-version}
                pom
                import
            

            
            
                org.springframework.cloud
                spring-cloud-dependencies
                ${springcloud-version}
                pom
                import
            

            
            
                com.baomidou
                mybatis-plus-boot-starter
                ${mp-version}
            

            
            
                mysql
                mysql-connector-java
                ${mysql-version}
            

            
            
                com.baomidou
                mybatis-plus-generator
                ${mp-generator}
            

            
            
                org.apache.velocity
                velocity-engine-core
                ${mp-velocity}
            

            
            
                com.github.xiaoymin
                knife4j-spring-boot-starter
                ${knife4j-version}
            

            
            
                org.projectlombok
                lombok
                ${lk-version}
            
    

        删除  .dea 与 src 文件

创建子模块

在你的父工程中建立多个模块的Maven项目

公共CommonService

账户服务AccountService

账单服务RecordService

用户服务UserService

 配置XML

 common-service

 pom.xml如下

        
        
            org.springframework.boot
            spring-boot-starter-web
        

        
        
            com.baomidou
            mybatis-plus-boot-starter
        

        
        
            mysql
            mysql-connector-java
        

        
        
            com.baomidou
            mybatis-plus-generator
        

        
        
            org.apache.velocity
            velocity-engine-core
        

        
        
            com.github.xiaoymin
            knife4j-spring-boot-starter
        

        
        
            org.projectlombok
            lombok
        

user-service，record-service，account-service 都引入 common

    
    
        org.example
        common-service
        1.0-SNAPSHOT
    
    
    
    
        com.alibaba.cloud
        spring-cloud-starter-alibaba-nacos-discovery
    

创建启动项 配置yaml

user-service

src/main/java下创建 com/kuang/user/ 目录 并创建 启动类 UserApplication

UserApplication.java

package com.kuang.user;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

@SpringBootApplication
//开启服务注册与发现
@EnableDiscoveryClient
public class UserApplication {

    public static void main(String[] args) {
        SpringApplication.run(UserApplication.class,args);
    }
}

application.yaml

server:
  port: 8081

spring:
  application:
    name: user-service
  cloud:
    nacos:    #将这个服务注册到Nacos中
      discovery:
       server-addr: 192.74.102.54:8848  #换成你的 IP:8848

测试运行

 nacos查看

分别为 account-service，record-service 配置不同的yaml

server:
  port: 8082 #需要更改 account-service 8082 ，record-service 8083

spring:
  application:
    name: account-service #需要更改为服务名字
  cloud:
    nacos:    #将这个服务注册到Nacos中
      discovery:
       server-addr: 192.74.102.54:8848  #换成你的 IP:8848

分别为 account-service，record-service 创建如 user-service 的启动类 测试能否正常运行

Mysql创建数据库

库名：onlinebank

导入数据

SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;

-- ----------------------------
-- Table structure for account
-- ----------------------------
DROP TABLE IF EXISTS `account`;
CREATE TABLE `account`  (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `card_no` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `password` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `balance` int(6) NULL DEFAULT NULL,
  `status` int(11) NULL DEFAULT NULL,
  `user_id` int(11) NULL DEFAULT NULL COMMENT '关联用户的id',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 5 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of account
-- ----------------------------
INSERT INTO `account` VALUES (1, '1', '110', 300, 1, 1);
INSERT INTO `account` VALUES (2, '2', '123456', 300, 1, 1);
INSERT INTO `account` VALUES (3, '3', '123123', 300, 0, 1);
INSERT INTO `account` VALUES (4, '4', '456456', 200, 0, 1);

-- ----------------------------
-- Table structure for transaction_record
-- ----------------------------
DROP TABLE IF EXISTS `transaction_record`;
CREATE TABLE `transaction_record`  (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `card_no` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `transaction_date` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `amout` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `balance` int(19) NULL DEFAULT NULL,
  `transaction_type` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `remark` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 27 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of transaction_record
-- ----------------------------
INSERT INTO `transaction_record` VALUES (22, '1', '2022-6-17', '100', 500, '取款', '备注1');
INSERT INTO `transaction_record` VALUES (23, '2', '2022-6-17', '100', 200, '存款', '备注1');
INSERT INTO `transaction_record` VALUES (24, '1', '2022-6-17', '100', 400, '取款', '备注1');
INSERT INTO `transaction_record` VALUES (25, '3', '2022-6-17', '100', 300, '存款', '备注1');
INSERT INTO `transaction_record` VALUES (26, '1', '2022-6-17', '100', 300, '取款', '转账给2账户100');
INSERT INTO `transaction_record` VALUES (27, '2', '2022-6-17', '100', 300, '存款', '收到1账户转账100');

-- ----------------------------
-- Table structure for user
-- ----------------------------
DROP TABLE IF EXISTS `user`;
CREATE TABLE `user`  (
  `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '编号',
  `username` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '用户名',
  `phone` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '手机号',
  `create_time` datetime(0) NOT NULL COMMENT '创建时间',
  `update_time` datetime(0) NOT NULL COMMENT '修改时间',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of user
-- ----------------------------
INSERT INTO `user` VALUES (1, 'kuang', '17925768888', '2022-06-17 15:43:57', '2022-06-17 15:43:59');

SET FOREIGN_KEY_CHECKS = 1;

common-service

        创建如下包与类

CodeGenerator 模板生成器

import com.baomidou.mybatisplus.annotation.FieldFill;
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.core.exceptions.MybatisPlusException;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.config.*;
import com.baomidou.mybatisplus.generator.config.querys.MySqlQuery;
import com.baomidou.mybatisplus.generator.config.rules.DateType;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
import com.baomidou.mybatisplus.generator.fill.Column;
import com.baomidou.mybatisplus.generator.fill.Property;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;

/**
 * @program: spring-cloud-alibaba
 * @description: 代码生成器
 * @author: Mr.Kuang
 * @create: 2022-05-18 10:14
 **/
public class CodeGenerator {

    public static void main(String[] args) {
        /*数据库配置*/
        DataSourceConfig dataSourceConfig =
                new DataSourceConfig
                        .Builder("jdbc:mysql://112.74.102.54:3306/onlinebank?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true","root","")
                        .dbQuery(new MySqlQuery())
                        .build();


        /*创建一共代码生成器对象*/
        AutoGenerator generator = new AutoGenerator(dataSourceConfig);



        //String property = System.getProperty(scanner("请输入项目路径"));


        /*全局配置*/
        GlobalConfig globalConfig = new GlobalConfig.Builder()
                .fileOverride()
                .outputDir(scanner("请输入你的项目路径") + "/src/main/java")
                .author("HaiGee").disableOpenDir()
                //.enableKotlin()
                //.enableSwagger()
                .dateType(DateType.TIME_PACK)
                .commentDate("yyyy-MM-dd")
                .build();



        generator.global(globalConfig);


        /*包配置(PackageConfig)*/
        PackageConfig packageConfig = new PackageConfig.Builder()
                .parent("com.kuang.common")
                //.moduleName("blog")
                .entity("entity")
                .service("service")
                .serviceImpl("service.impl")
                .mapper("mapper")
                .xml("mapper")
                .controller("controller")
                //.other("other")
                //.pathInfo(Collections.singletonMap(OutputFile.mapper, "D://"))
                //.pathInfo(Collections.singletonMap(OutputFile.xml, "D://"))
                .build();

        generator.packageInfo(packageConfig);


        TemplateConfig templateConfig = new TemplateConfig.Builder()
                .disable(TemplateType.ENTITY)
                .entity("/templates/entity.java")
                .service("/templates/service.java")
                .serviceImpl("/templates/serviceImpl.java")
                .mapper("/templates/mapper.java")
                .xml("/templates/mapper.xml")
                .controller("/templates/controller.java")
                .build();

        generator.template(templateConfig);

        /*策略配置*/
        StrategyConfig strategyConfig = new StrategyConfig.Builder()
                .enableCapitalMode()
                .enableSkipView()
                .disableSqlFilter()
                //.likeTable(new LikeTable("USER"))
                .addInclude(getTables(scanner("请输入表名，多个英文逗号分隔？所有输入 all")))
                .addTablePrefix("transaction_")
                //.addFieldSuffix("_flag")
                /*   .entityBuilder()
                   .controllerBuilder()
                   .mapperBuilder()
                   .serviceBuilder()*/
                .build();

        strategyConfig.entityBuilder()
                //.superClass(BaseEntity.class)
                .disableSerialVersionUID()
                .enableChainModel()
                .enableLombok()
                .enableRemoveIsPrefix()
                .enableTableFieldAnnotation()
                .enableActiveRecord()
                .versionColumnName("version")
                .versionPropertyName("version")
                .logicDeleteColumnName("deleted")
                .logicDeletePropertyName("deleted")
                .naming(NamingStrategy.underline_to_camel)
                .columnNaming(NamingStrategy.underline_to_camel)
                //.addSuperEntityColumns("id", "created_by", "created_time", "updated_by", "updated_time")
                //.addIgnoreColumns("age")
                .addTableFills(new Column("create_time", FieldFill.INSERT))
                .addTableFills(new Property("update_time", FieldFill.INSERT_UPDATE))
                .idType(IdType.AUTO)
                .formatFileName("%s")
                .build();

        strategyConfig.controllerBuilder()
                //.superClass(BaseController.class)
                //.enableHyphenStyle()
                .enableRestStyle()
                .formatFileName("%sController")
                .build();

        strategyConfig.serviceBuilder()
                //.superServiceClass(BaseService.class)
                // .superServiceImplClass(BaseServiceImpl.class)
                .formatServiceFileName("%sService")
                .formatServiceImplFileName("%sServiceImp")
                .build();

        strategyConfig
                .mapperBuilder()
                .superClass(BaseMapper.class)
                //.enableMapperAnnotation()
                //.enableBaseResultMap()
                //.enableBaseColumnList()
                //.cache(MyMapperCache.class)
                .formatMapperFileName("%sMapper")
                .formatXmlFileName("%sMapper")
                .build();


        generator.strategy(strategyConfig);

        /*执行代码生成器*/
        generator.execute();
    }

    // 处理 all 情况
    protected static List getTables(String tables) {
        return "all".equals(tables) ? Collections.emptyList() : Arrays.asList(tables.split(","));
    }

    /**
     * 

     * 读取控制台内容
     * 
     */
    public static String scanner(String tip) {
        Scanner scanner = new Scanner(System.in);
        StringBuilder help = new StringBuilder();
        help.append("请输入" + tip + "：");
        System.out.println(help.toString());
        if (scanner.hasNext()) {
            String ipt = scanner.next();
            if (StringUtils.isNotBlank(ipt)) {
                return ipt;
            }
        }
        throw new MybatisPlusException("请输入正确的" + tip + "！");
    }
}

按照你的路径自行更改

运行

执行成功后我们会获得这4个包

 除entity实体类包不动，其他3个分别放置于对应的服务内 外加一个feign包

 这里以user-service为例

 mapper层添加@Mapper注解

 

 为每个服务的 yaml 新增配置

server:
  port: 8081

spring:
  application:
    name: user-service
  cloud:
    nacos:
      discovery:
       server-addr: 192.74.102.54:8848
#下面为本次新增的配置
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://192.74.102.54:3306/onlinebank?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true
    username: root
    password: 123456


mybatis-plus:
  mapper-locations: classpath*:/mapper/*.xml
  configuration:
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
    map-underscore-to-camel-case: true
  type-aliases-package: com.kuang.common.entity

 测试

为user-service controller 添加一个测试接口

package com.kuang.user.controller;

import com.kuang.common.entity.User;
import com.kuang.user.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

/**
 * 

 *  前端控制器
 * 
 *
 * @author HaiGee
 * @since 2022-06-17
 */
@RestController
@RequestMapping("/user")
public class UserController {

    @Autowired
    UserService userService;

    @GetMapping("/getUserList")
    public List getUserList(){
        List users = userService.list();
        return users;
    }

}

 运行测试能否获得数据

访问地址 需要查看nacos的服务详情

 测试