SpringBoot+Vue豆宝社区前后端分离项目手把手实战系列教程02---创建后端工程

豆宝社区项目实战视频教程简介

本项目实战视频教程全部免费，配套代码完全开源。手把手从零开始搭建一个目前应用最广泛的Springboot+Vue前后端分离多用户社区项目。本项目难度适中，为便于大家学习，每一集视频教程对应在Github上的每一次提交。

image

代码开源地址

前端
后端

视频教程地址

视频教程

前端技术栈

Vue
Vuex
Vue Router
Axios
Bulma
Buefy
Element
Vditor
DarkReader

后端技术栈

Spring Boot
Mysql
Mybatis
MyBatis-Plus
Spring Security
JWT
Lombok

搭建后端工程

0.导入sql

在数据库导入

/*
 Navicat Premium Data Transfer
 Source Server         : localhost
 Source Server Type    : MySQL
 Source Server Version : 80022
 Source Host           : localhost:3306
 Source Schema         : doubao
 Target Server Type    : MySQL
 Target Server Version : 80022
 File Encoding         : 65001
*/

SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;

-- ----------------------------
-- Table structure for bms_billboard
-- ----------------------------
DROP TABLE IF EXISTS `bms_billboard`;
CREATE TABLE `bms_billboard`  (
  `id` int NOT NULL AUTO_INCREMENT COMMENT '主键',
  `content` varchar(255) CHARACTER SET utf8mb4 NOT NULL COMMENT '公告',
  `create_time` datetime NULL DEFAULT NULL COMMENT '公告时间',
  `show` tinyint(1) NULL DEFAULT NULL COMMENT '1：展示中，0：过期',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 6 CHARACTER SET = utf8mb4  COMMENT = '全站公告' ROW_FORMAT = DYNAMIC;

-- ----------------------------
-- Records of bms_billboard
-- ----------------------------
INSERT INTO `bms_billboard` VALUES (2, 'R1.0 开始已实现护眼模式 ,妈妈再也不用担心我的眼睛了。', '2020-11-19 17:16:19', 0);
INSERT INTO `bms_billboard` VALUES (4, '系统已更新至最新版1.0.1', NULL, 1);


-- ----------------------------
-- Table structure for bms_follow
-- ----------------------------
DROP TABLE IF EXISTS `bms_follow`;
CREATE TABLE `bms_follow`  (
  `id` int NOT NULL AUTO_INCREMENT COMMENT '主键',
  `parent_id` varchar(20) CHARACTER SET utf8mb4 NULL DEFAULT NULL COMMENT '被关注人ID',
  `follower_id` varchar(20) CHARACTER SET utf8mb4 NULL DEFAULT NULL COMMENT '关注人ID',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 130 CHARACTER SET = utf8mb4  COMMENT = '用户关注' ROW_FORMAT = DYNAMIC;

-- ----------------------------
-- Records of bms_follow
-- ----------------------------
INSERT INTO `bms_follow` VALUES (65, '1329723594994229250', '1317498859501797378');
INSERT INTO `bms_follow` VALUES (85, '1332912847614083073', '1332636310897664002');
INSERT INTO `bms_follow` VALUES (129, '1349290158897311745', '1349618748226658305');

-- ----------------------------
-- Table structure for bms_post
-- ----------------------------
DROP TABLE IF EXISTS `bms_post`;
CREATE TABLE `bms_post`  (
  `id` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '主键',
  `title` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '' COMMENT '标题',
  `content` longtext CHARACTER SET utf8 COLLATE utf8_general_ci NULL COMMENT 'markdown内容',
  `user_id` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '作者ID',
  `comments` int NOT NULL DEFAULT 0 COMMENT '评论统计',
  `collects` int NOT NULL DEFAULT 0 COMMENT '收藏统计',
  `view` int NOT NULL DEFAULT 0 COMMENT '浏览统计',
  `top` bit(1) NOT NULL DEFAULT b'0' COMMENT '是否置顶，1-是，0-否',
  `essence` bit(1) NOT NULL DEFAULT b'0' COMMENT '是否加精，1-是，0-否',
  `section_id` int NULL DEFAULT 0 COMMENT '专栏ID',
  `create_time` datetime NOT NULL COMMENT '发布时间',
  `modify_time` datetime NULL DEFAULT NULL COMMENT '修改时间',
  UNIQUE INDEX `title`(`title`) USING BTREE,
  INDEX `user_id`(`user_id`) USING BTREE,
  INDEX `create_time`(`create_time`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci COMMENT = '话题表' ROW_FORMAT = DYNAMIC;

-- ----------------------------
-- Records of bms_post
-- ----------------------------
INSERT INTO `bms_post` VALUES ('1333447953558765569', '1', '12\n2\n\n', '1349290158897311745', 0, 0, 77, b'0', b'0', 0, '2020-12-01 00:29:01', '2020-12-03 23:56:51');
INSERT INTO `bms_post` VALUES ('1349362401438392322', '2021 健康，快乐', '2021的`FLAG`\n\n1. 技能进步\n2. 没有烦恼\n3. 发财 :smile:\n\n', '1349290158897311745', 0, 0, 21, b'0', b'0', 0, '2021-01-13 22:27:21', '2021-01-14 17:30:13');
INSERT INTO `bms_post` VALUES ('1334481725322297346', 'hello，spring-security', ':hibiscus: spring-security\n\n', '1349290158897311745', 0, 0, 46, b'0', b'0', 0, '2020-12-03 20:56:51', NULL);
INSERT INTO `bms_post` VALUES ('1332650453142827009', '哈哈哈，helloworld', '这是第一篇哦\n\n> hi :handshake: 你好\n\n`hello world`\n\n:+1: 很好\n', '1349290158897311745', 0, 0, 29, b'0', b'0', 1, '2020-11-28 19:40:02', '2020-11-28 19:46:39');
INSERT INTO `bms_post` VALUES ('1333432347031646209', '哈哈哈，换了个dark主题', '主题更换为Dark\n\n', '1349290158897311745', 0, 0, 6, b'0', b'0', 0, '2020-11-30 23:27:00', NULL);
INSERT INTO `bms_post` VALUES ('1333668258587750401', '嘿嘿，测试一下啊', '大家好\n`Hello everyone!`\n\n\n\n', '1349290158897311745', 0, 0, 7, b'0', b'0', 0, '2020-12-01 15:04:26', '2020-12-01 16:49:14');
INSERT INTO `bms_post` VALUES ('1332682473151635458', '我要发财', '2021 冲冲冲！！！\n\n', '1349290158897311745', 0, 0, 94, b'0', b'0', 2, '2020-11-28 21:47:16', '2020-11-30 19:40:22');
INSERT INTO `bms_post` VALUES ('1333695976536748034', '最新版本介绍，同步更新！', '
一款基于SpringBoot构建的智慧社区系统
\n\n
\n\n\n
\n\n### Hi there :wave:\n\n\n\n[![1020317774\'s github stats](https://github-readme-stats.vercel.app/api?username=1020317774&show_icons=true&count_private=true)](https://github.com/1020317774)\n\n[![Top Langs](https://github-readme-stats.vercel.app/api/top-langs/?username=1020317774&layout=compact)](https://github.com/1020317774)\n---------\n\n> 作者：王一晨\n> github：[https://github.com/1020317774](https://github.com/1020317774)\n\n## 技术栈\n\n- [x] SpringBoot 2.X\n- [x] Mysql 8.X\n- [x] Mybatis\n- [x] MybatisPlus\n- [x] Redis\n- [x] Jwt\n- [x] FastJson\n- [x] Hutool\n- [x] Lombok\n- [ ] ElasticSearch\n\n……\n\n## 安装指导\n\n- 克隆\n\n```java\ngit clone https://github.com/1020317774/rhapsody-admin.git\n```\n\n- 修改`application.properties`选择环境\n- 修改多环境配置中的redis参数和数据库\n- 启动`BootApplication`\n- 访问[`http://127.0.0.1:10000`](http://127.0.0.1:10000)\n\n', '1349290158897311745', 0, 0, 45, b'1', b'1', 0, '2020-12-01 16:54:34', '2020-12-01 17:05:00');
INSERT INTO `bms_post` VALUES ('1349631541260595202', '权限部分 OK', '1. 创建 ok\n2. 修改 ok\n3. 删除 ok\n\n', '1349290158897311745', 0, 0, 17, b'0', b'0', 0, '2021-01-14 16:16:49', '2021-01-14 16:18:53');
INSERT INTO `bms_post` VALUES ('1333676096156528641', '测试', '测试\n\n', '1349290158897311745', 0, 0, 38, b'0', b'0', 0, '2020-12-01 15:35:34', NULL);
INSERT INTO `bms_post` VALUES ('1332681213400817665', '聚合查询并统计', '* [x] SQL：\n\n```sql\nSELECT s.*,\nCOUNT(t.id) AS topics\nFROM section s\nLEFT JOIN topic t\nON s.id = t.section_id\nGROUP BY s.title\n```\n\n', '1349290158897311745', 0, 0, 55, b'0', b'0', 1, '2020-11-28 21:42:16', '2020-11-29 15:00:42');
INSERT INTO `bms_post` VALUES ('1335149981733449729', '视频嵌入', ':+1:\n\n[https://www.bilibili.com/video/BV1w64y1f7w3](https://www.bilibili.com/video/BV1w64y1f7w3)\n\n[1](https://www.bilibili.com/video/BV1tp4y1x72w)\n\n```\n.vditor-reset pre > code\n```\n\n```\npublic class HelloWorld {\n\npublic static void main(String[] args) {\n    System.out.println(\"Hello World!\");\n}\n}\n```\n\n', '1349290158897311745', 0, 0, 41, b'0', b'0', 0, '2020-12-05 17:12:16', '2021-01-14 13:06:16');


-- ----------------------------
-- Table structure for bms_comment
-- ----------------------------
DROP TABLE IF EXISTS `bms_comment`;
CREATE TABLE `bms_comment`  (
  `id` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '主键',
  `content` varchar(1000) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '' COMMENT '内容',
  `user_id` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '作者ID',
  `topic_id` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT 'topic_id',
  `create_time` datetime NOT NULL COMMENT '发布时间',
  `modify_time` datetime NULL DEFAULT NULL COMMENT '修改时间',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci COMMENT = '评论表' ROW_FORMAT = DYNAMIC;

-- ----------------------------
-- Table structure for bms_tag
-- ----------------------------
DROP TABLE IF EXISTS `bms_tag`;
CREATE TABLE `bms_tag`  (
  `id` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '标签ID',
  `name` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '' COMMENT '标签',
  `topic_count` int NOT NULL DEFAULT 0 COMMENT '关联话题',
  PRIMARY KEY (`id`) USING BTREE,
  UNIQUE INDEX `name`(`name`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci COMMENT = '标签表' ROW_FORMAT = DYNAMIC;

-- ----------------------------
-- Records of bms_tag
-- ----------------------------
INSERT INTO `bms_tag` VALUES ('1332650453377708034', 'java', 1);
INSERT INTO `bms_tag` VALUES ('1332681213568589825', 'css', 1);
INSERT INTO `bms_tag` VALUES ('1332681213631504385', 'mongodb', 1);
INSERT INTO `bms_tag` VALUES ('1332682473218744321', 'python', 1);
INSERT INTO `bms_tag` VALUES ('1332913064463794178', 'vue', 2);
INSERT INTO `bms_tag` VALUES ('1332913064530903041', 'react', 1);
INSERT INTO `bms_tag` VALUES ('1333432347107143681', 'node', 1);
INSERT INTO `bms_tag` VALUES ('1333432347107143682', 'mysql', 1);
INSERT INTO `bms_tag` VALUES ('1333447953697177602', 'flask', 2);
INSERT INTO `bms_tag` VALUES ('1333676096320106498', 'spring', 1);
INSERT INTO `bms_tag` VALUES ('1333695976742268930', 'django', 1);
INSERT INTO `bms_tag` VALUES ('1334481725519429634', 'security', 1);
INSERT INTO `bms_tag` VALUES ('1349362401597775874', 'tensorflow', 1);
INSERT INTO `bms_tag` VALUES ('1349631541306732545', 'pytorch', 1);


-- ----------------------------
-- Table structure for bms_post_tag
-- ----------------------------
DROP TABLE IF EXISTS `bms_post_tag`;
CREATE TABLE `bms_post_tag`  (
  `id` int NOT NULL AUTO_INCREMENT COMMENT '主键',
  `tag_id` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '标签ID',
  `topic_id` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '话题ID',
  PRIMARY KEY (`id`) USING BTREE,
  INDEX `tag_id`(`tag_id`) USING BTREE,
  INDEX `topic_id`(`topic_id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 52 CHARACTER SET = utf8 COLLATE = utf8_general_ci COMMENT = '话题-标签 中间表' ROW_FORMAT = DYNAMIC;

-- ----------------------------
-- Records of bms_post_tag
-- ----------------------------
INSERT INTO `bms_post_tag` VALUES (36, '1332650453377708034', '1332650453142827009');
INSERT INTO `bms_post_tag` VALUES (37, '1332681213568589825', '1332681213400817665');
INSERT INTO `bms_post_tag` VALUES (38, '1332681213631504385', '1332681213400817665');
INSERT INTO `bms_post_tag` VALUES (39, '1332682473218744321', '1332682473151635458');
INSERT INTO `bms_post_tag` VALUES (40, '1332913064463794178', '1332913064396685314');
INSERT INTO `bms_post_tag` VALUES (41, '1332913064530903041', '1332913064396685314');
INSERT INTO `bms_post_tag` VALUES (42, '1333432347107143681', '1333432347031646209');
INSERT INTO `bms_post_tag` VALUES (43, '1333432347107143682', '1333432347031646209');
INSERT INTO `bms_post_tag` VALUES (44, '1333447953697177602', '1333447953558765569');
INSERT INTO `bms_post_tag` VALUES (45, '1332913064463794178', '1333668258587750401');
INSERT INTO `bms_post_tag` VALUES (46, '1333676096320106498', '1333676096156528641');
INSERT INTO `bms_post_tag` VALUES (47, '1333695976742268930', '1333695976536748034');
INSERT INTO `bms_post_tag` VALUES (48, '1334481725519429634', '1334481725322297346');
INSERT INTO `bms_post_tag` VALUES (49, '1333447953697177602', '1335149981733449729');
INSERT INTO `bms_post_tag` VALUES (50, '1349362401597775874', '1349362401438392322');
INSERT INTO `bms_post_tag` VALUES (51, '1349631541306732545', '1349631541260595202');

-- ----------------------------
-- Table structure for bms_promotion
-- ----------------------------
DROP TABLE IF EXISTS `bms_promotion`;
CREATE TABLE `bms_promotion`  (
  `id` int NOT NULL AUTO_INCREMENT COMMENT '主键',
  `title` varchar(255) CHARACTER SET utf8mb4 NULL DEFAULT NULL COMMENT '广告标题',
  `link` varchar(255) CHARACTER SET utf8mb4 NULL DEFAULT NULL COMMENT '广告链接',
  `description` varchar(255) CHARACTER SET utf8mb4 NULL DEFAULT NULL COMMENT '说明',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 4 CHARACTER SET = utf8mb4  COMMENT = '广告推广表' ROW_FORMAT = DYNAMIC;

-- ----------------------------
-- Records of bms_promotion
-- ----------------------------
INSERT INTO `bms_promotion` VALUES (1, '开发者头条', 'https://juejin.cn/', '开发者头条');
INSERT INTO `bms_promotion` VALUES (2, '并发编程网', 'https://juejin.cn/', '并发编程网');
INSERT INTO `bms_promotion` VALUES (3, '掘金', 'https://juejin.cn/', '掘金');


-- ----------------------------
-- Table structure for bms_tip
-- ----------------------------
DROP TABLE IF EXISTS `bms_tip`;
CREATE TABLE `bms_tip`  (
  `id` int UNSIGNED NOT NULL AUTO_INCREMENT COMMENT '主键',
  `content` varchar(1000) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '' COMMENT '内容',
  `author` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT '' COMMENT '作者',
  `type` tinyint NOT NULL COMMENT '1：使用，0：过期',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 24864 CHARACTER SET = utf8 COLLATE = utf8_general_ci COMMENT = '每日赠言' ROW_FORMAT = DYNAMIC;

-- ----------------------------
-- Records of bms_tip
-- ----------------------------
INSERT INTO `bms_tip` VALUES (1, '多锉出快锯，多做长知识。', '佚名', 1);
INSERT INTO `bms_tip` VALUES (2, '未来总留着什么给对它抱有信心的人。', '佚名', 1);
INSERT INTO `bms_tip` VALUES (3, '一个人的智慧不够用，两个人的智慧用不完。', '谚语', 1);
INSERT INTO `bms_tip` VALUES (4, '十个指头按不住十个跳蚤', '傣族', 1);
INSERT INTO `bms_tip` VALUES (5, '言不信者，行不果。', '墨子', 1);
INSERT INTO `bms_tip` VALUES (6, '攀援而登，箕踞而遨，则几数州之土壤，皆在衽席之下。', '柳宗元', 1);
INSERT INTO `bms_tip` VALUES (7, '美德大都包含在良好的习惯之内。', '帕利克', 1);
INSERT INTO `bms_tip` VALUES (8, '人有不及，可以情恕。', '《晋书》', 1);
INSERT INTO `bms_tip` VALUES (9, '明·吴惟顺', '法不传六耳', 1);
INSERT INTO `bms_tip` VALUES (10, '真正的朋友应该说真话，不管那话多么尖锐。', '奥斯特洛夫斯基', 1);
INSERT INTO `bms_tip` VALUES (11, '时间是一切财富中最宝贵的财富。', '德奥弗拉斯多', 1);
INSERT INTO `bms_tip` VALUES (12, '看人下菜碟', '民谚', 1);
INSERT INTO `bms_tip` VALUES (13, '如果不是怕别人反感，女人决不会保持完整的严肃。', '拉罗什福科', 1);
INSERT INTO `bms_tip` VALUES (14, '爱是春暖花开时对你满满的笑意', '佚名', 1);
INSERT INTO `bms_tip` VALUES (15, '希望是坚韧的拐杖，忍耐是旅行袋，携带它们，人可以登上永恒之旅。', '罗素', 1);
INSERT INTO `bms_tip` VALUES (18, '天国般的幸福，存在于对真爱的希望。', '佚名', 1);
INSERT INTO `bms_tip` VALUES (19, '我们现在必须完全保持党的纪律，否则一切都会陷入污泥中。', '马克思', 1);
INSERT INTO `bms_tip` VALUES (20, '在科学上没有平坦的大道，只有不畏劳苦沿着陡峭山路攀登的人，才有希望达到光辉的顶点。', '马克思', 1);
INSERT INTO `bms_tip` VALUES (21, '懒惰的马嫌路远', '蒙古', 1);
INSERT INTO `bms_tip` VALUES (22, '别忘记热水是由冷水烧成的', '非洲', 1);


-- ----------------------------
-- Table structure for ums_user
-- ----------------------------
DROP TABLE IF EXISTS `ums_user`;
CREATE TABLE `ums_user`  (
  `id` varchar(20) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT '用户ID',
  `username` varchar(15) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT '' COMMENT '用户名',
  `alias` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '用户昵称',
  `password` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT '' COMMENT '密码',
  `avatar` varchar(1000) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '头像',
  `email` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '邮箱',
  `mobile` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '手机',
  `score` int NOT NULL DEFAULT 0 COMMENT '积分',
  `token` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT '' COMMENT 'token',
  `bio` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '个人简介',
  `active` bit(1) NOT NULL DEFAULT b'0' COMMENT '是否激活，1：是，0：否',
  `status` bit(1) NULL DEFAULT b'1' COMMENT '状态，1：使用，0：停用',
  `role_id` int NULL DEFAULT NULL COMMENT '用户角色',
  `create_time` datetime NOT NULL COMMENT '加入时间',
  `modify_time` datetime NULL DEFAULT NULL COMMENT '修改时间',
  PRIMARY KEY (`id`) USING BTREE,
  UNIQUE INDEX `user_name`(`username`) USING BTREE,
  INDEX `user_email`(`email`) USING BTREE,
  INDEX `user_create_time`(`create_time`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci COMMENT = '用户表' ROW_FORMAT = DYNAMIC;

-- ----------------------------
-- Records of ums_user
-- ----------------------------
INSERT INTO `ums_user` VALUES ('1349290158897311745', 'admin', 'admin', '$2a$10$8qx711TBg/2hxfL7N.sxf.0ROMhR/iuPhQx33IFqGd7PLgt5nGJTO', 'https://s3.ax1x.com/2020/12/01/DfHNo4.jpg', '[email protected]', NULL, 2, '', '自由职业者', b'1', b'1', NULL, '2021-01-13 17:40:17', NULL);
INSERT INTO `ums_user` VALUES ('1349618748226658305', 'zhangsan', 'zhangsan', '$2a$10$7K3yYv8sMV5Xsc2facXTcuyDo8JQ4FJHvjZ7qtWYcJdei3Q6Fvqdm', 'https://s3.ax1x.com/2020/12/01/DfHNo4.jpg', '[email protected]', NULL, 0, '', '自由职业者', b'1', b'1', NULL, '2021-01-14 15:25:59', NULL);

SET FOREIGN_KEY_CHECKS = 1;

创建maven工程

1.pom依赖

    org.springframework.boot
    spring-boot-starter-parent
    2.3.8.RELEASE
     

    8
    8
    UTF-8
    UTF-8
    3.4.2
    1.2.75
    5.5.7
    0.9.1
    5.1.1



    
        org.springframework.boot
        spring-boot-starter
    
    
    
        org.springframework.boot
        spring-boot-starter-web
    
    
    
        org.projectlombok
        lombok
        true
    
    
    
        io.jsonwebtoken
        jjwt
        ${jwt.version}
    
    
    
        com.vdurmont
        emoji-java
        ${emoji-java.version}
    
    
    
        org.apache.commons
        commons-pool2
    
    
    
        cn.hutool
        hutool-all
        ${hutool.version}
    
    
    
        mysql
        mysql-connector-java
        runtime
    
    
    
        com.baomidou
        mybatis-plus-boot-starter
        ${mybatis-plus.version}
    
    
    
        com.alibaba
        fastjson
        ${fastjson.version}
    
    
    
        org.springframework.boot
        spring-boot-configuration-processor
        true
    
    
    
        org.hibernate.validator
        hibernate-validator
    
    
        org.springframework.boot
        spring-boot-starter-test
        test
        
            
                org.junit.vintage
                junit-vintage-engine
            
        
    

2.yam配置

# 端口号
server:
  port: 8081
  
# 数据库
spring:
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    username: root
    password: root
    url: jdbc:mysql://127.0.0.1:3306/nodepad_mblog?useUnicode=true&characterEncoding=utf8&autoReconnect=true&serverTimezone=GMT%2B8
    type: com.zaxxer.hikari.HikariDataSource

# sql日志打印
mybatis-plus:
  configuration:
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl

3.启动类

// 我们这里还没有配置数据库，exclude = {DataSourceAutoConfiguration.class就是启动时不加载数据库
// @SpringBootApplication(exclude = {DataSourceAutoConfiguration.class})
@Slf4j
@SpringBootApplication
public class BlogApplication {
    
    public static void main(String[] args) {
        ConfigurableApplicationContext context = SpringApplication.run(BlogApplication.class, args);
        String port = context.getEnvironment().getProperty("server.port");
        log.info("http://localhost:"+port);
    }
}

启动项目测试有没有报错

4.项目返回和错误处理

image-20210211175503499

4.1api数据返回

IErrorCode

public interface IErrorCode {
    /**
     * 错误编码: -1失败;200成功
     *
     * @return 错误编码
     */
    Integer getCode();

    /**
     * 错误描述
     *
     * @return 错误描述
     */
    String getMessage();
}

ApiErrorCode

public enum ApiErrorCode implements IErrorCode {

    /**
     * 成功
     */
    SUCCESS(200, "操作成功"),
    /**
     * 失败
     */
    FAILED(-1, "操作失败"),
    /**
     * 未登录，Token过期
     */
    UNAUTHORIZED(401, "暂未登录或token已经过期"),
    /**
     * 权限不足
     */
    FORBIDDEN(403, "权限不足"),
    /**
     * 参数校验错误
     */
    VALIDATE_FAILED(404, "参数检验失败");

    private final Integer code;
    private final String message;

    ApiErrorCode(int code, String message) {
        this.code = code;
        this.message = message;
    }

    @Override
    public Integer getCode() {
        return code;
    }

    @Override
    public String getMessage() {
        return message;
    }

    @Override
    public String toString() {
        return "ApiErrorCode{" +
                "code=" + code +
                ", message='" +message + '\'' +
                '}';
    }
}

ApiResult

import lombok.Data;
import lombok.NoArgsConstructor;

import java.io.Serializable;
import java.util.Optional;


@Data
@NoArgsConstructor
public class ApiResult implements Serializable {

    private static final long serialVersionUID = -4153430394359594346L;
    /**
     * 业务状态码
     */
    private long code;
    /**
     * 结果集
     */
    private T data;
    /**
     * 接口描述
     */
    private String message;

    /**
     * 全参
     *
     * @param code    业务状态码
     * @param message 描述
     * @param data    结果集
     */
    public ApiResult(long code, String message, T data) {
        this.code = code;
        this.message = message;
        this.data = data;
    }

    public ApiResult(IErrorCode errorCode) {
        errorCode = Optional.ofNullable(errorCode).orElse(ApiErrorCode.FAILED);
        this.code = errorCode.getCode();
        this.message = errorCode.getMessage();
    }

    /**
     * 成功
     *
     * @param data 结果集
     * @return {code:200,message:操作成功,data:自定义}
     */
    public static  ApiResult success() {
        return new ApiResult(ApiErrorCode.SUCCESS.getCode(), ApiErrorCode.SUCCESS.getMessage(), null);
    }

    /**
     * 成功
     *
     * @param data 结果集
     * @return {code:200,message:操作成功,data:自定义}
     */
    public static  ApiResult success(T data) {
        return new ApiResult(ApiErrorCode.SUCCESS.getCode(), ApiErrorCode.SUCCESS.getMessage(), data);
    }

    /**
     * 成功
     *
     * @param data    结果集
     * @param message 自定义提示信息
     * @return {code:200,message:自定义,data:自定义}
     */
    public static  ApiResult success(T data, String message) {
        return new ApiResult(ApiErrorCode.SUCCESS.getCode(), message, data);
    }

    /**
     * 失败返回结果
     */
    public static  ApiResult failed() {
        return failed(ApiErrorCode.FAILED);
    }

    /**
     * 失败返回结果
     *
     * @param message 提示信息
     * @return {code:枚举ApiErrorCode取,message:自定义,data:null}
     */
    public static  ApiResult failed(String message) {
        return new ApiResult(ApiErrorCode.FAILED.getCode(), message, null);
    }

    /**
     * 失败
     *
     * @param errorCode 错误码
     * @return {code:封装接口取,message:封装接口取,data:null}
     */
    public static  ApiResult failed(IErrorCode errorCode) {
        return new ApiResult(errorCode.getCode(), errorCode.getMessage(), null);
    }

    /**
     * 失败返回结果
     *
     * @param errorCode 错误码
     * @param message   错误信息
     * @return {code:枚举ApiErrorCode取,message:自定义,data:null}
     */
    public static  ApiResult failed(IErrorCode errorCode, String message) {
        return new ApiResult(errorCode.getCode(), message, null);
    }

    /**
     * 参数验证失败返回结果
     */
    public static  ApiResult validateFailed() {
        return failed(ApiErrorCode.VALIDATE_FAILED);
    }

    /**
     * 参数验证失败返回结果
     *
     * @param message 提示信息
     */
    public static  ApiResult validateFailed(String message) {
        return new ApiResult(ApiErrorCode.VALIDATE_FAILED.getCode(), message, null);
    }

    /**
     * 未登录返回结果
     */
    public static  ApiResult unauthorized(T data) {
        return new ApiResult(ApiErrorCode.UNAUTHORIZED.getCode(), ApiErrorCode.UNAUTHORIZED.getMessage(), data);
    }

    /**
     * 未授权返回结果
     */
    public static  ApiResult forbidden(T data) {
        return new ApiResult(ApiErrorCode.FORBIDDEN.getCode(), ApiErrorCode.FORBIDDEN.getMessage(), data);
    }
}

4.2全局异常

ApiException

public class ApiException extends RuntimeException {
    private IErrorCode errorCode;

    public ApiException(IErrorCode errorCode) {
        super(errorCode.getMessage());
        this.errorCode = errorCode;
    }

    public ApiException(String message) {
        super(message);
    }

    public IErrorCode getErrorCode() {
        return errorCode;
    }
}

ApiAsserts

public class ApiAsserts {
    /**
     * 抛失败异常
     *
     * @param message 说明
     */
    public static void fail(String message) {
        throw new ApiException(message);
    }

    /**
     * 抛失败异常
     *
     * @param errorCode 状态码
     */
    public static void fail(IErrorCode errorCode) {
        throw new ApiException(errorCode);
    }
}

GlobalExceptionHandler

import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;

import java.util.Map;

@ControllerAdvice
public class GlobalExceptionHandler {
    /**
     * 捕获自定义异常
     */
    @ResponseBody
    @ExceptionHandler(value = ApiException.class)
    public ApiResult> handle(ApiException e) {
        if (e.getErrorCode() != null) {
            return ApiResult.failed(e.getErrorCode());
        }
        return ApiResult.failed(e.getMessage());
    }
}