前言
经过一段时间的积累，我们需要通过一个项目验证一下我们的技术，那么通过一个前后端实现项目是最好不不过了。在网上看过一个视频教程，就一步步做下去，期间走过了很多弯路（不是别人的有错误，而是开发版本的问题），所以实践才是真理。
创建数据库
数据库类型：Mysql
数据库名称：sridb
表名：dept
表结构：
| 字段 | 类型 | 长度 | 注释 |
|---|---|---|---|
| id | bigint | 20 | 主键 |
| parent_id | bigint | 20 | 上级部门ID。一级部门为0 |
| name | varchar | 50 | 部门名称 |
| type | tinyint | 2 | 类型。0：公司；1：部门；2：科室/小组 |
| sort | int | 11 | 排序值。越小越靠前 |
| status | tinyint | 2 | 状态。0：正常；1：禁用 |
| update_time | datetime | 0 | 修改时间 |
| create_by | bigint | 20 | 创建人 |
| create_time | datetime | 0 | 创建时间 |
配置Spring Boot
SDK:JAVA 11
项目结构：
依赖
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.flo</groupId>
<artifactId>flo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>flo</name>
<description>Flo project for Spring Boot</description>
<properties>
<java.version>11</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.1.2</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<!-- https://mvnrepository.com/artifact/com.alibaba/druid -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.22</version>
</dependency>
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper-spring-boot-starter</artifactId>
<version>1.2.10</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.68</version>
</dependency>
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper-spring-boot-starter</artifactId>
<version>1.2.10</version>
</dependency>
<!-- mybatis-plus相关依赖 -->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.3.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<!--加入验证码随机数-->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.10</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
<!--生产xml-->
<!-- 如果不添加此节点mybatis的mapper.xml文件都会被漏掉。 -->
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.yml</include>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.yml</include>
<include>**/*.properties</include>
<include>**/*.xml</include>
<include>**/*.html</include>
<include>**/*.css</include>
<include>**/*.js</include>
<include>**/*.*</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
</build>
</project>
运行环境配置
application.properties
#端口
server.port=8888
server.servlet.context-path=/
#旧Mysql 驱动使用 com.mysql.jdbc.Driver 新Mysql:com.mysql.cj.jdbc.Driver
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/sridb?useUnicode=true&&characterEncoding=utf-8
spring.datasource.username=root
spring.datasource.password=123456
#数据源引擎
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
#反射文件
mybatis.mapper-locations=classpath:com/flo/dao/*.xml
mybatis.type-aliases-package=com.flo.po
spring.resources.static-locations=classpath:/static/,classpath:/templates/
#热启动
spring.devtools.restart.enabled=true
#日期格式
spring.jackson.date-format=yyyy-MM-dd HH:mm:ss
spring.jackson.time-zone=GMT+8
主程序Floapplication
package com.flo;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
@MapperScan("com.flo.dao")
public class FloApplication {
public static void main(String[] args) {
SpringApplication.run(FloApplication.class, args);
}
}
配置LayUI
下载LayuiMini
配置到Spring boot
简单验证运行环境
启动Spring boot
