1. project environment construction

Development environment construction

1、 Database environment construction

1、 Create database

Or use the command line to create ：

create database reggie character set utf8mb4

2、 Import SQL file db_reggie.sql, You can get it on Heima wechat

Command line import ：source D:\db_reggie.sql

3、 Database table description

Serial number	Table name	explain
1	employee	The employee table
2	category	Classification of dishes and packages
3	dish	Menu
4	setmeal	Package list
5	setmeal_dish	Relationship table of package dishes
6	dish_flavor	Table of dish taste relationship
7	user	User table （C End ）
8	address_book	Address book table
9	shopping_cart	Shopping cart table
10	orders	The order sheet
11	order_detail	Order details

2、maven Project structures,

1、 establish maven engineering , Of course, it can also be created directly SpringBoot engineering

2、 Import maven To configure

1. add to spring-boot-starter-parent
2. Appoint java edition
3. Import dependence
4. add to spring-boot-maven-plugin plug-in unit

complete pom.xml file ：

<?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 http://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>2.4.5</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <groupId>com.itheima</groupId>
    <artifactId>reggie_take_out</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <java.version>1.8</java.version>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

    <dependencies>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <scope>compile</scope>
        </dependency>

        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.4.2</version>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.20</version>
        </dependency>

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.76</version>
        </dependency>

        <dependency>
            <groupId>commons-lang</groupId>
            <artifactId>commons-lang</artifactId>
            <version>2.6</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.23</version>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.4.5</version>
            </plugin>
        </plugins>
    </build>

</project>

3、 To configure application.yml

1. stay resources Create under directory application.yml
2. configure port
3. Configuration item name
4. Configure database connections

complete application.yml：

server:
  port: 8080
spring:
  application:
    name: reggie_take_out
  datasource:
    druid:
      driver-class-name: com.mysql.cj.jdbc.Driver
      url: jdbc:mysql://localhost:3306/reggie?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true
      username: root
      password: 123456
mybatis-plus:
  configuration:
    # When mapping entities or attributes , Remove the underscores from the table names and field names in the database , Map according to the hump nomenclature 
    map-underscore-to-camel-case: true
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
  global-config:
    db-config:
      id-type: ASSIGN_ID

4、 start-up SpringBoot

Create startup class ReggieApplication, Click on the run

package com.itheima.reggie;

import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/** * @Author: xjhqre * @DateTime: 2022/6/15 16:20 */
@Slf4j
@SpringBootApplication
public class ReggieApplication {
    
    public static void main(String[] args) {
    
        SpringApplication.run(ReggieApplication.class, args);
        log.info(" The project started successfully ...");
    }
}

3、 Import the front page

1、 Put the backend and front Copy directory to resources Under the table of contents

2、 Create configuration class WebMvcConfig Configure front-end resource request mapping

package com.itheima.reggie.config;

import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

/** * @Author: xjhqre * @DateTime: 2022/6/15 16:24 */
@Slf4j
@Configuration
public class WebMvcConfig extends WebMvcConfigurationSupport {
    

    /** *  Set static resource mapping  * @param registry */
    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
    
        super.addResourceHandlers(registry);
        log.info(" Start static resource mapping ...");
        registry.addResourceHandler("/backend/**").addResourceLocations("classPath:/backend/");
        registry.addResourceHandler("/front/**").addResourceLocations("classPath:/front/");
    }
}

3、 Restart the service , visit http://localhost:8080/backend/index.html See the effect