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这里是码农充电第一站，回复“666”，获取一份专属大礼包
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1、安装(EasyCode)

2、建立数据库

DROP TABLE IF EXISTS \`user\`;
CREATE TABLE \`user\` (  
  \`id\` int(11) NOT NULL,  
  \`username\` varchar(20) DEFAULT NULL,  
  \`sex\` varchar(6) DEFAULT NULL,  
  \`birthday\` date DEFAULT NULL,  
  \`address\` varchar(20) DEFAULT NULL,  
  \`password\` varchar(20) DEFAULT NULL,  
PRIMARY KEY (\`id\`)) ENGINE=InnoDB DEFAULT CHARSET=utf8;SET FOREIGN\_KEY\_CHECKS = 1;  

3、在IDEA配置连接数据库

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

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

<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <optional>true</optional>
</dependency>

<!--热部署-->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-devtools</artifactId>
    <optional>true</optional> <!-- 这个需要为 true 热部署才有效 -->
</dependency>

<!--mybatis-->
<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>1.3.2</version>
</dependency>

<!-- mysql -->
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>5.1.47</version>
</dependency>

<!--阿里巴巴连接池-->
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid</artifactId>
    <version>1.0.9</version>
</dependency>

6、Application.yml

server:
  port: 8089spring:
  datasource:
    url: jdbc:mysql://127.0.0.1:3306/database?useUnicode=true&characterEncoding=UTF-8
    username: root
    password: 123456
    type: com.alibaba.druid.pool.DruidDataSource
    driver-class-name: com.mysql.jdbc.Driver

mybatis:
  mapper-locations: classpath:/mapper/*Dao.xml
  typeAliasesPackage: com.vue.demo.entity

7、启动项目