一、创建项目
1、用IDEA新建一个SpringBoot项目
注意JDK与Java版本的匹配，如果想选择jdk低版本，先要更改服务器URL：start.aliyun.com
2、添加依赖
（1）、Lombok
（2）、Spring Web
（3）、Mybatis Framework
（4）、MySqlDriver
项目中的配置 pom.xml 如下
<?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> <groupId>com.springboot</groupId> <artifactId>Chapter13</artifactId> <version>0.0.1-SNAPSHOT</version> <name>Chapter13</name> <description>Chapter13</description> <properties> <java.version>11</java.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <spring-boot.version>2.6.13</spring-boot.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jdbc</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>2.2.2</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <scope>runtime</scope> <optional>true</optional> </dependency> <dependency> <groupId>com.mysql</groupId> <artifactId>mysql-connector-j</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <!--Swagger2--> <dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger2</artifactId> <exclusions> <!--swagger2.92默认依赖1.5.0版本的models和annotations 排除掉此版本，引入一个其他版本，不让项目启动时未报Illegal DefaultValue null for parameter type integer的警告--> <exclusion> <groupId>io.swagger</groupId> <artifactId>swagger-models</artifactId> </exclusion> <exclusion> <groupId>io.swagger</groupId> <artifactId>swagger-annotations</artifactId> </exclusion> </exclusions> <version>2.9.2</version> </dependency> <dependency> <groupId>io.swagger</groupId> <artifactId>swagger-models</artifactId> <version>1.5.22</version> </dependency> <dependency> <groupId>io.swagger</groupId> <artifactId>swagger-annotations</artifactId> <version>1.5.22</version> </dependency> <!--Swagger-UI--> <!--访问路径：http://localhost:8080/swagger-ui.html--> <dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger-ui</artifactId> <version>2.9.2</version> </dependency> <!--swaggerui 几个自定义界面方便查看接口--> <!--访问路径：http://localhost:8080/doc.html--> <dependency> <groupId>com.github.xiaoymin</groupId> <artifactId>swagger-bootstrap-ui</artifactId> <version>1.9.5</version> </dependency> </dependencies> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.boot