springboot集成mybatis、swagger

之前学了一点，现在要做，差不多完全忘记了，做完在这里做下总结。

springboot要集成mybatis和swagger的话，先不要着急，胡乱复制粘贴代码。要集成这两个，建议先集成swagger。

大致的项目结构：
在这里插入图片描述
tips：controller、config、service等这些类都要在启动类的同级或下级文件夹中。

一、新建一个springboot项目（过程省略）

二、集成swagger

导入依赖（可能有多余的）

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-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>2.1.4</version>
        </dependency>

        <!--swagger-->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>io.swagger</groupId>
                    <artifactId>swagger-annotations</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>io.swagger</groupId>
                    <artifactId>swagger-models</artifactId>
                </exclusion>
            </exclusions>
            <version>2.9.2</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.9.2</version>
            <!--<scope>provided</scope>-->
        </dependency>
        <dependency>
            <groupId>io.swagger</groupId>
            <artifactId>swagger-annotations</artifactId>
            <version>1.5.21</version>
        </dependency>
        <dependency>
            <groupId>io.swagger</groupId>
            <artifactId>swagger-models</artifactId>
            <version>1.5.21</version>
        </dependency>

        <!-- 6.分布式数据库 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>
        <!--数据库连接驱动-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.21</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

添加swagger的配置文件SwaggerConfig.java

@Configuration
@EnableSwagger2
public class SwaggerConfig {
    @Bean
    public Docket customDocket(){
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .select()
                .apis(RequestHandlerSelectors.basePackage("controller的路径"))  //扫描controller层的包
                .build();
    }

    private ApiInfo apiInfo(){
        return new ApiInfoBuilder()
                .title("springboot集成mybatis&swagger的demo")   //文档说明
                .version("1.0")
                .build();
    }
}

编写controller（这里写的是对一个简单的person表进行增删改查，写了这个可以把实体类，后面的service层、dao层补充好）

@RestController
@Api("对person的增删改查")
public class PersonController {

    @Autowired
    PersonService personService;

    //    查询（暂未考虑用户重名情况）
    @GetMapping("/findOne")
    @ApiOperation(value = "通过人名查找信息")
    @ApiImplicitParam(name = "name",value = "用户姓名",required = true,dataType = "String")
    public List<Person> findOne(String name){
        return personService.findOne(name);
    }

    //保存功能
    @ApiOperation(value = "保存用户信息")
    @PostMapping("save")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "name",value = "用户姓名",required = true,dataType = "String"),
            @ApiImplicitParam(name = "age",value = "用户年龄",required = false),
            @ApiImplicitParam(name = "gender",value = "用户性别",required = false)
    })
    public int save(String name, Integer age, Integer gender){
        Person p=new Person(name,age,gender);
        return personService.save(p);
    }


    //    删
    @ApiOperation(value = "删除某人的信息")
    @DeleteMapping("delete")
    @ApiImplicitParam(name = "name",value = "用户姓名",required = true,dataType = "String")
    public int delete(String name){
        return personService.delete(name);
    }

    //    改
    @ApiOperation(value = "修改信息")
    @PutMapping("update")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "name",value = "用户姓名",required = true),
            @ApiImplicitParam(name = "age",value = "用户年龄",required = false),
            @ApiImplicitParam(name = "gender",value = "用户性别",required = false)
    })
    public int update(String name, Integer age, Integer gender) {
        Person p = new Person(name, age, gender);
        return personService.update(p);
    }
}

写完这些启动项目可以发现会报错，这是因为到了mapper，没法到数据库，因此把数据库方面补起来。（开始整合mybatis）

以上参考：

版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。
本文链接：https://blog.csdn.net/u012431703/article/details/93856842

三、集成mybatis

添加驱动，在application.yml中添加配置

#swagger
swagger:
  enabled: true

server:
  port: 8080

spring:
#jdbc
  datasource:
    username: root
    password: root
    url: jdbc:mysql://localhost:3306/work?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8
    driver-class-name: com.mysql.cj.jdbc.Driver

添加mybatis配置文件mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <!-- 延迟加载和驼峰式编写规范支持 -->
    <settings>
        <setting name="lazyLoadingEnabled" value="true"/>
        <setting name="mapUnderscoreToCamelCase" value="true"/>
    </settings>
</configuration>

补充完善application.yml中的配置

#mybatis整合配置
mybatis:
  config-location: classpath:mybatis/mybatis-config.xml
  mapper-locations: classpath:mybatis/mappers/*.xml

在启动类上添加扫描mapper接口的注解

@MapperScan("mapper接口的路径")

tips：mapper接口要添加@mapper注解，另@mapper和@Repository的区别在下面这篇文章：

版权声明：本文为CSDN博主「昆仑山下一头驴」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/weixin_44607885/article/details/102554773

原文链接：https://blog.csdn.net/qq_44213900/article/details/117255750