SpringBoot_数据访问-整合MyBatis-注解版MyBatis

第一步：配置druid数据源

第二步 创建mapper类

/**
 * Created by chengbx on 2018/6/29.
 */
@Mapper
public interface DepartmentMapper {

    @Select("select * from department where id =#{id}")
    public Department getDeptById(Integer id);

    @Delete("delete from department where id =#{id}")
    public int deleteById(Integer id);

    @Options(useGeneratedKeys = true,keyProperty = "id")
    @Insert("insert into department(department_name) values(#{departmentName}) ")
    public int insertDept(Department department);

    @Update("update department set department_name =#{departmentName} where id=#{id}")
    public int updateDept(Department department);
}

第三步 编写myBatis配置类 支持驼峰式命名

@Configuration
public class MyBatisConfig {

    @Bean
    public ConfigurationCustomizer configurationCustomizer(){
       return  new ConfigurationCustomizer(){
            /**
             * Customize the given a {@link Configuration} object.
             *
             * @param configuration the configuration object to customize
             */
            @Override
            public void customize(org.apache.ibatis.session.Configuration configuration) {
                configuration.setMapUnderscoreToCamelCase(true);
            }
        };
    }
}

第四步 创建实体类bean

public class Department {

    private  Integer id;
    private  String departmentName;

    public Department() {
    }

    public Department(Integer id, String departmentName) {
        this.id = id;
        this.departmentName = departmentName;
    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getDepartmentName() {
        return departmentName;
    }

    public void setDepartmentName(String departmentName) {
        this.departmentName = departmentName;
    }
}

public class Employee {

    private Integer id;
    private String lastName;
    private Integer gender;
    private String email;
    private Integer did;

    public Employee() {
    }

    public Employee(Integer id, String lastName, Integer gender, String email, Integer did) {
        this.id = id;
        this.lastName = lastName;
        this.gender = gender;
        this.email = email;
        this.did = did;
    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getLastName() {
        return lastName;
    }

    public void setLastName(String lastName) {
        this.lastName = lastName;
    }

    public Integer getGender() {
        return gender;
    }

    public void setGender(Integer gender) {
        this.gender = gender;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public Integer getDid() {
        return did;
    }

    public void setDid(Integer did) {
        this.did = did;
    }
}

创建Controller类调用

@RestController
public class DepartmentController {

    @Autowired
    private DepartmentMapper departmentMapper;

    @GetMapping(value = "/dept/{id}")
    public Department getDepartment(@PathVariable("id") Integer id){

        return departmentMapper.getDeptById(id);
    }

    @GetMapping(value = "/dept")
    public Department insertDept(Department department){

         departmentMapper.insertDept(department);
        return department;
    }

}

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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>

   <groupId>com.baoxing</groupId>
   <artifactId>springboot-mybatis-01</artifactId>
   <version>0.0.1-SNAPSHOT</version>
   <packaging>jar</packaging>

   <name>springboot-mybatis-01</name>
   <description>Demo project for Spring Boot</description>

   <parent>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-parent</artifactId>
      <version>1.5.15.BUILD-SNAPSHOT</version>
      <relativePath/> <!-- lookup parent from repository -->
   </parent>

   <properties>
      <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
      <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
      <java.version>1.8</java.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>1.3.2</version>
      </dependency>
      <!-- https://mvnrepository.com/artifact/com.alibaba/druid -->
      <dependency>
         <groupId>com.alibaba</groupId>
         <artifactId>druid</artifactId>
         <version>1.1.8</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-test</artifactId>
         <scope>test</scope>
      </dependency>
   </dependencies>

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

   <repositories>
      <repository>
         <id>spring-snapshots</id>
         <name>Spring Snapshots</name>
         <url>https://repo.spring.io/snapshot</url>
         <snapshots>
            <enabled>true</enabled>
         </snapshots>
      </repository>
      <repository>
         <id>spring-milestones</id>
         <name>Spring Milestones</name>
         <url>https://repo.spring.io/milestone</url>
         <snapshots>
            <enabled>false</enabled>
         </snapshots>
      </repository>
   </repositories>

   <pluginRepositories>
      <pluginRepository>
         <id>spring-snapshots</id>
         <name>Spring Snapshots</name>
         <url>https://repo.spring.io/snapshot</url>
         <snapshots>
            <enabled>true</enabled>
         </snapshots>
      </pluginRepository>
      <pluginRepository>
         <id>spring-milestones</id>
         <name>Spring Milestones</name>
         <url>https://repo.spring.io/milestone</url>
         <snapshots>
            <enabled>false</enabled>
         </snapshots>
      </pluginRepository>
   </pluginRepositories>


</project>