springboot整合mybatis

引入依赖

<dependency>
  <groupId>org.mybatis.spring.boot</groupId>
  <artifactId>mybatis-spring-boot-starter</artifactId>
  <version>1.3.3</version>
</dependency>
<dependency>
  <groupId>commons-dbcp</groupId>
  <artifactId>commons-dbcp</artifactId>
  <version>1.4</version>
</dependency>
<dependency>
   <groupId>com.oracle</groupId>
   <artifactId>ojdbc6</artifactId>
   <version>6.0</version>
</dependency

编写dao和service

public interface UserDao {
  List<User> selectUser();
}
public interface UserService {
  List<User> findUser();
}
@Service
@Transactional
public class UserServiceImpl implements UserService {
  @Autowired
  private UserDao userDao;
  @Override
  public List<User> findUser() {
    return userDao.selectUser();
 }
}

编写配置文件

spring:
mvc:
 view:
  prefix: /
  suffix: .html
 static-path-pattern: /public/**
# 数据源配置
datasource:
 type: org.apache.commons.dbcp.BasicDataSource
 username: root
 url: jdbc:mysql://localhost:3306/table_name
 password: root
 driver-class-name: com.mysql.jdbc.Driver
 
# mybatis配置
mybatis:
mapper-locations: classpath:com/hp/mapper/*Mapper.xml  #指定mapper配置文件位置
type-aliases-package: com.hp.entity        #指定起别名来的类

编写启动类,指定dao接口的位置

@SpringBootApplication
@MapperScan("com.hp.dao")
public class App {
  public static void main(String[] args) {
    SpringApplication.run(App.class, args);
 }
}