SpringBoot集成MyBatis

在

pom.xml

中添加依赖：

<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>cn.et</groupId>
<artifactId>SpringBoot_MyBatis</artifactId>
<version>0.0.1-SNAPSHOT</version>
<!-- 继承自springboot的依赖 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.9.RELEASE</version>
</parent>
<dependencies>
<!--
springboot每一个框架的集成都是starter
spring-boot-starter-web 加载javaee 内嵌tomcat
-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- 加载mybatis依赖 -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.1</version>
</dependency>
<!-- 如果需要jsp 添加该依赖  -->
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
</dependency>
<!--
数据库启动自动化
连接数据的starter
-->
<dependency>
<groupId> org.springframework.boot </groupId>
<artifactId> spring-boot-starter-data-jpa </artifactId>
</dependency>

<!-- mysql驱动包 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>

<!-- 加载druid的依赖 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.5</version>
</dependency>
</dependencies>
</project>

在

application.yml

中增加配置：

#配置数据库四要素
spring.datasource.url=jdbc:mysql://localhost/desk
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
#指定数据源
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.filters=stat,config
spring.jpa.show-sql=true
#端口
server.port=80
#项目上下文
server.context-path=/sbm
spring.devtools.restart.enabled=true

启动类

package cn.et;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class SpringBootTest {

public static void main(String[] args) {
SpringApplication.run(SpringBootTest.class, args);
}
}

controller

控制层

package cn.et.controller;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import cn.et.Dept;
import cn.et.dao.SpringBootMapper;

@RestController
public class SpringBootController {
@Autowired
SpringBootMapper mapper;

@RequestMapping("/queryDept")
public List<Dept> query() {
return mapper.queryDept();
}
}

Dao

层,一个

@Mapper

注解就搞定了

package cn.et.dao;

import java.util.List;

import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

import cn.et.Dept;

@Mapper
public interface SpringBootMapper {

@Select("select * from dept")
public List<Dept> queryDept();

}