SpringBoot+Mybatis框架Demo

1、使用Intellij IDEA 2016.3 新建一个SpringBoot项目

这样就创建了一个简单的SpringBoot项目了。

2、添加jar包

<properties>
   <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
   <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
   <java.version>1.8</java.version>
   <mybatis-spring-boot.version>1.2.0</mybatis-spring-boot.version>
   <mysql-connector.version>5.1.39</mysql-connector.version>
</properties>

<dependencies>
   <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
   </dependency>
   <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-test</artifactId>
   </dependency>
   <!-- 监控 -->
   <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-actuator</artifactId>
   </dependency>
   <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
   </dependency>
   <!-- Provided -->
   <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-tomcat</artifactId>
   </dependency>
   <dependency>
      <groupId>org.apache.tomcat.embed</groupId>
      <artifactId>tomcat-embed-jasper</artifactId>
   </dependency>
   <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-tomcat</artifactId>
      <scope>provided</scope>
   </dependency>
   <!-- Spring Boot Mybatis 依赖 -->
   <dependency>
      <groupId>org.mybatis.spring.boot</groupId>
      <artifactId>mybatis-spring-boot-starter</artifactId>
      <version>${mybatis-spring-boot.version}</version>
   </dependency>
   <!-- MySQL 连接驱动依赖 -->
   <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>${mysql-connector.version}</version>
   </dependency>
   <!--引入redis-->
   <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-redis</artifactId>
      <version>1.4.7.RELEASE</version>
   </dependency>
   <!--引入定时任务-->
   <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter</artifactId>
   </dependency>
   <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-test</artifactId>
      <scope>test</scope>
   </dependency>
   <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-devtools</artifactId>
      <optional>true</optional>
   </dependency>
</dependencies>

3、配置application.yml文件

新建项目时文件名是application.properties需要重命名下

spring:
  datasource:
    url: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8
    username: root
    password: root
    driver-class-name: com.mysql.jdbc.Driver
  redis:
    database: 0 #Redis数据库索引
    host: 127.0.0.1 #Redis服务器地址
    port: 6379 #Redis端口号
    password: #Redis密码
    pool:
      max-active: 8 #Redis连接池最大连接数
      max-wait: -1 #Redis连接池最大阻塞等待时机 负值代表没有限制
      max-idle: 8 #Redis最大空闲连接
      min-idle: 0 #Redis最新空闲连接
    timeout: 0 #Redis连接超时时间
mybatis:
  typeAliasesPackage: com.yjx.domain
  mapperLocations: classpath:mapper/*.xml
logging:
  path: /log
  level: INFO

3、代码实现

domain实体

private Integer uid;
private String username;
private String password;
private String name;

dao层接口

List<UserInfo> findAll();
UserInfo findById(Integer id);
UserInfo findByName(String name);
/**通过username查找用户信息;*/
public UserInfo findByUsername(String username);

service层实现

@Autowired
private UserInfoDao userInfoDao;
@Override
public UserInfo findByUsername(String username) {
    System.out.println("UserInfoServiceImpl.findByUsername()");
    return userInfoDao.findByUsername(username);
}
public List<UserInfo> findAll(){
    return userInfoDao.findAll();
}
@Override
public UserInfo findById(Integer id) {
    return userInfoDao.findById(id);
}
@Override
public UserInfo findByName(String name) {
    return userInfoDao.findByName(name);
}

controller层

@RequestMapping("user")
@RestController
public class UserController {

    @Autowired
    private UserInfoServiceImpl userInfoService;

    @GetMapping("/list/all")
    @Cacheable(value="user-key")
    public Object listAll() {
        System.out.println("若下面没出现“无缓存的时候调用”字样且能打印出数据表示测试成功");
        return userInfoService.findAll();//
    }

    @RequestMapping("/getUser/id/{id}")
    @Cacheable(value="user-key")
    public UserInfo getUser(@PathVariable("id") Integer id ) {
        UserInfo user=userInfoService.findById(id);
        System.out.println("若下面没出现“无缓存的时候调用”字样且能打印出数据表示测试成功");
        return user;
    }

    @RequestMapping("/getUser")
    @Cacheable(value="user-key")
    public List<UserInfo> findAll() {
        List<UserInfo>  user=userInfoService.findAll();
        System.out.println("若下面没出现“无缓存的时候调用”字样且能打印出数据表示测试成功");
        return user;
    }


    @Cacheable(value="user-key")
    @Scheduled(cron="*/6 * * * * ?")
    public Object jobListAll() {
        System.out.println("若下面没出现“无缓存的时候调用”字样且能打印出数据表示测试成功");
        return userInfoService.findAll();//@Scheduled(cron="*/6 * * * * ?")
    }

    @RequestMapping("/getUser/name/{name}")
    @Cacheable(value="user-key")
    public UserInfo getUserByName(@PathVariable("name") String name) {
        UserInfo user=userInfoService.findByName(name);
        System.out.println("若下面没出现“无缓存的时候调用”字样且能打印出数据表示测试成功");
        return user;
    }

    @RequestMapping("/uid")
    String uid(HttpSession session) {
        UUID uid = (UUID) session.getAttribute("uid");
        if (uid == null) {
            uid = UUID.randomUUID();
        }
        session.setAttribute("uid", uid);
        return session.getId();
    }

启动类

@MapperScan("com.yjx.dao")
@SpringBootApplication
@EnableScheduling
public class SpringbootMybatisApplication {

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

sql文件

<mapper namespace="com.yjx.dao.UserInfoDao" >
    <resultMap id="BaseResultMap" type="com.yjx.domain.UserInfo" >
        <id column="uid" property="uid"  />
        <result column="username" property="username"  />
        <result column="name" property="name"  />
        <result column="password" property="password"  />
    </resultMap>

    <sql id="Base_Column_List" >
        uid, username, password, name
    </sql>
    <select id="findAll" resultMap="BaseResultMap" >
        select
        <include refid="Base_Column_List" />
        from user_info
    </select>
    <select id="findById" resultMap="BaseResultMap" parameterType="java.lang.Integer" >
        select
        <include refid="Base_Column_List" />
        from user_info
        where uid = #{id,jdbcType=INTEGER}
    </select>

    <select id="findByUsername" resultMap="BaseResultMap" parameterType="java.lang.String" >
        select
        <include refid="Base_Column_List" />
        from user_info
        where username = #{username,jdbcType=VARCHAR}
    </select>

    <select id="findByName" resultMap="BaseResultMap" parameterType="java.lang.String" >
        select
        <include refid="Base_Column_List" />
        from user_info
        where username = #{name,jdbcType=VARCHAR}
    </select>
</mapper>

4、运行效果

SpringBoot+Mybatis框架Demo

5、源码下载

源码下载