springboot与redis

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项目结构

gradle配置文件：

dependencies {
    compile('org.springframework.boot:spring-boot-starter-cache')
    compile('org.springframework.boot:spring-boot-starter-data-redis')
    compile('org.springframework.boot:spring-boot-starter-web')
    compile('org.mybatis.spring.boot:mybatis-spring-boot-starter:1.3.2')
    compile('org.springframework.boot:spring-boot-starter-jdbc')
    runtime('mysql:mysql-connector-java')
    testCompile('org.springframework.boot:spring-boot-starter-test')
}

application.yml

spring:
   datasource:
    url: jdbc:mysql://localhost:3306/test?characterEncoding=utf8&useSSL=false
    username: root
    password: root
    driver-class-name: com.mysql.jdbc.Driver
   redis:
     host: 140.143.1.xx  //ip地址
mybatis:
  configuration:
    map-underscore-to-camel-case: true #开启驼峰命名匹配

　

student实体类

public class Student implements Serializable {
    private Integer id;
    private String name;
    private Integer age;

    public Integer getId() {
        return id;
    }

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

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }
}

dao

@Mapper
public interface StudentMapper {
    @Select("select * from t_student where id=#{id}")
    Student selectById(@Param("id") Integer id);
}

service

@Service
public class StudentServiceImpl implements IStudentService {
    @Autowired
    StudentMapper studentMapper;

    @Cacheable(cacheNames = "student", key = "#id")
    @Override
    public Student getById(Integer id) {
        System.out.println("查询" + id + "号学生");
        return studentMapper.selectById(id);
    }
}

controller

@RestController
public class StudentController {

    @Autowired
    IStudentService iStudentService;

    @GetMapping("/stu/{id}")
    public Student getById(@PathVariable("id") Integer id) {
        return iStudentService.getById(id);
    }
}

@SpringBootApplication
@MapperScan("com.iteng.springbootredis.mapper")
@EnableCaching //开启基于注解的缓存
public class SpringbootRedisApplication {

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

第一次访问：http://localhost:8080/stu/1

浏览器显示：

控制台输出：

 再次访问：http://localhost:8080/stu/1

 可以看到控制没有再次输出，证明第二次查询没有查询数据库，而是从缓存中查询

打开redis客户端：可以看到数据已经存入redis中

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