Tutoriel détaillé sur l'intégration du framework Redis pour construire SpringBoot2.X

  4.0.0  org.springframework.boot spring-boot-starter-parent 2.2.2.RELEASE    com.heny spring-boot-redis 0.0.1-SNAPSHOT spring-boot-redis Demo project for Spring Boot  1.8    org.springframework.boot spring-boot-starter-web   org.mybatis.spring.boot mybatis-spring-boot-starter 2.1.1   mysql mysql-connector-java runtime   org.springframework.boot spring-boot-starter-test test   org.junit.vintage junit-vintage-engine        org.springframework.boot spring-boot-maven-plugin    

 org.springframework.boot spring-boot-starter-data-redis 

package com.henya.springboot.bean; import java.io.Serializable; public class Employee implements Serializable{ private Integer id; private String lastName; private String email; private Integer gender; //性别 1男 0女 private Integer dId; public Employee() { super(); } public Employee(Integer id, String lastName, String email, Integer gender, Integer dId) { super(); this.id = id; this.lastName = lastName; this.email = email; this.gender = gender; 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 String getEmail() { return email; } public void setEmail(String email) { this.email = email; } public Integer getGender() { return gender; } public void setGender(Integer gender) { this.gender = gender; } public Integer getdId() { return dId; } public void setdId(Integer dId) { this.dId = dId; } @Override public String toString() { return "Employee [id=" + id + ", lastName=" + lastName + ", email=" + email + ", gender=" + gender + ", dId=" + dId + "]"; } }

#serverTimezone用于指定时区，不然会报错 spring.datasource.url=jdbc:mysql://localhost:3306/cache?serverTimezone=UTC spring.datasource.username=root spring.datasource.password=123456 # 开启驼峰命名法规则 mybatis.configuration.map-underscore-to-camel-case=true #日志级别 logging.level.com.henya.springboot.mapper=debug

package com.henya.springboot.mapper; import com.henya.springboot.bean.Employee; import org.apache.ibatis.annotations.*; @Mapper public interface EmployeeMapper { @Select("SELECT * FROM employee WHERE id=#{id}") public Employee getEmpById(Integer id); @Update("UPDATE employee SET lastName=#{lastName},email=#{email},gender=#{gender},d_id=#{dId} WHERE id=#{id}") public void updateEmp(Employee employee); @Delete("DELETE FROM emlpoyee WHERE id=#{id}") public void delEmpById(Integer id); @Insert("INSERT INTO employee(lastName, email, gender, d_id) VALUES (#{lastName}, #{email}, #{gender}, #{dId})") public Employee insertEmp(Employee employee); @Select("SELECT * FROM employee WHERE lastName=#{lastName}") public Employee getEmpByLastName(String lastName); }

@MapperScan("com.henya.springboot.mapper") @SpringBootApplication @EnableCaching //开启缓存 public class SpringBootRedisApplication { public static void main(String[] args) { SpringApplication.run(SpringBootRedisApplication.class, args); } }

package com.henya.springboot.service; import com.henya.springboot.bean.Employee; import com.henya.springboot.mapper.EmployeeMapper; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.cache.annotation.*; import org.springframework.stereotype.Service; @CacheConfig(cacheNames = "emp") //抽取缓存的公共配置 @Service public class EmployeeService { @Autowired EmployeeMapper employeeMapper; /** * @param id * @return */ @Cacheable(cacheNames = {"emp"},keyGenerator = "myKeyGenerator") public Employee getEmpById(Integer id) { System.err.println("开始查询"+ id +"号员工"); Employee employee = employeeMapper.getEmpById(id); return employee; } /** * @CachePut：既调用方法（这个方法必须要执行），又更新缓存数据 * @param employee * @return */ @CachePut(value = "emp",key = "#result.id") public Employee updateEmp(Employee employee){ System.err.println("开始更新" + employee.getId() + "号员工"); employeeMapper.updateEmp(employee); return employee; } /** * @CacheEvict：缓存清除 * @param id */ @CacheEvict(value = "emp",beforeInvocation = true) public void deleteEmp(Integer id){ System.err.println("删除" + id + "员工"); int i = 10/0; }

package com.henya.springboot.controller; import com.henya.springboot.bean.Employee; import com.henya.springboot.service.EmployeeService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RestController; /** * @Description: * @Author：HenYa * @CreatTime：2019/12/1 12:44 */ @RestController public class EmployeeController { @Autowired EmployeeService employeeService; @GetMapping("/emp/{id}") public Employee getEmpById(@PathVariable("id") Integer id){ Employee employee = employeeService.getEmpById(id); return employee; } @GetMapping("/emp") public Employee updateEmp(Employee employee){ Employee emp = employeeService.updateEmp(employee); return emp; } }

static RedisSerializer