部分引自 www.javaboy.org
新建项目添加四个依赖
因为在springboot2.1.5之后远程连接redis强制要求添加security依赖
image.png
对redis进行配置
# ip
spring.redis.host=127.0.0.1
# 密码
spring.redis.password=12345
# 端口
spring.redis.port=6379
# redis数据库索引
spring.redis.database=0
User实体类 实现 Serializable 可以被序列化
package org.neuedu.redis.bean;
import java.io.Serializable;
public class User implements Serializable {
private Integer id;
private String name;
private String address;
@Override
public String toString() {
return "User{" +
"id=" + id +
", name='" + name + '\'' +
", address='" + address + '\'' +
'}';
}
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 String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
}
启动类上添加启用缓存注解
package org.neuedu.redis;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cache.annotation.EnableCaching;
@SpringBootApplication
@EnableCaching
public class RedisApplication {
public static void main(String[] args) {
SpringApplication.run(RedisApplication.class, args);
}
}
UserService
package org.neuedu.redis.service;
import org.neuedu.redis.bean.User;
import org.springframework.cache.annotation.CacheConfig;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.CachePut;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.stereotype.Service;
@Service
@CacheConfig(cacheNames = "c1") // 缓存key值前缀
public class UserService {
@Cacheable // 启用缓存，并以id作为key值存储
public User findUser(Integer id) {
System.out.println("findUser>>>>"+id);
User user = new User();
user.setId(id);
user.setName("zhangsan");
user.setAddress("yinzhenn@neusoft.com");
return user;
}
@CacheEvict // 当删除后台数据时调用该方法，同步更新缓存数据库
public void delete(Integer id) {
System.out.println("delete>>>>"+id);
}
@CachePut(key = "#user.id") // 当修改后台数据时，同步更新缓存数据库
public User update(User user) {
System.out.println("update>>>>"+user.getId());
return user;
}
}
利用单元测试可以测一下与预想结果是否一致
关于key值的定义还可以根据自己的需要定制，在这里就不做讲解了
