使用springboot一键按钮将redis数据同步到MySQL
时间: 2023-05-23 09:04:29 浏览: 313
A:使用springboot实现将redis数据同步到MySQL可以采取以下步骤:
1. 配置pom.xml依赖,引入redis和MySQL驱动。
2. 编写RedisRepository类,继承RedisTemplate,并实现将Redis数据转为MySQL数据的方法。
3. 编写MySQLRepository类,使用JdbcTemplate进行MySQL数据操作。
4. 编写同步服务类,使用注解@Scheduled定时任务,从RedisRepository获取Redis数据并转成MySQL数据,再存储到MySQLRepository中。
5. 在Springboot启动类中添加@EnableScheduling注解开启定时任务。
6. 运行程序,即可实现将Redis数据同步到MySQL。
下面是示例代码:
1. pom.xml依赖配置
```xml
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
<version>2.2.2.RELEASE</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.17</version>
</dependency>
</dependencies>
```
2. RedisRepository类
```java
public class RedisRepository extends RedisTemplate<String, Object> {
public RedisRepository(RedisConnectionFactory redisConnectionFactory) {
setConnectionFactory(redisConnectionFactory);
afterPropertiesSet();
}
// 将Redis数据转为MySQL数据
public List<Map<String, Object>> redisToMysqlData() {
List<Map<String, Object>> dataList = new ArrayList<>();
Cursor<Map.Entry<String, Object>> cursor = this.opsForHash().scan("redis_key", ScanOptions.NONE);
while (cursor.hasNext()) {
Map.Entry<String, Object> entry = cursor.next();
Map<String, Object> data = new HashMap<>();
data.put("id", entry.getKey());
data.put("value", entry.getValue());
dataList.add(data);
}
return dataList;
}
}
```
3. MySQLRepository类
```java
public class MySQLRepository{
private final JdbcTemplate jdbcTemplate;
public MySQLRepository(DataSource dataSource) {
jdbcTemplate = new JdbcTemplate(dataSource);
}
// 存储MySQL数据
public void storeMysqlData(List<Map<String, Object>> dataList) {
dataList.forEach(data -> {
String sql = "INSERT INTO `mysql_table` (`id`, `value`) VALUES (?, ?)";
Object[] params = new Object[]{data.get("id"), data.get("value")};
jdbcTemplate.update(sql, params);
});
}
}
```
4. 同步服务类
```java
@Service
public class SyncService {
private final RedisRepository redisRepository;
private final MySQLRepository mySQLRepository;
public SyncService(RedisRepository redisRepository, MySQLRepository mySQLRepository) {
this.redisRepository = redisRepository;
this.mySQLRepository = mySQLRepository;
}
// 定时任务,每5分钟同步一次
@Scheduled(cron = "0 */5 * * * ?")
public void syncRedisToMySQL() {
List<Map<String, Object>> dataList = redisRepository.redisToMysqlData();
mySQLRepository.storeMysqlData(dataList);
}
}
```
5. 启动类添加@EnableScheduling注解
```java
@SpringBootApplication
@EnableScheduling
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
```
这样就完成了将Redis数据同步到MySQL的操作。
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