springboot获取redis哈希数据写入MySQL
时间: 2023-05-23 18:06:27 浏览: 238
A:可以使用Spring Data Redis来获取Redis哈希数据,并使用Spring Data JPA来将数据写入MySQL。
首先,需要在Spring Boot项目中引入Spring Data Redis和Spring Data JPA依赖:
```xml
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
```
然后,在配置文件中配置Redis和MySQL的连接信息:
```yaml
spring:
redis:
host: localhost
port: 6379
datasource:
url: jdbc:mysql://localhost:3306/mydb
username: root
password: root
```
接着,创建一个RedisService类,用于获取Redis中的哈希数据:
```java
@Service
public class RedisService {
@Autowired
private RedisTemplate<String, Object> redisTemplate;
public Map<Object, Object> getHashData(String key) {
HashOperations<String, Object, Object> hashOperations = redisTemplate.opsForHash();
return hashOperations.entries(key);
}
}
```
然后,创建一个JpaService类,用于将数据写入MySQL:
```java
@Service
public class JpaService {
@Autowired
private MyEntityRepository myEntityRepository;
public void saveData(Map<Object, Object> data) {
MyEntity entity = new MyEntity();
entity.setData(data);
myEntityRepository.save(entity);
}
}
```
最后,在Controller中使用RedisService获取数据,并使用JpaService将数据写入MySQL:
```java
@RestController
public class MyController {
@Autowired
private RedisService redisService;
@Autowired
private JpaService jpaService;
@GetMapping("/redis-to-mysql")
public void redisToMysql(String redisKey) {
Map<Object, Object> data = redisService.getHashData(redisKey);
jpaService.saveData(data);
}
}
```
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