Springboot中如何配置@Transactional对Redis的支持？

Question

I am currently working on a project which is using Redis mainly for caching purposes, I am using Oracle as the main database and Spring Data JPA to handle the database layer in my project. I need to know how to use @Transactional annotation support to handle transactions in Redis. I have already referred to lots of tutorials and documentation regarding this scenario. In most of those tutorials, there is always the same set of source codes available. But still, I didn't have a clear idea about the implementation. Because in my application there is already a data source available which I configured through property file. (Oracle database) So I doubt the implementation of the dataSource bean. And I couldn't understand the usage of transactionManager bean too. How should I implement this properly please give a detailed explanation.

Source code which I found on the internet.

@Configuration
@EnableTransactionManagement // 1
public class RedisConfig {

    @Bean
    public StringRedisTemplate stringRedisTemplate(LettuceConnectionFactory redisConnectionFactory) {
        // Configure redisTemplate
        StringRedisTemplate stringRedisTemplate = new StringRedisTemplate();
        stringRedisTemplate.setConnectionFactory(redisConnectionFactory);
        / / Open transaction support
        stringRedisTemplate.setEnableTransactionSupport(true); // 2
        return stringRedisTemplate;
    }

    @Bean
    public PlatformTransactionManager transactionManager() throws SQLException {
        return new DataSourceTransactionManager(dataSource()); // 3
    }

    @Bean
    public DataSource dataSource() throws SQLException {
        // ...
    }
}

Updated: Currently configured datasource properties in apppication.properties file.

# OracleDB connection settings
spring.datasource.url=jdbc:oracle:thin:@192.168.20.108:1521:orcl
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=oracle.jdbc.driver.OracleDriver

# HikariCP settings
spring.datasource.hikari.minimumIdle=5
spring.datasource.hikari.maximumPoolSize=20
spring.datasource.hikari.idleTimeout=30000
spring.datasource.hikari.maxLifetime=2000000
spring.datasource.hikari.connectionTimeout=30000
spring.datasource.hikari.poolName=redis-sample-pool

Resource about the Redis Transactions handling

Answer 1

There're two ways to configure DataSource

• Using the config file

  spring.datasource.url= jdbc:oracle:thin:@//localhost spring.datasource.username=test spring.datasource.password=test1234 spring.datasource.driver-class-name=oracle.jdbc.OracleDriver #hibernate config dialect for JPA, choose dialect based on the db version spring.jpa.database-platform=org.hibernate.dialect.Oracle10gDialect

You can create manually the same by reading these properties, with the help of DataSourceBuilder

@Bean
public  DataSource dataSource(){
        DataSourceBuilder dataSourceBuilder = DataSourceBuilder.create();
        dataSourceBuilder.driverClassName("oracle.jdbc.OracleDriver");
        dataSourceBuilder.url("jdbc:h2:mem:test");
        dataSourceBuilder.username("test");
        dataSourceBuilder.password("test1234");
        return dataSourceBuilder.build();
}