劳动创造了人本身。——恩格斯
官方demo：
https://github.com/spring-projects/spring-data-examples/blob/main/r2dbc/example/src/main/java/example/springdata/r2dbc/basics/TransactionalService.java
代码语言：javascript复制/*
* Copyright 2019-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package example.springdata.r2dbc.basics;
import lombok.NonNull;
import lombok.RequiredArgsConstructor;
import reactor.core.publisher.Mono;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;
/**
* @author Oliver Drotbohm
*/
@Component
@RequiredArgsConstructor
class TransactionalService {
private final @NonNull CustomerRepository repository;
/**
* Saves the given {@link Customer} unless its firstname is "Dave".
*
* @param customer must not be {@literal null}.
* @return
*/
@Transactional
public Mono<Customer> save(Customer customer) {
return repository.save(customer).map(it -> {
if (it.firstname().equals("Dave")) {
throw new IllegalStateException();
} else {
return it;
}
});
}
}可以看到是支持Transactional的
当然我们可以手动回滚事务，配置：
代码语言：javascript复制import io.r2dbc.spi.ConnectionFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.r2dbc.connection.R2dbcTransactionManager;
import org.springframework.transaction.ReactiveTransactionManager;
import org.springframework.transaction.reactive.TransactionalOperator;
@Configuration
public class R2dbcConfig {
@Bean
public ReactiveTransactionManager reactiveTransactionManager(ConnectionFactory connectionFactory) {
return new R2dbcTransactionManager(connectionFactory);
}
@Bean
public TransactionalOperator transactionalOperator(ReactiveTransactionManager txm) {
return TransactionalOperator.create(txm);
}
}使用：
代码语言：javascript复制@Resource
private TransactionalOperator transactionalOperator;
@Test
void test() {
var user = new User();
user.setId(1L);
user.setName("test");
transactionalOperator.execute(transactionStatus -> {
transactionStatus.setRollbackOnly();
return r2dbcEntityOperations.insert(user)
.thenMany(userRepository.findAll());
}).as(StepVerifier::create)
.expectNextMatches(e -> true).verifyComplete();
}
