spring R2dbcInitializationConfiguration 源码
springboot R2dbcInitializationConfiguration 代码
文件路径：/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/sql/init/R2dbcInitializationConfiguration.java
/*
* Copyright 2012-2021 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
*
* https://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 org.springframework.boot.autoconfigure.sql.init;
import io.r2dbc.spi.ConnectionFactory;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnSingleCandidate;
import org.springframework.boot.r2dbc.ConnectionFactoryBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.r2dbc.connection.init.DatabasePopulator;
import org.springframework.util.StringUtils;
/**
* Configuration for initializing an SQL database accessed via an R2DBC
* {@link ConnectionFactory}.
*
* @author Andy Wilkinson
*/
@Configuration(proxyBeanMethods = false)
@ConditionalOnClass({ ConnectionFactory.class, DatabasePopulator.class })
@ConditionalOnSingleCandidate(ConnectionFactory.class)
@ConditionalOnMissingBean({ SqlR2dbcScriptDatabaseInitializer.class, SqlDataSourceScriptDatabaseInitializer.class })
class R2dbcInitializationConfiguration {
@Bean
SqlR2dbcScriptDatabaseInitializer r2dbcScriptDatabaseInitializer(ConnectionFactory connectionFactory,
SqlInitializationProperties properties) {
return new SqlR2dbcScriptDatabaseInitializer(
determineConnectionFactory(connectionFactory, properties.getUsername(), properties.getPassword()),
properties);
}
private static ConnectionFactory determineConnectionFactory(ConnectionFactory connectionFactory, String username,
String password) {
if (StringUtils.hasText(username) && StringUtils.hasText(password)) {
return ConnectionFactoryBuilder.derivedFrom(connectionFactory).username(username).password(password)
.build();
}
return connectionFactory;
}
}
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- 所属分类： 后端技术
- 本文标签： Java Spring Spring Boot
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