java-classic-code/spring-mutil-datasource/config/DynamicDataSourceConfig.java

/**
 * Copyright (c) 2018 yiidata.com All rights reserved.
 *
 * http://yiidata.com
 *
 *
 */

package com.yiidata.intergration.web.datasource.config;

import com.alibaba.druid.pool.DruidDataSource;
import com.yiidata.intergration.web.datasource.properties.DataSourceProperties;
import com.yiidata.intergration.web.datasource.properties.DynamicDataSourceProperties;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.HashMap;
import java.util.Map;

/**
 * 配置多数据源
 *
 * @author zhenqin
 */
@Configuration
@EnableConfigurationProperties(DynamicDataSourceProperties.class)
public class DynamicDataSourceConfig {
    @Autowired
    private DynamicDataSourceProperties properties;

    @Bean
    @ConfigurationProperties(prefix = "spring.datasource.druid")
    public DataSourceProperties dataSourceProperties() {
        return new DataSourceProperties();
    }

    @Bean
    public DynamicDataSource dynamicDataSource(DataSourceProperties dataSourceProperties) {
        DynamicDataSource dynamicDataSource = new DynamicDataSource();
        //默认数据源
        DruidDataSource defaultDataSource = DynamicDataSourceFactory.buildDruidDataSource(dataSourceProperties);
        dynamicDataSource.setDefaultTargetDataSource(defaultDataSource);

        // 绑定的第三方数据源
        final Map<Object, Object> dynamicDataSource1 = getDynamicDataSource();
        dynamicDataSource.setTargetDataSources(dynamicDataSource1);
        dynamicDataSource1.put("default", defaultDataSource);
        return dynamicDataSource;
    }

    private Map<Object, Object> getDynamicDataSource(){
        Map<String, DataSourceProperties> dataSourcePropertiesMap = properties.getDatasource();
        Map<Object, Object> targetDataSources = new HashMap<>(dataSourcePropertiesMap.size() + 1);
        dataSourcePropertiesMap.forEach((name, ds) -> {
            DruidDataSource druidDataSource = DynamicDataSourceFactory.buildDruidDataSource(ds);
            targetDataSources.put(name, druidDataSource);
        });

        return targetDataSources;
    }

}