spring cloud mybatis动态配置多数据源

/**
 * 使用本地线程保存数据源对应的key值,在动态获取数据源时将在此获取key值
 */
public class DatabaseContextHolder {
   
   
    private static final ThreadLocal<String> contextHolder = new ThreadLocal<String>();

    public static void setDatabase(String type) {
   
   
        contextHolder.set(type);
    }

    public static String getDatabase() {
   
   
        return contextHolder.get();
    }

    public static void clearDatabase() {
   
   
        contextHolder.remove();
    }
}

/**
 * 动态数据源需要继承AbstractRoutingDataSource类,在spring动态获取数据源的时候将调用
 * determineCurrentLookupKey方法获取key值
 */
public class DynamicDataSource extends AbstractRoutingDataSource {
   
   
    @Override
    protected Object determineCurrentLookupKey() {
   
   
        return DatabaseContextHolder.getDatabase();
    }
}

import com.alibaba.druid.spring.boot.autoconfigure.DruidDataSourceBuilder;
//import com.baomidou.mybatisplus.entity.GlobalConfiguration;
import co