错误信息：

Spring Boot进行DataSource配置错误：No supported DataSource type found

原因：

DataSourceBuilder.create().build() 构建时未在classPath下找到数据源：

private static <T extends DataSource> MappedDataSourceProperties<T> lookupPooled(ClassLoader classLoader,
				Class<T> type) {
			MappedDataSourceProperties<T> result = null;
			result = lookup(classLoader, type, result, "com.zaxxer.hikari.HikariDataSource",
					HikariDataSourceProperties::new);
		...................
			return result;
		}

解决办法：

pom.xml添加Hikari依赖

<dependency>
	<groupId>com.zaxxer</groupId>
	<artifactId>HikariCP</artifactId>
</dependency>

扩展：使用druidDataSource

引入依赖

<dependency>
	<groupId>com.alibaba</groupId>
	<artifactId>druid-spring-boot-starter</artifactId>
	<version>1.1.10</version>
</dependency>

示例：

    @Bean(name = "oldOrderDataSource")
    @Qualifier("oldOrderDataSource")
    @ConfigurationProperties(prefix="spring.datasource.old.order")
    public DataSource druidDataSource() {
        return DruidDataSourceBuilder.create().build();
    }

配置：

spring.datasource.druid.url=
//详情见：DruidDataSource 源码