單資料來源配置，可以採用springboot的自動載入mybatis，

application.properties中配置如下：不需要特殊配置即可

@MapperScan("com.nox.dsp.dao")

#spring.datasource.type = org.apache.commons.dbcp2.BasicDataSource
#初始化連線
#spring.datasource.dbcp2.initial-size = 10
#spring.datasource.dbcp2.max-wait-millis = 10000
#最大空閒連線
#spring.datasource.dbcp2.max-idle=20
 
#最小空閒連線
#spring.datasource.dbcp2.min-idle=5
#spring.datasource.dbcp2.pool-prepared-statements = true
#spring.datasource.dbcp2.max-open-prepared-statements = 20
#檢測資料庫的查詢語句
#spring.datasource.dbcp2.validation-query = select 1 from dual
#（即在獲取Connection物件時檢測其可用性）  這樣會影響效能，但是這個配置是最有效的。
#spring.datasource.dbcp2.test-on-borrow = true
 
#設定當連線被歸還時，是否要提交所有還未完成的事務
#spring.datasource.dbcp2.test-on-return = false
#有些資料庫連線的時候有超時限制（mysql連線在8小時後斷開），或者由於網路中斷等原因，連線池的連線會出現失效的情況，這時候設定一個testWhileIdle引數為true，可以保證連線池內部定時檢測連線的可用性，不可用的連線會被拋棄或者重建，最大情況的保證從連線池中得到的Connection物件是可用的
#spring.datasource.dbcp2.test-while-idle = true
#每隔五分鐘檢測空閒超過10分鐘的連線
#spring.datasource.dbcp2.min-evictable-idle-time-millis = 600000
 
#spring.datasource.dbcp2.time-between-eviction-runs-millis = 300000

去掉此註解：

@MapperScan("com.nox.dsp.dao")

#mysql dsp庫
spring.datasource.dsp.url = jdbc:mysql://XXXX
spring.datasource.dsp.username = ad
spring.datasource.dsp.password = ad
spring.datasource.dsp.driver-class-name = com.mysql.jdbc.Driver
spring.datasource.dsp.max-idle = 10
spring.datasource.dsp.max-wait = 10000
spring.datasource.dsp.min-idle = 5
spring.datasource.dsp.initial-size = 5
spring.datasource.dsp.validation-query = SELECT 1
spring.datasource.dsp.test-on-borrow = false
spring.datasource.dsp.test-while-idle = true
spring.datasource.dsp.time-between-eviction-runs-millis = 18800
spring.datasource.dsp.type = com.alibaba.druid.pool.DruidDataSource#mysql operation庫
spring.datasource.operation.url = jdbc:mysql://XXX
spring.datasource.operation.username = ad
spring.datasource.operation.password = ad
spring.datasource.operation.driver-class-name = com.mysql.jdbc.Driver
spring.datasource.operation.max-idle = 10
spring.datasource.operation.max-wait = 10000
spring.datasource.operation.min-idle = 5
spring.datasource.operation.initial-size = 5
spring.datasource.operation.validation-query = SELECT 1
spring.datasource.operation.test-on-borrow = false
spring.datasource.operation.test-while-idle = true
spring.datasource.operation.time-between-eviction-runs-millis = 18800
spring.datasource.operation.type = com.alibaba.druid.pool.DruidDataSource

新增為如下資料來源配置即可