Question

mybatis 获取对象为空,咋回事呢,debug 也是执行力sql语句

EBUG - PooledDataSource forcefully closed/removed all connections.
DEBUG - PooledDataSource forcefully closed/removed all connections.
DEBUG - PooledDataSource forcefully closed/removed all connections.
DEBUG - Created connection 228598363.
DEBUG - ooo Connection Opened
DEBUG - ==> Executing: select * from cake where cake_id = ?
DEBUG - ==> Parameters: 1(Integer)
DEBUG - <== Columns: cake_id, cake_name, cake_price
DEBUG - <== Row: 1, 慕斯1, 500.0000
Exception in thread "main" java.lang.NullPointerException
at com.mybatis.Test.getRecord(Test.java:56)
at com.mybatis.Test.main(Test.java:33)

Answer 1

十有八九是你的对象没有初始化导致的空。 你看看你的DAO类有没有实例化