java.sql.SQLException: Column ‘createBy‘ not found

异常报错如下：
java.sql.SQLException: Column ‘createBy’ not found.
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129)
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:89)
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:63)
at com.mysql.cj.jdbc.result.ResultSetImpl.findColumn(ResultSetImpl.java:581)
at com.mysql.cj.jdbc.result.ResultSetImpl.getInt(ResultSetImpl.java:843)
at com.trf.dao.user.UserDaoIml.getLoginUser(UserDaoIml.java:39)
at com.trf.service.user.UserServiceImpl.login(UserServiceImpl.java:31)
at com.trf.service.user.UserServiceImpl.test(UserServiceImpl.java:44)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
at org.junit.runners.ParentRunner $3 . e v a l u a t e (P a r e n t R u n n e r . j a v a : 306) a t o r g . j u n i t . r u n n e r s . P a r e n t R u n n e r . r u n (P a r e n t R u n n e r . j a v a : 413) a t o r g . j u n i t . r u n n e r . J U n i t C o r e . r u n (J U n i t C o r e . j a v a : 137) a t c o m . i n t e l l i j . j u n i t 4 . J U n i t 4 I d e a T e s t R u n n e r . s t a r t R u n n e r W i t h A r g s (J U n i t 4 I d e a T e s t R u n n e r . j a v a : 69) a t c o m . i n t e l l i j . r t . j u n i t . I d e a T e s t R u n n e r$ Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:235)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54)

java.lang.NullPointerException
at com.trf.service.user.UserServiceImpl.test(UserServiceImpl.java:45)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
at org.junit.runners.ParentRunner $3 . e v a l u a t e (P a r e n t R u n n e r . j a v a : 306) a t o r g . j u n i t . r u n n e r s . P a r e n t R u n n e r . r u n (P a r e n t R u n n e r . j a v a : 413) a t o r g . j u n i t . r u n n e r . J U n i t C o r e . r u n (J U n i t C o r e . j a v a : 137) a t c o m . i n t e l l i j . j u n i t 4 . J U n i t 4 I d e a T e s t R u n n e r . s t a r t R u n n e r W i t h A r g s (J U n i t 4 I d e a T e s t R u n n e r . j a v a : 69) a t c o m . i n t e l l i j . r t . j u n i t . I d e a T e s t R u n n e r$ Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:235)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54)

显而易见Column ‘createBy’ not found，是因为Dao层中编写的数据与数据库中的数据不一样，导致无法找到，只需要在数据库中找到 ‘createBy’ 对应的正确的数据，在Dao层中改写过来即可。

java.sql.SQLException: Column ‘createBy‘ not found

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