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JdbcTemplate Incorrect result size

 
Greenhorn
Posts: 2
Eclipse IDE Spring Java
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Hello please help me i have error. when I click on the button appears this error

Exception in thread "AWT-EventQueue-0" org.springframework.dao.EmptyResultDataAccessException: Incorrect result size: expected 1, actual 0
at org.springframework.dao.support.DataAccessUtils.requiredSingleResult(DataAccessUtils.java:71)
at org.springframework.jdbc.core.JdbcTemplate.queryForObject(JdbcTemplate.java:806)
at com.project.sql.EmployeeDAOJDBCTemplateImpl.login(EmployeeDAOJDBCTemplateImpl.java:41)
at com.project.user.Login.actionPerformed(Login.java:228)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)






EmployeeDAOJDBCTemplateImpl



Employee


App-context.xml



Sorry for my bad English.


 
Rancher
Posts: 2759
32
Eclipse IDE Spring Tomcat Server
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As per Spring's javadocs the exception is thrown when it expects the SQL to return 1 row but it got 0 rows. It says so in the stack trace that you posted Incorrect result size: expected 1, actual 0
is ot returning any records. Have you
So, the problem is, obviously, that the SQL SELECT Username,Password,Groups FROM [Alex].[dbo].[tblUsers] WHERE Username Like ? And Password Like ? is not returning records. Have you tried running the SQL with the employee username/password that you are testing with?
 
Alex Misyuk
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Posts: 2
Eclipse IDE Spring Java
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Jayesh A Lalwani wrote:As per Spring's javadocs the exception is thrown when it expects the SQL to return 1 row but it got 0 rows. It says so in the stack trace that you posted Incorrect result size: expected 1, actual 0
is ot returning any records. Have you
So, the problem is, obviously, that the SQL SELECT Username,Password,Groups FROM [Alex].[dbo].[tblUsers] WHERE Username Like ? And Password Like ? is not returning records. Have you tried running the SQL with the employee username/password that you are testing with?




but I do not want that there was such a error. If there is no user in the database let returns zero or something else. How this can be done?
 
Jayesh A Lalwani
Rancher
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Either run a query that gets count before running the real query

OR

catch the exception
 
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