com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException：'字段列表'中的未知列'JDODETACHEDSTATE'

在eclipse中使用Eclipse持久性和Google App Engine時，我總是收到此錯誤。com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException：'字段列表'中的未知列'JDODETACHEDSTATE'

以下是堆棧跟蹤。請讓我知道什麼可能導致此問題，因爲代碼在maven之前沒有任何問題。

[EL Warning]: 2015-08-15 00:47:59.466--UnitOfWork(914108319)--Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.4.2.v20130514-5956486): org.eclipse.persistence.exceptions.DatabaseException 
    Internal Exception: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'JDODETACHEDSTATE' in 'field list' 
    Error Code: 1054 
    Call: SELECT user_credential_id, JDODETACHEDSTATE, password, user_name, lecturer_id FROM user_credentials WHERE ((user_name = ?) AND (password = ?)) 
    bind => [2 parameters bound] 
    Query: ReadAllQuery(referenceClass=UserCredential sql="SELECT user_credential_id, JDODETACHEDSTATE, password, user_name, lecturer_id FROM user_credentials WHERE ((user_name = ?) AND (password = ?))") 
    Aug 15, 2015 12:47:59 AM com.mana.school.attendance.service.impl.LoginServiceImpl doLogin 
    SEVERE: Exception while validating login 

Local Exception Stack: 

    Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.4.2.v20130514-5956486): org.eclipse.persistence.exceptions.DatabaseException 
    Internal Exception: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'JDODETACHEDSTATE' in 'field list' 
    Error Code: 1054 
    Call: SELECT user_credential_id, JDODETACHEDSTATE, password, user_name, lecturer_id FROM user_credentials WHERE ((user_name = ?) AND (password = ?)) 
    bind => [2 parameters bound] 
    Query: ReadAllQuery(referenceClass=UserCredential sql="SELECT user_credential_id, JDODETACHEDSTATE, password, user_name, lecturer_id FROM user_credentials WHERE ((user_name = ?) AND (password = ?))") 
    at org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:333) 
    at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:646) 
    at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:537) 
    at org.eclipse.persistence.internal.sessions.AbstractSession.basicExecuteCall(AbstractSession.java:1805) 
    at org.eclipse.persistence.sessions.server.ServerSession.executeCall(ServerSession.java:566) 
    at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:207) 
    at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:193) 
    at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeSelectCall(DatasourceCallQueryMechanism.java:264) 
    at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.selectAllRows(DatasourceCallQueryMechanism.java:648) 
    at org.eclipse.persistence.internal.queries.ExpressionQueryMechanism.selectAllRowsFromTable(ExpressionQueryMechanism.java:2706) 
    at org.eclipse.persistence.internal.queries.ExpressionQueryMechanism.selectAllRows(ExpressionQueryMechanism.java:2659) 
    at org.eclipse.persistence.queries.ReadAllQuery.executeObjectLevelReadQuery(ReadAllQuery.java:421) 
    at org.eclipse.persistence.queries.ObjectLevelReadQuery.executeDatabaseQuery(ObjectLevelReadQuery.java:1150) 
    at org.eclipse.persistence.queries.DatabaseQuery.execute(DatabaseQuery.java:852) 
    at org.eclipse.persistence.queries.ObjectLevelReadQuery.execute(ObjectLevelReadQuery.java:1109) 
    at org.eclipse.persistence.queries.ReadAllQuery.execute(ReadAllQuery.java:393) 
    at org.eclipse.persistence.queries.ObjectLevelReadQuery.executeInUnitOfWork(ObjectLevelReadQuery.java:1197) 
    at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.internalExecuteQuery(UnitOfWorkImpl.java:2879) 
    at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1607) 
    at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1589) 
    at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1554) 
    at org.eclipse.persistence.internal.jpa.QueryImpl.executeReadQuery(QueryImpl.java:231) 
    at org.eclipse.persistence.internal.jpa.QueryImpl.getSingleResult(QueryImpl.java:442) 
    at org.eclipse.persistence.internal.jpa.EJBQueryImpl.getSingleResult(EJBQueryImpl.java:382) 
    at com.mana.school.attendance.dao.impl.UserCredentialDAOImpl.validateLogin(UserCredentialDAOImpl.java:60) 
    at com.mana.school.attendance.service.impl.LoginServiceImpl.doLogin(LoginServiceImpl.java:49) 
    at com.mana.school.attendance.web.LoginServlet.performLogin(LoginServlet.java:132) 
    at com.mana.school.attendance.web.LoginServlet.service(LoginServlet.java:63) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166) 
    at com.google.appengine.api.socket.dev.DevSocketFilter.doFilter(DevSocketFilter.java:74) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.ResponseRewriterFilter.doFilter(ResponseRewriterFilter.java:127) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.HeaderVerificationFilter.doFilter(HeaderVerificationFilter.java:34) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:63) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:125) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.DevAppServerModulesFilter.doDirectRequest(DevAppServerModulesFilter.java:366) 
    at com.google.appengine.tools.development.DevAppServerModulesFilter.doDirectModuleRequest(DevAppServerModulesFilter.java:349) 
    at com.google.appengine.tools.development.DevAppServerModulesFilter.doFilter(DevAppServerModulesFilter.java:116) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388) 
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) 
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) 
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) 
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418) 
    at com.google.appengine.tools.development.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:98) 
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) 
    at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:502) 
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) 
    at org.mortbay.jetty.Server.handle(Server.java:326) 
    at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) 
    at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:938) 
    at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755) 
    at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218) 
    at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) 
    at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409) 
    at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)

來源

2015-08-15 Arko Ghosh

你可能已經花了一些努力來格式化它。 –

第一次在這裏發佈，不習慣格式化工具。我現在編輯它。 –

因此，從查詢語句中刪除JDODETACHEDSTATE應該解決問題，因爲它引起的問題，並且您提到您不需要此列。 –

你沒有一列名爲JDODETACHEDSTATE表中的user_credentials

來源

2015-08-15 05:06:04 Javy

我不想要這個專欄，爲什麼在那裏？實體類沒有它們。我是否需要更改某些配置或編輯某些內容？如果您知道任何解決方案，請告訴我。 –

Javy是正確的有在你的表中沒有這樣的列，你所指

把你的SELECT查詢例如

SELECT user_credential_id`, JDODETACHEDSTATE`, password, user_name, lecturer_id FROM user_credentials WHERE ((user_name = ?) AND (password = ?)) 
    bind =>

JDODETACHEDSTATE不存在於您的user_credentials表格中，並且如果沒有必要刪除字段從選擇查詢本身。

來源

2015-08-15 06:54:55

com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException：'字段列表'中的未知列'JDODETACHEDSTATE'

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