小编And*_*ium的帖子

在我的应用程序中,我有一个模块,用于在数据库中搜索用户并在jsp内的表中显示它们的信息.我只是在我的应用程序中设置Spring Security.我能够从登录页面建立与数据库的连接,但由于某种原因,我的DAO的CRUD操作(在这种情况下,搜索)都没有工作.

谢谢,如果我能提供更多信息,请告诉我.

这是我的大部分堆栈跟踪.

    org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.GenericJDBCException: Cannot open connection
        org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:656)
        org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
        javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
        javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

...

org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.GenericJDBCException: Cannot open connection
    org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:596)
    org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:371)
    org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:335)
    org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:105)
    org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
    org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
    $Proxy8.searchEntity(Unknown Source)
    arlua.controller.SearchUserController.mySearchMethod(SearchUserController.java:35)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source

...

    org.hibernate.exception.GenericJDBCException: Cannot open connection
        org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:140)
        org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:128)
        org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
        org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)
        org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449)
        org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)
        org.hibernate.jdbc.BorrowedConnectionProxy.invoke(BorrowedConnectionProxy.java:74)
        $Proxy14.getTransactionIsolation(Unknown Source)

...

    java.sql.SQLException: invalid …