java - 測驗的時候出現錯誤，幫忙看怎麼回事。
這是錯誤提示
java.lang.ClassCastException: org.hibernate.boot.registry.internal.BootstrapServiceRegistryImpl cannot be cast to org.hibernate.boot.registry.StandardServiceRegistry
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:655)
at db.MyHibernateSessionFactory.getSessionFactory(MyHibernateSessionFactory.java:20)
at service.impl.UsersDAOImpl.usersLogin(UsersDAOImpl.java:21)
at service.impl.TestUsersDAOImpl.testUsersLogin(TestUsersDAOImpl.java:14)
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:497)
at org.junit.runners.model.FrameworkMethod.runReflectiveCall(FrameworkMethod.java:45)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
at org.junit.runners.ParentRunner.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.accesspackage service.impl;
import org.junit.Test;
import entity.Users;
import junit.framework.Assert;
public class TestUsersDAOImpl {
@Test
public void testUsersLogin(){
Users u = new Users(1,"kelvin","kelvin");
UsersDAOImpl udao = new UsersDAOImpl();
Assert.assertEquals(true, udao.usersLogin(u));
}
}
0(ParentRunner.java:50)
at org.junit.runners.ParentRunner.evaluate(ParentRunner.java:222)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
測試類別TestUsersDAOImpl。
package db;
import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;
public class MyHibernateSessionFactory {
private static SessionFactory sessionFacotry;//会话工厂属性
//构造方法私有化，保证单例模式
private MyHibernateSessionFactory(){
}
//公有的静态方法，活得会话工厂对象
public static SessionFactory getSessionFactory(){
if(sessionFacotry==null){
Configuration config = new Configuration().configure();
ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder().applySettings(config.getProperties()).getBootstrapServiceRegistry();
sessionFacotry = config.buildSessionFactory(serviceRegistry);
return sessionFacotry;
}
else{
return sessionFacotry;
}
}
}
自訂session工廠MyHibernateSessionFactory。
package service.impl;
import java.util.List;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;
import db.MyHibernateSessionFactory;
import entity.Users;
import service.UsersDAO;
public class UsersDAOImpl implements UsersDAO{
@Override
public boolean usersLogin(Users u) {
// TODO Auto-generated method stub
Transaction tx = null;
String hql = "";
try{
Session session = MyHibernateSessionFactory.getSessionFactory().getCurrentSession();
tx = session.beginTransaction();
hql = "from Users where username=? and password=? ";
Query query = session.createQuery(hql);
query.setParameter(0, u.getUsername());
query.setParameter(1, u.getPassword());
List list = query.list();
tx.commit();
if(list.size()>0){
return true;
}
else{
return false;
}
}
catch(Exception ex){
ex.printStackTrace();
return false;
}
finally{
if(tx!=null){
//tx.commit();
tx=null;
}
}
}
}
UsersDAOImpl。
rrreee
