Question

我在做hibernate和spring出现了Exception in thread "main" java.lang.UnsupportedOperationException

求解答：错误异常为：
save
session factory class:class org.hibernate.internal.SessionFactoryImpl
Exception in thread "main" java.lang.UnsupportedOperationException
at org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:116)
at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:554)
at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:138)
at org.hibernate.internal.AbstractSessionImpl$NonContextualJdbcConnectionAccess.obtainConnection(AbstractSessionImpl.java:380)
at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:227)
at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.getConnection(LogicalConnectionImpl.java:170)
at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.doBegin(JdbcTransaction.java:67)
at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.begin(AbstractTransactionImpl.java:160)
at org.hibernate.internal.SessionImpl.beginTransaction(SessionImpl.java:1364)
at com.bjsxt.dao.impl.UserDaoImpl.save(UserDaoImpl.java:35)
at com.bjsxt.service.UserService.save(UserService.java:22)
at com.bjsxt.test.test.main(test.java:16)

我的主程序是：
package com.bjsxt.dao.impl;

import javax.annotation.Resource;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.springframework.stereotype.Component;

import com.bjsxt.dao.UserDao;
import com.bjsxt.model.User;
@Component("u")
public class UserDaoImpl implements UserDao{
private SessionFactory sessionFactory;
public SessionFactory getSessionFactory() {
return sessionFactory;
}
@Resource
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
@Override
public void save(User user) {

System.out.println("session factory class:" + sessionFactory.getClass());
Session s = sessionFactory.openSession();
s.beginTransaction();
s.save(user);
s.getTransaction().commit();
System.out.println("user saved!");

}

}

Answer 1

应该是数据库链接配置存在问题导致，获取数据库链接出现错误

Answer 2

UserDao的代码贴下

追问

UserDao代码：
package com.bjsxt.dao;

import com.bjsxt.model.User;

public interface UserDao {
public void save(User user);
}

追答

你这样就save啊，太夸张了吧，配置文件中对hibernate的配置不全，配置好了后你就可以让userDao实现HIbernareDao，这样子就可以重载他的save方法了，不然你用框架做什么，什么都没配置，也没看你配置事务

追问

不好意思，刚刚点错了，点成采纳了，能加我Q吗 75065642

Answer 3

s.save(user);
直接save就行了

事务不用控制,通过配置文件操作