Spring MVC & Hibernate 无法获取当前线程的事务同步会话

Question

我有一个可以与hibernate一起工作的Spring应用程序。休眠的会话未创建。它引发错误，如下所示
[控制台错误][1]：https://i.stack.imgur.com/Mb0Ah.png
我的调度员代码如下

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
    http://www.springframework.org/schema/context   http://www.springframework.org/schema/context/spring-context-4.1.xsd">

    <context:component-scan base-package="com.oi.controller" />

    <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/views/" />
        <property name="suffix" value=".jsp" />
    </bean>
    <!-- data source -->
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"
        >
        <property name="driverClassName" value="com.mysql.jdbc.Driver" />
        <property name="url" value="jdbc:mysql://localhost:61391/springmvc2k" />
        <property name="username" value="adminHYMgZHE" />
        <property name="password" value="byIkcunaje5K" />
    </bean> 
    <!-- Hibernate SessionFactory -->
    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
                <prop key="hibernate.hbm2ddl.auto">update</prop>
                <prop key="hibernate.show_sql">true</prop>
            </props>
        </property>
        <property name="packagesToScan" value="com.oi.bean"></property>
    </bean>
    <!-- The transaction manager -->
    <tx:annotation-driven transaction-manager="transactionManager" />
    <bean id="transactionManager"
        class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>
</beans>

我的豆类

import javax.persistence.Column;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;
import org.hibernate.annotations.Entity;
import org.springframework.transaction.annotation.EnableTransactionManagement;
@EnableTransactionManagement
@Entity
@Table(name="users")
public class User {
    @Id
    @GeneratedValue
    int id;
    @Column(name = "username")
    String name;
    @Column(name = "password")
    String password;
    @Column(name = "email")
    String email;
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
    public String getEmail() {
        return email;
    }
    public void setEmail(String email) {
        this.email = email;
    }
}

我的弹簧控制器如下

import java.util.List;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import com.oi.bean.User;
@Controller
public class BaseController {
    @Autowired
    private SessionFactory sessionFactory;
    @RequestMapping(value="/")
    public String getRespnse(Model m) {
        Session session =sessionFactory.getCurrentSession();
    //  List<User> usrLst=(List<User>) session.createQuery("from User");
    //  System.out.println("IN"+usrLst);
        return "home";
    }
    public void setSessionFactory(SessionFactory sessionFactory) {
        this.sessionFactory = sessionFactory;
    }
}

请帮忙。如何继续。。！！！

Answer 1

  @RequestMapping(value="/")
  @Transactional
  public String getRespnse(Model m) {
        Session session =sessionFactory.getCurrentSession();
    //  List<User> usrLst=(List<User>) session.createQuery("from User");
    //  System.out.println("IN"+usrLst);
        return "home";
  }

1. 使用控制器方法添加@Transactional
2. 将@EnableTransactionManagement删除到用户类

试试看，我认为它会为你工作

Answer 2

在BaseController类的getRespnse(Model m)上添加@Transactional属性，然后按如下方式尝试。

@RequestMapping(value="/")
@Transactional
public String getRespnse(Model m) {
    Session session =sessionFactory.getCurrentSession();

Answer 3

在我的例子中，我在整个控制器中添加了@Transactional注释，它在中工作