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我有简单的数据库（使用MySQL），一个汽车表：Spring + Hibernate的：使用JUnit初始化数据库不起作用
create table vehicle (
vehicle_no varchar(10) not null,
color varchar(10),
wheel int,
seat int,
primary key (vehicle_no)
) engine = InnoDB;
在Java中，我有DAO对象应该查询所有车辆（其它DAO的方法是ommited）。这DAO应该加入现有的事务或如果需要创建新的：
@Transactional(propagation=Propagation.REQUIRED, readOnly=false)
public class HibernateVehicleDao implements VehicleDao {
private SessionFactory sessionFactory;
@Autowired
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
@Override
public List<Vehicle> findAll() {
return currentSession().createQuery("from Vehicle").list();
}
}
现在，我已经写了JUnit测试（JUnit4）用于DAO。在运行测试方法之前，应将10辆车辆插入数据库，运行后应删除所有车辆。我已经分开测试这种行为与Spring的JDBC和一切工作正常，所以应该没有问题。
@ContextConfiguration(locations = "/sk/xorty/dataaccess/dataaccess-beans.xml")
public class HibernateVehicleDaoTest extends AbstractTransactionalJUnit4SpringContextTests {
private static final int COUNT = 10;
@Autowired
@Qualifier("hibernateVehicleDao")
private VehicleDao dao;
@Before
public void setUp() {
String insert =
"INSERT INTO VEHICLE (VEHICLE_NO, COLOR, WHEEL, SEAT) VALUES (?, ?, ?, ?)";
List<Object[]> argsList = new ArrayList<>();
for (int i = 0; i < COUNT; i++) {
argsList.add(VehicleUtil.nextVehicleArgs());
}
simpleJdbcTemplate.batchUpdate(insert, argsList);
}
@After
public void tearDown() {
simpleJdbcTemplate.update("DELETE FROM VEHICLE", (Object[]) null);
}
@Test
public void testFindAll() {
assertEquals (COUNT, dao.findAll().size());
}
}
一切加载，所以我怀疑配置是正确的和依赖性得到适当的注入。
问题是，测试失败，因为数据库是空的（没有车辆）。当我手动插入它们时，它们不会从另一方面删除。
请尝试注意使用交易注释，我对此很新，我认为我可能在那里做了错误。
这是我的bean配置文件，如果这可能是任何帮助：
<?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-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">
<context:annotation-config />
<tx:annotation-driven />
<!-- shared data source -->
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName"
value="com.mysql.jdbc.jdbc2.optional.MysqlDataSource" />
<property name="url" value="jdbc:mysql://localhost/vehicles" />
<property name="username" value="root" />
<property name="password" value="" />
</bean>
<!-- JDBC transaction manager -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<!-- hibernate session factory -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="annotatedClasses" >
<list>
<value>sk.xorty.dataaccess.Vehicle</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="dialect">org.hibernate.dialect.MySQL5InnoDBDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
</props>
</property>
</bean>
<bean id="hibernateVehicleDao" class="sk.xorty.dataaccess.HibernateVehicleDao" />
</beans>
编辑：要求车辆的实体代码：
@Entity
@Table(name="vehicle")
public class Vehicle implements Serializable {
@Id
@Column(name="VEHICLE_NO", nullable=false, length=10)
private String vehicleNo;
private String color;
private int wheel;
private int seat;
public Vehicle() {}
public Vehicle(String vehicleNo, String color, int wheel, int seat) {
this.vehicleNo = vehicleNo;
this.color = color;
this.wheel = wheel;
this.seat = seat;
}
public String getVehicleNo() {
return vehicleNo;
}
public void setVehicleNo(String vehicleNo) {
this.vehicleNo = vehicleNo;
}
public String getColor() {
return color;
}
public void setColor(String color) {
this.color = color;
}
public int getWheel() {
return wheel;
}
public void setWheel(int wheel) {
this.wheel = wheel;
}
public int getSeat() {
return seat;
}
public void setSeat(int seat) {
this.seat = seat;
}
@Override
public String toString() {
return "Vehicle [vehicleNo=" + vehicleNo + ", color=" + color
+ ", wheel=" + wheel + ", seat=" + seat + "]";
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((color == null) ? 0 : color.hashCode());
result = prime * result + seat;
result = prime * result
+ ((vehicleNo == null) ? 0 : vehicleNo.hashCode());
result = prime * result + wheel;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Vehicle other = (Vehicle) obj;
if (color == null) {
if (other.color != null)
return false;
} else if (!color.equals(other.color))
return false;
if (seat != other.seat)
return false;
if (vehicleNo == null) {
if (other.vehicleNo != null)
return false;
} else if (!vehicleNo.equals(other.vehicleNo))
return false;
if (wheel != other.wheel)
return false;
return true;
}
}
你可以发布车辆实体吗？ – 2011-12-28 17:29:29
@ kmb385当然，请参阅编辑 – Xorty 2011-12-28 17:31:08
你在哪里实例化simpleJdbcTemplate？ – 2011-12-28 17:38:01