Spring整合hibernate4

1:通过maven添加需要的jar包

 1 <dependencies>
 2       <dependency>
 3           <groupId>org.springframework</groupId>
 4           <artifactId>spring-web</artifactId>
 5           <version>3.2.9.RELEASE</version>
 6       </dependency>
 7       
 8       <dependency>
 9           <groupId>org.aspectj</groupId>
10           <artifactId>aspectjrt</artifactId>
11           <version>1.8.1</version>
12       </dependency>
13 
14       <dependency>
15           <groupId>org.aspectj</groupId>
16           <artifactId>aspectjweaver</artifactId>
17           <version>1.8.1</version>
18       </dependency>
19       
20       <dependency>
21           <groupId>mysql</groupId>
22           <artifactId>mysql-connector-java</artifactId>
23           <version>5.1.31</version>
24       </dependency>
25 
26       <dependency>
27           <groupId>org.hibernate</groupId>
28           <artifactId>hibernate-core</artifactId>
29           <version>4.2.0.Final</version>
30       </dependency>
31 
32       <dependency>
33           <groupId>org.apache.openejb</groupId>
34           <artifactId>commons-dbcp-all</artifactId>
35           <version>1.3</version>
36       </dependency>
37 
38       <dependency>
39           <groupId>org.springframework</groupId>
40           <artifactId>spring-orm</artifactId>
41           <version>3.2.9.RELEASE</version>
42       </dependency>
43 </dependencies>

 

2:配置实体类与数据库关联

 1 @Entity
 2 @Table(name="user")
 3 public class User {
 4     @Id
 5     @GenericGenerator(name="native",strategy="native")
 6     @GeneratedValue(generator="native")
 7     private int id;
 8     
 9     @Column(name="username")
10     private String name;
11 }

 

3:dao

 1 public interface UserDao {
 2     public User findUserById(int id);
 3 }
 4 
 5 @Repository
 6 public class UserDaoImpl implements UserDao {
 7     @Autowired
 8     private SessionFactory sessionFactory;
 9     
10     public User findUserById(int id) {
11         Session session = sessionFactory.openSession();
12         Transaction ts = session.beginTransaction();
13         
14         User user = (User)session.get(User.class, id);
15         session.delete(user);
16         
17         ts.commit();
18         session.close();
19         return user;
20     }
21 }

 

4:service

 1 public interface UserService {
 2     public User getUserById(int id);
 3 }
 4 
 5 @Service
 6 public class UserServiceImpl implements UserService {
 7     @Autowired
 8     private UserDao userDao;
 9     
10     public User getUserById(int id) {
11         return userDao.findUserById(id);
12     }
13 }

 

5:测试代码

 1 @Component("client")
 2 public class Client {
 3     @Autowired
 4     private UserService userService;
 5 
 6     public static void main(String[] args) {
 7         ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
 8         
 9         Client st = (Client)ac.getBean("client");
10         UserService userService = st.userService;
11         User user = userService.getUserById(1);
12         
13         System.out.println(user.getName());
14     }
15 }

 

6:配置文件applicationContext.xml

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <beans
 3     xmlns="http://www.springframework.org/schema/beans"
 4     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 5     xmlns:p="http://www.springframework.org/schema/p"
 6     xmlns:context="http://www.springframework.org/schema/context"
 7     xmlns:aop="http://www.springframework.org/schema/aop"
 8     xmlns:tx="http://www.springframework.org/schema/tx"
 9     xmlns:jpa="http://www.springframework.org/schema/data/jpa"
10     xmlns:cache="http://www.springframework.org/schema/cache"
11     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
12                         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
13                         http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
14                         http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd
15                         http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
16                         http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd">
17     
18     <context:component-scan base-package="dao"/>
19     <context:component-scan base-package="service"/>
20     <context:component-scan base-package="test"/>
21     
22     <context:property-placeholder location="classpath:dbcp.properties"/>
23     <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
24         <property name="driverClassName" value="${driverClassName}" />
25         <property name="url" value="${url}" />
26         <property name="username" value="${mysqlusername}" />
27         <property name="password" value="${mysqlpassword}" />
28         <property name="maxActive" value="${maxActive}" />
29         <property name="maxIdle" value="${maxIdle}" />
30         <property name="minIdle" value="${minIdle}" />
31         <property name="maxWait" value="${maxWait}" />
32         <property name="initialSize" value="${initialSize}" />
33         <property name="logAbandoned" value="${logAbandoned}" />
34         <property name="removeAbandoned" value="${removeAbandoned}" />
35         <property name="removeAbandonedTimeout" value="${removeAbandonedTimeout}" />
36         <property name="timeBetweenEvictionRunsMillis" value="${timeBetweenEvictionRunsMillis}" />
37         <property name="numTestsPerEvictionRun" value="${numTestsPerEvictionRun}" />
38     </bean>
39     
40     <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
41         <property name="dataSource" ref="dataSource" />
42         
43         <property name="hibernateProperties">
44             <props>
45                 <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
46                 <prop key="hibernate.show_sql">true</prop>
47             </props>
48         </property>
49         
50         <property name="packagesToScan">
51             <list>
52                 <value>po</value>
53             </list>
54         </property>
55     </bean>
56 </beans>

 

7:数据库连接池配置dbcp.properties

url=jdbc:mysql://localhost:3306/test
driverClassName=com.mysql.jdbc.Driver
mysqlusername=root
mysqlpassword=root
maxActive=8
minIdle=3
maxIdle=8
maxWait=40000
initialSize=2
logAbandoned=true
removeAbandoned=true 
removeAbandonedTimeout=30
timeBetweenEvictionRunsMillis=10000
numTestsPerEvictionRun=8

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Spring整合hibernate4

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