Maven+Hibernate4注解0配置示例

工程使用Maven来管理依赖，Hibernate版本4.2.0.Final。

工程结构图：

pom.xml文件：

 1 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 2   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 3   <modelVersion>4.0.0</modelVersion>
 4 
 5   <groupId>com.purple_river.itat.maven.demo.user.dao</groupId>
 6   <artifactId>user-dao</artifactId>
 7   <version>0.0.1-SNAPSHOT</version>
 8   <packaging>jar</packaging>
 9 
10   <name>user-dao</name>
11   <url>http://maven.apache.org</url>
12 
13   <properties>
14     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
15   </properties>
16 
17   <dependencies>
18     <dependency>
19       <groupId>junit</groupId>
20       <artifactId>junit</artifactId>
21       <version>4.10</version>
22       <scope>test</scope>
23     </dependency>
24     <dependency>
25         <groupId>org.hibernate</groupId>
26         <artifactId>hibernate-core</artifactId>
27         <version>4.2.0.Final</version>
28     </dependency>
29     <dependency>
30         <groupId>mysql</groupId>
31         <artifactId>mysql-connector-java</artifactId>
32         <version>5.1.27</version>
33     </dependency>
34   </dependencies>
35 </project>

hibernate.cfg.xml文件：

 1 <?xml version="1.0" encoding="UTF-8"?>  
 2 <!DOCTYPE hibernate-configuration PUBLIC  
 3     "-//Hibernate/Hibernate Configuration DTD 3.0//EN"  
 4     "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
 5 <hibernate-configuration>
 6     <session-factory>
 7         <!--显示执行的SQL语句 -->
 8         <property name="show_sql">true</property>
 9         <!-- 格式化输出 -->
10         <property name="format_sql">true</property>
11         <!--连接字符串 -->
12         <property name="connection.url">jdbc:mysql://localhost:3306/test</property>
13         <!--连接数据库的用户名 -->
14         <property name="connection.username">root</property>
15         <!--数据库用户密码 -->
16         <property name="connection.password">soft</property>
17         <!--数据库驱动 -->
18         <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
19         <!--选择使用的方言 -->
20         <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
21         <property name="hibernate.hbm2ddl.auto">update</property>
22         <property name="configurationClass">org.hibernate.cfg.AnnotationConfiguration</property>
23         <mapping class="com.purple_river.itat.maven.demo.bean.user.User" />
24     </session-factory>
25 </hibernate-configuration>

User类：

  1 package com.purple_river.itat.maven.demo.bean.user;
  2 
  3 import java.io.Serializable;
  4 import java.util.Date;
  5 
  6 import javax.persistence.Column;
  7 import javax.persistence.Entity;
  8 import javax.persistence.GeneratedValue;
  9 import javax.persistence.Id;
 10 import javax.persistence.Table;
 11 
 12 import org.hibernate.annotations.GenericGenerator;
 13 
 14 @Entity
 15 @Table(name="user")
 16 public class User implements Serializable
 17 {
 18     private static final long    serialVersionUID    = -2602075959996355784L;
 19     @Id
 20     @GenericGenerator(name="generator",strategy="increment")
 21     @GeneratedValue(generator="generator")
 22     @Column(name="id",nullable=false,unique=true)
 23     private long id;
 24     /**
 25      * @return the id
 26      */
 27     public long getId() {
 28         return id;
 29     }
 30 
 31     /**
 32      * @param id the id to set
 33      */
 34     public void setId(long id) {
 35         this.id = id;
 36     }
 37 
 38     @Column(name="username",nullable=false)
 39     private String username;
 40     @Column(name="age")
 41     private int age;
 42     @Column(name="birthday")
 43     private Date birthday;
 44     
 45     /**
 46      * @return the username
 47      */
 48     public String getUsername() {
 49         return username;
 50     }
 51 
 52     /**
 53      * @param username the username to set
 54      */
 55     public void setUsername(String username) {
 56         this.username = username;
 57     }
 58 
 59     /**
 60      * @return the age
 61      */
 62     public int getAge() {
 63         return age;
 64     }
 65 
 66     /**
 67      * @param age the age to set
 68      */
 69     public void setAge(int age) {
 70         this.age = age;
 71     }
 72 
 73     /**
 74      * @return the birthday
 75      */
 76     public Date getBirthday() {
 77         return birthday;
 78     }
 79 
 80     /**
 81      * @param birthday the birthday to set
 82      */
 83     public void setBirthday(Date birthday) {
 84         this.birthday = birthday;
 85     }
 86 
 87     /**
 88      * 
 89      */
 90     public User() {
 91         super();
 92         // TODO Auto-generated constructor stub
 93     }
 94 
 95     /**
 96      * @param username
 97      * @param age
 98      * @param birthday
 99      */
100     public User(String username, int age, Date birthday) {
101         super();
102         this.username = username;
103         this.age = age;
104         this.birthday = birthday;
105     }
106 
107     /* (non-Javadoc)
108      * @see java.lang.Object#toString()
109      */
110     @Override
111     public String toString() {
112         return "User [username=" + username + ", age=" + age + ", birthday="
113                 + birthday + "]";
114     }
115     
116     
117 }

HibernateUtil类：

 1 /*
 2  * @packageName:com.purple_river.itat.maven.demo.user.dao.util
 3  * @fileName:HibernateUtil.java
 4  * @description:Hibernate操作工具类
 5  * @author:luckystar2010
 6  * @date:2013-11-28
 7  */
 8 package com.purple_river.itat.maven.demo.user.dao.util;
 9 
10 import org.hibernate.SessionFactory;
11 import org.hibernate.cfg.Configuration;
12 import org.hibernate.service.ServiceRegistry;
13 import org.hibernate.service.ServiceRegistryBuilder;
14 
15 public final class HibernateUtil {
16     private static SessionFactory factory = null;
17     
18     public static SessionFactory getSessionFactory() {
19         if (factory == null) {
20             Configuration conf = new Configuration().configure();
21             ServiceRegistry serviceRegistry = new ServiceRegistryBuilder().applySettings(conf.getProperties()).buildServiceRegistry();
22             factory = conf.buildSessionFactory(serviceRegistry);
23         }
24         
25         return factory;
26     }
27     
28     /*public static void main(String[] args) {
29         SessionFactory sf = HibernateUtil.getSessionFactory();
30         System.out.println(sf.toString());
31     }*/
32 }

IUserDao类：

 1 /*
 2  * @packageName:com.purple_river.itat.maven.demo.user.dao
 3  * @fileName:IUserDao.java
 4  * @description:用户管理数据库操作接口
 5  * @author:luckystar2010
 6  * @date:2013-11-28
 7  */
 8 package com.purple_river.itat.maven.demo.user.dao;
 9 
10 import java.util.List;
11 
12 import com.purple_river.itat.maven.demo.bean.user.User;
13 
14 public interface IUserDao {
15 
16     public void addUser(User user);
17     public User getUser(String name);
18     public List<User> getAll();
19 }

UserDao类：

 1 /*
 2  * @packageName:com.purple_river.itat.maven.demo.user.dao
 3  * @fileName:UserDao.java
 4  * @description:用户管理数据库操作接口
 5  * @author:luckystar2010
 6  * @date:2013-11-28
 7  */
 8 package com.purple_river.itat.maven.demo.user.dao;
 9 
10 import java.util.List;
11 
12 import org.hibernate.HibernateException;
13 import org.hibernate.Session;
14 import org.hibernate.SessionFactory;
15 
16 import com.purple_river.itat.maven.demo.bean.user.User;
17 import com.purple_river.itat.maven.demo.user.dao.util.HibernateUtil;
18 
19 public class UserDao implements IUserDao {
20 
21     /* (non-Javadoc)
22      * @see com.purple_river.itat.maven.demo.user.dao.IUserDao#addUser(com.purple_river.itat.maven.demo.bean.user.User)
23      */
24     public void addUser(User user) {
25         if (user == null) {
26             throw new NullPointerException("the entity[user] which to be saved is null!");
27         }
28         
29         Session session = null;
30         try {
31             SessionFactory factory = HibernateUtil.getSessionFactory();
32             session = factory.openSession();
33             session.beginTransaction();
34             session.save(user);
35             session.getTransaction().commit();
36         } catch (HibernateException e) {
37             session.getTransaction().rollback();
38             e.printStackTrace();
39         } finally {
40             if (session != null) {
41                 session.close();
42             }
43         }
44         
45     }
46 
47     /* (non-Javadoc)
48      * @see com.purple_river.itat.maven.demo.user.dao.IUserDao#getUser(java.lang.String)
49      */
50     public User getUser(String name) {
51         User user = null;
52         Session session = null;
53         try {
54             SessionFactory factory = HibernateUtil.getSessionFactory();
55             session = factory.openSession();
56             user = (User) session.createQuery("from User where username = ?").setParameter(0, name).uniqueResult();
57         } catch (HibernateException e) {
58             e.printStackTrace();
59         } finally {
60             if (session != null) {
61                 session.close();
62             }
63         }
64         
65         return user;
66     }
67 
68     /* (non-Javadoc)
69      * @see com.purple_river.itat.maven.demo.user.dao.IUserDao#getAll()
70      */
71     public List<User> getAll() {
72         List<User> list = null;
73         try {
74             list = HibernateUtil.getSessionFactory().openSession().createCriteria(User.class).list();
75         } catch (HibernateException e) {
76             // TODO Auto-generated catch block
77             e.printStackTrace();
78         }
79         return list;
80     }
81 
82 }

TestUserDao类：

 1 /*
 2  * @packageName:com.purple_river.itat.maven.demo.user.dao
 3  * @fileName:TestUserDao.java
 4  * @description:Test Case for UserDao
 5  * @author:luckystar2010
 6  * @date:2013-11-28
 7  */
 8 package com.purple_river.itat.maven.demo.user.dao;
 9 
10 import java.util.Calendar;
11 import java.util.List;
12 
13 import org.jboss.logging.Logger;
14 import org.junit.After;
15 import org.junit.Assert;
16 import org.junit.Before;
17 import org.junit.Test;
18 
19 import com.purple_river.itat.maven.demo.bean.user.User;
20 
21 public class TestUserDao {
22     public final static org.jboss.logging.Logger logger = Logger.getLogger(TestUserDao.class);
23     
24     private IUserDao userDao ;
25     
26     @Before
27     public void setUp() {
28         userDao = new UserDao();
29     }
30     
31     @Test
32     public void testAddUser() {
33         logger.info("Test [UserDao.addUser].");
34         Calendar c = Calendar.getInstance();
35         c.set(2012, 01,01);
36         User user = new User("admin",1,c.getTime());
37         
38         userDao.addUser(user);
39     }
40     
41     @Test
42     public void testGetUser() {
43         logger.info("Test [UserDao.getUser].");
44         
45         User user = userDao.getUser("admin");
46         logger.info(user);
47         Assert.assertEquals(user.getUsername(),"admin");
48         Assert.assertEquals(user.getAge(),1);
49     }
50     
51     @Test
52     public void testGetAll() {
53         logger.info("Test [UserDao.listAll].");
54         
55         List<User> userList = userDao.getAll();
56         Assert.assertTrue(userList.size() == 1);
57         logger.info(userList.get(0));
58     }
59     
60     @After
61     public void tearDown() {
62         userDao = null;
63     }
64 }

之所以记录下来，是因为搭建环境时遇到了一些错误，所以这里记录对以后有个参考。

下载地址：http://files.cnblogs.com/luckystar2010/user-dao.rar

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原文地址：https://www.cnblogs.com/luckystar2010/p/3449184.html

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