（1）生成数据库表的创建：

1             // 默认读取hibernate.cfg.xml文件  2             Configuration cfg = new Configuration().configure();  3               4             // 生成并输出sql到文件（当前目录）和数据库  5             SchemaExport export = new SchemaExport(cfg);  6               7             // 创建表结构，第一个true 表示在控制台打印sql语句，第二个true 表示导入sql语句到数据库8             export.create(true, true);

(2)Hibernate.cfg.xml文件

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        8     
        9     
       10     
       
        11         com.mysql.jdbc.Driver12     
       13     
       
        14         jdbc:mysql:///hibernate15     
       16     
       
        root
       17     
       
        123456
       18     
       19     
       20     
       
        21         org.hibernate.dialect.MySQLDialect22     
       23 24     
       25     
       26     
       
        true
       27     
       28     
       
        true
       29     
       30     
       
        update
       31 32 33     
       34     
       35     
       36     
       37 38 
      39 
     

(3)log4j.properties文件

1 ### direct log messages to stdout ### 2 log4j.appender.stdout=org.apache.log4j.ConsoleAppender 3 log4j.appender.stdout.Target=System.err 4 log4j.appender.stdout.layout=org.apache.log4j.PatternLayout 5 log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n 6  7 ### direct messages to file mylog.log ### 8 log4j.appender.file=org.apache.log4j.FileAppender 9 log4j.appender.file.File=c\:mylog.log10 log4j.appender.file.layout=org.apache.log4j.PatternLayout11 log4j.appender.file.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n12 13 ### set log levels - for more verbose logging change 'info' to 'debug' ###14 15 log4j.rootLogger=off, stdout

（4）User.java

1 package cn.lonecloud.domain; 2  3 import java.io.Serializable; 4 import java.lang.reflect.Field; 5 import java.lang.reflect.Method; 6 import java.util.Date; 7  8 public class User implements Serializable,Cloneable { 9    10       private String id;11       private String name;12       private String password;13       private Date birthday;14       public User(){15           System.out.println("user");16       }17     public String getId() {18         return id;19     }20     public void setId(String id) {21         this.id = id;22     }23     public String getName() {24         return name;25     }26     public void setName(String name) {27         this.name = name;28     }29     public String getPassword() {30         return password;31         32     }33     public void setPassword(String password) {34         this.password = password;35     }36     public Date getBirthday() {37         return birthday;38     }39     public void setBirthday(Date birthday) {40         this.birthday = birthday;41     }42     @Override43     public  Object clone() throws CloneNotSupportedException {44          Class clazz = User.class;45          User user =null;46          try {47              user = (User)clazz.newInstance();48              /*user.setBirthday(this.birthday);49              user.setId(this.id);50              user.setPassword(this.password);51              user.setName(this.name);*/52              Field[] declaredFields = clazz.getDeclaredFields();53              for(Field field :declaredFields){54                   Class
      parameterTypes = field.getType();55                   String fieldName = field.getName();56                   String methodName = "set"+fieldName.substring(0,1).toUpperCase()+field.getName().substring(1);57                   Method method = clazz.getDeclaredMethod(methodName, parameterTypes);58                   field.setAccessible(true);59                   method.invoke(user,field.get(this));60              }61              return user;62         } catch (Exception e) {63             e.printStackTrace();64         } 65          return null;66     }67       68       69 }

(5).user.hbm.xml

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 6.Customer.java

1 package cn.lonecloud.domain; 2  3 import java.io.Serializable; 4 import java.util.HashSet; 5 import java.util.Set; 6  7 public class Customer implements Serializable { 8  9     private String id;10 11     private String customerName;12     13     private Set
      
        orders = new HashSet
       
        ();14 15     public String getId() {16         return id;17     }18 19     public void setId(String id) {20         this.id = id;21     }22 23     public String getCustomerName() {24         return customerName;25     }26 27     public void setCustomerName(String customerName) {28         this.customerName = customerName;29     }30 31     public Set
        
          getOrders() {32         return orders;33     }34 35     public void setOrders(Set
         
           orders) {36         this.orders = orders;37     }38 39     40 }
         
        
       
      

7.Customer.hbm.xml

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8.Order.java

1 package cn.lonecloud.domain; 2  3 import java.io.Serializable; 4  5 public class Order  implements Serializable{ 6   7      private String id; 8       9      private String orderNumber;10      11      private float price;12      13      private Customer customer;14      15 16     public Customer getCustomer() {17         return customer;18     }19 20     public void setCustomer(Customer customer) {21         this.customer = customer;22     }23 24     public String getId() {25         return id;26     }27 28     public void setId(String id) {29         this.id = id;30     }31 32     public String getOrderNumber() {33         return orderNumber;34     }35 36     public void setOrderNumber(String orderNumber) {37         this.orderNumber = orderNumber;38     }39 40     public float getPrice() {41         return price;42     }43 44     public void setPrice(float price) {45         this.price = price;46     }47      48      49      50      51      52 }

9.Order.hbm.xml

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