Create and export Hibernate database objects

The relationship between Hibernate and the database is the ORM relationship, and the object is mapped to the database.

So how do I perform ddl and dml operations on various objects in the database through objects?

Database object operation <database-object.../> + SchemaExport

1. hibernate. cfg. xml

 
 
 
 
  
   
........
  
 

 
 
  
Create
 
 
 
  
True
 
 
 
  
True
 
 
 

2. lovejk. hbm. xml

 
 
 
 
  
  
   
   
    
Create table testjk (name varchar (256 ));
   
   
   
   
   
   
  
 

3. Execution

Public static void main (String [] args) throws Exception {// instantiate Configuration. This line of code loads hibernate by default. cfg. xml file Configuration conf = new Configuration (). configure (); // create SessionFactorySessionFactory sf = conf with Configuration. buildSessionFactory (); // create the SchemaExport object SchemaExport se = new SchemaExport (conf); /// set the SQL script se with good output format. setFormat (true); // you can specify the SQL script file name se. setOutputFile ("d: \ 1. SQL"); // output the SQL script and execute the SQL script se. create (true, true); sf. close ();}

Summary: simple and rude!