How to automatically initialize a database at Project deployment __ Database

Today, there is a need to insert a data into the database when the project is started.
First: Inherit Spring's Beanpostprocessor class with the following code

public class Beanpostprcessorimpl implements Beanpostprocessor {
private icompanyservice companyservice;
Public Icompanyservice Getcompanyservice () {return
   companyservice;
}

public void Setcompanyservice (Icompanyservice companyservice) {
   this.companyservice = Companyservice;
}

Processing public
Object Postprocessbeforeinitialization (Object bean, String beanname) before the Bean is instantiated
    throws beansexception {
   System.out.println ("Object" + Beanname + "start instantiation");
   return bean;

Processing public
Object Postprocessafterinitialization (Object bean, String beanname) after the Bean is instantiated
    throws beansexception {
   System.out.println ("Object" + Beanname + "instantiation complete");
   list<user> list = Companyservice.findall ("from User");
   if (list.size () <= 0) {
    User user = new user ();
    User.setname ("Ahhffl");
    User.setpassword ("Ahhffl");
    Companyservice.addobject (user);
   }
   return bean;
}
}

But the method of this class is invoked when each bean is initialized, and I just want to insert a single piece of data, so it's not efficient.

Reference: Http://blog.csdn.net/chensugang/archive/2008/12/01/3423650.aspx Second: Remember that you can use spring's init-method this way, he can again bean Initializes a specified method after instantiating the
But this method must have no parameters, no return value. The code is as follows:

public void Init () throws Exception { 
        System.out.println ("JavaBean class Init method"); 
        list<user> list = Basicdao.findall ("from User");
   if (list.size () <= 0) {
    User user = new user ();
    User.setname ("Ahhffl");
    User.setpassword ("Ahhffl");
    Basicdao.saveuser (user);
    System.out.println (User.getname ());
    System.out.println (User.getpassword ());
    System.out.println (User.getid ());
   } 
    

However, this hibernate transaction is always uncommitted, so the result is that the console has a print SQL statement when it is started, but the transaction is not committed and the database cannot see the data. Set (<property name= "Connection.autocommit" >true </property>)
Can be successful, but setting up autocommit is not good for spring management hibernate.

Third: Inherit spring's Applicationlistener this interface. Initializes the data for the database with the spring listener interface, as follows:

public class Applicationlistenerimpl implements Applicationlistener {
private icompanyservice companyservice;
    Public Icompanyservice Getcompanyservice () {return
   companyservice;
}

public void Setcompanyservice (Icompanyservice companyservice) {
   this.companyservice = Companyservice;
}

@Override public
void Onapplicationevent (Applicationevent arg0) {
   list<user> List = Companyservice.findall ("from User");
   if (list.size () <= 0) {
    User user = new user ();
    User.setname ("Ahhffl");
    User.setpassword ("Ahhffl");
    Companyservice.addobject (user);}}

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