如何在maven web项目中引导初始化hibernate？

Question

如何做bootstrap初始化maven web项目中的hibernate？

public class HibernateTest { 
    public static void main(String [] args) { 
     UserData us1 = new UserData(); 
     us1.setfName("amit"); 
     return "hello"; 
    } 
} 

它不能通过上面的代码来完成，其中UserData是一个实体。在pomm.xml对Hibernate

Answer 1

首先要声明的依赖性：

<dependency> 
      <groupId>org.hibernate</groupId> 
      <artifactId>hibernate-core</artifactId> 
      <version>5.2.2.Final</version> 
     </dependency> 

下创建配置文件hibernate.cfg.xml：

<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE hibernate-configuration PUBLIC 
"-//Hibernate/Hibernate Configuration DTD 3.0//EN" 
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"> 
<hibernate-configuration> 
    <session-factory> 
     <!-- Database connection settings --> 
     <property name="connection.driver_class">com.mysql.jdbc.Driver</property> 
     <property name="connection.url">jdbc:mysql://localhost/UserDB</property> 
     <property name="connection.username">root</property> 
     <property name="connection.password"></property> 

     <property name="connection.pool_size">10</property> 

     <!-- SQL dialect --> 
     <property name="dialect">org.hibernate.dialect.MySQL5Dialect</property> 

     <!-- Enable Hibernate's automatic session context management --> 
     <property name="current_session_context_class">thread</property> 

     <!-- Disable the second-level cache --> 
     <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property> 

     <!-- Echo all executed SQL to stdout --> 
     <property name="show_sql">true</property> 
     <property name="format_sql">true</property> 

     <!-- Drop and re-create the database schema on startup --> 
     <property name="hbm2ddl.auto">create</property> 

     <!-- <property name="FOREIGN_KEY_CHECKS">0</property> --> 

     <!-- Mapping files --> 
     <mapping class="com.stackoverflow.model.Person" /> 
     <mapping class="com.stackoverflow.model.Phone" /> 

    </session-factory> 
</hibernate-configuration> 

如果您有实体，你应该把它们的标签<mapping class="pathToEntity">。

接下来在主要方法：

在这里，您创建Sessionfactory并获取当前Session对象能够查询数据库。