在Hibernate中出现乱码如何解决

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" 
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>

  <session-factory>
  
    <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
    <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
    <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/db_loginRegis</property>
    <property name="hibernate.connection.username">root</property>
    <property name="hibernate.connection.password">root</property>    
   <property name="connection.useUnicode">true</property>
   <property name="connection.characterEncoding">UTF-8</property>
    <mapping resource="PO/UserInfoPO.hbm.xml"/>
  </session-factory>
</hibernate-configuration>