log4j:WARN No appenders could be found for logger (org.hibernate.cfg.annotations

log4j:WARN No appenders could be found for logger (org.hibernate.cfg.annotations.Version).
log4j:WARN Please initialize the log4j system properly.

自学hibernate，看的是尚学堂，马士兵的hibernate3.3.2的视频，在构建log4j这个日志时候由于出现了问题后，我重头一步一步的按照马老师的步骤进行，下了和老师一样的架包，不过我用的是eclipse 3.5的，mysql 6.0 。



1.
hibernate.cfg.xml：
<?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>

<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost/hibernate</property>
<property name="connection.username">root</property>
<property name="connection.password">364200</property>

<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">1</property>

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

<mapping class="com.geolo.hibernate.model.Teacher"/>
</session-factory>
</hibernate-configuration>


2.
teacher.java

package com.geolo.hibernate.model;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;

@Entity
public class Teacher {
private int id;

private String name;
private String title;

@Id
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}

@Column
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}

@Column
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
}




3.
teachertest.java

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.cfg.Configuration;

import com.geolo.hibernate.model.Student;
import com.geolo.hibernate.model.Teacher;


public class TeacherTest {
public static void main(String[] args){
Teacher t = new Teacher();
t.setId(111);

t.setName("huhu");
t.setTitle("p");

Configuration cfg = new AnnotationConfiguration();

SessionFactory sf = cfg.configure().buildSessionFactory();
Session session = sf.openSession();
session.beginTransaction();
session.save(t);
session.getTransaction().commit();
session.close();
sf.close();
}
}