t1

package com.tudou.entity; public class Classes { private int id; private String classesname; private String teacher; private String createDate; public Classes() { super(); } public Classes(String classesname, String teacher, String createDate) { super(); this.classesname = classesname; this.teacher = teacher; this.createDate = createDate; } public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getClassesname() { return classesname; } public void setClassesname(String classesname) { this.classesname = classesname; } public String getTeacher() { return teacher; } public void setTeacher(String teacher) { this.teacher = teacher; } public String getCreateDate() { return createDate; } public void setCreateDate(String createDate) { this.createDate = createDate; } }
<?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <hibernate-mapping> <class name="com.tudou.entity.Classes" table="classes"> <id name="id" column="classes_id" type="java.lang.Integer"> <generator class="native" /> </id> <property name="classesname" column="classesname" type="java.lang.String" length="20" /> <property name="teacher" column="teacher" type="java.lang.String" length="20"></property> <property name="createDate" column="createDate" type="java.lang.String" length="100"></property> </class> </hibernate-mapping>

<?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"> <!-- Generated by MyEclipse Hibernate Tools. --> <hibernate-configuration> <session-factory> <property name="connection.driver_class"> com.mysql.jdbc.Driver </property> <property name="connection.url"> jdbc:mysql://localhost/School </property> <property name="connection.username">root</property> <property name="connection.password">root</property> <property name="dialect"> org.hibernate.dialect.MySQLDialect </property> <property name="hbm2ddl.auto"> update</property> <property name="show_sql">true</property> <mapping resource="com/tudou/entity/Classes.hbm.xml" /> </session-factory> </hibernate-configuration>

package com.tudou.entity; import java.text.SimpleDateFormat; import java.util.Date; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.Transaction; import org.hibernate.cfg.Configuration; public class Test { public static void main(String[] args) { Configuration cfg = new Configuration().configure(); SessionFactory fac = cfg.buildSessionFactory(); Session son = fac.openSession(); Transaction tr = son.beginTransaction(); Classes c = new Classes("G3T05", "老周", new SimpleDateFormat( "yyyy年MM月dd日 hh:mm:ss").format(new Date()).toString()); son.save(c); // Classes c = (Classes) son.get(Classes.class, new Integer(1)); // c.setClassesname("G3t05"); // son.update(c); System.out.println(c.getTeacher()); System.out.println(c.getClassesname()); tr.commit(); son.close(); } }