SSH实例(4)

Clas.hbm.xml文件如下：

<?xml version="1.0" encoding="utf-8"?><!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.school.entity.Clas" table="clas">        <id name="id" type="java.lang.Integer">            <column name="ID" PRecision="22" scale="0" />            <generator class="identity" />        </id>        <property name="name" type="java.lang.String">            <column name="NAME"  length="50" not-null="true">                <comment>课程名称</comment>            </column>        </property>        <property name="comment" type="java.lang.String">            <column name="COMMENT" length="500" not-null="false">                <comment>课程介绍</comment>            </column>        </property>    </class></hibernate-mapping>

Clas.java文件如下：

package com.school.entity;public class Clas {        // 课程id    private int id;    // 课程名称    private String name;    // 课程介绍    private String comment;        // 默认构造方法    public Clas() {    }        // 包含全部属性的构造方法    public Clas(int id, String name, String comment) {        super();        this.id = id;        this.name = name;        this.comment = comment;    }        public int getId() {        return id;    }    public void setId(int id) {        this.id = id;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public String getComment() {        return comment;    }    public void setComment(String comment) {        this.comment = comment;    }}