二、配置数据源、SessionFactory、domain对象

1.在applicationContext.xml中配置数据源

<?xml version="1.0" encoding="utf-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns:context="http://www.springframework.org/schema/context"
        xmlns:tx="http://www.springframework.org/schema/tx"
        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
                http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd
                http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">

    <!-- 配置数据源 -->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
        <property name="url" value="jdbc:mysql://localhost:3306/ssh?characterEncoding=utf-8"></property>
        <property name="username" value="root"></property>
        <property name="password" value="123456"></property>
        
        <!-- 连接池启动时的初始值 -->
        <property name="initialSize" value="3"></property>
        <!-- 连接池的最大值 -->
        <property name="maxActive" value="500"></property>
        <!-- 最大空闲值，当经过一个高峰时间后，连接池可以慢慢讲已经不用的一些链接慢慢释放一部分，抑制减少到最小空闲值 -->
        <property name="maxIdle" value="2"></property>
        <!-- 最小空闲值 ，当空闲的连接数少于阀值，连接池就会预申请一些连接，以免洪峰来时来不及申请-->
        <property name="minIdle" value="1"></property>    
    </bean>
    
</beans>

2.在applicationContext.xml中配置会话工厂

    <!-- 配置会话工厂 -->
    <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        <!-- 设置数据源 -->
        <property name="dataSource" ref="dataSource"></property>
        <!-- 接管hibernate对象映射文件 -->
        <property name="mappingResources">
            <list>
                <value></value>
            </list>
        </property>
        <property name="hibernateProperties">
            <value>
                hibernate.dialect=org.hibernate.dialect.MySQLDialect
                hibernate.hbm2ddl.auto=update
                hibernate.show_sql=true
                hibernate.format_sql=true
            </value>
        </property>
    </bean>

 3.在src目录下新建包com.myz.domain，搞定domain对象

　　3.1在domain包下新建Employee类

package com.myz.domain;

import java.util.Date;

public class Employee {
    private Integer id;//编号
    private String name;//名字
    private String email;//邮件
    private Date hiredate;//雇用日期
    private Float salary;//工资
    private String password;//密码
    private Integer grade;//等级
    
    public Employee() {
        
    }
    

    public Employee(Integer id, String name, String email, Date hiredate,
            Float salary, String password, Integer grade) {
        super();
        this.id = id;
        this.name = name;
        this.email = email;
        this.hiredate = hiredate;
        this.salary = salary;
        this.setPassword(password);
        this.setGrade(grade);
    }



    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getEmail() {
        return email;
    }
    public void setEmail(String email) {
        this.email = email;
    }
    public Date getHiredate() {
        return hiredate;
    }
    public void setHiredate(Date hiredate) {
        this.hiredate = hiredate;
    }
    public Float getSalary() {
        return salary;
    }
    public void setSalary(Float salary) {
        this.salary = salary;
    }


    public void setGrade(Integer grade) {
        this.grade = grade;
    }


    public Integer getGrade() {
        return grade;
    }


    public void setPassword(String password) {
        this.password = password;
    }


    public String getPassword() {
        return password;
    }
}

　　3.2新建Employee.hbm.xml

<?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 package="com.myz.domain">
    <class name="Employee" table="employee">
        <id name="id" type="java.lang.Integer">
            <generator class="assigned"></generator>
        </id>
        <property name="name" type="java.lang.String">
            <column name="name"></column>
        </property>
        <property name="email" type="java.lang.String">
            <column name="email" length="64"></column>
        </property>
        <property name="hiredate">
            <column name="hiredate"></column>
        </property>
        <property name="salary" type="java.lang.Float">
            <column name="salary"></column>
        </property>
        <property name="password" type="java.lang.String">
            <column name="password"></column>
        </property>
        <property name="grade" type="java.lang.Integer">
            <column name="grade"></column>
        </property>
    </class>
</hibernate-mapping>

　　3.3在applicationContext.xml中，让sessionFactory管理Employee.hbm.xml

<!-- 配置会话工厂 -->
    <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        <!-- 设置数据源 -->
        <property name="dataSource" ref="dataSource"></property>
        <!-- 接管hibernate对象映射文件 -->
        <property name="mappingResources">
            <list>
                <value>com/myz/domain/Employee.hbm.xml</value>
            </list>
        </property>
        <property name="hibernateProperties">
            <value>
                hibernate.dialect=org.hibernate.dialect.MySQLDialect
                hibernate.hbm2ddl.auto=update
                hibernate.show_sql=true
                hibernate.format_sql=true
            </value>
        </property>
    </bean>

4.在com.myz.test中测试如下代码

package com.myz.test;

import java.util.Date;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.myz.domain.Employee;

public class Test {
    public static void main(String[] args) {
        ApplicationContext ac=new ClassPathXmlApplicationContext("applicationContext.xml");
        SessionFactory sf=(SessionFactory) ac.getBean("sessionFactory");
        Session openSession = sf.openSession();
        Employee employee=new Employee(5, "jack", "241@qq.com", new Date(), 3000f,"123456",1);
        
        Transaction ts=openSession.beginTransaction();
        openSession.save(employee);
        ts.commit();
    }
}

发现控制台输出sql语句，并且数据库中增加了表employee，表中有添加的一条数据，测试成功！