雇员管理系统ssh之准备1

1、准备

引入spring包

（1）编写applicationContext.xml

（2）测试spring是否成功

引入Hibernate包

（3）applicationContext.xml配置数据源、配置sessionFactory

(4)配置pojo和pojo.hbm.xml



1、准备

引入spring2.5.6包

dist\spring.jar
dist\modules\spring-webmvc-struts.jar
lib\jakarta-commons\commons-logging.jar、commons-dbcp.jar、commons-pool.jar
lib\aspectj\aspectjweaver.jar、aspectjrt.jar
lib\cglib\cglib-nodep-2.1_3.jar
lib\j2ee\common-annotations.jar
lib\log4j\log4j-1.2.15.jar

（1）编写applicationContext.xml

（2）测试spring是否成功

<?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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/aop http://www.springframew     ork.org/schema/aop/spring-aop-3.0.xsd">
<!-- 启用注解注入 -->
<!-- <context:annotation-config/> -->
<!-- 启用自动扫描 -->
<!--  <context:component-scan base-package="com.journey.testDemo"/> -->

<bean id="peo" class="com.journey.testDemo.People">
<property name="name" value="春天"></property>
</bean>
</beans>

写一个测试包

com.journey.testDemo

public class People {
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}

测试是否打印配置文件里的 春天

public class TestDemo {
private static ApplicationContext ac;
static {
ac = new ClassPathXmlApplicationContext("applicationContext.xml");
}
@Test
public void test1(){
People  p=ac.getBeans("peo",People.class);
System.out.println(p.getName());
}
}

引入Hibernate包

hibernate3.jar
lib\required\*.jar
lib\optional\ehcache-1.2.3.jar
hibernate 注解安装包下的
lib\test\slf4j-log4j12.jar

（3）applicationContext.xml配置数据源、配置sessionFactory

<?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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/aop http://www.springframew     ork.org/schema/aop/spring-aop-3.0.xsd">
<!-- 启用注解注入 -->
<!-- <context:annotation-config/> -->
<!-- 启用自动扫描 -->
<!--  <context:component-scan base-package="com.journey.testDemo"/> -->
<bean id="peo" class="com.journey.testDemo.People">
<property name="name" value="春天"></property>
</bean>

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<prope
4000
rty name="driverClassName" value="oracle.jdbc.driver.OracleDriver"/>
<property name="url" value="jdbc:oracle:thin:@127.0.0.1:1521:orcl"/>
<property name="username" value="scott"/>
<property name="password" value="tiger"/>
<!-- 连接池启动时的初始值 -->
<property name="initialSize" value="3"/>
<!-- 连接池的最大值 -->
<property name="maxActive" value="30"/>
<!-- 最大空闲值.当经过一个高峰时间后，连接池可以慢慢将已经用不到的连接慢慢释放一部分，一直减少到maxIdle为止 -->
<property name="maxIdle" value="2"/>
<!--  最小空闲值.当空闲的连接数少于阀值时，连接池就会预申请去一些连接，以免洪峰来时来不及申请 -->
<property name="minIdle" value="1"/>
</bean>

<!-- ******************************************分割线************************************************** -->
<!-- 配置sessionFactory -->
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<!-- 设置数据源 -->
<property name="dataSource" ref="dataSource"/>
<!-- 接管Hibernate对象映射文件 -->
<property name="mappingResources">
<list>
<value>com/journey/pojo/Employee.hbm.xml</value>
</list>
</property>
<property name="hibernateProperties">
<value>
hibernate.dialect=org.hibernate.dialect.OracleDialect
hibernate.hbm2ddl.auto=update
hibernate.show_sql=false
hibernate.format_sql=false
</value>
</property>
</bean>
</beans>

(4)配置pojo和pojo.hbm.xml

工具包

//获取ApplicationContext
package com.journey.testDemo;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class ApplicationContextUtil {
private static ApplicationContext ac;

private ApplicationContextUtil() {

}

static {
ac = new ClassPathXmlApplicationContext("applicationContext.xml");
}
public static ApplicationContext getApplicationContext(){
return ac;
}
}

//建立pojo 包
package com.journey.pojo;

import java.util.Date;

public class Employee {
private Integer id;
private String name;
private String email;
private Date hiredate;
private Float salary;

public Employee() {
}

public Employee(String name, String email, Date hiredate,
Float salary) {
this.name = name;
this.email = email;
this.hiredate = hiredate;
this.salary = salary;
}

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;
}

}

Employee.hbm.xml配置

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">

<!-- 操作的是哪个包 -->
<hibernate-mapping package="com.journey.pojo">
<class name="Employee" table="employee0516">
<!-- id用与指定主键属性 -->
<id name="id" column="id" type="integer">
<!-- generator用来指定主键生成策略hilo、uuid、increment、sequence、native -->
<generator class="sequence">
<param name="sequence">emp_seq</param>
</generator>
</id>
<property name="name" type="string">
<column name="name" not-null="false" />
</property>
<property name="email"  type="java.lang.String" >
<column name="email" not-null="false" length="64"></column>
</property>
<property name="hiredate" type="java.util.Date">
<column name="hiredate" not-null="false"></column>
</property>
<property name="salary" not-null="false" type="java.lang.Float"/>

</class>

</hibernate-mapping>

测试Hibernate和Spring整合

package com.journey.testDemo;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.junit.Test;
import org.springframework.context.ApplicationContext;

import com.journey.pojo.Employee;

public class TestDemo {
@Test
public void test1(){
ApplicationContext ac=ApplicationContextUtil.getApplicationContext();
SessionFactory s=(SessionFactory) ac.getBean("sessionFactory");
Session session=s.openSession();
Employee e=new Employee("顺平", "2112@qq.com", new java.util.Date(), 500.0f);
Transaction tr=session.beginTransaction();
try {
session.save(e);
tr.commit();
} catch (Exception e2) {
if(tr!=null){
tr.rollback();
}
e2.printStackTrace();
}finally{
if(session!=null&&session.isOpen()){
session.close();
}
}
}
}