SSH的整合

SSH框架的整合

方式一 带有Hibernate配置文件

1. 导入Jar包
   2.引入配置文件

• Struts2
  • web.xml

<!-- Struts2 核心过滤器-->
      <filter>
        <filter-name>struts2</filter-name>
        <!-- 核心过滤器的全路径 -->
        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
      </filter>
      
      <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
      </filter-mapping>

struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
    "http://struts.apache.org/dtds/struts-2.3.dtd">
    
<struts>
    

</struts>

Hibernate

• 核心配置文件 Hibernate.cfg.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
    "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
    "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
    
<hibernate-configuration>
    
    <session-factory>
        <!-- 必须配置 -->
        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="hibernate.connection.url">jdbc:mysql:///SSH_01?useUnicode=true&amp;characterEncoding=utf8</property>
        <property name="hibernate.connection.username">root</property>
        <property name="hibernate.connection.password">123456</property>
        <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
        
        <!-- 可选配置 -->
        <property name="hibernate.show_sql">true</property>
        <property name="hibernate.format_sql">true</property>
        <property name="hibernate.hbm2ddl.auto">update</property>
        
        
    </session-factory>
    
</hibernate-configuration>

Spring

• web.xml

<!-- 配置Spring框架整合WEB的监听器 -->
      <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
      </listener>
     <!-- 默认只能加载WEB——INF目录下的配置文件，提供配置方式，加载Src目录下 -->
     <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value> 
     </context-param>

applicationContext.xml

<?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:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context.xsd
    http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop.xsd
    http://www.springframework.org/schema/tx 
    http://www.springframework.org/schema/tx/spring-tx.xsd">
    
    
    
</beans>

工程结构

image.png

Struts2和Spring的整合

方式一 Action由Struts自己创建

编写一个CustomerAction继承ActionSupport用于页面的访问

public class CustomerAction extends ActionSupport {

    private static final long serialVersionUID = 1L;

    /*
     * 保存客户
     */
    public String save() {
        
        return NONE;
    }
    
}

在struts.xml配置action

<!-- 先配置包结构 -->
    <package name="Customer" extends="struts-default" namespace="/">
            <action name="customer_*" class="com.coderhong.web.action.CustomerAction" method="{1}"></action> </action> 
            
    </package>

在表单访问路径
action="${pageContext.request.contextPath }/customer_save.action"
那么Action配置完成 下面开始编写业务层跟Dao层
写在的项目结构：

image.png

业务层

public class CustomerServiceImpl implements CustomerService {

    public void save(Customer customer) {
        
        System.out.println("业务层：保存客户");
    }

}

dao层

public class ServiceDaoImple implements ServiceDao {

    @Override
    public void save(Customer customer) {
        System.out.println("dao层：保存客户");
    }
}

同时也编写了一个Customer的javaBean，用来Struts封装数据
用CustomerAction使用模型驱动的方式封装数据

image.png

让业务层跟dao层类交给Spring管理，配置

<!-- 配置业务层 -->
    <bean id="customerService" class="com.coderhong.service.CustomerServiceImpl">
        <!-- 注入dao -->
        <property name="customerDao" ref="customerDao"></property>
    </bean>
    
    <!-- 配置业持久层 -->
    <bean id="customerDao" class="com.coderhong.dao.ServiceDaoImple"></bean>

同时让CustomerService拥有持久层属性

public class CustomerServiceImpl implements CustomerService {
    // 注入持久层
    private CustomerDao customerDao;
    public void setCustomerDao(CustomerDao customerDao) {
        this.customerDao = customerDao;
    }

    public void save(Customer customer) {
        
        System.out.println("业务层：保存客户");
        customerDao.save(customer);
    }
}

在Action中调用业务层的类

    /*
     * 保存客户
     */
    public String save() {
        
        // 在Action中调用业务层类
        WebApplicationContext webApplicationContext = WebApplicationContextUtils.getWebApplicationContext(ServletActionContext.getServletContext());
        CustomerService cs = (CustomerService) webApplicationContext.getBean("customerService");
        cs.save(customer);
        return NONE;
    }

这里可以看出Action调用业务类很麻烦，因为需要在每一个Action中每个方法上获取工厂，通过工厂获取业务类。

为了简化这一代码引入一个插件的包 struts2-spring-plugin-2.3-24.jar
这个插件主要是开启了一个常量
<constant name="struts.objetcFactory" value="spring"/>
那么就可以在Action中注入业务类属性了。

public class CustomerAction extends ActionSupport implements ModelDriven<Customer>{

    private static final long serialVersionUID = 1L;
    // 模型驱动方式 封装数据
    private Customer customer = new Customer();
    public void setCustomer(Customer customer) {
        this.customer = customer;
    }
    
    // 实现ModelDriven接口的抽象方法
    public Customer getModel() {
        return customer;
    }
    
    // 注入业务类
    private CustomerService customerService;
    public void setCustomerService(CustomerService customerService) {
        this.customerService = customerService;
    }

    /*
     * 保存客户
     */
    public String save() {
        
        customerService.save(customer);
        
        return NONE;
    }
}

注意：测试的acton还是由Struts2管理

方式二 Action类由Spring创建(推荐)

引入struts2-spring-plugin-2.3-24.jar

在applicationContext.xml 配置Action

<!-- 配置Action -->
    <bean id="customerAction" class="com.coderhong.web.action.CustomerAction">
        <!-- 必须手动注入业务类 -->
        <property name="customerService" ref="customerService"></property>
    </bean>

Hibernate和Spring的整合

带Hibernate配置文件的方式
创建Customer的映射文件 Customer.hbm.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC 
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
    
<hibernate-mapping>
    
    <class name="com.coderhong.domain.Customer" table="cst_customer">
        <id name="cust_id" column="cust_id">
            <generator class="native"/>
        </id>
        
        <property name="cust_name" column="cust_name"/>
        <property name="cust_user_id" column="cust_user_id"/>
        <property name="cust_create_id" column="cust_create_id"/>
        <property name="cust_source" column="cust_source"/>
        <property name="cust_industry" column="cust_industry"/>
        <property name="cust_level" column="cust_level"/>
        <property name="cust_linkman" column="cust_linkman"/>
        <property name="cust_phone" column="cust_phone"/>
        <property name="cust_mobile" column="cust_mobile"/>
        
    </class>
    
</hibernate-mapping>  

在核心配置文件引入Customer的映射文件

<hibernate-configuration>
    
    <session-factory>
        <!-- 必须配置 -->
        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="hibernate.connection.url">jdbc:mysql:///SSH_01?useUnicode=true&amp;characterEncoding=utf8</property>
        <property name="hibernate.connection.username">root</property>
        <property name="hibernate.connection.password">123456</property>
        <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
        
        <!-- 可选配置 -->
        <property name="hibernate.show_sql">true</property>
        <property name="hibernate.format_sql">true</property>
        <property name="hibernate.hbm2ddl.auto">update</property>
        
        <!-- 配置C3P0的连接池 -->
        <property name="connection.provider_class">org.hibernate.connection.C3P0ConnectionProvider</property>

        <!-- 映射配置文件 -->
        <mapping resource="com/coderhong/domain/Customer.hbm.xml"/>
        
    </session-factory>
    
</hibernate-configuration>  

在Spring中配置如下设置

<!-- 编写bean 名称都是固定的 加载hibernate.cfg.xml -->
    <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
        <property name="configLocation" value="classpath:hibernate.cfg.xml"></property>
    </bean>

这里用的Hibernate 改写Dao,继承HibernateDaoSupport

public class CustomerDaoImple extends HibernateDaoSupport implements CustomerDao {

    @Override
    public void save(Customer customer) {
        System.err.println("持久层：保存客户");
    }
}

配置Dao

<!-- 配置业持久层 -->
    <bean id="customerDao" class="com.coderhong.dao.CustomerDaoImple">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>

调用模板中的方法：

public class CustomerDaoImple extends HibernateDaoSupport implements CustomerDao {

    @Override
    public void save(Customer customer) {
        // 保存
        this.getHibernateTemplate().save(customer);
    }

}

这个时候保存数据，会报错。需要添加了事物才可以保存数据。

配置事务

<!-- 配置平台事物管理器 -->
    <bean id="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>

<!--开启事物的注解  -->
    <tx:annotation-driven transaction-manager="transactionManager"/>

在CustomerServiceImpl类添加注解：

public class CustomerServiceImpl implements CustomerService {
    // 注入持久层
    private CustomerDao customerDao;
    public void setCustomerDao(CustomerDao customerDao) {
        this.customerDao = customerDao;
    }

    public void save(Customer customer) {
        
        System.out.println("业务层：保存客户");
        customerDao.save(customer);
    }

}

再次运行就可以保存数据了。

不带Hibernate配置文件的方式
修改Spring配置文件，将之前Hibernate.cfg.xml内容整合进去。

<?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:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context.xsd
    http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop.xsd
    http://www.springframework.org/schema/tx 
    http://www.springframework.org/schema/tx/spring-tx.xsd">
    
    <!-- 配置c3p0连接池 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/SSH_01?useUnicode=true&amp;characterEncoding=utf8"></property>
        <property name="user" value="root"></property>
        <property name="password" value="123456"></property>
    </bean> 
    
    <!-- 编写bean 名称都是固定的 加载hibernate.cfg.xml -->
    <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
        <!-- <property name="configLocation" value="classpath:hibernate.cfg.xml"></property> -->
        <!-- 不适用 hibernate.cfg.xml方式-->
        <!-- 先加载连接池 -->
        <property name="dataSource" ref="dataSource"></property>
        <!-- 加载方言 -->
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.format_sql">true</prop>
                <prop key="hibernate.hbm2ddl.auto">update</prop>
            </props>
        </property>
        
        <!-- 引入映射文件 -->
        <property name="mappingResources">
            <list>
                <value>com/coderhong/domain/Customer.hbm.xml</value>
            </list>
        </property>
    </bean>
    
    <!-- 配置平台事物管理器 -->
    <bean id="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
    
    <!--开启事物的注解  -->
    <tx:annotation-driven transaction-manager="transactionManager"/>
    
    <!-- 配置业务层 -->
    <bean id="customerService" class="com.coderhong.service.CustomerServiceImpl">
        <!-- 注入dao -->
        <property name="customerDao" ref="customerDao"></property>
    </bean>
    
    <!-- 配置业持久层 -->
    <bean id="customerDao" class="com.coderhong.dao.CustomerDaoImple">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
    
    <!-- 配置Action -->
    <bean id="customerAction" class="com.coderhong.web.action.CustomerAction" scope="prototype">
        <!-- 必须手动注入业务类 -->
        <property name="customerService" ref="customerService"></property>
    </bean>
</beans>

*HibernateTemplate的数据操作

/*
 * 持久层保存客户
 */
public class CustomerDaoImpl extends HibernateDaoSupport implements CustomerDao {
    
     
//  public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {
//      this.hibernateTemplate = hibernateTemplate;
//  }

    @Override
    public void save(Customer customer) {
        System.out.println("持久层：保存客户...");
        // 使用Spring提供的JDBC模板类
        
        this.getHibernateTemplate().save(customer);
    }

    @Override
    public void update(Customer customer) {
        this.getHibernateTemplate().update(customer);
        
        
    }
    
    /*
     * 通过主键查询
     */
    @Override
    public Customer getById(long cust_id) {
        Customer customer = this.getHibernateTemplate().get(Customer.class, cust_id);
        return customer;
    }
    
    // 查询所有
    @Override
    public List<Customer> findAll() {
        List<Customer> list = (List<Customer>) this.getHibernateTemplate().find("from Customer");
        return list;
    }

    @Override
    public List<Customer> findAllByQBC() {
        
        // 离线条件查询
        DetachedCriteria criteria = DetachedCriteria.forClass(Customer.class);
        List<Customer> list = (List<Customer>)this.getHibernateTemplate().findByCriteria(criteria);
        return list;
    }

}