OA系统开始的一些通用模块

1 web.xml配置

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
 xmlns="http://java.sun.com/xml/ns/javaee"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
 http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
 
 <!-- 通过上下文参数指定spring配置文件的位置 -->
 <context-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>classpath:beans.xml</param-value>
 </context-param>
 
 <!-- 配置spring的上下文载入器监听器 ,项目启动时加载spring -->
 <listener>
  <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
 </listener>
 
 <!-- 配置struts2的前端控制器 -->
 <filter>
  <filter-name>struts</filter-name>
  <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
 </filter>
 <filter-mapping>
  <filter-name>struts</filter-name>
  <url-pattern>/*</url-pattern>
 </filter-mapping>
 
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

2 struts.xml设置

<?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>     <constant name="struts.devMode" value="true" />     <!-- 将对象工厂指定为spring -->     <constant name="struts.objectFactory" value="spring"/>     <!-- struts的Action访问后缀 -->     <constant name="struts.action.extension" value="do"/>

    <package name="default" namespace="/" extends="struts-default">      <action name="bookAction" class="bookAction"></action>     </package> </struts>

3beans

<?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">
      
 <!-- 读取属性文件 -->
 <context:property-placeholder location="classpath:jdbc.properties"/>
 
 <!-- 数据源 -->
 <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
  <property name="driverClass" value="${driverClass}"></property>
  <property name="jdbcUrl" value="${jdbcUrl}"></property>
  <property name="user" value="${user}"></property>
  <property name="password" value="${password}"></property>
  <property name="initialPoolSize" value="${initialPoolSize}"></property>
  <property name="minPoolSize" value="${minPoolSize}"></property>
  <property name="maxPoolSize" value="${maxPoolSize}"></property>
 </bean>
 
 <!-- 本地会话工厂bean -->
 <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
  <property name="dataSource" ref="dataSource"/>
  <!-- 注入hibernate属性 -->
  <property name="hibernateProperties">
   <props>
    <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</prop>
    <prop key="hibernate.hbm2ddl.auto">update</prop>
    <prop key="hibernate.show_sql">true</prop>
    <prop key="hibernate.format_sql">true</prop>
   </props>
  </property>
  <!-- hibernate映射文件的位置 -->
  <property name="mappingDirectoryLocations">
   <list>
    <value>classpath:cn/itcast/oa/domain</value>
   </list>
  </property>
 </bean>
 
 <!-- Hibernate事务管理器 -->
 <bean id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
  <property name="sessionFactory" ref="sessionFactory"/>
 </bean>
 
 <!-- 对注解提供支持 -->
 <context:annotation-config/>
 <!-- 组件扫描 -->
 <context:component-scan base-package="cn.itcast.oa"/>
 
 <!-- 注解驱动 -->
 <tx:annotation-driven transaction-manager="txManager"/>
 
</beans>

4 action 层

package cn.itcast.oa.action;

import org.springframework.context.annotation.Scope; import org.springframework.stereotype.Controller;

import com.opensymphony.xwork2.ActionContext; import com.opensymphony.xwork2.util.ValueStack;

import cn.itcast.oa.base.BaseAction; import cn.itcast.oa.domain.Book;

@Controller @Scope("prototype")

public class BookAction extends BaseAction<Book>{  public String execute() throws Exception{   

System.out.println(model);     
 bookService.save(model);  

 return NONE;  } }

// @Scope("prototype"): 每次请求都创建一个实例

 

5  action层继承了BaseAction<Book>

 看下 BaseAction<Book>

public class BaseAction<T> extends ActionSupport implements ModelDriven<T>{    @Resource  protected IBookService bookService;    //在构造方法中获得model类型  public BaseAction(){   ParameterizedType type = (ParameterizedType) this.getClass().getGenericSuperclass();//父类Action类型   Type[] types = type.getActualTypeArguments();   Class<T> clazz = (Class<T>) types[0];   try {    model = clazz.newInstance();   } catch (InstantiationException e) {    e.printStackTrace();   } catch (IllegalAccessException e) {    e.printStackTrace();   }  }    protected T model;

 public T getModel() {   return model;  } }

6 servic层

package cn.itcast.oa.service;

import java.util.List;

import cn.itcast.oa.domain.Book;

public interface IBookService {

 /**   * 添加   */  public void save(Book book);    /**   * 根据id删除   */  public void delete(Long id);    /**   * 根据id修改   */  public void update(Book book);    /**   * 根据id查询   */  public Book getById(Long id);    /**   * 一次查询多个对象   */  public List<Book> getByIds(Long[] ids);    /**   * 查询所有   */  public List<Book> findAll();

}

7service Impl层

package cn.itcast.oa.service.impl;

import java.util.List;

import javax.annotation.Resource;

import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional;

import cn.itcast.oa.dao.IBookDao; import cn.itcast.oa.domain.Book; import cn.itcast.oa.service.IBookService; @Service @Transactional public class BookServiceImpl implements IBookService {    @Resource  private IBookDao bookDao;  public void delete(Long id) {   // TODO Auto-generated method stub   bookDao.delete(id);  }

   public List<Book> findAll() {   // TODO Auto-generated method stub   return bookDao.findAll();  }

   public Book getById(Long id) {   // TODO Auto-generated method stub   return bookDao.getById(id);  }

   public List<Book> getByIds(Long[] ids) {   // TODO Auto-generated method stub   return bookDao.getByIds(ids);  }

   public void save(Book book) {   // TODO Auto-generated method stub   bookDao.save(book);  }

   public void update(Book book) {   // TODO Auto-generated method stub   bookDao.update(book);  }

}

8dao 层

package cn.itcast.oa.base;

import java.util.List;

/**  * 通用Dao接口  * @author zhaoqx  *  */ public interface IBaseDao<T> {  /**   * 添加   */  public void save(T entity);    /**   * 根据id删除   */  public void delete(Long id);    /**   * 根据id修改   */  public void update(T entity);    /**   * 根据id查询   */  public T getById(Long id);    /**   * 一次查询多个对象   */  public List<T> getByIds(Long[] ids);    /**   * 查询所有   */  public List<T> findAll(); }

9dao层实现层

package cn.itcast.oa.base;

import java.lang.reflect.ParameterizedType; import java.lang.reflect.Type; import java.util.List;

import javax.annotation.Resource;

import org.hibernate.Query; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.springframework.orm.hibernate3.HibernateTemplate;

import cn.itcast.oa.domain.Book; /**  * 通用Dao实现  * @author zhaoqx  *  * @param <T>  */ @SuppressWarnings("unchecked") public class BaseDaoImpl<T> implements IBaseDao<T> {  @Resource  private SessionFactory sessionFactory;    private Class<T> clazz;    public BaseDaoImpl() {   //获得实体类型   ParameterizedType genericSuperclass = (ParameterizedType) this.getClass().getGenericSuperclass();//获得真正的父类   Type[] types = genericSuperclass.getActualTypeArguments();   clazz = (Class<T>) types[0];  }    public void save(T entity) {   getSession().save(entity);  }    public void delete(Long id) {   getSession().delete(getSession().get(clazz, id));  }    public void update(T entity) {   getSession().update(entity);  }

 public List<T> findAll() {   String hql = "FROM " + clazz.getSimpleName();   return getSession().createQuery(hql).list();  }

 public T getById(Long id) {   return (T) getSession().get(clazz, id);  }    public List<T> getByIds(Long[] ids) {   String hql = "FROM " + clazz.getSimpleName() + " WHERE id in (:ids)";   Query query = getSession().createQuery(hql);   query.setParameterList("ids", ids);//一次赋值多个   return query.list();  }    public Session getSession(){   return sessionFactory.getCurrentSession();  } }

10 book dao

public interface IBookDao extends IBaseDao<Book> {
 
}

11 book dao impl

package cn.itcast.oa.dao.impl;

import org.springframework.stereotype.Repository;

import cn.itcast.oa.base.BaseDaoImpl; import cn.itcast.oa.dao.IBookDao; import cn.itcast.oa.domain.Book; /**  * BookDao锛岀户鎵緽aseDaoImpl  * @author zhaoqx  *  */ @Repository public class BookDaoImpl extends BaseDaoImpl<Book> implements IBookDao {

}

12

package cn.itcast.oa.domain;

public class Book {  private Long id;  private String name;  public Long getId() {   return id;  }  public void setId(Long id) {   this.id = id;  }  public String getName() {   return name;  }  public void setName(String name) {   this.name = name;  }  @Override  public String toString() {   return "Book [id=" + id + ", name=" + name + "]";  }   }

13

<?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="cn.itcast.oa.domain.Book" table="itcast_book">
  <id name="id">
   <generator class="native"/>
  </id>
  <property name="name" length="32"/>
 </class>
</hibernate-mapping>

14 test

package cn.itcast.test;

import java.util.List;

import org.junit.Test; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext;

import cn.itcast.oa.domain.Book; import cn.itcast.oa.service.IBookService;

/**  * 测试basedao  * @author zhaoqx  *  */ public class TestBaseDao {    /**   * 测试findAll操作   */  @Test  public void test6(){   //初始化spring   ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml");   IBookService bookService = (IBookService) ctx.getBean("bookServiceImpl");      List<Book> list = bookService.findAll();   for(Book book : list){    System.out.println(book);   }  }    /**   * 测试getByIds操作   */  @Test  public void test5(){   //初始化spring   ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml");   IBookService bookService = (IBookService) ctx.getBean("bookServiceImpl");      Long[] ids = new Long[]{2L,3L,4L};   List<Book> list = bookService.getByIds(ids);   for(Book book : list){    System.out.println(book);   }  }    /**   * 测试getById操作   */  @Test  public void test4(){   //初始化spring   ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml");   IBookService bookService = (IBookService) ctx.getBean("bookServiceImpl");      Book book = bookService.getById(2L);   System.out.println(book);  }    /**   * 测试update操作   */  @Test  public void test3(){   //初始化spring   ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml");   IBookService bookService = (IBookService) ctx.getBean("bookServiceImpl");      Book book = new Book();   book.setId(2L);   book.setName("php");      bookService.update(book);  }    /**   * 测试delete操作   */  @Test  public void test2(){   //初始化spring   ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml");   IBookService bookService = (IBookService) ctx.getBean("bookServiceImpl");      bookService.delete(1L);  }    /**   * 测试save操作   */  @Test  public void test1(){   //初始化spring   ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml");   IBookService bookService = (IBookService) ctx.getBean("bookServiceImpl");      Book book = new Book();   book.setName("c");      bookService.save(book);  } }\