SSH 注解开发

一、分层结构

javabean

通用dao 接口（增删改查的方法  方法权限为默认） 使用反射  

通用daoImpl 一个实现通用dao接口的抽象方法     主要实现 dao接口各方法的具体操作   使用反射  注解@Transactional

service    一个继承通用dao接口的接口类（可以添加扩展功能）

serviceImpl 继承通用daoImpl实现service接口的方法 注解@Service       @Transactional

通用action 继承ActionSupport实现ModelDriven<T>接口     方法权限protected  

注解@Resource  注入所有要使用的service业务接口

action  继承通用action   注解@Controller             @Scope("prototype")

通用action代码 如下

public abstract class BaseAction<T> extends ActionSupport implements ModelDriven<T>{

 ///////////注入所有业务接口/////////

 @Resource

 protected XinZhongSiService xinZhongSiService;

 @Resource

 protected MessageService messageService;

 @Resource

 protected AdminLoginService adminLoginService;

 

 protected T model;

 public BaseAction(){

  try{

   ParameterizedType pt = (ParameterizedType) this.getClass().getGenericSuperclass();

   Class<T> clazz = (Class<T>) pt.getActualTypeArguments()[0];

   model = clazz.newInstance();

  }catch(Exception e){

   throw new RuntimeException(e);

  }

 }

 public T getModel(){

  return model;

 }

}

通用DAO

public interface BaseDao<T> {

 void save(T entity);

 void delete(Integer id);

 void update(T entity);

 T getById(Integer id);

 List<T> getByIds(Integer[] ids);

 List<T> findAll();

}

通用daoImpl

@Transactional

public abstract class BaseDaoImpl<T> implements BaseDao<T> {

 @Resource

 private SessionFactory sessionFactory;

 private Class<T> clazz;

 

 public BaseDaoImpl(){

  ParameterizedType pt = (ParameterizedType) this.getClass().getGenericSuperclass();

  this.clazz =(Class<T>) pt.getActualTypeArguments()[0];

 }

 /*获取当前可用session*/

 protected Session getSession() {

  return sessionFactory.getCurrentSession();

 }

 @Override

 public void save(T entity) {

  getSession().save(entity);

 }

 @Override

 public void delete(Integer id) {

  Object obj = getById(id);

  if(obj!=null){

   getSession().delete(obj);

  }

 

 }

 @Override

 public void update(T entity) {

  getSession().update(entity);

 

 }

 @Override

 public T getById(Integer id) {

  if(id==null){

   return null;

  }else{

   return (T) getSession().get(clazz, id);

  }

 

 }

 @Override

 public List<T> getByIds(Integer[] ids) {

  if(ids==null||ids.length==0){

   return Collections.EMPTY_LIST;

  }else{

   return getSession().createQuery(//

     "FROM"+clazz.getSimpleName()+"WHERE id IN (:ids)")//

     .setParameterList("ids", ids)//

     .list();

   

  }

 

 }

 @Override

 public List<T> findAll() {

  return getSession().createQuery(//

    "FROM " + clazz.getSimpleName() +" m order by m.id desc")//

    .list();

 }

}

applicationContext.xml配置

<?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-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/tx 
       http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
       http://www.springframework.org/schema/aop 
       http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
       <!-- 自动装配 -->
      <!--  <context:component-scan base-package="com.edu.zzuli.oracle.lesson"></context:component-scan> -->

<bean id="dataSource"
class="org.apache.commons.dbcp.BasicDataSource">
<property name="url" value="${jdbc.url}" />
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />

</bean>
<!-- 配置外部数据库连接信息-->
<context:property-placeholder location="classpath:db.properties"/>
 <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />

<property name="hibernateProperties">
<value>
hibernate.hbm2ddl.auto=update
hibernate.show_sql=true
hibernate.format_sql=true
hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
current_session_context_class=thread
javax.persistence.validation.mode=none
</value>
    
     </property> 
    
        <property name="mappingLocations">
<list>
<value>classpath:blog/zzq/orm/*.hbm.xml</value>
</list>
</property>
</bean>
    <bean id="txManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<!--自动扫描  -->
<tx:annotation-driven transaction-manager="txManager"/>
<context:component-scan base-package="blog.zzq"></context:component-scan>
 </beans>

db.properties

jdbc.url=jdbc\:mysql\:///blog?createDatabaseIfNotExist\=true&useUnicode\=true&characterEncoding\=utf8

jdbc.driverClassName=com.mysql.jdbc.Driver

jdbc.username=root

jdbc.password=123456

log4j.properties

### direct log messages to stdout ###

log4j.appender.stdout=org.apache.log4j.ConsoleAppender

log4j.appender.stdout.Target=System.out

log4j.appender.stdout.layout=org.apache.log4j.PatternLayout

log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

### direct messages to file hibernate.log ###

#log4j.appender.file=org.apache.log4j.FileAppender

#log4j.appender.file.File=hibernate.log

#log4j.appender.file.layout=org.apache.log4j.PatternLayout

#log4j.appender.file.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

### set log levels - for more verbose logging change 'info' to 'debug' ###

#

log4j.rootLogger=error, stdout

log4j.logger.com.edu.zzuli.oracle.lesson=debug

#log4j.logger.org.hibernate=info

#log4j.logger.org.hibernate=debug

### log HQL query parser activity

#log4j.logger.org.hibernate.hql.ast.AST=debug

### log just the SQL

#log4j.logger.org.hibernate.SQL=debug

struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>
<constant name="i18n.encoding" value="utf-8"/>
<!-- 配置为开发模式 -->
  <constant name="struts.devMode" value="true"/>
<constant name="struts.locale" value="zh_CN" />
 <constant name="struts.ui.theme" value="simple" />
 <constant name="struts.ognl.allowStaticMethodAccess" value="true" />
  <constant name="struts.multipart.maxSize" value="1048576000"/>
  <constant name="struts.custom.i18n.resources" value="globalMessages" /> 
<package name="test" extends="struts-default" namespace="/">
<action name="XinZhongSi_*" class="blog.zzq.action.view.XinZhongSiAction" method="{1}">
<result name="index">/WEB-INF/jsp/client/XinZhongSi.jsp</result>
</action>

 </package>

 </struts>  

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" 
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_3_0.xsd">
  <display-name></display-name>
  <welcome-file-list>
    <welcome-file>/index.jsp</welcome-file>
  </welcome-file-list>
  <listener>
  <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  
  </listener>
 <context-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>classpath:applicationContext.xml</param-value> 
  </context-param>
    <filter>
<filter-name>OpenSessionInViewFilter</filter-name>
<filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>OpenSessionInViewFilter</filter-name>
<url-pattern>*.action</url-pattern>
</filter-mapping>

<!-- 解决懒加载的问题 -->
  
  <!-- struts2的主要拦截器 -->
  <filter>
  <filter-name>struts2</filter-name>
  <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>
  
  <!-- 清除缓存监听防止内存泄漏 -->
  <listener>
 <listener-class>org.springframework.web.util.IntrospectorCleanupListener
 
 </listener-class> 
  </listener>
  
  <!-- 字符编码过滤器 -->
  <filter>
   <filter-name>encoding</filter-name>
   <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
   <init-param>
     <param-name>encoding</param-name>
     <param-value>UTF-8</param-value>
   </init-param>
   <init-param>
   <param-name>forceEncoding</param-name>
   <param-value>true</param-value>
   </init-param>
  </filter>
 
 
  </web-app>