spring系列(九):SSH整合四_采用泛型方式

环境：jdk1.7    spring3.2.2    struts2.3.15   hibernate3.3.2  druid1.0.9.jar

上一篇我们讲解了ssh的整合。这一篇继续深入ssh的整合之采用泛型方式。采用泛型能使用我们节省大量代码。

下面来看工程的建立及相关代码

导入包

目录结构

============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">    <error-page>  <error-code>404</error-code>  <location>/Err404.html</location>  </error-page>  <error-page>  <error-code>500</error-code>  <location>/Err500.html</location>  </error-page>    <!-- 解决延迟加载的问题start -->  <filter>  <filter-name>OpenSessionInView</filter-name>  <filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>  </filter>  <filter-mapping>  <filter-name>OpenSessionInView</filter-name>  <url-pattern>*.php</url-pattern>  </filter-mapping>  <!-- 解决延迟加载的问题end -->    <!--struts2 config start  -->  <filter>  <filter-name>struts2</filter-name>  <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>  <init-param>  <param-name>config</param-name>  <param-value>struts-default.xml,struts-plugin.xml,configs/struts.xml</param-value>  </init-param>  </filter>  <filter-mapping>  <filter-name>struts2</filter-name>  <url-pattern>/*</url-pattern>  </filter-mapping>  <!--struts2 config end  -->      <!-- druid pool -->  <filter>     <filter-name>DruidWebStatFilter</filter-name>     <filter-class>com.alibaba.druid.support.http.WebStatFilter</filter-class>     <init-param>         <param-name>exclusions</param-name>         <param-value>*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*</param-value>     </init-param>  </filter>  <filter-mapping>     <filter-name>DruidWebStatFilter</filter-name>     <url-pattern>/*</url-pattern>  </filter-mapping>  <servlet>        <servlet-name>DruidStatView</servlet-name>        <servlet-class>com.alibaba.druid.support.http.StatViewServlet</servlet-class>  </servlet>  <servlet-mapping>        <servlet-name>DruidStatView</servlet-name>        <url-pattern>/druid/*</url-pattern>  </servlet-mapping>  <!--http://localhost:8080/SSHFinal/druid/index.html  -->        <!--spring config start -->  <context-param>  <param-name>contextConfigLocation</param-name>  <param-value>classpath:configs/context.xml</param-value>  </context-param>  <listener>  <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  </listener>  <!-- spring config end -->    <!-- 加载日志start -->  <context-param>  <param-name>log4jConfigLocation</param-name>  <param-value>classpath:configs/log4j.properties</param-value>  </context-param>  <listener>  <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>  </listener>  <!-- 加载日志end -->    <welcome-file-list>    <welcome-file>Login.jsp</welcome-file>  </welcome-file-list></web-app>

================druid连接池配置druid.properties==================

driverClassName=com.mysql.jdbc.Driverurl=jdbc:mysql://localhost:3306/studentdbusername=rootpassword=sasa#配置监控统计拦截的filters，去掉后监控界面sql无法统计filters=stat#配置初始化大小 initialSize=6#配置初始化最大连接数 maxActive=20#配置初始化最小连接数 minIdle=3#配置获取连接等待超时的时间,1分钟 maxWait=60000#检测连接是否有效的SQL validationQuery=SELECT 'x'#空闲的连接是否进行有效性检查testWhileIdle=true#申请连接时执行validationQuery检测连接是否有效，做了这个配置会降低性能 testOnBorrow=false#归还连接时执行validationQuery检测连接是否有效，做了这个配置会降低性能 testOnReturn=false#启用PSCache，必须配置大于0，当大于0时，poolPreparedStatements自动触发修改为true maxPoolPreparedStatementPerConnectionSize=20#对于长时间不使用的连接强制关闭 removeAbandoned=true#超过60秒的空闲连接就可以被关闭了,单位是秒 removeAbandonedTimeout=60#配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 timeBetweenEvictionRunsMillis=10000#配置一个连接在池中最小生存的时间，单位是毫秒 minEvictableIdleTimeMillis=30000

===============hibernate核心配置文件hibernate.cfg.xml========================

<!DOCTYPE hibernate-configuration PUBLIC"-//Hibernate/Hibernate Configuration DTD 3.0//EN""http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"><hibernate-configuration><session-factory><property name="dialect">org.hibernate.dialect.MySQLDialect</property><property name="show_sql">true</property><property name="format_sql">true</property><property name="current_session_context_class">thread</property><property name="hibernate.cache.provider_class">org.hibernate.cache.EhCacheProvider</property><property name="cache.provider_configuration_file_resource_path">     configs/ehcache.xml</property><property name="hibernate.cache.use_second_level_cache">true</property><property name="hibernate.cache.use_query_cache">true</property></session-factory></hibernate-configuration>

===============spring核心配置文件context.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: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/aop                    http://www.springframework.org/schema/aop/spring-aop-3.0.xsd                    http://www.springframework.org/schema/tx                    http://www.springframework.org/schema/tx/spring-tx-3.0.xsd"><!-- 导入其它sping配置文件 --><import resource="classpath:configs/spring/context-*.xml"/><!-- durid连接池配置start --><bean id="duridConfig" class="org.springframework.beans.factory.config.PreferencesPlaceholderConfigurer"><property name="locations">    <list><value>classpath:configs/druid.properties</value></list></property>    </bean>    <bean id="druidDataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close"><property name="driverClassName" value="${driverClassName}" /><property name="url" value="${url}" /><property name="username" value="${username}" /><property name="password" value="${password}" /><property name="filters" value="${filters}" /><property name="initialSize" value="${initialSize}" /><property name="maxActive" value="${maxActive}" /><property name="minIdle" value="${minIdle}" /><property name="maxWait" value="${maxWait}" /><property name="validationQuery" value="${validationQuery}" /><property name="testWhileIdle" value="${testWhileIdle}" /><property name="testOnBorrow" value="${testOnBorrow}" /><property name="testOnReturn" value="${testOnReturn}" /><property name="maxPoolPreparedStatementPerConnectionSize" value="${maxPoolPreparedStatementPerConnectionSize}" /><property name="removeAbandoned" value="${removeAbandoned}" /><property name="removeAbandonedTimeout" value="${removeAbandonedTimeout}" /><property name="timeBetweenEvictionRunsMillis" value="${timeBetweenEvictionRunsMillis}" /><property name="minEvictableIdleTimeMillis" value="${minEvictableIdleTimeMillis}" /></bean>    <!-- durid连接池配置end -->    <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"><property name="dataSource" ref="druidDataSource"></property><property name="configLocation"><value>classpath:configs/hibernate.cfg.xml</value></property><property name="mappingLocations"><list><value>classpath:configs/mappers/*.hbm.xml</value></list></property></bean><!-- 事务配置start --><bean id="txManger" class="org.springframework.orm.hibernate3.HibernateTransactionManager"><property name="sessionFactory" ref="sessionFactory"></property></bean><tx:advice id="txAdvise" transaction-manager="txManger"><tx:attributes><tx:method name="find*" read-only="true"/><tx:method name="search*" read-only="true"/><tx:method name="load*" read-only="true"/><tx:method name="query*" read-only="true"/><tx:method name="get*" read-only="true"/><tx:method name="add*" propagation="REQUIRED"/><tx:method name="save*" propagation="REQUIRED"/><tx:method name="modify*" propagation="REQUIRED"/><tx:method name="update*" propagation="REQUIRED"/><tx:method name="del*" propagation="REQUIRED"/><tx:method name="do*" propagation="REQUIRED"/></tx:attributes></tx:advice><aop:config><aop:pointcut id="mycut" expression="execution(* com.obtk.biz.*.*(..))"/><aop:advisor advice-ref="txAdvise" pointcut-ref="mycut"/></aop:config><!-- 事务配置end --></beans>

==============dao层配置context-dao.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: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/aop                    http://www.springframework.org/schema/aop/spring-aop-3.0.xsd                    http://www.springframework.org/schema/tx                    http://www.springframework.org/schema/tx/spring-tx-3.0.xsd"><!-- 根据名称自动装配 --><bean id="userDao" class="com.obtk.dao.user.UserDaoImpl" autowire="byName"></bean><!-- 根据类型自动装配 --><bean id="stuDao" class="com.obtk.dao.stu.StudentDaoImpl" autowire="byType"></bean><!-- 不进行自动装配 --><bean id="acctDao" class="com.obtk.dao.acct.AcctDaoImpl"><property name="sessionFactory" ref="sessionFactory"></property></bean></beans>

====================struts核心配置文件struts.xml=====================

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE struts PUBLIC"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN""struts-2.3.dtd"><struts>    <constant name="struts.action.extension" value="php"></constant>    <constant name="struts.multipart.saveDir" value="C:\tmp"></constant>    <!-- 最大只能传1m上来 -->    <constant name="struts.multipart.maxSize" value="1048576"></constant>    <!-- 导入其它struts配置 --><include file="configs/struts/struts-*.xml"></include></struts>

==============用户模块的struts配置struts-user.xml======================

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE struts PUBLIC"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN""struts-2.3.dtd"><struts>    <package name="user" extends="struts-default"><action name="Login" class="com.obtk.actions.user.LoginAction"><result name="success">index.jsp</result><result name="input">Login.jsp</result></action><action name="CheckUser" class="com.obtk.actions.user.CheckUserAction"><result name="success" type="stream"><param name="contentType">text/html</param><param name="inputName">bis</param></result></action><action name="Register" class="com.obtk.actions.user.RegisterAction"><result name="success">Login.jsp</result><result name="input">Register.jsp</result></action><action name="ShowWeather" class="com.obtk.actions.user.WeatherAction"><result name="success">ShowWeather.jsp</result></action></package></struts>

===============关键代码GernericDao====================

package com.obtk.dao;import java.io.Serializable;import java.util.List;public interface GernericDao<T> {T getById(Class<T> entityCla,Object id);List<T> getAll(T t);Serializable save(T t);void deleteById(Class<T> entityCla,Object id);void update(T t);}

==============GernericDaoImpl====================

package com.obtk.dao;import java.io.Serializable;import java.util.List;import org.springframework.orm.hibernate3.support.HibernateDaoSupport;public class GernericDaoImpl<T> extends HibernateDaoSupport implements GernericDao<T> {public void deleteById(Class<T> entityCla,Object id) {this.getHibernateTemplate().delete(this.getById(entityCla,id));}public List<T> getAll(T t) {return (List<T>)this.getHibernateTemplate().loadAll(t.getClass());}public T getById(Class<T> entityCla,Object id) {T t1=null;if(id instanceof String){t1=(T)this.getHibernateTemplate().load(entityCla, (String)id);}else if(id instanceof Integer){t1=(T)this.getHibernateTemplate().load(entityCla, (Integer)id);}else if(id instanceof Long){t1=(T)this.getHibernateTemplate().load(entityCla, (Long)id);}else{throw new RuntimeException("id类型错误");}return t1;}public Serializable save(T t) {return this.getHibernateTemplate().save(t);}public void update(T t) {this.getHibernateTemplate().update(t);}}

===============IUserDao================

package com.obtk.dao.user;import com.obtk.dao.GernericDao;import com.obtk.entitys.UserEntity;;public interface IUserDao<UserEntity> extends GernericDao<UserEntity> {boolean isLogin(String userName,String passWord);}

=====================UserDaoImpl==================

package com.obtk.dao.user;import java.util.List;import org.springframework.orm.hibernate3.HibernateTemplate;import com.obtk.dao.GernericDaoImpl;import com.obtk.entitys.UserEntity;;public class UserDaoImpl extends GernericDaoImpl<UserEntity> implements IUserDao<UserEntity> {public boolean isLogin(String userName, String passWord) {boolean flag = false;HibernateTemplate hiberUtil = this.getHibernateTemplate();Object[] params = new Object[] { userName, passWord };hiberUtil.setCacheQueries(true);List<UserEntity> userList = hiberUtil.find("from Users where userName=? and passWord=?", params);if (userList.size() == 1) {flag = true;}return flag;}}