SSH整合(spingmvc,spring,hibernate)以及Dao层抽取方法

拯救地球已经很累了,我不想再说废话.

pom文件,详见该分类下pom坐标

springmvc

    <beans xmlns="http://www.springframework.org/schema/beans"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"    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/mvc         http://www.springframework.org/schema/mvc/spring-mvc-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.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 ">    <description>Spring MVC Configuration</description>    <!-- 加载国际化配置文件 -->    <context:property-placeholder location="classpath:ssh.properties" />    <!-- springmvc配置 -->    <!-- 扫描controller -->    <context:component-scan base-package="com.my.controller" />    <!--避免IE执行AJAX时，返回JSON出现下载文件 -->    <bean id="mappingJacksonHttpMessageConverter"        class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">        <property name="supportedMediaTypes">            <list>                <value>text/html;charset=UTF-8</value>            </list>        </property>    </bean>    <!-- 启动SpringMVC的注解功能，完成请求和注解POJO的映射 -->    <!-- <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">         <property name="messageConverters"> <list> <ref bean="mappingJacksonHttpMessageConverter"         /> JSON转换器 </list> </property> </bean> -->    <!-- springmvc jsp视图解析器 -->    <bean id="viewResolver"        class="org.springframework.web.servlet.view.InternalResourceViewResolver">        <!-- 以viewNames和order来搭配,从来进行多视图的配置 -->        <property name="viewNames">            <list>                <value>*jsp</value>            </list>        </property>        <property name="prefix" value="${jsp.prefix}" />        <property name="suffix" value="${jsp.suffix}" />        <property name="order" value="0" />    </bean>    <!-- springmvc配置器映射器 -->    <mvc:annotation-driven />    <!-- multipart解析器 -->    <bean id="multipartResolver"        class="org.springframework.web.multipart.commons.CommonsMultipartResolver">        <property name="maxUploadSize" value="100000000000" />    </bean></beans>

spring-context.xml

<beans xmlns="http://www.springframework.org/schema/beans"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"    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/mvc         http://www.springframework.org/schema/mvc/spring-mvc-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.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 ">    <description>Spring Configuration</description>    <!-- 加载配置属性文件 -->    <context:property-placeholder location="classpath:ssh.properties" />    <!-- 使用Annotation自动注册Bean，解决事物失效问题：在主容器中不扫描@Controller注解，在SpringMvc中只扫描@Controller注解。 -->    <context:component-scan base-package="com.my"><!-- base-package             如果多个，用“,”分隔 -->        <context:exclude-filter type="annotation"            expression="org.springframework.stereotype.Controller" />    </context:component-scan>    <!-- 数据源 -->    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">        <property name="driverClassName" value="${oracle.driver}" />        <property name="url" value="${oracle.constr}" />        <property name="username" value="${oracle.name}" />        <property name="password" value="${oracle.password}" />    </bean>    <!-- <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">         <property name="driverClass" value="${oracle.driver}"/> <property name="jdbcUrl"         value="${oracle.constr}"/> <property name="user" value="${oracle.name}"/>         <property name="password" value="${oracle.password}"/> </bean> -->    <!-- 配置本地会话工厂bean -->    <bean id="sessionFactory"        class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">        <property name="dataSource" ref="dataSource" />        <!-- 注入hibernate相关属性 -->        <property name="hibernateProperties">            <props>                <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>                <prop key="hibernate.hbm2ddl.auto">update</prop>                <prop key="hibernate.show_sql">true</prop>                <prop key="hibernate.format_sql">true</prop>                <prop key="javax.persistence.validation.mode">none</prop>                <prop key="hibernate.dbcp.ps.maxActive">100 </prop>                <prop key="hibernate.dbcp.ps.whenExhaustedAction">1 </prop>                <prop key="hibernate.dbcp.ps.maxWait">1200 </prop>                <prop key="hibernate.dbcp.ps.maxIdle">10 </prop>            </props>        </property>        <!-- 注入hbm映射文件 -->        <property name="mappingDirectoryLocations">            <list>                <value>classpath:/com/my/bean</value>            </list>        </property>    </bean>    <!-- 事务管理器 -->    <bean id="transactionManager"        class="org.springframework.orm.hibernate3.HibernateTransactionManager">        <property name="sessionFactory" ref="sessionFactory" />    </bean>    <!-- 支持事务注解 -->    <tx:annotation-driven transaction-manager="transactionManager" /></beans>

web.xml

<?xml version="1.0" encoding="UTF-8"?><web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns="http://xmlns.jcp.org/xml/ns/javaee"    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee     http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"    id="WebApp_ID" version="3.1">    <display-name>Archetype Created Web Application</display-name>    <!-- spring配置文件 -->    <context-param>        <param-name>contextConfigLocation</param-name>        <param-value>classpath*:spring-context*.xml</param-value>    </context-param>    <!-- spring监听器 -->    <listener>        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>    </listener>    <!-- sessoin过滤器 -->    <filter>        <filter-name>openSessionInViewFilter</filter-name>        <filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>    </filter>    <filter-mapping>        <filter-name>openSessionInViewFilter</filter-name>        <url-pattern>/</url-pattern>    </filter-mapping>    <!-- spring字符过滤器 -->    <filter>        <filter-name>encodingFilter</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>    <filter-mapping>        <filter-name>encodingFilter</filter-name>        <url-pattern>/*</url-pattern>    </filter-mapping>    <!-- springmvc的servlet -->    <servlet>        <servlet-name>springmvc</servlet-name>        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>        <init-param>            <param-name>contextConfigLocation</param-name>            <param-value>classpath*:/spring-mvc.xml</param-value>        </init-param>        <load-on-startup>1</load-on-startup>    </servlet>    <servlet-mapping>        <servlet-name>springmvc</servlet-name>        <url-pattern>/</url-pattern>    </servlet-mapping>    <session-config>        <session-timeout>15</session-timeout>    </session-config></web-app>

Dao层抽取

package com.my.dao;import java.io.Serializable;import java.util.List;import org.hibernate.criterion.DetachedCriteria;public interface BaseDao<T> {    /**     * 增     */    public void save(T entity);    /**     * 改     */    public void update(T entity);    /**     * 删     */    public void delete(T entity);    /**     * 查     */    public T find(Serializable id);    /**     * 查询所有     */    public List<T> findAll();    /**     * 离线条件查询     */    public List<T> findByConditions(DetachedCriteria criteria);     /**     * 命名空间查询     */    public List<T> findByNamedQuery(String queryName, Object...objs);    /**     * 命名空间修改     */    public void executeNamedQuery(String queryName, Object...ojbs);}

package com.my.dao;import java.io.Serializable;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.SessionFactory;import org.hibernate.classic.Session;import org.hibernate.criterion.DetachedCriteria;//spring提供的简化持久层操作的类import org.springframework.orm.hibernate3.support.HibernateDaoSupport;public class BaseDaoImpl<T> extends HibernateDaoSupport implements BaseDao<T> {    /**     * 父类需要注入sessionFacotry注解     * @param sessionFactory     */    @Resource    public void setSF(SessionFactory sessionFactory) {        super.setSessionFactory(sessionFactory);    }    private Class<T> beanClass;    public BaseDaoImpl() {        ParameterizedType parameterizedType = (ParameterizedType) this.getClass().getGenericSuperclass();        Type[] types = parameterizedType.getActualTypeArguments();        beanClass = (Class<T>) types[0];    }    public void save(T entity) {        this.getHibernateTemplate().save(entity);    }    public void update(T entity) {        this.getHibernateTemplate().update(entity);    }    public void delete(T entity) {        this.getHibernateTemplate().delete(entity);    }    public T find(Serializable id) {        return this.getHibernateTemplate().get(beanClass, id);    }    public List<T> findAll() {        String hql = "FROM " +beanClass.getSimpleName();        return (List<T>) this.getHibernateTemplate().find(hql);    }    public List<T> findByConditions(DetachedCriteria criteria) {        return (List<T>) this.getHibernateTemplate().findByCriteria(criteria);    }    public List<T> findByNamedQuery(String queryName, Object... objs) {        return (List<T>) this.getHibernateTemplate().findByNamedQuery(queryName, objs);    }    public void executeNamedQuery(String queryName, Object... objs) {        Session session = this.getSessionFactory().openSession();        Query query = session.getNamedQuery(queryName);        if (objs != null && objs.length > 0) {            int i = 0;            for (Object object : objs) {                query.setParameter(i++, object);            }        }        query.executeUpdate();    }}

package com.my.dao;import com.my.bean.User;public interface UserDao extends BaseDao<User>{}

package com.my.dao;import org.springframework.stereotype.Repository;import com.my.bean.User;@Repositorypublic class UserDaoImpl extends BaseDaoImpl<User> implements UserDao{}