JSF1.2+JPA2.0+Spring3.1整合开发

导入必须的Jar包

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JSF1.2的依赖包

${jsf_home}\mojarra-1.2_15-b01-FCS\lib
jsf-api.jar
jsf-impl.jar
额外
jstl.jar

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JPA用Hibenrate3.6.0实现的依赖包

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${hibernate_home}\hibernate-distribution-3.6.0.Final\hibernate3.jar
${hibernate_home}\hibernate-distribution-3.6.0.Final\lib\required\*
${hibernate_home}\hibernate-distribution-3.6.0.Final\lib\jpa\*
${hibernate_home}\hibernate-distribution-3.6.0.Final\lib\optional\c3p0\* (加入C3P0)
${hibernate_home}\hibernate-distribution-3.6.0.Final\lib\optional\ehcache\* (加入缓存)

slf4j-nop-1.6.1.jar(可选)
backport-util-concurrent.jar (缓存依赖包)

Spring3.1.0的依赖包

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${spring_home}\spring-framework-3.1.0.RELEASE\dist\
org.springframework.aop-3.1.0.RELEASE.jar
org.springframework.asm-3.1.0.RELEASE.jar
org.springframework.aspects-3.1.0.RELEASE.jar
org.springframework.beans-3.1.0.RELEASE.jar
org.springframework.context-3.1.0.RELEASE.jar
org.springframework.core-3.1.0.RELEASE.jar
org.springframework.expression-3.1.0.RELEASE.jar
org.springframework.jdbc-3.1.0.RELEASE.jar
org.springframework.orm-3.1.0.RELEASE.jar
org.springframework.test-3.1.0.RELEASE.jar
org.springframework.transaction-3.1.0.RELEASE.jar
org.springframework.web-3.1.0.RELEASE.jar

com.springsource.org.apache.commons.logging-1.1.1.jar
com.springsource.org.junit-4.7.0.jar
com.springsource.org.aopalliance-1.0.0.jar
com.springsource.org.aspectj.weaver-1.6.8.RELEASE.jar

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MySQL驱动
mysql-connector-java-5.1.7-bin.jar

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因为开发很简单，就是CRUD...

所以能省略的就尽量省略了。。。

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package org.monday.app.domain;import java.util.Date;import javax.persistence.Column;import javax.persistence.Entity;import javax.persistence.GeneratedValue;import javax.persistence.GenerationType;import javax.persistence.Id;import javax.persistence.Table;import javax.persistence.Temporal;import javax.persistence.TemporalType;@Entity@Table(name = "user_table")public class User {@Id@GeneratedValue(strategy = GenerationType.IDENTITY)private Integer id;@Column(name = "name")private String name;@Column(name = "phone")private String phone;@Temporal(TemporalType.DATE)@Column(name = "birthday")private Date birthday;//......}

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3. Dao实现类

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package org.monday.app.dao.impl;import java.util.List;import javax.persistence.EntityManager;import javax.persistence.PersistenceContext;import javax.persistence.Query;import org.monday.app.dao.UserDao;import org.monday.app.domain.User;import org.springframework.stereotype.Repository;@Repository(value = "userDao")public class UserDaoImpl implements UserDao {/** * Spring3.1推荐使用原生的EntityManager  * 而JpaDaoSupport和JpaTemplate被标记为过时 */@PersistenceContext(unitName = "jpa")private EntityManager entityManager;@Overridepublic void save(User user) {entityManager.persist(user);}@Overridepublic void update(User user) {entityManager.merge(user);}@Overridepublic void delete(Integer id) {entityManager.remove(findById(id));}@Overridepublic User findById(Integer id) {return entityManager.find(User.class, id);}@SuppressWarnings("unchecked")@Overridepublic List<User> findAll() {Query query = entityManager.createQuery("from User");// 转换为HibernateQuery// if (query instanceof org.hibernate.ejb.QueryImpl) {// ((org.hibernate.ejb.QueryImpl) query).getHibernateQuery().setCacheable(true);// }return query.getResultList();}}

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3.Service实现类

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就到对Dao的简单调用

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现在，除了Web层组件，其他的组件都准比完毕。接下来，整合JPA+Spring

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在“源文件”的目录下建立一个META-INF文件夹，里面建立一个persistence.xml文件。这个就不解释了。

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<?xml version="1.0" encoding="UTF-8"?><persistence version="1.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"><!-- Spring整合JPA只要指定持久化单元的名称就可以了 --><persistence-unit name="jpa"/></persistence>

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下面，编写Spring的配置文件.beans.xml 这个是重点

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<?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:context="http://www.springframework.org/schema/context"xmlns:tx="http://www.springframework.org/schema/tx"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd"><!-- 引入注解扫描器 --><context:annotation-config /><!-- 引入属性文件 --><context:property-placeholder location="classpath:jdbc.properties"/><!-- 配置要扫描的包 --><context:component-scan base-package="org.monday.app.dao.impl"/> <context:component-scan base-package="org.monday.app.service.impl"/> <!-- 配置数据源 --><bean id="dataSource" destroy-method="close"><property name="driverClass" value="${jdbc.driverClass}"/><property name="jdbcUrl" value="${jdbc.jdbcUrl}"/><property name="user" value="${jdbc.user}"/><property name="password" value="${jdbc.password}"/><property name="maxPoolSize" value="${c3p0.maxPoolSize}"/><property name="minPoolSize" value="${c3p0.minPoolSize}"/><property name="initialPoolSize" value="${c3p0.initialPoolSize}"/><property name="maxIdleTime" value="${c3p0.maxIdleTime}"/></bean></property></bean><!-- 配置EntityManagerFactory --><bean id="entityManagerFactory" ref="dataSource"/><property name="persistenceUnitName" value="jpa" /><property name="jpaVendorAdapter"><bean value="MYSQL" /> <property name="databasePlatform" value="org.hibernate.dialect.MySQL5Dialect" /><property name="generateDdl" value="true" /><property name="showSql" value="true" /></bean></property><property name="jpaProperties"><props><prop key="hibernate.dialect">${hibernate.dialect}</prop><prop key="hibernate.show_sql">${hibernate.show_sql}</prop><prop key="hibernate.format_sql">${hibernate.format_sql}</prop><prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop><!-- 配置二级缓存 --><prop key="hibernate.cache.use_second_level_cache">true</prop><prop key="hibernate.cache.provider_class">org.hibernate.cache.EhCacheProvider</prop></props></property><!-- 配置要扫描的实体类 --><property name="packagesToScan"><list><value>classpath*:org.monday.app.domain.*</value></list></property></bean><!-- 配置事务 --><bean id="txManager" ref="entityManagerFactory"/></bean><tx:annotation-driven transaction-manager="txManager"/></beans>

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自此，JPA+Spring 整合完毕。

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?下面也是重点JSF+Spring 整合

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配置web.xml

<?xml version="1.0" encoding="UTF-8"?><web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"><!-- 指定Spring的配置文件 --><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:beans.xml</param-value></context-param><!-- 注册Spring的WEB监听器 --><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><!-- JSF+Spring整合必须的 --><listener><listener-class>org.springframework.web.context.request.RequestContextListener</listener-class></listener><!-- 配置JSF --><context-param><param-name>javax.faces.STATE_SAVING_METHOD</param-name><param-value>client</param-value></context-param><context-param><param-name>com.sun.faces.validateXml</param-name><param-value>true</param-value></context-param><servlet><servlet-name>jsf</servlet-name><servlet-class>javax.faces.webapp.FacesServlet</servlet-class><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>jsf</servlet-name><!-- <url-pattern>/faces/*</url-pattern> --><url-pattern>*.faces</url-pattern></servlet-mapping><welcome-file-list><welcome-file>index.jsp</welcome-file></welcome-file-list></web-app>

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这样JSF+Spring就配置好了。

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但是，还有一个问题，JSF的托管bean（类似于Struts的Action）怎么取得Service组件。

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首先，在代码中取得Service组件是这样的。

package org.monday.app.web.action;import java.util.List;import javax.faces.context.ExternalContext;import javax.faces.context.FacesContext;import org.monday.app.domain.User;import org.monday.app.service.UserService;public class ListAction {private List<User> list;private UserService userService;/** 注入Service，不要使用注解注入 */public void setUserService(UserService userService) {this.userService = userService;}/** 列表 */public List<User> getList() {list = userService.getAll();return list;}public void setList(List<User> list) {this.list = list;}/** 删除 */public void delete() throws Exception {// 取得id参数ExternalContext ctx = FacesContext.getCurrentInstance().getExternalContext();Integer id = Integer.parseInt(ctx.getRequestParameterMap().get("id"));userService.delete(id);}}

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但是，这样还不够，因为，JSF还不知道Sprig容器管理的Service组件。

所以，还要在JSF的配置文件faces-config.xml中，做点“手脚”。

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<?xml version="1.0" encoding="UTF-8"?><faces-config 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/javaeehttp://java.sun.com/xml/ns/javaee/web-facesconfig_1_2.xsd" version="1.2"><!-- 整合JSF+Spring --><application><el-resolver>org.springframework.web.jsf.el.SpringBeanFacesELResolver</el-resolver></application><!-- 配置托管Bean --><managed-bean><managed-bean-name>listBean</managed-bean-name><managed-bean-class>org.monday.app.web.action.ListAction</managed-bean-class><managed-bean-scope>request</managed-bean-scope><!-- 注入Service --><managed-property><property-name>userService</property-name><value>#{userService}</value></managed-property></managed-bean><!-- 配置导航规则 --></faces-config>

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?使用的是setter的设值注入。

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?这样就将Service组件注入到托管Bean中了。

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终于其他的...可以参考附件

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===============================注意===============================

JpaDaoSupport在Spring3.1中过时

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@deprecated as of Spring 3.1, in favor of native EntityManager usage
(typically obtained through <code>@PersistenceContext</code>)

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JpaTemplate在Spring3.1中过时

@deprecated as of Spring 3.1, in favor of native EntityManager usage
(typically obtained through <code>@PersistenceContext</code>)
Note that this class did not get upgraded to JPA 2.0 and never will.

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两者都推荐使用
@PersistenceContext(unitName = "jpa")
private EntityManager entityManager;

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但是Hibenrate3.X的却没有过时，而Spring整合Hibenate4.X的时候，却没有了HibernateDaoSupport和HibernateTemplate的支持，却推荐使用SessionFactory，即使用Hibenate原生的API。

呵呵，编辑器真的好了。。。

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