hibernate 与 spring整合,SessionFactory初始化hibernate,Session数据的增删改查

导包

不同于以往的导包，由于我们创建的是maven的webapp项目，所以现在只需配置下pomxml这个配置文件，系统会自动到maven的中央仓库去下载相应的包.

本人的pom.xml配置文件如下（都写有说明的哈）： 

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">  <modelVersion>4.0.0</modelVersion>  <groupId>XRog</groupId>  <artifactId>ssh</artifactId>  <packaging>war</packaging>  <version>1.0-SNAPSHOT</version>  <name>ssh Maven Webapp</name>  <url>http://maven.apache.org</url>  <!-- 本人将配置包的版本信息都统一放入此处，方便以后管理-->  <properties>    <springVersion>4.3.1.RELEASE</springVersion>    <hibernateVersion>4.3.5.Final</hibernateVersion>    <jstlVersion>1.2</jstlVersion>    <taglibVersion>1.1.2</taglibVersion>    <servletVersion>3.0-alpha-1</servletVersion>    <jsonVersion>1.9.13</jsonVersion>    <jacksonVersion>2.5.0</jacksonVersion>    <mysqlVersion>5.1.38</mysqlVersion>    <c3p0Version>0.9.1.2</c3p0Version>    <log4jVersion>1.2.17</log4jVersion>    <fileuploadVersion>1.3.1</fileuploadVersion>    <lombokVersion>1.16.10</lombokVersion>  </properties>  <dependencies>    <!-- 单元测试 -->    <dependency>      <groupId>junit</groupId>      <artifactId>junit</artifactId>      <version>3.8.1</version>      <scope>test</scope>    </dependency>    <!-- spring-->    <dependency>      <groupId>org.springframework</groupId>      <artifactId>spring-beans</artifactId>      <version>${springVersion}</version>    </dependency>    <dependency>      <groupId>org.springframework</groupId>      <artifactId>spring-core</artifactId>      <version>${springVersion}</version>    </dependency>    <dependency>      <groupId>org.springframework</groupId>      <artifactId>spring-context</artifactId>      <version>${springVersion}</version>    </dependency>    <dependency>      <groupId>org.springframework</groupId>      <artifactId>spring-orm</artifactId>      <version>${springVersion}</version>    </dependency>    <!-- spring web + spring MVC-->    <dependency>      <groupId>org.springframework</groupId>      <artifactId>spring-web</artifactId>      <version>${springVersion}</version>    </dependency>    <dependency>      <groupId>org.springframework</groupId>      <artifactId>spring-webmvc</artifactId>      <version>${springVersion}</version>    </dependency>    <!-- hibernate配置-->    <dependency>      <groupId>org.hibernate</groupId>      <artifactId>hibernate-core</artifactId>      <version>${hibernateVersion}</version>    </dependency>    <!-- hibernate 缓存, 视情况添加-->    <dependency>      <groupId>org.hibernate</groupId>      <artifactId>hibernate-ehcache</artifactId>      <version>${hibernateVersion}</version>    </dependency>    <!-- jsp页面使用的jstl支持-->    <dependency>      <groupId>jstl</groupId>      <artifactId>jstl</artifactId>      <version>${jstlVersion}</version>    </dependency>    <dependency>      <groupId>taglibs</groupId>      <artifactId>standard</artifactId>      <version>${taglibVersion}</version>    </dependency>    <dependency>      <groupId>javax.servlet</groupId>      <artifactId>servlet-api</artifactId>      <version>${servletVersion}</version>      <scope>provided</scope>    </dependency>    <!-- DataBase数据库连接 mysql包-->    <dependency>      <groupId>mysql</groupId>      <artifactId>mysql-connector-java</artifactId>      <version>${mysqlVersion}</version>    </dependency>    <!-- 数据库连接池-->    <dependency>      <groupId>c3p0</groupId>      <artifactId>c3p0</artifactId>      <version>${c3p0Version}</version>    </dependency>    <!-- json数据 使springMVC可以返回json值 ,视情况添加-->    <dependency>      <groupId>org.codehaus.jackson</groupId>      <artifactId>jackson-mapper-asl</artifactId>      <version>${jsonVersion}</version>    </dependency>    <!-- Jackson可以轻松的将Java对象转换成json对象和xml文档,同样也可以将json、xml转换成Java对象-->    <dependency>      <groupId>com.fasterxml.jackson.core</groupId>      <artifactId>jackson-core</artifactId>      <version>${jacksonVersion}</version>    </dependency>    <dependency>      <groupId>com.fasterxml.jackson.core</groupId>      <artifactId>jackson-annotations</artifactId>      <version>${jacksonVersion}</version>    </dependency>    <dependency>      <groupId>com.fasterxml.jackson.core</groupId>      <artifactId>jackson-databind</artifactId>      <version>${jacksonVersion}</version>    </dependency>    <!-- log4j配置, 视情况添加-->    <dependency>      <groupId>log4j</groupId>      <artifactId>log4j</artifactId>      <version>${log4jVersion}</version>    </dependency>    <!--文件 上传-->    <dependency>      <groupId>commons-fileupload</groupId>      <artifactId>commons-fileupload</artifactId>      <version>${fileuploadVersion}</version>    </dependency>    <!-- lombok插件导包-->      <dependency>        <groupId>org.projectlombok</groupId>        <artifactId>lombok</artifactId>        <version>${lombokVersion}</version>        <scope>provided</scope>      </dependency>  </dependencies>  <build>    <finalName>ssh</finalName>  </build></project>

 

OK，配置后运行下maven,就会自动向中央仓库下载相应的包啦！（这个就不多说了）。

 

SpringMVC配置

我现在在这里把我配置后的结构拿出来给你们看下

 

 

我们先配置下SpringMVC的配置：resources/META-INF/spring-mvc.xml

<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:mvc="http://www.springframework.org/schema/mvc"       xsi:schemaLocation="http://www.springframework.org/schema/beans        http://www.springframework.org/schema/beans/spring-beans-4.1.xsd        http://www.springframework.org/schema/context        http://www.springframework.org/schema/context/spring-context-4.1.xsd        http://www.springframework.org/schema/mvc        http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">              <!-- 启动注解驱动的spring MVC功能,注册请求url和注解POJO类方法的映射-->       <mvc:annotation-driven />

 　　　 <context:component-scan base-package="com.ssh" />

    <!-- 对模型视图名称的解析,在请求时模型视图名称添加前后缀 -->    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />        <property name="prefix" value="views/" />      <!-- 前缀 -->        <property name="suffix" value=".jsp" />   <!-- 后缀 -->    </bean>        <!--这里是对静态资源的映射-->    <mvc:resources mapping="/js/**" location="/resources/js/" />    <mvc:resources mapping="/css/**" location="/resources/css/" />    <mvc:resources mapping="/img/**" location="/resources/img/" /></beans>

 好了，我们现在修改下web.xml这个配置文件，完善下SpringMVC的配置， web.xml配置如下：

<?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"         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"         version="3.0">        <!-- 地址为http://localhost:8080/  显示的默认网页-->        <welcome-file-list>          <welcome-file>/index.jsp</welcome-file>        </welcome-file-list>        <!-- spring MVC config start-->        <servlet>            <servlet-name>spring</servlet-name>            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>            <init-param>              <param-name>contextConfigLocation</param-name>              <!-- 此处指向的的是SpringMVC的配置文件 -->              <param-value>classpath:META-INF/spring-mvc.xml</param-value>            </init-param>            <!--配置容器在启动的时候就加载这个servlet并实例化-->            <load-on-startup>1</load-on-startup>        </servlet>        <servlet-mapping>            <servlet-name>spring</servlet-name>            <url-pattern>/</url-pattern>        </servlet-mapping>        <!-- spring MVC config end--></web-app>

OK，SpringMVC配置完成，现在我们进行一下测试吧

在controller层新建一个MainController，内容如下

package com.ssh.controller;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;/** * Created by XRog * On 2/1/2017.12:36 AM */@Controllerpublic class MainController {    @RequestMapping(value = "test", method = RequestMethod.GET)    public String test(){//        实际返回的是views/test.jsp ,spring-mvc.xml中配置过前后缀        return "test";    }}

test.jsp网页如下：

<html><body><center><h2 style="color: #ff261a;">this is my test page!</h2></center></body></html>

 

重启Tomcat服务器， 然后浏览器访问http://localhost/test如下图所示：

 

PS： Tomcat默认端口是8080，我更改了端口号，如若你们为更改，正确的访问地址是localhost：8080/test

OK，成功访问。 

SpringMVC+Spring整合

 这个就十分简单了， 配置applicationContext.xml这个Spring的配置文件如下：

<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:mvc="http://www.springframework.org/schema/mvc"       xsi:schemaLocation="http://www.springframework.org/schema/beans        http://www.springframework.org/schema/beans/spring-beans-4.1.xsd        http://www.springframework.org/schema/context        http://www.springframework.org/schema/context/spring-context-4.1.xsd        http://www.springframework.org/schema/mvc        http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">        <!-- 自动扫描 -->        <context:component-scan base-package="com.ssh">            <!-- 扫描时跳过 @Controller 注解的JAVA类（控制器） -->            <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>        </context:component-scan></beans>

完善web.xml配置文件如下：

<?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"         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"         version="3.0">        <!-- 地址为http://localhost:8080/  显示的默认网页-->        <welcome-file-list>          <welcome-file>/index.jsp</welcome-file>        </welcome-file-list>    <!--加载Spring的配置文件到上下文中去-->        <context-param>            <param-name>contextConfigLocation</param-name>            <param-value>                classpath:META-INF/applicationContext.xml            </param-value>        </context-param>        <!-- spring MVC config start-->        <servlet>            <servlet-name>spring</servlet-name>            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>            <init-param>              <param-name>contextConfigLocation</param-name>              <!-- 此处指向的的是SpringMVC的配置文件 -->              <param-value>classpath:META-INF/spring-mvc.xml</param-value>            </init-param>            <!--配置容器在启动的时候就加载这个servlet并实例化-->            <load-on-startup>1</load-on-startup>        </servlet>        <servlet-mapping>            <servlet-name>spring</servlet-name>            <url-pattern>/</url-pattern>        </servlet-mapping>        <!-- spring MVC config end-->        <!-- Spring监听器 -->        <listener>            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>        </listener>        <!--  字符集过滤  -->        <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></web-app>

web.xml配置文件中更改了三处：引入Spring配置文件 Spring的监听器  以及 字符集过滤

 

OK，Spring+SpringMVC配置完成，下面我们开始测试：

在service写一个TestServiceImpl实现TestService接口并实现其test()方法， 代码如下：

package com.ssh.service.impl;import com.ssh.service.TestService;import org.springframework.stereotype.Service;/** * Created by XRog * On 2/1/2017.12:58 AM */@Servicepublic class TestServiceImpl implements TestService {    public String test() {        return "test";    }}

PS:这里注意写@Service注解

MainController控制器更改如下：

package com.ssh.controller;import com.ssh.service.TestService;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.ResponseBody;/** * Created by XRog * On 2/1/2017.12:36 AM */@Controllerpublic class MainController {    @Autowired    private TestService testService;    @RequestMapping(value = "test", method = RequestMethod.GET)    public String test(){//        实际返回的是views/test.jsp ,spring-mvc.xml中配置过前后缀        return "test";    }    @RequestMapping(value = "springtest", method = RequestMethod.GET)    public String springTest(){        return testService.test();    }}

控制器这里我们运用了Spring的依赖注入自动装配。

在浏览器中输入地址http://localhost/springtest调用springtest方法     

 

yes，成功返回，说明我们之前的配置没问题

Spring+SpringMVC+hibernate整合

好了，现在就缺hibernate这个框架了。。 我先给大家看些我搭建好之后的结构图吧

 

我们想来编写config.properties这个配置文件，里面存放的是hibernate的一些配置

#database connection configjdbc.driver = com.mysql.jdbc.Driverjdbc.url = jdbc:mysql://?????:3306/ssh?useUnicode=true&characterEncoding=utf-8jdbc.username = rootjdbc.password = ???#hibernate confighibernate.dialect = org.hibernate.dialect.MySQLDialecthibernate.show_sql = truehibernate.format_sql = truehibernate.hbm2ddl.auto = update

这里连接数据库的参数由于我是连接我晚上的数据库，因此我数据库地址和密码打了“？？？”,你们连接时改成自己本地的就OK了

下面配置hibernate，这里我为了方便，就直接写进applicationContext.xml里面。配置后的applicationContext.xml如下：

<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:mvc="http://www.springframework.org/schema/mvc"       xsi:schemaLocation="http://www.springframework.org/schema/beans        http://www.springframework.org/schema/beans/spring-beans-4.1.xsd        http://www.springframework.org/schema/context        http://www.springframework.org/schema/context/spring-context-4.1.xsd        http://www.springframework.org/schema/mvc        http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">    <!--********************************************配置Spring***************************************-->        <!-- 自动扫描 -->        <context:component-scan base-package="com.ssh">            <!-- 扫描时跳过 @Controller 注解的JAVA类（控制器） -->            <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>        </context:component-scan>    <!--********************************************配置hibernate********************************************-->    <!--扫描配置文件(这里指向的是之前配置的那个config.properties)-->    <context:property-placeholder location="classpath:/config.properties" />    <!--配置数据源-->    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">        <property name="driverClass" value="${jdbc.driver}" />  <!--数据库连接驱动-->        <property name="jdbcUrl" value="${jdbc.url}" />     <!--数据库地址-->        <property name="user" value="${jdbc.username}" />   <!--用户名-->        <property name="password" value="${jdbc.password}" />   <!--密码-->        <property name="maxPoolSize" value="40" />      <!--最大连接数-->        <property name="minPoolSize" value="1" />       <!--最小连接数-->        <property name="initialPoolSize" value="10" />      <!--初始化连接池内的数据库连接-->        <property name="maxIdleTime" value="20" />  <!--最大空闲时间-->    </bean>    <!--配置session工厂-->    <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">        <property name="dataSource" ref="dataSource" />        <property name="packagesToScan" value="com.ssh.entity" />        <property name="hibernateProperties">            <props>                <prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop> <!--hibernate根据实体自动生成数据库表-->                <prop key="hibernate.dialect">${hibernate.dialect}</prop>   <!--指定数据库方言-->                <prop key="hibernate.show_sql">${hibernate.show_sql}</prop>     <!--在控制台显示执行的数据库操作语句-->                <prop key="hibernate.format_sql">${hibernate.format_sql}</prop>     <!--在控制台显示执行的数据哭操作语句（格式）-->            </props>        </property>    </bean>    <!-- 事物管理器配置  -->    <bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">        <property name="sessionFactory" ref="sessionFactory" />    </bean></beans>

 

 OK，到了这里，配置结束。下面进入测试阶段

实体类（entity)：

package com.ssh.entity;import lombok.Data;import javax.persistence.*;/** * Created by XRog * On 2/2/2017.2:03 PM */@Data@Entity@Table(name = "Person")public class Person {    @Id    @GeneratedValue    private Long id;    @Column(name = "created")    private Long created = System.currentTimeMillis();    @Column(name = "username")    private String username;    @Column(name = "address")    private String address;    @Column(name = "phone")    private String phone;    @Column(name = "remark")    private String remark;}

　　PS：我这里用了一个@Data注解，此注解会自动生成get方法，set方法，toString方法等一系列方法，功能十分强大，不过需要安装插件以及导包， 有兴趣的可以百度下

　　　当然，你也可以手动编写get/set/构造方法。

 

数据库访问层（repository）:

package com.ssh.repository;import java.io.Serializable;import java.util.List;/** * Created by XRog * On 2/2/2017.2:28 PM */public interface DomainRepository<T,PK extends Serializable>{    T load(PK id);    T get(PK id);    List<T> findAll();    void persist(T entity);    PK save(T entity);    void saveOrUpdate(T entity);    void delete(PK id);    void flush();}

package com.ssh.repository;import com.ssh.entity.Person;/** * Created by XRog * On 2/2/2017.2:25 PM */public interface PersonRepository extends DomainRepository<Person,Long> {}

package com.ssh.repository.impl;import com.ssh.repository.PersonRepository;import com.ssh.entity.Person;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Repository;import java.util.List;/** * Created by XRog * On 2/2/2017.2:30 PM */@Repositorypublic class PersonRepositoryImpl implements PersonRepository {    @Autowired    private SessionFactory sessionFactory;    private Session getCurrentSession() {        return this.sessionFactory.openSession();    }    public Person load(Long id) {        return (Person)getCurrentSession().load(Person.class,id);    }    public Person get(Long id) {        return (Person)getCurrentSession().get(Person.class,id);    }    public List<Person> findAll() {        return null;    }    public void persist(Person entity) {        getCurrentSession().persist(entity);    }    public Long save(Person entity) {        return (Long)getCurrentSession().save(entity);    }    public void saveOrUpdate(Person entity) {        getCurrentSession().saveOrUpdate(entity);    }    public void delete(Long id) {        Person person = load(id);        getCurrentSession().delete(person);    }    public void flush() {        getCurrentSession().flush();    }}

　　PS:我这里显示写了一个比较通用的接口，其他所有接口皆继承此接口， 再编写实现类

　　注意：我这里写的session产生是调用的SessionFactory的openSession（）这个方法。之前使用getCurrentSession()一直报错，后来百度了一下才知道，hibernate3版本可以使用getCurrentSession()来创建session，而hibernate4版本则不行。

 

服务层（service）:

package com.ssh.service;import com.ssh.entity.Person;/** * Created by XRog * On 2/2/2017.2:39 PM */public interface PersonService {    Long savePerson();}

package com.ssh.service.impl;import com.ssh.entity.Person;import com.ssh.repository.PersonRepository;import com.ssh.service.PersonService;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;/** * Created by XRog * On 2/2/2017.2:40 PM */@Servicepublic class PersonServiceImpl implements PersonService {    @Autowired    private PersonRepository personRepository;    public Long savePerson() {        Person person = new Person();        person.setUsername("XRog");        person.setPhone("18381005946");        person.setAddress("chenDu");        person.setRemark("this is XRog");        return personRepository.save(person);    }}

控制层（controller）:

package com.ssh.controller;import com.ssh.entity.Person;import com.ssh.service.PersonService;import com.ssh.service.TestService;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.ResponseBody;/** * Created by XRog * On 2/1/2017.12:36 AM */@Controllerpublic class MainController {    @Autowired    private PersonService personService;    @RequestMapping(value = "savePerson", method = RequestMethod.GET)    @ResponseBody    public String savePerson(){        personService.savePerson();        return "success!";    }}

OK，编写完毕，我们重启下服务器然后测试：

我们在看下数据库，跟我们插入的数据对比下

OK，测试完毕，十分成功

 

好了，到这里就结束了，祝大家别出BUG。

　　本人QQ：184370986 （千寻风）

 

项目源码（优化后的）：https://gitee.com/xrom/sshblog