首先导入依赖:
<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>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
</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>
<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>${hibernateVersion}</version>
</dependency>
<!-- hibernate 缓存-->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-ehcache</artifactId>
<version>${hibernateVersion}</version>
</dependency>
<!-- 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>${servletVersion}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysqlVersion}</version>
</dependency>
<!-- 数据库连接池-->
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>${c3p0Version}</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>${jsonVersion}</version>
</dependency>
<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>${jacksonVersion}</version>
</dependency>
<!--
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${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>
编写spring的配置文件,applicationContext.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: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.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<!--Spring要扫描的包-->
<!-- 开启注解扫描,要扫描的是service和dao层的注解,要忽略web层注解,
因为web层让SpringMVC框架 去管理 -->
<context:component-scan base-package="com.tsu">
<!--配置要忽略的注解,Controller由Sringmvc管理-->
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"></context:exclude-filter>
</context:component-scan>
<!--********************************************配置hibernate********************************************-->
<!--扫描配置文件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="${jdbc.driver}" /> <!--驱动-->
<property name="jdbcUrl" value="${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" />
<property name="minPoolSize" value="1" />
<property name="initialPoolSize" value="10" />
<property name="maxIdleTime" value="20" />
</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.tsu.entity" />
<property name="hibernateProperties">
<props>
<!--create 每次都会重新创建表结构 -->
<prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>
<!--数据库方言-->
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<!--是否在控制台打印SQL语句-->
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<!--将SQL语句格式化-->
<prop key="hibernate.format_sql">${hibernate.format_sql}</prop>
</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>
hibernate的config.properties:
#数据库的配置
jdbc.driver = com.mysql.jdbc.Driver
jdbc.url = jdbc:mysql://localhost:3306/sshh?useUnicode=true&characterEncoding=utf-8
jdbc.username = root
jdbc.password = 123456
#hibernate的配置
hibernate.dialect = org.hibernate.dialect.MySQLDialect
hibernate.show_sql = true
hibernate.format_sql = true
hibernate.hbm2ddl.auto = update
springmvc的配置文件spring-mvc.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 配置创建 spring 容器要扫描的包 -->
<context:component-scan base-package="com.tsu">
<!-- 制定扫包规则 ,只扫描使用@Controller 注解的 JAVA 类 -->
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"></context:include-filter>
</context:component-scan>
<!--配置视图解析器-->
<bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/jsps/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
<!-- 设置静态资源不过滤 -->
<mvc:resources mapping="/js/**" location="/resources/js/" />
<mvc:resources mapping="/css/**" location="/resources/css/" />
<mvc:resources mapping="/img/**" location="/resources/img/" />
<!--开启mvc对注解的支持-->
<mvc:annotation-driven></mvc:annotation-driven>
</beans>
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"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">
<!--监听器-->
<listener>
<!--默认加载WEB-INf下的applicationContext.xml-->
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<!--给监听器配置一个文件路径 给该Listener指定要加载的xml-->
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<!--编码过滤器-->
<filter>
<filter-name>characterEncodingFilter</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>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- spring MVC config -->
<servlet>
<servlet-name>spring</servlet-name>
<!--前端控制器 到处理器映射器 再到处理器适配器 再到视图解析器-->
<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:/spring-mvc.xml</param-value>
</init-param>
<!--配置容器在启动的时候就加载-->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
建立实体类:
@Data
@Entity
@Table(name = "Person")
public class Person {
@Id
@GeneratedValue //生成唯一标识
private Long id;
@Column(name = "created")
private Long created = System.currentTimeMillis();
@Column(name = "username")
private String username;
@Column(name = "address")
private String address;
}
controller和service:略
dao:
@Repository
public class PersonDaoImpl implements IPersonDao {
@Autowired
private SessionFactory sessionFactory;
/*
* 获取session
* */
private Session getCurrentSession() {
return this.sessionFactory.openSession();
}
/*
* 查询
* 查询不到load会返回空
* get会返回null
* */
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 sessionFactory.openSession().createQuery("from Person").list();
}
/*该方法没有返回值*/
public void persist(Person entity) {
getCurrentSession().persist(entity);
}
/*该方法返回该持久化对象的标识属性值(即主键)*/
public Long save(Person entity) {
return (Long)getCurrentSession().save(entity);
}
public void saveOrUpdate(Person entity) {
getCurrentSession().saveOrUpdate(entity);
}
}