SSH整合之注解式开发

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SSH项目结构图

Maven依赖

<properties>
    <org.springframework.version>4.2.0.RELEASE</org.springframework.version> 
</properties>
<dependencies>
<dependency>
  <groupId>junit</groupId>
  <artifactId>junit</artifactId>
  <version>3.8.1</version>
  <scope>test</scope>
</dependency>
<!-- Struts2的核心包 -->
<dependency>
    <groupId>org.apache.struts</groupId>
    <artifactId>struts2-core</artifactId>
    <version>2.3.24</version>
    <exclusions>
        <exclusion>
            <artifactId>javassist</artifactId>
                <groupId>javassist</groupId>
        </exclusion>
    </exclusions>
</dependency>

<!-- 添加Hibernate依赖 -->
<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-core</artifactId>
    <version>5.0.1.Final</version>
</dependency>

<!-- 添加Log4J依赖 -->
<dependency>
    <groupId>log4j</groupId>
    <artifactId>log4j</artifactId>
    <version>1.2.16</version>
</dependency>
    <dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-core</artifactId>
    <version>2.8.2</version>
</dependency>

<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-nop</artifactId>
    <version>1.6.4</version>
</dependency>

<!-- mysql数据库的驱动包 -->
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>5.1.6</version>
</dependency>

<!-- c3p0 -->
<dependency>
    <groupId>com.mchange</groupId>
    <artifactId>c3p0</artifactId>
    <version>0.9.2.1</version>
</dependency>
<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-c3p0</artifactId>
    <version>5.0.1.Final</version>
</dependency>
<dependency>
    <groupId>com.mchange</groupId>
    <artifactId>mchange-commons-java</artifactId>
    <version>0.2.3.4</version>
</dependency>

<!-- spring start -->  

<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-beans</artifactId>  
    <version>${org.springframework.version}</version>  
</dependency>  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-context</artifactId>  
    <version>${org.springframework.version}</version>  
</dependency>  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-context-support</artifactId>  
    <version>${org.springframework.version}</version>  
</dependency>  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-core</artifactId>  
    <version>${org.springframework.version}</version>  
</dependency>  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-expression</artifactId>  
    <version>${org.springframework.version}</version>  
</dependency>  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-instrument</artifactId>  
    <version>${org.springframework.version}</version>  
</dependency>  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-instrument-tomcat</artifactId>  
    <version>${org.springframework.version}</version>  
</dependency>  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-jms</artifactId>  
    <version>${org.springframework.version}</version>  
</dependency>  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-messaging</artifactId>  
    <version>${org.springframework.version}</version>  
</dependency>  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-oxm</artifactId>  
    <version>${org.springframework.version}</version>  
</dependency>  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-test</artifactId>  
    <version>${org.springframework.version}</version>  
</dependency>  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-web</artifactId>  
    <version>${org.springframework.version}</version>  
</dependency>  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-webmvc</artifactId>  
    <version>${org.springframework.version}</version>  
</dependency>  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-webmvc-portlet</artifactId>  
    <version>${org.springframework.version}</version>  
</dependency>  
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-websocket</artifactId>  
    <version>${org.springframework.version}</version>  
</dependency>  
<!-- spring end -->
<!-- Spring整合hibernate start-->
<!-- AOP的两个jar -->
<dependency>
    <groupId>aopalliance</groupId>
    <artifactId>aopalliance</artifactId>
    <version>1.0</version>
</dependency>
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-aop</artifactId>  
    <version>${org.springframework.version}</version>  
</dependency>
<!-- AspectJ的两个jar -->
<dependency>
    <groupId>org.aspectj</groupId>
    <artifactId>aspectjweaver</artifactId>
    <version>1.6.8</version>
</dependency>
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-aspects</artifactId>  
    <version>${org.springframework.version}</version>  
</dependency> 
<!-- Spring的JDBC -->
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-jdbc</artifactId>  
    <version>${org.springframework.version}</version>  
</dependency> 
<!-- Spring整合orm -->
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-orm</artifactId>  
    <version>${org.springframework.version}</version>  
</dependency> 
<!-- Spring事务 -->
<dependency>  
    <groupId>org.springframework</groupId>  
    <artifactId>spring-tx</artifactId>  
    <version>${org.springframework.version}</version>  
</dependency>  
<!-- Spring整合struts2、hibernate end-->  
<!-- Struts2和Spring整合依赖 -->
<dependency>
   <groupId>org.apache.struts</groupId>
   <artifactId>struts2-spring-plugin</artifactId>
   <version>2.5.10</version>
</dependency>
</dependencies>

web.xml

<web-app>
    <display-name>sshdemo</display-name>
    <!--注册Spring配置文件的位置-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring.xml</param-value>
    </context-param>

    <!--注册Struts2核心过滤器-->
    <filter>
        <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!-- 注册ServletContext监听器的实现类ContextLoaderListener, 用于创建Spring容器, 并将
       创建好的Spring容器对象放入到ServletContext域属性空间中
    -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
</web-app>

spring.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">

    <!-- 注册数据源：C3P0 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driver}"></property>
        <property name="jdbcUrl" value="${jdbc.url}"></property>
        <property name="user" value="${jdbc.user}"></property>
        <property name="password" value="${jdbc.password}"></property>
    </bean>
    <!--注册JDBC属性文件的位置-->
    <context:property-placeholder location="classpath:jdbc.properties"/>

    <!-- 注册SessionFactory的Bean -->
    <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <!-- 实体包扫描器 -->
         <property name="packagesToScan" value="org.test.dto"></property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
                <prop key="hibernate.hbm2ddl.auto">update</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.formate_sql">true</prop>
                <prop key="hibernate.current_session_context_class">org.springframework.orm.hibernate5.SpringSessionContext</prop>
            </props>
        </property>
    </bean>

    <!--定义组件扫描的基本包-->
    <context:component-scan base-package="org.test.*">

    </context:component-scan>

    <!-- 注册事务管理器 -->
    <bean id="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
    <!--注册事务-->
    <tx:annotation-driven transaction-manager="transactionManager"/>

</beans>

jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://127.0.0.1:3306/sshdemo?useUnicode=true&characterEncoding=utf-8
jdbc.username=root
jdbc.password=123

实例代码

@Entity
@Table(name = "t_user")
public class User {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    private String nickname;
    private Integer age;

    public User() {
    }

    public User(String nickname, Integer age) {
        this.nickname = nickname;
        this.age = age;
    }

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getNickname() {
        return nickname;
    }

    public void setNickname(String nickname) {
        this.nickname = nickname;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }
}

/**
 * ModelDriven用户封装请求表单的数据
 */
@ParentPackage("struts-default")
@Namespace("/test")
@Scope("prototype")
public class UserAction extends ActionSupport implements ModelDriven<User>{
    @Autowired
    @Qualifier("myService")
    private IUserService userService;
    private User user;

    public void setUserService(IUserService userService) {
        this.userService = userService;
    }
    public User getUser() {
        return user;
    }
    public void setUser(User user) {
        this.user = user;
    }

    @Action(value = "register", results = @Result(location = "/success.jsp"))
    public String register() {
        userService.saveUser(user);
        return "success";
    }

    public User getModel() {
        if(user == null) {
            user = new User();
        }
        return user;
    }
}

public interface IUserService {
    void saveUser(User user);
}
@Scope("prototype")
@Component("myService")
public class UserServiceImpl implements IUserService {
    @Autowired
    @Qualifier("myDao")
    private IUserDao userDao;

    public void setUserDao(IUserDao userDao) {
        this.userDao = userDao;
    }

    public void saveUser(User user) {
        userDao.insertUser(user);
    }
}

public interface IUserDao {
    void insertUser(User user);
}
@Scope("prototype")
@Component("myDao")
@Transactional
public class UserDaoImpl implements IUserDao {
    @Autowired
    @Qualifier("sessionFactory")
    private SessionFactory sessionFactory;

    public void setSessionFactory(SessionFactory sessionFactory) {
        this.sessionFactory = sessionFactory;
    }

    public void insertUser(User user) {
        sessionFactory.getCurrentSession().save(user);
    }
}

//index.jsp
<html>
<body>
    <form action="test/register.action" method="post">
        姓名：<input type="text" name="nickname"/><br/>
        年龄：<input type="text" name="age"/><br/>
        <input type="submit" value="登录"/>
    </form>
</body>
</html>