SSH(Spring+Struts2+hibernate)整合基于注解开发的详解

Spring+Struts2+hibernate整合开发项目除了我们常规的方法，还可以使用全注解使开发更加方便快捷。

一：引入支持全注解整合相关的jar包

<!--oracle驱动-->
<!-- https://mvnrepository.com/artifact/com.oracle/ojdbc14 -->
<dependency>
    <groupId>com.oracle</groupId>
    <artifactId>ojdbc6</artifactId>
    <version>11.1.0.7.0</version>
</dependency>
<!--hibernate 核心依赖-->
<!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-core -->
<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-core</artifactId>
    <version>5.0.6.Final</version>
</dependency>

<!-- jta依赖 主要作用是事务处理-->
<!-- https://mvnrepository.com/artifact/javax.transaction/jta -->
<dependency>
    <groupId>javax.transaction</groupId>
    <artifactId>jta</artifactId>
    <version>1.1</version>
</dependency>

<!-- https://mvnrepository.com/artifact/javax/javaee-api -->
<dependency>
    <groupId>javax</groupId>
    <artifactId>javaee-api</artifactId>
    <version>7.0</version>
    <scope>provided</scope>
</dependency>

<!--spring配置jar-->
<!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-context</artifactId>
    <version>4.3.10.RELEASE</version>
</dependency>

<!-- https://mvnrepository.com/artifact/org.springframework/spring-tx -->
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-tx</artifactId>
    <version>4.3.9.RELEASE</version>
</dependency>

<!--aop使用的jar-->
<!-- https://mvnrepository.com/artifact/org.aspectj/aspectjweaver -->
<dependency>
    <groupId>org.aspectj</groupId>
    <artifactId>aspectjweaver</artifactId>
    <version>1.8.7</version>
</dependency>

<!--web编程jar-->
<!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-web</artifactId>
    <version>4.3.10.RELEASE</version>
</dependency>

<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webmvc</artifactId>
    <version>4.1.6.RELEASE</version>
</dependency>

<!--jstl-->
<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>jstl</artifactId>
    <version>1.2</version>
    <scope>runtime</scope>
</dependency>

<!--c3p0连接池-->
<dependency>
    <groupId>c3p0</groupId>
    <artifactId>c3p0</artifactId>
    <version>0.9.1</version>
</dependency>

<!--spring整合hibernate-->
<!-- https://mvnrepository.com/artifact/org.springframework/spring-orm -->
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-orm</artifactId>
    <version>4.3.9.RELEASE</version>
</dependency>

<!--struts2 核心包-->
<!-- https://mvnrepository.com/artifact/org.apache.struts/struts2-core -->
<dependency>
    <groupId>org.apache.struts</groupId>
    <artifactId>struts2-core</artifactId>
    <version>2.3.4</version>
</dependency>

<!--xwork 核心包-->
<!-- https://mvnrepository.com/artifact/org.apache.struts.xwork/xwork-core -->
<dependency>
    <groupId>org.apache.struts.xwork</groupId>
    <artifactId>xwork-core</artifactId>
    <version>2.3.4</version>
</dependency>

<!--Struts整合Spring的jar包-->
<dependency>
    <groupId>org.apache.struts</groupId>
    <artifactId>struts2-spring-plugin</artifactId>
    <version>2.3.4.1</version>
</dependency>

<!--Struts2注解支持jar包-->
<dependency>
    <groupId>org.apache.struts</groupId>
    <artifactId>struts2-convention-plugin</artifactId>
    <version>2.3.4.1</version>
</dependency>

二：构建项目结构（以添加学生为例）

beans层

@Entity
@Table     //数据库的表名  如果不写就默认为实体名字
public class StudentSSH {
    @Id
    @GeneratedValue    //id的生成策略   
    private int id;
    @Column
    private String name;

    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
}

dao层

public interface IStudentDAO {
    /**
     * 添加学生
     * @param student
     * @return
     */
    public int add(StudentSSH student);

}

@Repository("StudentDAO")
public class StudentDAOImpl implements IStudentDAO {
    //注入sessionFactory工厂
    @Resource
    private SessionFactory sessionFactory;
    //添加
    public int add(StudentSSH student) {
        Serializable count = sessionFactory.getCurrentSession().save(student);
        return (Integer)count;
    }

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

service层

public interface IStudentService {
    /**
     * 添加学生
     * @param student
     * @return
     */
    public int add(StudentSSH student);

}

@Service("StudentService")
public class StudentServiceImpl implements IStudentService {
    @Resource(name = "StudentDAO")
    private IStudentDAO dao;
    public IStudentDAO getDao() {
        return dao;
    }
    public void setDao(IStudentDAO dao) {
        this.dao = dao;
    }

    /**
     * 添加
     * @param student
     * @return
     */
    @Transactional
    public int add(StudentSSH student) {
        int result = dao.add(student);
            return result;
        }
}

action层

@Controller("StudentAction")
@ParentPackage("struts-default")
@Namespace("/")
@Scope("prototype")   //struts为多例   spring为单例
public class StudentAction extends ActionSupport {
    private StudentSSH studentSSH;
    @Resource(name = "StudentService")
    private IStudentService studentService;
    /**
     * 新增
     * @return
     */
    @Action(value = "add",results = {@Result(name = "success",location = "/jsp/index.jsp")})
    public String Add(){
         studentService.add(studentSSH);
         return SUCCESS;
    }
    public StudentSSH getStudentSSH() {
        return studentSSH;
    }
    public void setStudentSSH(StudentSSH studentSSH) {
        this.studentSSH = studentSSH;
    }

    public IStudentService getStudentService() {
        return studentService;
    }
    public void setStudentService(IStudentService studentService) {
        this.studentService = studentService;
    }
}

三：书写配置文件
applicationContext.xml配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:tx="http://www.springframework.org/schema/tx"
       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/context http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/tx   http://www.springframework.org/schema/tx/spring-tx.xsd
">

    <!--识别注解-->
    <context:component-scan base-package="cn.sjl"></context:component-scan>

    <!--数据源-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driverClass}"></property>
        <property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property>
        <property name="user" value="${jdbc.user}"></property>
        <property name="password" value="${jdbc.password}"></property>
    </bean>

    <!--识别jdbc.properties-->
    <context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>

    <!--sessionfactory工厂-->
    <bean id="factory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
         <property name="hibernateProperties">
             <props>
                 <!--控制台打印SQL语句-->
                 <prop key="hibernate.show_sql">true</prop>
                 <!--格式化sql-->
                 <prop key="hibernate.format_sql">true</prop>
                 <!--方言-->
                 <prop key="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</prop>
                 <!--绑定线程-->
                 <prop key="hibernate.current_session_context_class">org.springframework.orm.hibernate5.SpringSessionContext</prop>
             </props>
         </property>
        <!--扫描小配置文件-->
       <!-- <property name="mappingDirectoryLocations" value="classpath:cn/sjl/beans"></property>-->
        <property name="packagesToScan" value="cn.sjl"></property>
    </bean>
    <!--事务管理器-->
    <bean id="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">
          <property name="sessionFactory" ref="factory"></property>
    </bean>

    <!--事务-->
    <tx:annotation-driven transaction-manager="transactionManager"></tx:annotation-driven>
</beans>

jdbc.properties文件

jdbc.driverClass=oracle.jdbc.driver.OracleDriver     
jdbc.jdbcUrl=jdbc:oracle:thin:@localhost:1521:orcl
jdbc.user=root        //数据库用户名
jdbc.password=root   //数据库密码

四:web.xml文件

<context-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>classpath:applicationContext.xml</param-value>
</context-param>
<filter>
  <filter-name>struts</filter-name>
  <!--核心控制器-->
  <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
  <filter-name>struts</filter-name>
  <url-pattern>/*</url-pattern>
</filter-mapping>
<!--监听器-->
<listener>
  <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

五：jsp页面

<%@ taglib prefix="s" uri="/struts-tags" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>添加</title>
</head>
<body>
<h2>ssh注解版整合</h2>
<s:debug></s:debug>
<form  method="post" action="/add">
    姓名：<input type="text" name="studentSSH.name">
    <input type="submit" value="添加">
</form>
</body>
</html>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>添加成功</title>
</head>
<body>
<h2>add ok</h2>
</body>
</html>

六：部署Tomcat并启动