搭建基于注解方式的SSH项目框架

来源：互联网发布：芜湖java招聘编辑：程序博客网时间：2024/06/05 11:00

搭建基于注解方式的SSH项目框架

1. 项目目录以及数据表结构

2. 准备jar包

下面是我开发项目准备的jar包，可能有一些是项目依赖的，例如其中的druid-1.0.13.jar、ftplet-api-1.0.6.jar ftpserver-core-1.0.6.jar、junit-4.1.1.jar、slf4j-api-1.7.12这几个包就是根据需要添加的，分别是阿里巴巴开源数据库连接池、两个ftp文件服务器、单元测试以及slf4j用于log跟踪记录数据库操作信息，其他的都是SSH中的jar包，到百度共享下载下图中的所有包。

（jar包下载链接: http://pan.baidu.com/s/1pJ42207 提取密码: c5yh）

3. 配置struts2

配置代码如下（所有的配置属性都可以在struts2-core-×××.jar包中org.apache.struts2下的default.properties中找到）

【struts.xml】

<?xml version="1.0"encoding="UTF-8" ?><!DOCTYPE struts PUBLIC   "-//Apache Software Foundation//DTD StrutsConfiguration 2.3//EN"   "http://struts.apache.org/dtds/struts-2.3.dtd"> <struts>   <constant name="struts.enable.DynamicMethodInvocation"value="false" />   <constant name="struts.devMode" value="true" />   <!-- 指定由spring负责action对象的创建 -->   <constant name="struts.objectFactory" value="spring" />   <!-- 国际化设置，请求参数为utf-8编码 -->   <constant name="struts.i18n.encoding" value="utf-8" />   <!-- 指定被struts2处理的请求后缀类型，如果有多个，用逗号隔开 -->   <constant name="struts.action.extension" value="action" />   <!-- 指定上传文件的大小上限 -->   <constant name="struts.multipart.maxSize" value="209715200" />   <!-- 当配置文件改动后是否重新加载，生产环境下需要设置为false -->   <constant name="struts.configuration.xml.reload" value="false" />   <!-- 是否使用struts2的开发模式，生产环境下需要设置为false -->   <constant name="struts.devMode" value="false" />   <!-- 浏览器是否缓存静态内容，生产环境下需要设置为true -->   <constant name="struts.serve.static.browserCache" value="true" />   <!-- <includefile="example.xml"/> --></struts>

4. 配置Spring+Hibernate

4.1 编写Spring配置文件applicationContext.xml

【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:aop="http://www.springframework.org/schema/aop"    xmlns:tx="http://www.springframework.org/schema/tx"    xmlns:context="http://www.springframework.org/schema/context"    xmlns:task="http://www.springframework.org/schema/task"    xsi:schemaLocation="    http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-4.1.xsd    http://www.springframework.org/schema/aophttp://www.springframework.org/schema/aop/spring-aop-4.1.xsd    http://www.springframework.org/schema/txhttp://www.springframework.org/schema/tx/spring-tx-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/taskhttp://www.springframework.org/schema/task/spring-task-4.1.xsd">      <!-- 扫描base-package下的文件，并注册bean，同时激活已注册的bean，就是扫描那些用@Service,@component,@Repositiry标识的那些类 -->   <context:component-scan base-package="com.mlq.love" /></beans>

4.2编写Hibernate配置文件applicationContext-hibernate.xml

首先编写配置文件dbconfig.properties，这样提取出来配置信息可以比较直观的查看和维护

【dbconfig.properties】

url=jdbc\:mysql\://localhost\:3306/testdriverClassName=com.mysql.jdbc.Driverusername=rootpassword=centerminitialSize=10minIdle=5maxActive=50maxWait=60000timeBetweenEvictionRunsMillis=60000minEvictableIdleTimeMillis=300000poolPreparedStatements=truemaxPoolPreparedStatementPerConnectionSize=100validationQuery=SELECT'x'testWhileIdle=truetestOnBorrow=falsetestOnReturn=falsemaxOpenPreparedStatements=20removeAbandoned=falseremoveAbandonedTimeout=1800logAbandoned=true

【applicationContext-hibernate.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:aop="http://www.springframework.org/schema/aop"   xmlns:tx="http://www.springframework.org/schema/tx"xmlns:context="http://www.springframework.org/schema/context"   xmlns:task="http://www.springframework.org/schema/task"   xsi:schemaLocation="    http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-4.1.xsd    http://www.springframework.org/schema/aophttp://www.springframework.org/schema/aop/spring-aop-4.1.xsd    http://www.springframework.org/schema/txhttp://www.springframework.org/schema/tx/spring-tx-4.1.xsd   http://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-4.1.xsd    http://www.springframework.org/schema/taskhttp://www.springframework.org/schema/task/spring-task-4.1.xsd">   <bean id="propertyConfigurer"          class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">          <property name="locations">              <list>                  <value>/WEB-INF/classes/dbconfig.properties</value>              </list>          </property>     </bean>        <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">      <property name="url" value="${url}"/>      <!--可以省略这个driveerClassName的指定，因为Druid提供了N个数据库的支持-->      <property name="driverClassName" value="${driverClassName}" />      <property name="username" value="${username}"/>      <property name="password" value="${password}"/>            <!-- 配置初始化大小、最小、最大 -->      <property name="initialSize" value="${initialSize}" />      <property name="minIdle" value="${minIdle}"/>      <property name="maxActive" value="${maxActive}"/>       <!-- 配置获取连接等待超时的时间 -->      <property name="maxWait" value="${maxWait}"/>       <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->      <property name="timeBetweenEvictionRunsMillis" value="${timeBetweenEvictionRunsMillis}" />       <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->      <property name="minEvictableIdleTimeMillis" value="${minEvictableIdleTimeMillis}" />            <!-- 打开PSCache(PreparedStatementCache)，并且指定每个连接上PSCache的大小 -->      <property name="poolPreparedStatements" value="${poolPreparedStatements}" />      <property name="maxPoolPreparedStatementPerConnectionSize"value="${maxPoolPreparedStatementPerConnectionSize}"/>            <property name="validationQuery" value="${validationQuery}" />      <property name="testWhileIdle" value="${testWhileIdle}" />      <property name="testOnBorrow" value="${testOnBorrow}" />      <property name="testOnReturn" value="${testOnReturn}" />   </bean>   <bean id="sessionFactory"      class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">      <!-- entity包扫描范围 -->      <property name="packagesToScan">         <list>            <value>com.mlq.love.entity</value>         </list>      </property>      <property name="dataSource" ref="dataSource" />      <property name="hibernateProperties">         <props>            <prop key="hibernate.hbm2ddl.auto">update</prop>            <prop key="dialect">org.hibernate.dialect.MySQLDialect</prop>            <prop key="hibernate.show_sql">true</prop>            <prop key="hibernate.format_sql">true</prop>            <prop key="current_session_context_class">org.springframework.orm.hibernate4.SpringSessionContext</prop>            <prop key="cache.provider_class">org.hibernate.cache.NoCacheProvider</prop>         </props>      </property>   </bean>      <!-- 事务配置 -->   <bean id="transactionManager"      class="org.springframework.orm.hibernate4.HibernateTransactionManager">      <property name="sessionFactory" ref="sessionFactory" />   </bean>      <!-- 开启注解配置事务 -->   <tx:annotation-driven transaction-manager="transactionManager" /></beans>

5. 修改web.xml文件

主要是增加Struts2和Spring的配置信息

【web.xml】

<?xml version="1.0"encoding="UTF-8"?><web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns="http://xmlns.jcp.org/xml/ns/javaee"xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaeehttp://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">   <display-name>SSH搭建（注解）</display-name>   <welcome-file-list>      <welcome-file>index.html</welcome-file>   </welcome-file-list>  <!-- spring配置文件路径 -->   <context-param>      <param-name>contextConfigLocation</param-name>      <param-value>/WEB-INF/classes/applicationContext*.xml</param-value>   </context-param>    <!-- spring监听器 -->   <listener>      <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>   </listener>    <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></web-app>

6. 编写实体类、DAO类、Service类以及Action

【User.java】

@Entity@Table(name="user")public class User {@Id@GeneratedValue(strategy = GenerationType.IDENTITY)@Column(name="userid")private Integer userId;@Column(name="username")private String userName;@Column(name="password")private String passWord;@Column(name="birthday")private Date birthday;@Column(name="age")private Integer age;@Column(name="sex")private String sex;               getters setters......}

【BaseDao.java】

public class BaseDao<T> {@Resource(name = "sessionFactory")    protected SessionFactory sessionFactory;    protected Class<?> entityClass;public BaseDao(){ParameterizedType type = (ParameterizedType)this.getClass().getGenericSuperclass();entityClass = (Class<?>)type.getActualTypeArguments()[0];}    protected Session getSession()    {    return sessionFactory.getCurrentSession();    }        public Serializable save(T t){    return getSession().save(t);    }}

【UserDao.java】

@Repository("userDao")public class UserDao extends BaseDao<User>{@SuppressWarnings("unchecked")public User checkUser(User user){String hql = "from User where userId = :id and password = :password";Query query = getSession().createQuery(hql).setParameter("id", user.getUserId()).setParameter("password", user.getPassWord());List<User> userList = (List<User>)query.list();if(userList != null && userList.size() > 0){System.out.println("wocao");return userList.get(0);}return null;}}

【UserService.java】

@Service("userService")public class UserService {@Resourceprivate UserDao userDao;public Serializable save(User user){return userDao.save(user);}@Transactional(readOnly = true, rollbackFor = Exception.class)public User checkUser(User user){return userDao.checkUser(user);}}

【LoginAction.java】

@Controller("loginAction")@Scope("prototype")@Namespace("")@ParentPackage("struts-default")public class LoginAction extends ActionSupport implements SessionAware{private static final long serialVersionUID = 6473585621724667329L;@Resource(name = "userService")private UserService userService;private Map<String, Object> session;private String id;private String password;@Action(value="login",results ={@Result(name = "success", location = "/main.jsp"),@Result(name = "error", location = "/login.jsp")})public String login(){User user = (User)session.get("user");if(user == null){user = new User();user.setUserId(Integer.parseInt(id));user.setPassWord(password);}user = userService.checkUser(user);if(user == null){return "error";}else {session.put("user", user);return "success";}}public String getId() {return id;}public void setId(String id) {this.id = id;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}@Overridepublic void setSession(Map<String, Object> session) {this.session = session;}}

7. 测试页面

【login.java】

<body>    <form action="login.action" method="post"><label>姓名：</label><input name="id" type="text" value="" /><label>密碼：</label><input name="password" type="password" value="" /><input type="submit" value="登陆" />    </form></body>

【main.java】

<body>    <label>姓名: ${sessionScope.user.userName}</label>    <label>出生日期 : ${sessionScope.user.birthday}</label>    <label id="skill">展示技能</label></body>

至此，基于注解方式的SSH框架搭建完成~

1 0