搭建基于注解方式的SSH项目框架
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)
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>
【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>
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/test driverClassName=com.mysql.jdbc.Driver username=root password=centerm initialSize=10 minIdle=5 maxActive=50 maxWait=60000 timeBetweenEvictionRunsMillis=60000 minEvictableIdleTimeMillis=300000 poolPreparedStatements=true maxPoolPreparedStatementPerConnectionSize=100 validationQuery=SELECT'x' testWhileIdle=true testOnBorrow=false testOnReturn=false maxOpenPreparedStatements=20 removeAbandoned=false removeAbandonedTimeout=1800 logAbandoned=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>
【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 { @Resource private 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; } @Override public void setSession(Map<String, Object> session) { this.session = session; } }
【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~