添加架包:
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_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>S2SH</display-name> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <!-- 添加对spring的支持 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <!-- 定义Spring监听器,加载Spring --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 添加对struts2的支持 --> <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> <!-- Session延迟加载到页面 --> <filter> <filter-name>openSessionInViewFilter</filter-name> <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class> <init-param> <param-name>singleSession</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>openSessionInViewFilter</filter-name> <url-pattern>*.action</url-pattern> </filter-mapping> </web-app>
配置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:p="http://www.springframework.org/schema/p" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd"> <!-- 定义数据源 --> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="com.mysql.jdbc.Driver"> </property> <property name="url" value="jdbc:mysql://localhost:3306/test"> </property> <property name="username" value="root"></property> <property name="password" value="123456"></property> </bean> <!-- session工厂 --> <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"> <property name="dataSource"> <ref bean="dataSource" /> </property> <property name="configLocation" value="classpath:hibernate.cfg.xml"/> <!-- 自动扫描注解方式配置的hibernate类文件 --> <property name="packagesToScan"> <list> <value>com.java.entity</value> </list> </property> </bean> <!-- 配置事务管理器 --> <bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory" /> </bean> <!-- 配置事务通知属性 --> <tx:advice id="txAdvice" transaction-manager="transactionManager"> <!-- 定义事务传播属性 --> <tx:attributes> <tx:method name="insert*" propagation="REQUIRED" /> <tx:method name="update*" propagation="REQUIRED" /> <tx:method name="edit*" propagation="REQUIRED" /> <tx:method name="save*" propagation="REQUIRED" /> <tx:method name="add*" propagation="REQUIRED" /> <tx:method name="new*" propagation="REQUIRED" /> <tx:method name="set*" propagation="REQUIRED" /> <tx:method name="remove*" propagation="REQUIRED" /> <tx:method name="delete*" propagation="REQUIRED" /> <tx:method name="change*" propagation="REQUIRED" /> <tx:method name="get*" propagation="REQUIRED" read-only="true" /> <tx:method name="find*" propagation="REQUIRED" read-only="true" /> <tx:method name="load*" propagation="REQUIRED" read-only="true" /> <tx:method name="*" propagation="REQUIRED" read-only="true" /> </tx:attributes> </tx:advice> <!-- 配置事务切面 --> <aop:config> <aop:pointcut id="serviceOperation" expression="execution(* com.java.service..*.*(..))" /> <aop:advisor advice-ref="txAdvice" pointcut-ref="serviceOperation" /> </aop:config> <!-- 自动加载构建bean --> <context:component-scan base-package="com.java" /> </beans>
配置struts.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd"> <struts> <constant name="struts.action.extension" value="action" /> <package name="s2sh" namespace="/user" extends="struts-default"> <action name="user_*" method="{1}" class="com.java.action.UserAction"> <result name="success">/success.jsp</result> <result name="error">/index.jsp</result> </action> </package> </struts>
p配置hibernate.xml
<?xml version='1.0' encoding='UTF-8'?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <!--方言--> <property name="dialect">org.hibernate.dialect.MySQL5Dialect</property> <!-- 显示sql语句 --> <property name="show_sql">true</property> <!-- 自动更新 --> <property name="hbm2ddl.auto">update</property> </session-factory> </hibernate-configuration>
实体
package com.java.entity; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.Id; import javax.persistence.Table; import org.hibernate.annotations.GenericGenerator; @Entity @Table(name="t_user") public class User { private Integer id; private String userName; private String password; @Id @GenericGenerator(name = "generator", strategy = "native") @GeneratedValue(generator = "generator") @Column(name = "id", length=11) public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } @Column(name = "userName", length = 20) public String getUserName() { return userName; } public void setUserName(String userName) { this.userName = userName; } @Column(name = "password", length = 20) public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } }
dao层
package com.java.dao; import java.io.Serializable; import java.util.List; /** * 基础数据库操作类 * * @author www.java.com * */ public interface BaseDao<T> { /** * 保存一个对象 * * @param o * @return */ public Serializable save(T o); /** * 删除一个对象 * * @param o */ public void delete(T o); /** * 更新一个对象 * * @param o */ public void update(T o); /** * 保存或更新对象 * * @param o */ public void saveOrUpdate(T o); /** * 查询 * * @param hql * @return */ public List<T> find(String hql); /** * 查询集合 * * @param hql * @param param * @return */ public List<T> find(String hql, Object[] param); /** * 查询集合 * * @param hql * @param param * @return */ public List<T> find(String hql, List<Object> param); /** * 查询集合(带分页) * * @param hql * @param param * @param page * 查询第几页 * @param rows * 每页显示几条记录 * @return */ public List<T> find(String hql, Object[] param, Integer page, Integer rows); /** * 查询集合(带分页) * * @param hql * @param param * @param page * @param rows * @return */ public List<T> find(String hql, List<Object> param, Integer page, Integer rows); /** * 获得一个对象 * * @param c * 对象类型 * @param id * @return Object */ public T get(Class<T> c, Serializable id); /** * 获得一个对象 * * @param hql * @param param * @return Object */ public T get(String hql, Object[] param); /** * 获得一个对象 * * @param hql * @param param * @return */ public T get(String hql, List<Object> param); /** * select count(*) from 类 * * @param hql * @return */ public Long count(String hql); /** * select count(*) from 类 * * @param hql * @param param * @return */ public Long count(String hql, Object[] param); /** * select count(*) from 类 * * @param hql * @param param * @return */ public Long count(String hql, List<Object> param); /** * 执行HQL语句 * * @param hql * @return 响应数目 */ public Integer executeHql(String hql); /** * 执行HQL语句 * * @param hql * @param param * @return 响应数目 */ public Integer executeHql(String hql, Object[] param); /** * 执行HQL语句 * * @param hql * @param param * @return */ public Integer executeHql(String hql, List<Object> param); }
实现:
package com.java.dao.impl; import java.io.Serializable; import java.util.List; import org.hibernate.Query; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Repository; import com.java.dao.BaseDao; @Repository("baseDao") @SuppressWarnings("all") public class BaseDaOImpl<T> implements BaseDao<T> { private SessionFactory sessionFactory; public SessionFactory getSessionFactory() { return sessionFactory; } @Autowired public void setSessionFactory(SessionFactory sessionFactory) { this.sessionFactory = sessionFactory; } private Session getCurrentSession() { return sessionFactory.getCurrentSession(); } public Serializable save(T o) { return this.getCurrentSession().save(o); } public void delete(T o) { this.getCurrentSession().delete(o); } public void update(T o) { this.getCurrentSession().update(o); } public void saveOrUpdate(T o) { this.getCurrentSession().saveOrUpdate(o); } public List<T> find(String hql) { return this.getCurrentSession().createQuery(hql).list(); } public List<T> find(String hql, Object[] param) { Query q = this.getCurrentSession().createQuery(hql); if (param != null && param.length > 0) { for (int i = 0; i < param.length; i++) { q.setParameter(i, param[i]); } } return q.list(); } public List<T> find(String hql, List<Object> param) { Query q = this.getCurrentSession().createQuery(hql); if (param != null && param.size() > 0) { for (int i = 0; i < param.size(); i++) { q.setParameter(i, param.get(i)); } } return q.list(); } public List<T> find(String hql, Object[] param, Integer page, Integer rows) { if (page == null || page < 1) { page = 1; } if (rows == null || rows < 1) { rows = 10; } Query q = this.getCurrentSession().createQuery(hql); if (param != null && param.length > 0) { for (int i = 0; i < param.length; i++) { q.setParameter(i, param[i]); } } return q.setFirstResult((page - 1) * rows).setMaxResults(rows).list(); } public List<T> find(String hql, List<Object> param, Integer page, Integer rows) { if (page == null || page < 1) { page = 1; } if (rows == null || rows < 1) { rows = 10; } Query q = this.getCurrentSession().createQuery(hql); if (param != null && param.size() > 0) { for (int i = 0; i < param.size(); i++) { q.setParameter(i, param.get(i)); } } return q.setFirstResult((page - 1) * rows).setMaxResults(rows).list(); } public T get(Class<T> c, Serializable id) { return (T) this.getCurrentSession().get(c, id); } public T get(String hql, Object[] param) { List<T> l = this.find(hql, param); if (l != null && l.size() > 0) { return l.get(0); } else { return null; } } public T get(String hql, List<Object> param) { List<T> l = this.find(hql, param); if (l != null && l.size() > 0) { return l.get(0); } else { return null; } } public Long count(String hql) { return (Long) this.getCurrentSession().createQuery(hql).uniqueResult(); } public Long count(String hql, Object[] param) { Query q = this.getCurrentSession().createQuery(hql); if (param != null && param.length > 0) { for (int i = 0; i < param.length; i++) { q.setParameter(i, param[i]); } } return (Long) q.uniqueResult(); } public Long count(String hql, List<Object> param) { Query q = this.getCurrentSession().createQuery(hql); if (param != null && param.size() > 0) { for (int i = 0; i < param.size(); i++) { q.setParameter(i, param.get(i)); } } return (Long) q.uniqueResult(); } public Integer executeHql(String hql) { return this.getCurrentSession().createQuery(hql).executeUpdate(); } public Integer executeHql(String hql, Object[] param) { Query q = this.getCurrentSession().createQuery(hql); if (param != null && param.length > 0) { for (int i = 0; i < param.length; i++) { q.setParameter(i, param[i]); } } return q.executeUpdate(); } public Integer executeHql(String hql, List<Object> param) { Query q = this.getCurrentSession().createQuery(hql); if (param != null && param.size() > 0) { for (int i = 0; i < param.size(); i++) { q.setParameter(i, param.get(i)); } } return q.executeUpdate(); } }
service接口
package com.java.service; import java.util.List; import com.java.entity.User; public interface UserService { public void saveUser(User user); public void updateUser(User user); public User findUserById(int id); public void deleteUser(User user); public List<User> findAllList(); public User findUserByNameAndPassword(User user); }
实现:
package com.java.service.impl; import java.util.List; import javax.annotation.Resource; import org.springframework.stereotype.Service; import com.java.dao.BaseDao; import com.java.entity.User; import com.java.service.UserService; @Service("userService") public class UserServiceImpl implements UserService{ @Resource private BaseDao<User> baseDao; @Override public void saveUser(User user) { // TODO Auto-generated method stub baseDao.save(user); } @Override public void updateUser(User user) { // TODO Auto-generated method stub baseDao.update(user); } @Override public User findUserById(int id) { return baseDao.get(User.class, id); } @Override public void deleteUser(User user) { baseDao.delete(user); } @Override public List<User> findAllList() { return baseDao.find("from User"); } @Override public User findUserByNameAndPassword(User user) { return baseDao.get("from User u where u.userName=? and u.password=?", new Object[]{user.getUserName(),user.getPassword()}); } }
控制器:
package com.java.action; import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpSession; import org.apache.struts2.interceptor.ServletRequestAware; import org.springframework.stereotype.Controller; import com.java.entity.User; import com.java.service.UserService; import com.opensymphony.xwork2.ActionSupport; @Controller public class UserAction extends ActionSupport implements ServletRequestAware{ /** * */ private static final long serialVersionUID = 1L; private HttpServletRequest request; @Resource private UserService userService; private User user; private String error; public User getUser() { return user; } public void setUser(User user) { this.user = user; } public String getError() { return error; } public void setError(String error) { this.error = error; } public String login()throws Exception{ HttpSession session=request.getSession(); User currentUser=userService.findUserByNameAndPassword(user); if(currentUser!=null){ session.setAttribute("currentUser", currentUser); return SUCCESS; }else{ error="用后名或者密码错误!"; return ERROR; } } @Override public void setServletRequest(HttpServletRequest request) { // TODO Auto-generated method stub this.request=request; } }
前台index.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <form action="${pageContext.request.contextPath }/user/user_login.action" method="post"> userName:<input type="text" name="user.userName" value="${user.userName }"/><br/> password:<input type="password" name="user.password" value="${user.password }"><br/> <input type="submit" value="login"/><font color="red">${error }</font> </form> </body> </html>