SSH 整合实例

1、创建 Javaweb 项目

2、导入 SSH 所需 jar 包

3、配置 web.xml 文件

<?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>SSH</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>

4、配置 applicationContext.xml 文件

<?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="root"></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>  

5、配置  hibernate.cfg.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>

6、配置 Struts.xml 文件

<?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.java1234.action.UserAction">    <result name="success">/success.jsp</result>    <result name="error">/index.jsp</result>    </action>    </package>      </struts>

7、创建 user 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;}}

8、DAO 层

package com.java.dao;import java.io.Serializable;import java.util.List;/** * 基础数据库操作类 *  * @author www.java1234.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);}

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;}@Autowiredpublic 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();}}

9、service 层

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);}

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{@Resourceprivate BaseDao<User> baseDao;@Overridepublic void saveUser(User user) {// TODO Auto-generated method stubbaseDao.save(user);}@Overridepublic void updateUser(User user) {// TODO Auto-generated method stubbaseDao.update(user);}@Overridepublic User findUserById(int id) {return baseDao.get(User.class, id);}@Overridepublic void deleteUser(User user) {baseDao.delete(user);}@Overridepublic List<User> findAllList() {return baseDao.find("from User");}@Overridepublic User findUserByNameAndPassword(User user) {return baseDao.get("from User u where u.userName=? and u.password=?", new Object[]{user.getUserName(),user.getPassword()});}}

10、controller 层

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;@Controllerpublic class UserAction extends ActionSupport implements ServletRequestAware{private static final long serialVersionUID = 1L;private HttpServletRequest request;@Resourceprivate 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;}}@Overridepublic void setServletRequest(HttpServletRequest request) {// TODO Auto-generated method stubthis.request=request;}}

11、JSP 页面

<%@ 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>

<%@ 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>欢迎：${currentUser.userName }</body></html>

到此结束啦~~