详解JAVAEE――SSH三大框架整合（spring+struts2+hibernate）

 <!-- 让spring随web启动而创建的监听器 --> org.springframework.web.context.ContextLoaderListener<!-- 配置spring配置文件位置参数 --> contextConfigLocationclasspath:applicationContext.xml

     /success.jsp

 <!-- struts2核心过滤器 --> struts2org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter struts2/*

 ### if specified, the default object factory can be overridden here ### Note: short-hand notation is supported in some cases, such as "spring" ###    Alternatively, you can provide a com.opensymphony.xwork2.ObjectFactory subclass name here # struts.objectFactory = spring ### specifies the autoWiring logic when using the SpringObjectFactory. ### valid values are: name, type, auto, and constructor (name is the default) struts.objectFactory.spring.autoWire = name 

 <!-- # struts.objectFactory = spring  将action的创建交给spring容器 struts.objectFactory.spring.autoWire = name spring负责装配Action依赖属性 -->

 <!-- 整合方案1:class属性上仍然配置action的完整类名 struts2仍然创建action,由spring负责组装Action中的依赖属性 --> /index.htm/login.jsp

 <!-- action --><!-- 注意:Action对象作用范围一定是多例的.这样才符合struts2架构 --> 

 <!-- 整合方案2:class属性上填写spring中action对象的BeanName 完全由spring管理action生命周期,包括Action的创建 注意:需要手动组装依赖属性 --> /index.htm/login.jsp

 package cn.xyp.web.domain; import java.util.HashSet; import java.util.Set; public class User { private Long user_id; private String user_code; private String user_name; private String user_password; private Character user_state; public Long getUser_id() { return user_id; } public void setUser_id(Long user_id) { this.user_id = user_id; } public String getUser_code() { return user_code; } public void setUser_code(String user_code) { this.user_code = user_code; } public String getUser_name() { return user_name; } public void setUser_name(String user_name) { this.user_name = user_name; } public String getUser_password() { return user_password; } public void setUser_password(String user_password) { this.user_password = user_password; } public Character getUser_state() { return user_state; } public void setUser_state(Character user_state) { this.user_state = user_state; } @Override public String toString() { return "User [user_id=" + user_id + ", user_code=" + user_code + ", user_name=" + user_name + ", user_password=" + user_password + "]"; } } 

    <!-- 数据库驱动 -->com.mysql.jdbc.Driver<!-- 数据库url -->jdbc:mysql:///crm_32<!-- 数据库连接用户名 -->root<!-- 数据库连接密码 -->1234<!-- 数据库方言 注意: MYSQL在选择方言时,请选择最短的方言. -->org.hibernate.dialect.MySQLDialect<!-- 将hibernate生成的sql语句打印到控制台 -->true<!-- 将hibernate生成的sql语句格式化(语法缩进) -->true<!-- 自动导出表结构. 自动建表 -->update<!-- 引入实体配置文件 -->

 <!-- 加载配置方案1:仍然使用外部的hibernate.cfg.xml配置信息 --> 

 <!-- 加载配置方案2:在spring配置中放置hibernate配置信息 --> <!-- 将连接池注入到sessionFactory, hibernate会通过连接池获得连接 --><!-- 配置hibernate基本信息 -->  <!-- 必选配置 -->com.mysql.jdbc.Driverjdbc:mysql:///crm_32root1234org.hibernate.dialect.MySQLDialect<!-- 可选配置 -->truetrueupdate<!-- 引入orm元数据,指定orm元数据所在的包路径,spring会自动读取包中的所有配置 -->

 jdbc.jdbcUrl=jdbc:mysql:///xyp_crm jdbc.driverClass=com.mysql.jdbc.Driver jdbc.user=root jdbc.password=123456

 <!-- 读取db.properties文件 --><!-- 配置c3p0连接池 --> 

  <!-- 将连接池注入到sessionFactory, hibernate会通过连接池获得连接 -->

 //HibernateDaoSupport 为dao注入sessionFactory public class UserDaoImpl extends HibernateDaoSupport implements UserDao {

 @Override public User getByUserCode(final String usercode) { //HQL return getHibernateTemplate().execute(new HibernateCallback() { @Override public User doInHibernate(Session session) throws HibernateException { String hql = "from User where user_code = ? "; Query query = session.createQuery(hql); query.setParameter(0, usercode); User user = (User) query.uniqueResult(); return user; } }); 

 //Criteria DetachedCriteria dc = DetachedCriteria.forClass(User.class); dc.add(Restrictions.eq("user_code", usercode)); List list = (List) getHibernateTemplate().findByCriteria(dc); if(list != null && list.size()>0){ return list.get(0); }else{ return null; } 

 <!-- Dao --> <!-- 注入sessionFactory -->

 <!-- 核心事务管理器 --> 

 <!-- 配置通知 -->  

 <!-- 配置将通知织入目标对象 配置切点 配置切面 --> 

 <!-- 开启注解事务 -->

 @Transactional(isolation=Isolation.REPEATABLE_READ,propagation=Propagation.REQUIRED,readOnly=true) public class UserServiceImpl implements UserService{

 @Override @Transactional(isolation=Isolation.REPEATABLE_READ,propagation=Propagation.REQUIRED,readOnly=false) public void saveUser(User u) { ud.save(u); }

 <!-- 扩大session作用范围 注意: 任何filter一定要在struts的filter之前调用 因为struts是不会放行的 --> openSessionInVieworg.springframework.orm.hibernate5.support.OpenSessionInViewFilter openSessionInView/*

 <em style="color:transparent">来源[email protected]搞@^&代*@码)网</em> <!-- # struts.objectFactory = spring  将action的创建交给spring容器 struts.objectFactory.spring.autoWire = name spring负责装配Action依赖属性 -->  <!-- 整合方案:class属性上填写spring中action对象的BeanName 完全由spring管理action生命周期,包括Action的创建 注意:需要手动组装依赖属性 --> /index.htm/login.jsp

 public class UserAction extends ActionSupport implements ModelDriven { private User user = new User(); private UserService userService ; public void setUserService(UserService userService) { this.userService = userService; } public String login() throws Exception { //1 调用Service执行登陆逻辑 User u = userService.getUserByCodePassword(user); //2 将返回的User对象放入session域 ActionContext.getContext().getSession().put("user", u); //3 重定向到项目首页 return "toHome"; } @Override public User getModel() { return user; } } 

 public User getUserByCodePassword(User u) { // 1 根据登陆名称查询登陆用户 User existU = ud.getByUserCode(u.getUser_code()); // 2 判断用户是否存在.不存在=>抛出异常,提示用户名不存在 if (existU == null) { throw new RuntimeException("用户名不存在!"); } // 3 判断用户密码是否正确=>不正确=>抛出异常,提示密码错误 if (!existU.getUser_password().equals(u.getUser_password())) { throw new RuntimeException("密码错误!"); } // 4 返回查询到的用户对象 return existU; } 

 public User getByUserCode(final String usercode) { //Criteria DetachedCriteria dc = DetachedCriteria.forClass(User.class); dc.add(Restrictions.eq("user_code", usercode)); List list = (List) getHibernateTemplate().findByCriteria(dc); if(list != null && list.size()>0){ return list.get(0); }else{ return null; } }