SSH说的上是javaweb经典框架，不能说100%要会SSH框架，但是大部分公司都在用，说到框架，都会提到ssh吧，这次就以很简单的注册例子来整合SSH框架。整合框架要注意的是先每个框架单独测通后再整合，不然整合后出现问题比较难排查。
环境：windows + MyEclipse + JDK1.7 + Tomcat7 + MySQL
代码已经测通，如果有报错可能是我某些地方没描述清楚，请留言。
注意:javassist-3.18.1-GA.jar包与hibernate中的重复（只保留高版本即可）
注意:这个包一旦导入,那么struts2在启动时就会寻找spring容器.找不到将会抛出异常
core | beans | context | expression | logging | log4j
spring-web
spring-aop | spring-aspect | aop联盟 | aopweaving
spring-jdbc | spring-tx | c3p0 | spring-orm
spring-test
standard.jar | jstl-1.2.jar
<?xml version="1.0" encoding="UTF-8"?><beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/context/spring-context-4.2.xsd
http://www.springframework.org/schema/aop/spring-aop-4.2.xsd
http://www.springframework.org/schema/tx/spring-tx-4.2.xsd "><bean name="userAction" class="cn.xyp.web.action.UserAction"></bean></beans><!-- 让spring随web启动而创建的监听器 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 配置spring配置文件位置参数 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param>
<?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><package name="crm" namespace="/" extends="struts-default"><action name="UserAction_*" class="cn.xyp.web.action.UserAction" method="{1}"><result name="success">/success.jsp</result></action></package></struts><!-- struts2核心过滤器 --> <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>
struts2-spring-plugin-2.3.24.jar
查看默认配置文件从31行开始找到要配置的变量。
### 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
添加常量到struts.xml
<!-- # 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--><constant name="struts.objectFactory" value="spring"></constant> <!-- 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 --><action name="UserAction_*" class="cn.xyp.web.action.UserAction" method="{1}" ><result name="toHome" type="redirect" >/index.htm</result><result name="error" >/login.jsp</result></action>不推荐理由:最好由spring完整管理action的生命周期.spring中功能才应用到Action上.
applicationContext.xml：
<!-- action --><!-- 注意:Action对象作用范围一定是多例的.这样才符合struts2架构 --><bean name="userAction" class="cn.itcast.web.action.UserAction" scope="prototype" ><property name="userService" ref="userService" ></property></bean>
struts.xml：
<!--
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 --><action name="UserAction_*" class="userAction" method="{1}" ><result name="toHome" type="redirect" >/index.htm</result><result name="error" >/login.jsp</result></action>
举例：User.java
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;
}
@Overridepublic String toString() {return "User [user_id=" + user_id + ", user_code=" + user_code + ", user_name=" + user_name + ", user_password="
+ user_password + "]";
}
}User.hbm.xml：
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"><hibernate-mapping package="cn.xyp.domain" ><class name="User" table="sys_user" ><id name="user_id" ><generator class="native"></generator></id><property name="user_code" ></property><property name="user_name" ></property><property name="user_password" ></property><property name="user_state" ></property></class></hibernate-mapping><?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>
<!-- 数据库驱动 --><property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property> <!-- 数据库url --><property name="hibernate.connection.url">jdbc:mysql:///crm_32</property> <!-- 数据库连接用户名 --><property name="hibernate.connection.username">root</property> <!-- 数据库连接密码 --><property name="hibernate.connection.password">1234</property><!-- 数据库方言
注意: MYSQL在选择方言时,请选择最短的方言. --><property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- 将hibernate生成的sql语句打印到控制台 --><property name="hibernate.show_sql">true</property><!-- 将hibernate生成的sql语句格式化(语法缩进) --><property name="hibernate.format_sql">true</property><!--
自动导出表结构. 自动建表 --><property name="hibernate.hbm2ddl.auto">update</property>
<!-- 引入实体配置文件 --><mapping resource="cn/xyp/domain/Customer.hbm.xml" /><mapping resource="cn/xypt/domain/LinkMan.hbm.xml" /><mapping resource="cn/xyp/domain/User.hbm.xml" /></session-factory></hibernate-configuration>
将sessionFactory对象交给spring容器管理
<!-- 加载配置方案1:仍然使用外部的hibernate.cfg.xml配置信息 --><bean name="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean" ><property name="configLocation" value="classpath:hibernate.cfg.xml" ></property></bean>
<!-- 加载配置方案2:在spring配置中放置hibernate配置信息 --><bean name="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean" ><!-- 将连接池注入到sessionFactory, hibernate会通过连接池获得连接 --><property name="dataSource" ref="dataSource" ></property><!-- 配置hibernate基本信息 --><property name="hibernateProperties"><props><!-- 必选配置 --><prop key="hibernate.connection.driver_class" >com.mysql.jdbc.Driver</prop><prop key="hibernate.connection.url" >jdbc:mysql:///crm_32</prop><prop key="hibernate.connection.username" >root</prop><prop key="hibernate.connection.password" >1234</prop> <prop key="hibernate.dialect" >org.hibernate.dialect.MySQLDialect</prop><!-- 可选配置 --><prop key="hibernate.show_sql" >true</prop><prop key="hibernate.format_sql" >true</prop><prop key="hibernate.hbm2ddl.auto" >update</prop></props></property><!-- 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 --><property name="mappingDirectoryLocations" value="classpath:cn/itcast/domain" ></property></bean>
jdbc.jdbcUrl=jdbc:mysql:///xyp_crm jdbc.driverClass=com.mysql.jdbc.Driver jdbc.user=root jdbc.password=123456
<!-- 读取db.properties文件 --><context:property-placeholder location="classpath:db.properties" /><!-- 配置c3p0连接池 --><bean name="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" ><property name="jdbcUrl" value="${jdbc.jdbcUrl}" ></property><property name="driverClass" value="${jdbc.driverClass}" ></property><property name="user" value="${jdbc.user}" ></property><property name="password" value="${jdbc.password}" ></property></bean><bean name="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean" ><!-- 将连接池注入到sessionFactory, hibernate会通过连接池获得连接 --><property name="dataSource" ref="dataSource" ></property>
注意：项目中要确保使用统一版本。
//HibernateDaoSupport 为dao注入sessionFactorypublic class UserDaoImpl extends HibernateDaoSupport implements UserDao { @Overridepublic User getByUserCode(final String usercode) {//HQLreturn getHibernateTemplate().execute(new HibernateCallback<User>() {
@Overridepublic 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;
}
}); //CriteriaDetachedCriteria dc = DetachedCriteria.forClass(User.class);
dc.add(Restrictions.eq("user_code", usercode));
List<User> list = (List<User>) getHibernateTemplate().findByCriteria(dc); if(list != null && list.size()>0){return list.get(0);
}else{return null;
}<!-- Dao --><bean name="userDao" class="cn.xyp.dao.impl.UserDaoImpl" ><!-- 注入sessionFactory --><property name="sessionFactory" ref="sessionFactory"></property></bean>
<!-- 核心事务管理器 --><bean name="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager" ><property name="sessionFactory" ref="sessionFactory" ></property></bean>
<!-- 配置通知 --><tx:advice id="txAdvice" transaction-manager="transactionManager" > <tx:attributes><tx:method name="save*" isolation="REPEATABLE_READ" propagation="REQUIRED" read-only="false" /> <tx:method name="persist*" isolation="REPEATABLE_READ" propagation="REQUIRED" read-only="false" /> <tx:method name="update*" isolation="REPEATABLE_READ" propagation="REQUIRED" read-only="false" /> <tx:method name="modify*" isolation="REPEATABLE_READ" propagation="REQUIRED" read-only="false" /> <tx:method name="delete*" isolation="REPEATABLE_READ" propagation="REQUIRED" read-only="false" /> <tx:method name="remove*" isolation="REPEATABLE_READ" propagation="REQUIRED" read-only="false" /> <tx:method name="get*" isolation="REPEATABLE_READ" propagation="REQUIRED" read-only="true" /> <tx:method name="find*" isolation="REPEATABLE_READ" propagation="REQUIRED" read-only="true" /> </tx:attributes> </tx:advice>
<!-- 配置将通知织入目标对象
配置切点
配置切面 --><aop:config>
<aop:pointcut expression="execution(* cn.itcast.service.impl.*ServiceImpl.*(..))" id="txPc"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="txPc" />
</aop:config><!-- 开启注解事务 --><tx:annotation-driven transaction-manager="transactionManager" />
@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);
}
为了避免使用懒加载时出现no-session问题.需要扩大session的作用范围。
<!-- 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 -->
<filter> <filter-name>openSessionInView</filter-name> <filter-class>org.springframework.orm.hibernate5.support.OpenSessionInViewFilter</filter-class>
</filter>
<filter-mapping> <filter-name>openSessionInView</filter-name> <url-pattern>/*</url-pattern>
</filter-mapping>
<struts><!-- # 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--><constant name="struts.objectFactory" value="spring"></constant><package name="crm" namespace="/" extends="struts-default" ><global-exception-mappings><exception-mapping result="error" exception="java.lang.RuntimeException"></exception-mapping></global-exception-mappings> <!--
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 --><action name="UserAction_*" class="userAction" method="{1}" ><result name="toHome" type="redirect" >/index.htm</result><result name="error" >/login.jsp</result></action></package></struts>public class UserAction extends ActionSupport implements ModelDriven<User> {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";
}
@Overridepublic 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) {
//CriteriaDetachedCriteria dc = DetachedCriteria.forClass(User.class);
dc.add(Restrictions.eq("user_code", usercode));
List<User> list = (List<User>) getHibernateTemplate().findByCriteria(dc); if(list != null && list.size()>0){return list.get(0);
}else{return null;
}
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