SSH框架：Struts2-2.3.7+Spring4.2+Hibernate5.4

你的名字 2023-10-18 20:47 19阅读 0赞

## 完整MyEclipse搭建SSH框架，教程+源码 ##

完整工程下载地址：[SSH][]

## 准备工作，jar包 ##

1.  **Struts2下载** ：[官网点这里][Link 1]；  
    最新版本为2.5，这里用2.3

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70]

1.  **Spring下载** ：[官网点这里][Link 2]；  
    根据自己版本选择下载：  
    具体教程可见另一篇：https://blog.csdn.net/weixin\_42176639/article/details/94360648  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70 1]![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70 2]
2.  **Hibernate** ：[hibernate官网][hibernate]；  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70 3]![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70 4]4. **搭建SSH所需的jar包** ，图中文件包括数据库驱动包，druid数据库连接池，ajax包：  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70 5]![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70 6]![在这里插入图片描述][20190630235146519.png]  
    5.**工程目录结构**：  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70 7]  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjE3NjYzOQ_size_16_color_FFFFFF_t_70 8]

### 6.配置文件说明 ###

*  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-4.2.xsd  
                http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd  
                http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd
                http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.2.xsd  
                http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd">
        
          
       	
    	
    	  
       	<context:property-placeholder location="classpath:druid_db.properties"/>  
    	<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
    	    
    	    
    	    
    		
    		
    		<property name="driverClassName" value="${jdbc.driverClass}"/>
    		<property name="url" value="${jdbc.jdbcUrl}"/>
    		<property name="username" value="${jdbc.user}"/>
    		<property name="password" value="${jdbc.password}"/>
    		 
    		<property name="filters" value="stat" />	
    		
    		 
    		<property name="initialSize" value="2" /> 
    		<property name="minIdle" value="1" /> 
    		<property name="maxActive" value="20" />
    		
    		 
    		<property name="maxWait" value="60000" />
    		
    		 
    		<property name="timeBetweenEvictionRunsMillis" value="60000" />
    		
    		 
    		<property name="minEvictableIdleTimeMillis" value="300000" />
    		
            
    		<property name="validationQuery" value="select 1" /> 
    		<property name="testWhileIdle" value="true" /> 
    		<property name="testOnBorrow" value="false" /> 
    		<property name="testOnReturn" value="false" />
    		
    		  
            <property name = "removeAbandoned" value = "true" />  
              
            <property name = "removeAbandonedTimeout" value ="1800" /> 
    		
    		 
    		 
    		<property name="poolPreparedStatements" value="false" /> 
    		<property name="maxPoolPreparedStatementPerConnectionSize" value="20" />
    		
    		<property name="keepAlive" value="true" />
    		
    	</bean>
    	
    	<bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean" scope="prototype">
        
    		
    		<property name="dataSource" ref="dataSource"></property>
    		  
    		<property name="configLocation" value="classpath:hibernate.cfg.xml"></property>
    		
        </bean>
        
    	<bean id="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">
    		<property name="sessionFactory" ref="sessionFactory" ></property>
    	</bean>
    	
    	
    	
    	
    	
    	
    	<bean id="log_d" class="com.demo.daoImpl.LogDaoImpl">
    		<property name="sessionFactory" ref="sessionFactory"></property>
    	</bean>
    	<bean id="log_s" class="com.demo.serviceImpl.LogServiceImpl">
    		<property name="dao" ref="log_d"></property>
    	</bean>
    	<bean id="log_a" class="com.demo.action.LogAction" scope="prototype">
    		<property name="service" ref="log_s"></property>
    	</bean>
    	
    	
    	
    	<bean id="user_d" class="com.demo.daoImpl.UserDaoImpl">
    		<property name="sessionFactory" ref="sessionFactory"></property>
    	</bean>
    	<bean id="user_s" class="com.demo.serviceImpl.UserServiceImpl">
    		<property name="dao" ref="user_d"></property>
    	</bean>
    	<bean id="user_a" class="com.demo.action.UserAction" scope="prototype">
    		<property name="service" ref="user_s"></property>
    	</bean>
    	
        
        
        
        <tx:annotation-driven />	
    	
        <tx:advice id="txAdvice" transaction-manager="transactionManager">
    
            <tx:attributes>
                <tx:method name="find*" read-only="true" />
                <tx:method name="get*"  read-only="true" />
                <tx:method name="add*" propagation="REQUIRED" />
                <tx:method name="update*" propagation="REQUIRED" />
                <tx:method name="delete*" propagation="REQUIRED" />
                <tx:method name="save*" propagation="REQUIRED" />
                <tx:method name="test*" propagation="REQUIRED" />
                <tx:method name="*Transaction" propagation="REQUIRED" />
                <tx:method name="*" propagation="REQUIRED" />
            </tx:attributes>
        </tx:advice>
        
        <aop:config expose-proxy="true"> 
            <aop:pointcut expression="execution(* com.demo.serviceImpl.*.*(..))" id="txPointcut"/>
            
            <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointcut" />
        </aop:config>
    
    </beans>

*  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>
    		
    		
    		<property name="connection.driver_class">
    			com.microsoft.sqlserver.jdbc.SQLServerDriver
    		</property>
    		<property name="connection.url">
    			jdbc:sqlserver://127.0.0.1:1433;DatabaseName=Test_SSH
    		</property>
    		<property name="connection.username">sa</property>
    		<property name="connection.password">654321</property>
    		<property name="connection.characterEncoding">UTF-8</property>
    		
    		
    
    
    
    		<property name="hibernate.current_session_context_class">
    			org.springframework.orm.hibernate5.SpringSessionContext
    		</property>
    		
    		
    		<property name="dialect">
    			org.hibernate.dialect.SQLServerDialect
    		</property>
    
    		
    		<property name="show_sql">false</property>
    		
    		<property name="format_sql">true</property>
    		
    		<property name="hbm2ddl.auto">update</property>
    
    
    		
    		
    
    		
    		<mapping resource="com/demo/entity/TbUsers.hbm.xml" />
    
    	</session-factory>
    </hibernate-configuration>

*  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 value="utf-8" name="struts.i18n.encoding" />
    	<constant value="Massage" name="struts.custom.i18n.resources" />
    	<constant value="/chatext,/pages/mes/TakePhoto.html" name="struts.action.excludePattern" />
    	<constant value="gif,jpeg,jpg,png,bmp" name="com.chinacnd.allowed.images" />
    
    	<constant name="struts.enable.DynamicMethodInvocation" value="true" />
    	<constant name="struts.devMode" value="false" />
    	<constant name="struts.objectFactory" value="spring" />
    	<constant name="struts.multipart.saveDir" value="E://mesPhotos"></constant>
    	<constant name="struts.multipart.maxSize" value="10701096" />
    
    	
    	<package name="demo" extends="struts-default" namespace="/">
    		
    		<action name="UserExist" class="user_a" method="IfExist">
    			<result name="success">index.jsp</result>
    			<result name="error">indexs.jsp</result>
    		</action>
    
    	</package>
    	
        <package name="ajax" namespace="/ajax" extends="json-default"> 
    		<action name="LogIn" class="log_a" method="LogIn">
       			<result type="json"></result>
       		</action>
    	
    	</package>
    	
    </struts>

*  druid.properties

jdbc.driverClass=com.microsoft.sqlserver.jdbc.SQLServerDriver
    jdbc.jdbcUrl=jdbc:sqlserver://127.0.0.1:1433;DatabaseName=Test_SSH
    jdbc.user=sa
    jdbc.password=******

*  logback-test.xml --日志记录配置文件

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE xml>
      
      
    
    
      
    <configuration debug="false" scan="true" scanPeriod="60 seconds">
     	
     	
        <statusListener class="ch.qos.logback.core.status.NopStatusListener" />
     	
     	<property name="LogBack_WARN" value="C:/Log/My_SSH/logback_warn"></property> //这里为日志的存储地址
    	<property name="LogBack_ERROR" value="C:/Log/My_SSH/logback_error"></property> //这里为日志的存储地址
    	<property name="LogBack_INFO" value="C:/Log/My_SSH/logback_info"></property> //这里为日志的存储地址
    	<property name="LogBack_DEBUG" value="C:/Log/My_SSH/logback_debug"></property> //这里为日志的存储地址
    	
    	
    	  
        <property name="maxHistory_WARN" value="60"/>  
    	<property name="maxHistory_ERROR" value="60"/>  
    	<property name="maxHistory_INFO" value="30"/> 
    	<property name="maxHistory_DEBUG" value="60"/> 
        
        <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
            
            <encoder>
                <Pattern>[%d{yyyy-MM-dd HH:mm:ss.SSS}] [%5level] [%thread] %logger{0} %msg%n</Pattern>
                <charset>UTF-8</charset>
            </encoder>
        </appender>
     
     	  
        <appender name="WARN" class="ch.qos.logback.core.rolling.RollingFileAppender">  
              
            <filter class="ch.qos.logback.classic.filter.LevelFilter">  
                <level>WARN</level>  
                <onMatch>ACCEPT</onMatch>  
                <onMismatch>DENY</onMismatch>  
            </filter>  
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">  
                  
                <fileNamePattern>${LogBack_WARN}/%d{yyyy-MM-dd}/warn-log.log</fileNamePattern>  
                  
                <maxHistory>${maxHistory_WARN}</maxHistory>  
            </rollingPolicy>  
            <encoder>  
                <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%n</pattern>  
            </encoder>  
        </appender>
     	
     	  
          
        <appender name="ERROR" class="ch.qos.logback.core.rolling.RollingFileAppender">  
    		  
    		<filter class="ch.qos.logback.classic.filter.LevelFilter">  
    			<level>ERROR</level>  
    			<onMatch>ACCEPT</onMatch>  
    			<onMismatch>DENY</onMismatch>  
    		</filter>  
              
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">  
                  
                <fileNamePattern>${LogBack_ERROR}/%d{yyyy-MM-dd}/error-log.log</fileNamePattern>  
                  
                <maxHistory>${maxHistory_ERROR}</maxHistory>  
            </rollingPolicy>  
              
              
              
              
            <encoder>  
                <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%n</pattern>  
            </encoder>  
        </appender> 
     
        
        
    	<appender name="INFO" class="ch.qos.logback.core.rolling.RollingFileAppender">
        	
    		<filter class="ch.qos.logback.classic.filter.LevelFilter">
    			<level>INFO</level>
    			<onMatch>ACCEPT</onMatch>
    			<onMismatch>DENY</onMismatch>
    		</filter>
    		<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
    			<fileNamePattern>${LogBack_INFO}/%d{yyyy-MM-dd}/info-log.log</fileNamePattern>
    			<maxHistory>${maxHistory_INFO}</maxHistory>
     			
    		</rollingPolicy>
    		<timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
    			<maxFileSize>10MB</maxFileSize>
    		</timeBasedFileNamingAndTriggeringPolicy>
    		<encoder>
    			<Pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{85} - %msg%n</Pattern>
    		</encoder>
    	</appender>
    	
    	
        <appender name="DEBUG" class="ch.qos.logback.core.FileAppender">
            
            <filter class="ch.qos.logback.classic.filter.LevelFilter">
                
                <level>DEBUG</level>
                <onMatch>ACCEPT</onMatch>
                <onMismatch>DENY</onMismatch>
            </filter>
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">  
                  
                <fileNamePattern>${LogBack_DEBUG}/%d{yyyy-MM-dd}/debug-log.log</fileNamePattern>  
                  
                <maxHistory>${maxHistory_DEBUG}</maxHistory>  
            </rollingPolicy> 
            <encoder>
                <Pattern>[%d{yyyy-MM-dd HH:mm:ss.SSS}] [%5level] [%thread] %logger{0} %msg%n</Pattern>
                <charset>UTF-8</charset>
            </encoder>
        </appender>
     
     	  
          
     	
    	
        
            
            
            
                
                
                    
                    
                
                
                
            
     
            
                
                
            
        
     	
        
     
        
        <appender name ="ASYNC" class= "ch.qos.logback.classic.AsyncAppender">
            
            <discardingThreshold >0</discardingThreshold>
            
            <queueSize>512</queueSize>
            
            <appender-ref ref ="ERROR"/>
        </appender>
     
        
        <logger name="ch.qos.logback" />
     	  
        <logger name="org.hibernate.type.descriptor.sql.BasicBinder"  level="TRACE" />  
        <logger name="org.hibernate.type.descriptor.sql.BasicExtractor"  level="DEBUG" />  
        <logger name="org.hibernate.SQL" level="DEBUG" />
        <logger name="org.hibernate.type" level="TRACE" />
        <logger name="org.hibernate.engine.QueryParameters" level="DEBUG" />  
        <logger name="org.hibernate.engine.query.HQLQueryPlan" level="DEBUG" /> 
        
        <logger name="com.demo.z_Test.LogBack_Test" level="WARN" additivity="false">
            
            <appender-ref ref="WARN"/>
            <appender-ref ref="ERROR"/>
            
            
            
            
            
        </logger>
     
        
        <root level="WARN">
            
            <appender-ref ref="WARN"/>
            <appender-ref ref="ERROR"/>
            
            
            
            
        </root>
    </configuration>

*  web.xml：此处配置了自定义的拦截器和session监听器

<?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/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
      <display-name>MySSH</display-name>
      <welcome-file-list>
        <welcome-file>index.html</welcome-file>
        <welcome-file>index.htm</welcome-file>
        <welcome-file>index.jsp</welcome-file>
        <welcome-file>default.html</welcome-file>
        <welcome-file>default.htm</welcome-file>
        <welcome-file>default.jsp</welcome-file>
      </welcome-file-list>
      
      	<context-param>
    	    <param-name>webAppRootKey</param-name>
    	    <param-value>WEB.ROOT</param-value>
      	</context-param>
      	
        <context-param>  
            <param-name>contextConfigLocation</param-name>  
            <param-value>classpath:applicationContext.xml</param-value>  
        </context-param>
        <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
        </listener>
      	<listener>
        	<listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
      	</listener>
      	<listener>
    		<listener-class>com.demo.dbutil.SessionListener</listener-class>
      	</listener>
        
    	
        <filter>
            <filter-name>UserLogFilter</filter-name>
            <filter-class>com.demo.Filter.UserLogFilter</filter-class>
        </filter>
    	<filter-mapping>
            <filter-name>UserLogFilter</filter-name>
            <url-pattern>/pages/*</url-pattern>
        </filter-mapping>   
        
        <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>
        
        <filter>
        <filter-name>openSessionInViewFilter</filter-name>
        <filter-class>org.springframework.orm.hibernate5.support.OpenSessionInViewFilter</filter-class>
    	</filter>
    	<filter-mapping>
    	   <filter-name>openSessionInViewFilter</filter-name>
    	   <url-pattern>/*</url-pattern>
    	</filter-mapping>
        
        
        
    </web-app>

### 工程文件 ###

**HibernateUtil.java：sessionFactory的实现**

package com.demo.hibernate;
     
    import org.hibernate.HibernateException;
    import org.hibernate.Session;
    import org.hibernate.SessionFactory;
    import org.hibernate.boot.MetadataSources;
    import org.hibernate.cfg.Configuration;
    import org.hibernate.service.ServiceRegistry;
     
    public class HibernateUtil {
    	//为保证线程安全，将Seeeion放到ThreadLocal中管理。这样就避免了Session的多线程共享数据的问题
    	private static final ThreadLocal<Session> threadLocal = new ThreadLocal<Session>();
        private static SessionFactory sessionFactory = null;//SessionFactory对象
        //静态块(在类被加载时执行，且生命周期内只执行一次)
    	static {
        	try {
        		// 加载Hibernate配置文件,默认为hibernate.cfg.xml
    			Configuration cfg = new Configuration().configure();
    			//	创建会话工厂
    			//	hibernate4.0版本前这样获取sessionFactory = configuration.buildSessionFactory();
    			//	hibernate5以后规定，所有的配置或服务，要生效，必须配置或服务注册到一个服务注册类(服务构建器-->服务注册器)
    			ServiceRegistry serviceRegistry = cfg.getStandardServiceRegistryBuilder().build();
    			//  根据服务注册类创建一个元数据资源集，同时构建元数据并生成应用一般唯一的的session工厂
    			sessionFactory = new MetadataSources(serviceRegistry).buildMetadata().buildSessionFactory();
    		} catch (Exception e) {
    			System.err.println("1:创建会话工厂失败");
    			e.printStackTrace();
    		}
        }
    	/**
         *	获取Session
         *  @return Session
         *  @throws HibernateException
         */
        public static Session getSession() throws HibernateException {
            Session session = (Session) threadLocal.get();	//获取ThreadLocal中当前线程共享变量的值。
    		if (session == null || !session.isOpen()) {
    			if (sessionFactory == null) {		//如果会话工厂创建失败为空就在重新创建一次
    				rebuildSessionFactory();
    			}
    			//创建Sqlsession数据库会话
    			session = (sessionFactory != null) ? sessionFactory.openSession(): null;
    			//设置ThreadLocal中当前线程共享变量的值。
    			threadLocal.set(session);
    		}
     
            return session;
        }
    	/**
         * 重建会话工厂
         */
    	public static void rebuildSessionFactory() {
        	try {
        		// 加载Hibernate配置文件
    			Configuration cfg = new Configuration().configure();
    			//	创建会话工厂
    			//	hibernate4.0版本前这样获取sessionFactory = configuration.buildSessionFactory();
    			//	hibernate5以后规定，所有的配置或服务，要生效，必须配置或服务注册到一个服务注册类(服务构建器-->服务注册器)
    			ServiceRegistry serviceRegistry = cfg.getStandardServiceRegistryBuilder().build();
    			//  根据服务注册类创建一个元数据资源集，同时构建元数据并生成应用一般唯一的的session工厂
    			sessionFactory = new MetadataSources(serviceRegistry).buildMetadata().buildSessionFactory();
    		} catch (Exception e) {
    			System.err.println("2:创建会话工厂失败");
    			e.printStackTrace();
    		}
    	}
    	/**
    	 * 获取SessionFactory对象
    	 * @return SessionFactory对象
    	 */
    	public static SessionFactory getSessionFactory() {
    		return sessionFactory;
    	}
    	/** 
         *	关闭Session
         *  @throws HibernateException
         */
        public static void closeSession() throws HibernateException {
            Session session = (Session) threadLocal.get();
            //使用set(null)来回收ThreadLocal设置的值.
            threadLocal.set(null);
            if (session != null) {
                session.close();//关闭Session
            }
        }
    }

**SessionListener监听器**

package com.demo.dbutil;
    
    import javax.servlet.http.HttpSession;
    import javax.servlet.http.HttpSessionEvent;
    import javax.servlet.http.HttpSessionListener;
    
    
    public class SessionListener implements HttpSessionListener{
    
    	private MySessionContext myc = MySessionContext.getInstance();
    	public void sessionCreated(HttpSessionEvent httpSessionEvent) {
    		HttpSession session = httpSessionEvent.getSession();
    		myc.addSession(session);
    		//System.out.println("获取session:"+session.getId());
    		
    	}
    	public void sessionDestroyed(HttpSessionEvent httpSessionEvent) {
    		HttpSession session = httpSessionEvent.getSession();
    		myc.delSession(session);
    		//System.out.println("丢失session:"+session.getId());
    		//session过期时要恢复用户登录状态
    		
    	}
    	
    	
    }

**MySessionContext**

package com.demo.dbutil;
    
    import java.util.HashMap;
    
    import javax.servlet.http.HttpSession;
    
    public class MySessionContext {
    	
    	private static MySessionContext instance;  
        private HashMap<String,HttpSession> sessionMap;  
    
        private MySessionContext() {  
            sessionMap = new HashMap<String,HttpSession>();  
        }  
    
        public static MySessionContext getInstance() {  
            if (instance == null) {  
                instance = new MySessionContext();  
            }  
            return instance;  
        }  
    
        public synchronized void addSession(HttpSession session) {  
            if (session != null) {  
                sessionMap.put(session.getId(), session);  
            }  
        }  
    
        public synchronized void delSession(HttpSession session) {  
            if (session != null) {  
                sessionMap.remove(session.getId());  
            }  
        }  
    
        public synchronized HttpSession getSession(String sessionID) {  
            if (sessionID == null) {  
                return null;  
            }  
            return sessionMap.get(sessionID);  
        }  
    
    
    
    }

**DAO层的实现**  
daoImpl

package com.demo.daoImpl;
    
    import java.util.List;
    
    import org.hibernate.HibernateException;
    import org.hibernate.Session;
    import org.hibernate.Transaction;
    import org.hibernate.query.Query;
    import org.springframework.orm.hibernate5.support.HibernateDaoSupport;
    
    import com.demo.dao.LogDao;
    import com.demo.entity.TbUsers;
    import com.demo.hibernate.HibernateUtil;
    
    public class LogDaoImpl extends HibernateDaoSupport implements LogDao{
    	
    	/*
    	 * 登录
    	 */
    	@SuppressWarnings("unchecked")
    	public List<TbUsers> Login(String account,String password){
    		
    		Session session = null;
    		List<TbUsers> list = null;
    		session = HibernateUtil.getSession(); 
    		// HQL查询的是实体类的名称，不是数据表的名称 
    		String hql = "from TbUsers u where u.userAccount=?0 and u.userPassword=?1";
    		if(session!=null){
    			try{
    				Query<TbUsers> query = session.createQuery(hql); 
    				query.setParameter(0, account);
    				query.setParameter(1, password);
    				list = query.list();
    			}catch(HibernateException e){
    				e.printStackTrace();
    			}
    			
    			
    		}
    		HibernateUtil.closeSession();
    		return list;
    		
    	}
    	
    	/*
    	 * 改变登录状态
    	 */
    	@SuppressWarnings("rawtypes")
    	public boolean UpdateUserState(String sessionId,String state,String account,String password){
    		boolean ret = true;
    		Session session = null;
    		Transaction tx = null;
    		session = HibernateUtil.getSession();
    		String hql = "update TbUsers u set u.userC = ?0, u.userD = ?1 "
    					+"where u.userAccount = ?2 and u.userPassword = ?3"; //第二种删除方式
    		if(session!=null){
    			try{
    				tx = session.beginTransaction();
    				Query query = session.createQuery(hql);
    				query.setParameter(0,sessionId);
    				query.setParameter(1,state);
    				query.setParameter(2,account);
    				query.setParameter(3,password);
    				query.executeUpdate();
    				tx.commit();
    			}catch(HibernateException e){
    				ret = false;
    				e.printStackTrace();
    				tx.rollback();
    			}
    		}
    		
    		HibernateUtil.closeSession();
    		return ret;
    	}
    	
    	/*
    	 * session销毁时清空状态信息
    	 */
    
    	@SuppressWarnings("rawtypes")
    	public boolean UpdateUserStateBySession(String sessionId){
    		//System.out.println("更新session:"+sessionId);
    		boolean ret = true;
    		Session session = null;
    		Transaction tx = null;
    		session = HibernateUtil.getSession();
    		String hql = "update TbUsers u set u.userC=?0 u.userD = ?1"
    					+"where u.userC = ?2"; //第二种删除方式
    		if(session!=null){
    			try{
    				tx = session.beginTransaction();
    				Query query = session.createQuery(hql);
    				query.setParameter(0,"");
    				query.setParameter(1,"0");
    				query.setParameter(2,sessionId);
    				query.executeUpdate();
    				tx.commit();
    			}catch(HibernateException e){
    				ret = false;
    				e.printStackTrace();
    				tx.rollback();
    			}
    		}
    		
    		HibernateUtil.closeSession();
    		return ret;
    	}
    
    	
    }

dao

package com.demo.dao;
    
    import java.util.List;
    
    import com.demo.entity.TbUsers;
    
    public interface LogDao {
    
    	public List<TbUsers> Login(String account,String password);
    	public boolean UpdateUserState(String sessionId,String state,String account,String password);
    	public boolean UpdateUserStateBySession(String sessionId);
    }

**SERVICE层**  
serviceImpl

package com.demo.serviceImpl;
    
    import java.util.List;
    
    import com.demo.dao.LogDao;
    import com.demo.entity.TbUsers;
    import com.demo.service.LogService;
    
    public class LogServiceImpl implements LogService{
    
    	private LogDao dao;
    	public void setDao(LogDao dao) {
    		this.dao = dao;
    	}
    
    	@Override
    	public List<TbUsers> Login(String account, String password) {
    		// TODO Auto-generated method stub
    		return dao.Login(account, password);
    	}
    	
    	public boolean UpdateUserState(String sessionId,String state,String account,String password){
    		return dao.UpdateUserState(sessionId,state, account, password);
    	}
    	
    	public boolean UpdateUserStateBySession(String sessionId){
    		return dao.UpdateUserStateBySession(sessionId);
    	}
    	
    }

service

package com.demo.service;
    
    import java.util.List;
    
    import com.demo.entity.TbUsers;
    
    public interface LogService {
    
    	public List<TbUsers> Login(String account,String password);
    	public boolean UpdateUserState(String sessionId,String state,String account,String password);
    	public boolean UpdateUserStateBySession(String sessionId);
    }

**ACTION层**

package com.demo.action;
    
    import java.io.IOException;
    import java.util.List;
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import javax.servlet.http.HttpSession;
    
    import org.apache.struts2.ServletActionContext;
    
    import com.demo.dbutil.MySessionContext;
    import com.demo.entity.TbUsers;
    import com.demo.service.LogService;
    
    public class LogAction {
    
    	private MySessionContext myc = MySessionContext.getInstance();
    	private LogService service;
    	
    	public void setService(LogService service) {
    		this.service = service;
    	}
    	
    	public String LogIn() throws Exception{
    		HttpServletResponse response = ServletActionContext.getResponse();
    		response.setCharacterEncoding("UTF-8");
    		HttpServletRequest request=ServletActionContext.getRequest();
    		HttpSession session = request.getSession(true);
    		session.setMaxInactiveInterval(60*30);//60*30秒失效
    		String account = null;
    		String password = null;
    		List<TbUsers> list = null;
    		String re = null;
    		if(request.getParameter("account")!=null){
    			account = request.getParameter("account").toString();
    			password = request.getParameter("password").toString();
    		}
    		try{
    			list = service.Login(account, password);
    		}catch(Exception e){
    			e.printStackTrace();
    			re = "unusual";
    		}
    		if(list!=null){
    			if(list.get(0).getUserD().equals("0")){
    				if(service.UpdateUserState(session.getId(),"1", account, password)){
    					myc.addSession(session);
    					re = "success";
    				}else{
    					re = "error";
    				}
    			}else{
    				if(service.UpdateUserState("","0", account, password)){
    					re = "exist";
    				}else{
    					re = "error";
    				}
    				//存在则断开session
    				HttpSession sess = myc.getSession(list.get(0).getUserC());
    				if(sess!=null){
    					myc.delSession(sess);
    					sess.invalidate();
    				}
    				
    			}
    			
    		}else{
    			re = "error";
    		}
    		
    		try {
    			response.getWriter().write(re);
    		} catch (IOException e) {
    			// TODO Auto-generated catch block e.printStackTrace();
    		}
    		list = null;
    		return null;
    	}
    	
    	
    }

**日志测试类**

package com.demo.z_Test;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    
    public class LogBack_Test {
    	
    	private static final Logger logger = LoggerFactory.getLogger(LogBack_Test.class);
    	public static void main(String[] args) {
    		
    		//LogBack打印日志测试
    		for(int i=0;i<10;i++){
    			logger.trace("打印第：" + i + " 个日志，trace");  
    			logger.debug("打印第：" + i + " 个日志，debug");  
    			logger.info("打印第：" + i + " 个日志，info");  
    			logger.warn("打印第：" + i + " 个日志，warn");  
    			logger.error("打印第：" + i + " 个日志，error");
    		}
    		
            
    	}
    
    }

### 关于USERS的实现可以自由完成，此处不再提供 ###

### 工程文件链接审核通过后附上 ###

[SSH]: https://download.csdn.net/download/weixin_42176639/11266034
[Link 1]: https://struts.apache.org/download.cgi#struts2520
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[Link 2]: https://repo.spring.io/webapp/#/artifacts/browse/tree/General/libs-release-local/org/springframework/spring/3.2.0.RELEASE/spring-framework-3.2.0.RELEASE-dist.zip
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[hibernate]: http://hibernate.org/
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[20190630235146519.png]: https://img-blog.csdnimg.cn/20190630235146519.png
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