SSH是 struts+spring+hibernate的一个集成框架，是目前比较流行的一种Web应用程序开源框架。
SSH的整合思路
1、导入所需要的pom依赖
2、几大框架的配置文件（web.xml/struts.xml、hibernate的配置、spring的配置）
3、spring与hibernate整合桥接的配置文件替换掉了hibernate.cfg.xml
spring-hibernate.xml(难点)
注册数据库连接信息文件
配置数据库连接池（新的知识点）
配置sessionfactory
配置声明式事务（aop）
com.liuwenwu.base.xxxBiz
com.liuwenwu.book.xxxBiz
com.liuwenwu.book.yyyBiz
com.liuwenwu.*.*Biz
配置Base模块
UserDao
private Session session;
add
session
edit
del
<bean id="sesion" class="....">
<bean id="userDao" class="com.zking.dao.UserDao">
<property name="session' ref="session"></property>
</bean>
4、配置struts.xml
5、做测试
导入所需的pom依赖 不要一次性导入太多，网不好是容易下不全
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.lww</groupId>
<artifactId>T224_SSH</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>T224_SSH Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<hibernate.version>5.2.12.Final</hibernate.version>
<mysql.version>5.1.44</mysql.version>
<spring.version>5.0.1.RELEASE</spring.version>
<struts2.version>2.5.13</struts2.version>
<slf4j.version>1.7.7</slf4j.version>
<log4j2.version>2.9.1</log4j2.version>
<disruptor.version>3.2.0</disruptor.version>
<junit.version>4.12</junit.version>
<javax.servlet.version>4.0.0</javax.servlet.version>
<jstl.version>1.2</jstl.version>
<standard.version>1.1.2</standard.version>
<tomcat-jsp-api.version>8.0.47</tomcat-jsp-api.version>
</properties>
<dependencies>
<!-- 1、导入hibernate依赖 -->
<!-- 核心包 -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>${hibernate.version}</version>
</dependency>
<!-- 桥接包 -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-c3p0</artifactId>
<version>${hibernate.version}</version>
</dependency>
<!-- 缓存的桥接包 -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-ehcache</artifactId>
<version>${hibernate.version}</version>
</dependency>
<!-- 数据库驱动包 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<!-- 2、导入spring依赖 -->
<!-- spring核心包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- 桥接包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- 桥接包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- spring aop -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- 3、导入struts2依赖 -->
<!-- 核心包 -->
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-core</artifactId>
<version>${struts2.version}</version>
</dependency>
<!-- struts2-spring整合包 -->
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-spring-plugin</artifactId>
<version>${struts2.version}</version>
</dependency>
<!-- 4、导入日志系统依赖 -->
<!-- log配置：Log4j2 + Slf4j -->
<!-- slf4j核心包 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>${slf4j.version}</version>
<scope>runtime</scope>
</dependency>
<!--用于与slf4j保持桥接 -->
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-slf4j-impl</artifactId>
<version>${log4j2.version}</version>
</dependency>
<!--核心log4j2jar包 -->
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>${log4j2.version}</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>${log4j2.version}</version>
</dependency>
<!--web工程需要包含log4j-web，非web工程不需要 -->
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-web</artifactId>
<version>${log4j2.version}</version>
<scope>runtime</scope>
</dependency>
<!--需要使用log4j2的AsyncLogger需要包含disruptor -->
<dependency>
<groupId>com.lmax</groupId>
<artifactId>disruptor</artifactId>
<version>${disruptor.version}</version>
</dependency>
<!-- 5、other -->
<!-- 5.1、junit -->
<!-- 测试 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<!-- 5.2、servlet -->
<!-- Tomcat依赖 -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>${javax.servlet.version}</version>
<scope>provided</scope>
</dependency>
<!-- 5.3、jstl、standard -->
<!-- C标签库 -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>${standard.version}</version>
</dependency>
<!-- 5.4、tomcat-jsp-api -->
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jsp-api</artifactId>
<version>${tomcat-jsp-api.version}</version>
</dependency>
</dependencies>
<build>
<finalName>T224_SSH</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
</plugins>
</build>
</project>
框架所需的配置文件
数据库连接 db.properties
db.username=root db.password=123 db.driverClass=com.mysql.jdbc.Driver db.jdbcUrl=jdbc:mysql://localhost:3306/t224?useUnicode=true&characterEncoding=UTF-8&useSSL=true db.initialPoolSize=10 db.maxPoolSize=20 db.minPoolSize=5 db.maxIdleTime=60 db.acquireIncrement=5 db.maxStatements=0 db.idleConnectionTestPeriod=60 db.acquireRetryAttempts=30 db.breakAfterAcquireFailure=true db.testConnectionOnCheckout=false
web.xml
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<display-name>Archetype Created Web Application</display-name>
<!--
spring与web整合需要监听器 spring ioc spring-web.jar
整合struts框架，配置strutsPreapareAndExecuteFilter
要处理jsp传递到后台的中文乱码问题 配置过滤器 spring提供的过滤器
防止内存溢出配置
-->
<!-- 1、整合spring -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-context.xml</param-value>
</context-param>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<!-- 2、整合struts2 -->
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter
</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>*.action</url-pattern>
</filter-mapping>
<!-- 3、添加过滤器 -->
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>
org.springframework.web.filter.CharacterEncodingFilter
</filter-class>
<async-supported>true</async-supported>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
log4j2.xml
<?xml version="1.0" encoding="UTF-8"?>
<!-- status : 指定log4j本身的打印日志的级别.ALL< Trace < DEBUG < INFO < WARN < ERROR
< FATAL < OFF。 monitorInterval : 用于指定log4j自动重新配置的监测间隔时间，单位是s,最小是5s. -->
<Configuration status="WARN" monitorInterval="30">
<Properties>
<!-- 配置日志文件输出目录 ${sys:user.home} -->
<Property name="LOG_HOME">/root/workspace/lucenedemo/logs</Property>
<property name="ERROR_LOG_FILE_NAME">/root/workspace/lucenedemo/logs/error</property>
<property name="WARN_LOG_FILE_NAME">/root/workspace/lucenedemo/logs/warn</property>
<property name="PATTERN">%d{yyyy-MM-dd HH:mm:ss.SSS} [%t-%L] %-5level %logger{36} - %msg%n</property>
</Properties>
<Appenders>
<!--这个输出控制台的配置 -->
<Console name="Console" target="SYSTEM_OUT">
<!-- 控制台只输出level及以上级别的信息(onMatch),其他的直接拒绝(onMismatch) -->
<ThresholdFilter level="trace" onMatch="ACCEPT"
onMismatch="DENY" />
<!-- 输出日志的格式 -->
<!-- %d{yyyy-MM-dd HH:mm:ss, SSS} : 日志生产时间 %p : 日志输出格式 %c : logger的名称
%m : 日志内容，即 logger.info("message") %n : 换行符 %C : Java类名 %L : 日志输出所在行数 %M
: 日志输出所在方法名 hostName : 本地机器名 hostAddress : 本地ip地址 -->
<PatternLayout pattern="${PATTERN}" />
</Console>
<!--文件会打印出所有信息，这个log每次运行程序会自动清空，由append属性决定，这个也挺有用的，适合临时测试用 -->
<!--append为TRUE表示消息增加到指定文件中，false表示消息覆盖指定的文件内容，默认值是true -->
<File name="log" fileName="logs/test.log" append="false">
<PatternLayout
pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" />
</File>
<!-- 这个会打印出所有的info及以下级别的信息，每次大小超过size， 则这size大小的日志会自动存入按年份-月份建立的文件夹下面并进行压缩，作为存档 -->
<RollingFile name="RollingFileInfo" fileName="${LOG_HOME}/info.log"
filePattern="${LOG_HOME}/$${date:yyyy-MM}/info-%d{yyyy-MM-dd}-%i.log">
<!--控制台只输出level及以上级别的信息（onMatch），其他的直接拒绝（onMismatch） -->
<ThresholdFilter level="info" onMatch="ACCEPT"
onMismatch="DENY" />
<PatternLayout
pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" />
<Policies>
<!-- 基于时间的滚动策略，interval属性用来指定多久滚动一次，默认是1 hour。 modulate=true用来调整时间：比如现在是早上3am，interval是4，那么第一次滚动是在4am，接着是8am，12am...而不是7am. -->
<!-- 关键点在于 filePattern后的日期格式，以及TimeBasedTriggeringPolicy的interval， 日期格式精确到哪一位，interval也精确到哪一个单位 -->
<!-- log4j2的按天分日志文件 : info-%d{yyyy-MM-dd}-%i.log -->
<TimeBasedTriggeringPolicy interval="1"
modulate="true" />
<!-- SizeBasedTriggeringPolicy:Policies子节点， 基于指定文件大小的滚动策略，size属性用来定义每个日志文件的大小. -->
<!-- <SizeBasedTriggeringPolicy size="2 kB" /> -->
</Policies>
</RollingFile>
<RollingFile name="RollingFileWarn" fileName="${WARN_LOG_FILE_NAME}/warn.log"
filePattern="${WARN_LOG_FILE_NAME}/$${date:yyyy-MM}/warn-%d{yyyy-MM-dd}-%i.log">
<ThresholdFilter level="warn" onMatch="ACCEPT"
onMismatch="DENY" />
<PatternLayout
pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" />
<Policies>
<TimeBasedTriggeringPolicy />
<SizeBasedTriggeringPolicy size="2 kB" />
</Policies>
<!-- DefaultRolloverStrategy属性如不设置，则默认为最多同一文件夹下7个文件，这里设置了20 -->
<DefaultRolloverStrategy max="20" />
</RollingFile>
<RollingFile name="RollingFileError" fileName="${ERROR_LOG_FILE_NAME}/error.log"
filePattern="${ERROR_LOG_FILE_NAME}/$${date:yyyy-MM}/error-%d{yyyy-MM-dd-HH-mm}-%i.log">
<ThresholdFilter level="error" onMatch="ACCEPT"
onMismatch="DENY" />
<PatternLayout
pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" />
<Policies>
<!-- log4j2的按分钟 分日志文件 : warn-%d{yyyy-MM-dd-HH-mm}-%i.log -->
<TimeBasedTriggeringPolicy interval="1"
modulate="true" />
<!-- <SizeBasedTriggeringPolicy size="10 MB" /> -->
</Policies>
</RollingFile>
</Appenders>
<!--然后定义logger，只有定义了logger并引入的appender，appender才会生效 -->
<Loggers>
<!--过滤掉spring和mybatis的一些无用的DEBUG信息 -->
<logger name="org.springframework" level="INFO"></logger>
<logger name="org.mybatis" level="INFO"></logger>
<!-- 第三方日志系统 -->
<logger name="org.springframework" level="ERROR" />
<logger name="org.hibernate" level="ERROR" />
<logger name="org.apache.struts2" level="ERROR" />
<logger name="com.opensymphony.xwork2" level="ERROR" />
<logger name="org.jboss" level="ERROR" />
<!-- 配置日志的根节点 -->
<root level="all">
<appender-ref ref="Console" />
<appender-ref ref="RollingFileInfo" />
<appender-ref ref="RollingFileWarn" />
<appender-ref ref="RollingFileError" />
</root>
</Loggers>
</Configuration>
struts-base.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
"http://struts.apache.org/dtds/struts-2.5.dtd">
<struts>
<constant name="struts.i18n.encoding" value="UTF-8" />
<constant name="struts.devMode" value="true" />
<constant name="struts.configuration.xml.reload" value="true" />
<constant name="struts.i18n.reload" value="true" />
<constant name="struts.enable.DynamicMethodInvocation" value="true" />
<package name="base" extends="struts-default" abstract="true">
<global-allowed-methods>regex:.*</global-allowed-methods>
</package>
</struts>
struts-sy.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
"http://struts.apache.org/dtds/struts-2.5.dtd">
<struts>
<package name="sy" extends="base" namespace="/sy">
<!-- 这里的class不再是全路径名了，而是spring所管理的Bean的id -->
<action name="/book_*" class="bookAction" method="{1}">
</action>
</package>
</struts>
struts.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
"http://struts.apache.org/dtds/struts-2.5.dtd">
<struts>
<include file="struts-default.xml"></include>
<include file="struts-base.xml"></include>
<include file="struts-sy.xml"></include>
</struts>
spring-book.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:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">
<bean id="bookdao" class="com.liuwenwu.book.dao.BookDao" parent="baseDao"></bean>
<bean id="bookbiz" class="com.liuwenwu.book.biz.impl.BookBizImpl" parent="baseBiz">
<property name="bookdao" ref="bookdao"></property>
</bean>
<bean id="bookAction" class="com.liuwenwu.book.web.BookAction" parent="baseAction">
<property name="bookbiz" ref="bookbiz"></property>
</bean>
</beans>
spring-hibernate.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:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
<!-- 1、注册jdbc相关的配置文件 -->
<!-- 2、配置数据库连接池C3P0 -->
<!-- 注册数据库连接文件db.properties -->
<context:property-placeholder location="classpath:db.properties" />
<!-- 配置c3p0连接池 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="user" value="${db.username}"></property>
<property name="password" value="${db.password}"></property>
<property name="driverClass" value="${db.driverClass}"></property>
<property name="jdbcUrl" value="${db.jdbcUrl}"></property>
<!--初始化时获取的连接数，取值应在minPoolSize与maxPoolSize之间。Default: 3 -->
<property name="initialPoolSize" value="${db.initialPoolSize}"></property>
<!--连接池中保留的最大连接数。Default: 15 -->
<property name="maxPoolSize" value="${db.maxPoolSize}"></property>
<!--连接池中保留的最小连接数。 -->
<property name="minPoolSize" value="${db.minPoolSize}" />
<!--最大空闲时间,60秒内未使用则连接被丢弃。若为0则永不丢弃。Default: 0 -->
<property name="maxIdleTime" value="${db.maxIdleTime}" />
<!--当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。Default: 3 -->
<property name="acquireIncrement" value="${db.acquireIncrement}" />
<!--JDBC的标准参数，用以控制数据源内加载的PreparedStatements数量。但由于预缓存的statements 属于单个connection而不是整个连接池。
所以设置这个参数需要考虑到多方面的因素。如果maxStatements与maxStatementsPerConnection均为0，则缓存被关闭。Default:
-->
<property name="maxStatements" value="${db.maxStatements}" />
<!--每60秒检查所有连接池中的空闲连接。Default: 0 -->
<property name="idleConnectionTestPeriod" value="${db.idleConnectionTestPeriod}" />
<!--定义在从数据库获取新连接失败后重复尝试的次数。Default: 30 -->
<property name="acquireRetryAttempts" value="${db.acquireRetryAttempts}" />
<!--获取连接失败将会引起所有等待连接池来获取连接的线程抛出异常。但是数据源仍有效 保留，并在下次调用getConnection()的时候继续尝试获取连接。
如果设为true，那么在尝试 获取连接失败后该数据源将申明已断开并永久关闭。Default: false -->
<property name="breakAfterAcquireFailure" value="${db.breakAfterAcquireFailure}" />
<!--因性能消耗大请只在需要的时候使用它。如果设为true那么在每个connection提交的 时候都将校验其有效性。建议使用idleConnectionTestPeriod
或automaticTestTable 等方法来提升连接测试的性能。Default: false -->
<property name="testConnectionOnCheckout" value="${db.breakAfterAcquireFailure}" />
</bean>
<!-- 3、配置sessionfactory相关信息 -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
<!-- 数据源 -->
<property name="dataSource">
<ref bean="dataSource" />
</property>
<!-- hibernate相关属性 -->
<property name="hibernateProperties">
<props>
<prop key="dialect">org.hibernate.dialect.MySQLDialect</prop>
<!--spring与Hibernate集成无法显示sql语句问题，请见集成后hibernate无法显示sql语句.txt -->
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.format_sql">true</prop>
</props>
</property>
<!-- 实体映射文件 -->
<property name="mappingResources">
<list>
<value>com/liuwenwu/book/entity/Book.hbm.xml</value>
</list>
</property>
</bean>
<!-- 4、配置事务 -->
<!--声明式事务配置开始 -->
<!--
静态代理：
一个代理对象->一个目标对象
BookProxy(BookBizImpl+myMethodBeforeAdvice)->bookBiz
OrderProxy(OrderBizImpl+myMethodBeforeAdvice2)-> OrderBiz
动态代理：
一个代理对象->多个目标对象
-->
<!--1) 开启自动代理 -->
<aop:aspectj-autoproxy />
<!--2) 事务管理器 -->
<bean id="transactionManager"
class="org.springframework.orm.hibernate5.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<!--3) 定义事务特性 -->
<!-- 下面定义了增删改查的事物规则，意味着只有符合下面命名规则的方法，才会获取到session，以及提交事物 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="add*" propagation="REQUIRED" />
<tx:method name="save*" propagation="REQUIRED" />
<tx:method name="insert*" propagation="REQUIRED" />
<tx:method name="edit*" propagation="REQUIRED" />
<tx:method name="update*" propagation="REQUIRED" />
<tx:method name="del*" propagation="REQUIRED" />
<tx:method name="remove*" propagation="REQUIRED" />
<tx:method name="load*" propagation="REQUIRED" read-only="true" />
<tx:method name="list*" propagation="REQUIRED" read-only="true" />
<tx:method name="select*" propagation="REQUIRED" read-only="true" />
<tx:method name="query*" propagation="REQUIRED" read-only="true" />
<tx:method name="do*" propagation="REQUIRED" />
</tx:attributes>
</tx:advice>
<!--4) 定义切入点 -->
<aop:config>
<!-- pointcut属性用来定义一个切入点，分成四个部分理解 [* ][*..][*Biz][.*(..)] -->
<!-- A： 返回类型，*表示返回类型不限 -->
<!-- B： 包名，*..表示包名不限 -->
<!-- C： 类或接口名，*Biz表示类或接口必须以Biz结尾 -->
<!-- D： 方法名和参数，*(..)表示方法名不限，参数类型和个数不限 -->
<aop:advisor advice-ref="txAdvice" pointcut="execution(* *..*Biz.*(..))" />
<!-- 为什么一定要切在biz对应的借口上 -->
</aop:config>
<!-- 声明式事务配置结束 -->
<!-- 5、配置HibernateTemplate session-->
<bean class="org.springframework.orm.hibernate5.HibernateTemplate" id="hibernateTemplate">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<!-- 6、分模块开发（只配置base模块） -->
<bean class="com.liuwenwu.base.entity.BaseEntity" abstract="true" id="baseEntity"></bean>
<bean class="com.liuwenwu.base.dao.BaseDao" abstract="true" id="baseDao" >
<property name="hibernateTemplate" ref="hibernateTemplate"></property>
</bean>
<bean class="com.liuwenwu.base.biz.BaseBiz" abstract="true" id="baseBiz"></bean>
<bean class="com.liuwenwu.base.web.BaseAction" abstract="true" id="baseAction"></bean>
</beans>
spring-context.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:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">
<import resource="spring-hibernate.xml"/>
<import resource="spring-book.xml"/>
</beans>
基础base包
BaseDao
package com.liuwenwu.base.dao;
import java.io.Serializable;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import org.hibernate.Session;
import org.hibernate.query.Query;
import org.springframework.orm.hibernate5.support.HibernateDaoSupport;
import com.liuwenwu.base.util.PageBean;
public class BaseDao extends HibernateDaoSupport implements Serializable{
private static final long serialVersionUID = 5427369434249665701L;
public void setParam(Query query,Map<String, Object> map) {
if(map == null || map.size() < 1) {
return;
}
Object value = null;
for(Map.Entry<String, Object> entry:map.entrySet()) {
value = entry.getValue();
if(value instanceof Collection) {
query.setParameterList(entry.getKey(), (Collection) value);
}else if(value instanceof Object[]) {
query.setParameterList(entry.getKey(), (Object[]) value);
}else {
query.setParameter(entry.getKey(), value);
}
}
}
public String getCountHql(String hql) {
int index = hql.toUpperCase().indexOf("FROM");
return "select count(*) "+hql.substring(index);
}
/**
*
* @param hql 已经拼装好的
* @param map
* @param pageBean
* @return
*/
public List executeQuery(Session session, String hql,Map<String, Object> map,PageBean pageBean) {
if(pageBean !=null && pageBean.isPagination()) {
String countHql = getCountHql(hql);
Query countQuery = session.createQuery(countHql);
this.setParam(countQuery, map);
pageBean.setTotal(countQuery.getSingleResult().toString());
Query query = session.createQuery(hql);
this.setParam(query, map);
query.setFirstResult(pageBean.getStartIndex());
query.setMaxResults(pageBean.getRows());
List list = query.list();
return list;
}else {
Query query = session.createQuery(hql);
this.setParam(query, map);
List list = query.list();
return list;
}
}
}
BaseAction
package com.liuwenwu.base.web;
import java.io.Serializable;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;
public class BaseAction implements ServletRequestAware, ServletResponseAware,Serializable{
private static final long serialVersionUID = -7110462505161900879L;
/**
* 为了传值使用
*/
protected HttpServletResponse response;
protected HttpServletRequest request;
protected HttpSession session;
protected ServletContext application;
/**
* 为了配置跳转页面所用
*/
protected final static String SUCCESS = "success";
protected final static String FAIL = "fail";
protected final static String LIST = "list";
protected final static String ADD = "add";
protected final static String EDIT = "edit";
protected final static String DETAIL = "detail";
/**
* 具体传值字段 后端向jsp页面传值所用字段
*/
protected Object result;
protected Object msg;
protected int code;
public Object getResult() {
return result;
}
public Object getMsg() {
return msg;
}
public int getCode() {
return code;
}
@Override
public void setServletResponse(HttpServletResponse arg0) {
this.response = arg0;
}
@Override
public void setServletRequest(HttpServletRequest arg0) {
this.request = arg0;
this.session = arg0.getSession();
this.application = arg0.getServletContext();
}
}
PageBean
package com.liuwenwu.base.util;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
/**
* 分页工具类
*
*/
public class PageBean {
private int page = 1;// 页码
private int rows = 10;// 页大小
private int total = 0;// 总记录数
private boolean pagination = true;// 是否分页
// 获取前台向后台提交的所有参数
private Map<String, String[]> parameterMap;
// 获取上一次访问后台的url
private String url;
/**
* 初始化pagebean
*
* @param req
*/
public void setRequest(HttpServletRequest req) {
this.setPage(req.getParameter("page"));
this.setRows(req.getParameter("rows"));
// 只有jsp页面上填写pagination=false才是不分页
this.setPagination(!"fasle".equals(req.getParameter("pagination")));
this.setParameterMap(req.getParameterMap());
this.setUrl(req.getRequestURL().toString());
}
public int getMaxPage() {
return this.total % this.rows == 0 ? this.total / this.rows : this.total / this.rows + 1;
}
public int nextPage() {
return this.page < this.getMaxPage() ? this.page + 1 : this.getMaxPage();
}
public int previousPage() {
return this.page > 1 ? this.page - 1 : 1;
}
public PageBean() {
super();
}
public int getPage() {
return page;
}
public void setPage(int page) {
this.page = page;
}
public void setPage(String page) {
this.page = StringUtils.isBlank(page) ? this.page : Integer.valueOf(page);
}
public int getRows() {
return rows;
}
public void setRows(int rows) {
this.rows = rows;
}
public void setRows(String rows) {
this.rows = StringUtils.isBlank(rows) ? this.rows : Integer.valueOf(rows);
}
public int getTotal() {
return total;
}
public void setTotal(int total) {
this.total = total;
}
public void setTotal(String total) {
this.total = Integer.parseInt(total);
}
public boolean isPagination() {
return pagination;
}
public void setPagination(boolean pagination) {
this.pagination = pagination;
}
public Map<String, String[]> getParameterMap() {
return parameterMap;
}
public void setParameterMap(Map<String, String[]> parameterMap) {
this.parameterMap = parameterMap;
}
public String getUrl() {
return url;
}
public void setUrl(String url) {
this.url = url;
}
/**
* 获得起始记录的下标
*
* @return
*/
public int getStartIndex() {
return (this.page - 1) * this.rows;
}
@Override
public String toString() {
return "PageBean [page=" + page + ", rows=" + rows + ", total=" + total + ", pagination=" + pagination
+ ", parameterMap=" + parameterMap + ", url=" + url + "]";
}
}
book包
BookBiz
package com.liuwenwu.book.biz;
import java.util.List;
import com.liuwenwu.book.entity.Book;
public interface BookBiz {
public int add(Book book);
public List<Book> list();
}
book实体类
package com.liuwenwu.book.entity;
import com.liuwenwu.base.entity.BaseEntity;
public class Book extends BaseEntity {
private static final long serialVersionUID = -3928697492940325170L;
private Integer bid;
private String bname;
private Float price;
public Integer getBid() {
return bid;
}
public void setBid(Integer bid) {
this.bid = bid;
}
public String getBname() {
return bname;
}
public void setBname(String bname) {
this.bname = bname;
}
public Float getPrice() {
return price;
}
public void setPrice(Float price) {
this.price = price;
}
@Override
public String toString() {
return "Book [bid=" + bid + ", bname=" + bname + ", price=" + price + "]";
}
}
BookBizImpl
package com.liuwenwu.book.biz.impl;
import java.util.List;
import com.liuwenwu.book.biz.BookBiz;
import com.liuwenwu.book.dao.BookDao;
import com.liuwenwu.book.entity.Book;
/**
*
* 为什么一定要切在biz对应的接口上
*
* BookBizImpl->MoneyBizImpl
* transfer 转账的方法
* from,to
* this.MoneyDao.update(from) from用户的钱减少
* this.MoneyDao.update(to) to用户的钱增加
* 解释：
* 试想一下如果说事物的切面点是切在dao上面，意味着
* Transaction t= session.beginTransaction();
* this.MoneyDao.update(from)
* t.commit();
*
* Transaction t= session.beginTransaction();
* this.MoneyDao.update(to)
* t.commit();
*
* 此时调用MoneyBizImpl.transfer方法
* Transaction t= session.beginTransaction();
* this.MoneyDao.update(from)
* t.commit();
*
* 此处方法生异常
*
* Transaction t= session.beginTransaction();
* this.MoneyDao.update(to)
* t.commit();
*
* 由上可知：转账涉及到的两个用户不在一个事物中，如果中途发生异常，回滚的话，不能保证数据的唯一性
* 切在biz上面：
* MoneyAction中调用MoneyBizImpl.transfer方法
* Transaction t= session.beginTransaction();
* MoneyBizImpl.transfer(from,to);
* 相当于this.MoneyDao.update(to)+this.MoneyDao.update(from)
* t.commit();
* @author ASUS
*
*/
public class BookBizImpl implements BookBiz{
private BookDao bookdao;
public BookDao getBookdao() {
return bookdao;
}
public void setBookdao(BookDao bookdao) {
this.bookdao = bookdao;
}
@Override
public int add(Book book) {
// TODO Auto-generated method stub
return bookdao.add(book);
}
@Override
public List<Book> list() {
// TODO Auto-generated method stub
return bookdao.list();
}
}
实体类映射文件配置
Book.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>
<class table="t_mvc_book" name="com.liuwenwu.book.entity.Book">
<id name="bid" type="java.lang.Integer" column="bid">
<generator class="increment"></generator>
</id>
<property name="bname" type="java.lang.String" column="bname"></property>
<property name="price" type="java.lang.Float" column="price"></property>
</class>
</hibernate-mapping>
BookAction
package com.liuwenwu.book.web;
import java.util.List;
import com.liuwenwu.base.web.BaseAction;
import com.liuwenwu.book.biz.BookBiz;
import com.liuwenwu.book.entity.Book;
import com.opensymphony.xwork2.ModelDriven;
public class BookAction extends BaseAction implements ModelDriven<Book>{
// book是实现了modeldriven接口，那么意味着封装了jsp传递到后台的所有参数，详见struts
private Book book=new Book();
private static final long serialVersionUID = -5384381948425702641L;
private BookBiz bookbiz;
public BookBiz getBookbiz() {
return bookbiz;
}
public void setBookbiz(BookBiz bookbiz) {
this.bookbiz = bookbiz;
}
public String add() {
this.bookbiz.add(book);
return null;
}
public String list() {
List<Book> list= this.bookbiz.list();
for (Book b : list) {
System.out.println(b);
}
return null;
}
@Override
public Book getModel() {
return book;
}
}
测试查询：
新增测试：
