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这两天在做一个小项目，需要搭建SSH（spring+struts+hibernate）,在前一段时间我尝试着用直接向lib目录下添加jar 报的形式，可能由于经验不足，没有配置成功，再后来学会了使用maven进行jar报的管理，所以这次使用 maven+hibernate4+spring3+struts2，毫无疑问，刚开始就需要把相关的jar包通过maven进行导入，不过不得不说这些 相关jar包我也是在网上的一些源码上找的，pom.xml代码如下：
<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.cct</groupId> <artifactId>webFrame1</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>webFrame1 Maven Webapp</name> <url>http://maven.apache.org</url> <!-- 配置了三個遠程倉庫 --> <repositories> <repository> <id>maven</id> <name>Maven Repository Switchboard</name> <layout>default</layout> <url>http://repo1.maven.org/maven2</url> <snapshots> <enabled>false</enabled> </snapshots> </repository> <repository> <id>alibaba-opensource</id> <name>alibaba-opensource</name> <url>http://code.alibabatech.com/mvn/releases/</url> <layout>default</layout> </repository> <repository> <id>alibaba-opensource-snapshot</id> <name>alibaba-opensource-snapshot</name> <url>http://code.alibabatech.com/mvn/snapshots/</url> <layout>default</layout> </repository> </repositories> <!-- 设置编码集，utf-8 --> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <!-- 导入相关jar包 --> <dependencies> <!-- jstl --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.2.1-b03</version> <scope>provided</scope> </dependency> <!-- fastJson --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.1.24</version> </dependency> <!-- mysql数据库驱动 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.21</version> </dependency> <!-- sql server数据库驱动 --> <!-- <dependency> <groupId>net.sourceforge.jtds</groupId> <artifactId>jtds</artifactId> <version>1.2.4</version> </dependency> --> <!-- oracle数据库驱动 --> <!-- <dependency> <groupId>com.oracle</groupId> <artifactId>ojdbc14</artifactId> <version>10.2.0.1.0</version> </dependency> --> <!-- druid --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>0.2.8</version> </dependency> <!-- aspectjweaver --> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.7.0</version> </dependency> <!-- servlet --> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> <!-- log4j --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> <!-- junit --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11-beta-1</version> <scope>test</scope> </dependency> <!-- hibernate4 --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-core</artifactId> <version>4.1.7.Final</version> </dependency> <!-- struts2 --> <dependency> <groupId>org.apache.struts</groupId> <artifactId>struts2-core</artifactId> <version>2.3.4.1</version> <exclusions> <exclusion> <groupId>javassist</groupId> <artifactId>javassist</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.apache.struts</groupId> <artifactId>struts2-spring-plugin</artifactId> <version>2.3.4.1</version> </dependency> <dependency> <groupId>org.apache.struts</groupId> <artifactId>struts2-convention-plugin</artifactId> <version>2.3.4.1</version> </dependency> <!-- spring3 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>3.2.8.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>3.1.2.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>3.1.2.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>3.2.8.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>3.1.2.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-expression</artifactId> <version>3.1.2.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>4.1.7.RELEASE</version> </dependency> <dependency> <groupId>com.mchange</groupId> <artifactId>c3p0</artifactId> <version>0.9.5.2</version> </dependency> <dependency> <groupId>javax.annotation</groupId> <artifactId>javax.annotation-api</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-ehcache</artifactId> <version>4.3.2.Final</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>3.2.11.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>3.2.8.RELEASE</version> </dependency> </dependencies> <build> <finalName>webFrame</finalName> </build> </project>
下面是spring-hibernate.xml代码：
<?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:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
">
<!-- druid数据源 -->
<bean name="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
init-method="init" destroy-method="close">
<property name="url" value="${jdbc_url}" />
<property name="username" value="${jdbc_username}" />
<property name="password" value="${jdbc_password}" />
<!-- 初始化连接大小 -->
<property name="initialSize" value="0" />
<!-- 连接池最大使用连接数量 -->
<property name="maxActive" value="20" />
<!-- 连接池最大空闲 -->
<property name="maxIdle" value="20" />
<!-- 连接池最小空闲 -->
<property name="minIdle" value="0" />
<!-- 获取连接最大等待时间 -->
<property name="maxWait" value="60000" />
<!-- <property name="poolPreparedStatements" value="true" /> <property
name="maxPoolPreparedStatementPerConnectionSize" value="33" /> -->
<property name="validationQuery" value="${validationQuery}" />
<property name="testOnBorrow" value="false" />
<property name="testOnReturn" value="false" />
<property name="testWhileIdle" value="true" />
<!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
<property name="timeBetweenEvictionRunsMillis" value="60000" />
<!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
<property name="minEvictableIdleTimeMillis" value="25200000" />
<!-- 打开removeAbandoned功能 -->
<property name="removeAbandoned" value="true" />
<!-- 1800秒，也就是30分钟 -->
<property name="removeAbandonedTimeout" value="1800" />
<!-- 关闭abanded连接时输出错误日志 -->
<property name="logAbandoned" value="true" />
<!-- 监控数据库 -->
<!-- <property name="filters" value="stat" /> -->
<property name="filters" value="mergeStat" />
</bean>
<!-- session工厂 -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.format_sql">${hibernate.format_sql}</prop>
</props>
</property>
<!-- hbm方式配置,下面两种方式效果一样，在此之前都省去了hibernate.cfg,xml配置 -->
<!-- <property name="mappingDirectoryLocations">
<list>
<value>classpath*:com/cct/entity/User</value>
</list>
</property> -->
<property name="mappingResources">
<list>
<value>com/cct/entity/Department.hbm.xml</value>
<value>com/cct/entity/User.hbm.xml</value>
<value>com/cct/entity/Post.hbm.xml</value>
</list>
</property>
</bean>
<!-- 配置事务 -->
<bean name="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory">
<ref local="sessionFactory"/></property>
</bean>
</beans>
关于数据库连接部分是读取的一个资源文件，在spring.xml通过
<!-- 引入属性文件 -->
<context:property-placeholder location="classpath:config.properties"></context:property-placeholder>
<!--添加另外一份spring文件，分开写让逻辑更清晰-->
<import resource="spring-hibernate.xml"></import>
在spring-hibernate.xml中定义的sessionfactory可以通过在dao层中的@Resource实现注解注入sessionfactory
@Resource private SessionFactory sessionFactory ;
这样的话在到dao层中可以直接得到这个sessionfactory，而在此之前呢，是走过不少弯路的，或者说是钻牛角尖，在以前写的一些程序当中，习惯用的是hibernate3，这样的话在dao层中就可以直接继承HibernateDaoSupport，通过继承它，那么在dao的方法中可以通过super.gethibernateTemplate()中的方法轻松实现增删改查操作，但是而这次选择用hibernate4（简称h4）就像看看其中到底区别在哪，在spring的包中里面有hibernate3的支持和hibernate4的支持，而hibernate4中不再有HibernateDaoSupport和hibernateTemplate()，所以在h4项目的dao层中依旧可以继承HibernateDaoSupport（在spring-hibernate.xml中事务和sessionfactory是用的h4的class），但是在运行的时候就会报错：
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原文地址：http://www.cnblogs.com/AsherBlog/p/5423928.html
