以繼承的思想寫Spring mvc + spring + hibernate + maven 連線 mysql資料庫
阿新 • • 發佈:2018-12-16
以繼承的思想寫Spring mvc + spring + hibernate 連結 mysql
在寫ssh中發現有很多重複的程式碼,本人比較懶不願寫重複的方法。學習oop是為了省略程式碼量。兩者結合就有了今天的程式碼。 原理 建立一個父類的表(虛擬表),實現一些重複的方法,用子類的呼叫父類的方法。 實際 父類:obj 子類:user
檔案目錄
- pom.xml
<!-- hibernate start -->
<dependency>
<groupId>org.hibernate</groupId>
< artifactId>hibernate-core</artifactId>
<version>4.3.11.Final</version>
</dependency>
<dependency>
<groupId>commons-collections</groupId>
<artifactId>commons-collections</artifactId>
<version>3.2.1</version>
</dependency>
<dependency>
<groupId>javax.transaction</groupId>
<artifactId>jta</artifactId>
<version>1.1</version>
</dependency>
<!-- hibernate end -->
<!--資料來源-->
<dependency>
<groupId> com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.18</version>
</dependency>
<!--資料庫驅動包-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.38</version>
</dependency>
<!-- Spring start -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>4.2.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.2.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.2.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.8</version>
</dependency>
<!-- Spring end -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.21</version>
</dependency>
<!-- sturts2 start -->
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-spring-plugin</artifactId>
<version>2.3.24</version>
<exclusions>
<exclusion>
<groupId>org.springframework </groupId>
<artifactId>spring-beans</artifactId>
</exclusion>
<exclusion>
<groupId>org.springframework </groupId>
<artifactId>spring-core</artifactId>
</exclusion>
<exclusion>
<groupId>org.springframework </groupId>
<artifactId>spring-context</artifactId>
</exclusion>
<exclusion>
<groupId>org.springframework </groupId>
<artifactId>spring-web</artifactId>
</exclusion>
<exclusion>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.2</version>
</dependency>
<!-- sturts2 end -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<!--可以用c:if等-->
<!-- https://mvnrepository.com/artifact/jstl/jstl -->
<!-- https://mvnrepository.com/artifact/javax.servlet/jstl -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
- db.properties資料庫配置
#資料庫驅動 如果不配置,系統會根據url自動識別 這裡是druid包的原因
#driverClassName=com.mysql.jdbc.Driver
#URL
druid.url=jdbc:mysql://127.0.0.1:3306/ssh
#使用者名稱
druid.username=root
#密碼
druid.password=root
filters=stat
druid.initialSize=5
#最大連線池數量
druid.maxActive=300
#獲取連線時最大等待時間,單位毫秒
druid.maxWait=60000
#Destroy執行緒會檢測連線的間隔時間
druid.timeBetweenEvictionRunsMillis=60000
minEvictableIdleTimeMillis=300000
#用來檢測連線是否有效的sql,要求是一個查詢語句
validationQuery=SELECT 1
#建議配置為true,不影響效能,並且保證安全性。申請連線的時候檢測,
#如果空閒時間大於timeBetweenEvictionRunsMillis,執行validationQuery檢測連線是否有效。
testWhileIdle=true
#申請連線時執行validationQuery檢測連線是否有效,做了這個配置會降低效能。
testOnBorrow=false
#歸還連線時執行validationQuery檢測連線是否有效,做了這個配置會降低效能
testOnReturn=false
#是否快取preparedStatement,也就是PSCache。PSCache對支援遊標的資料庫效能提升巨大,比如說oracle。在mysql下建議關閉。
poolPreparedStatements=false
maxPoolPreparedStatementPerConnectionSize=200
- 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:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:jee="http://www.springframework.org/schema/jee"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/jee
http://www.springframework.org/schema/jee/spring-jee.xsd">
<!-- 引入外部資原始檔 -->
<context:property-placeholder location="classpath:db.properties"/>
<!-- 引入事務配置檔案 -->
<import resource="classpath:applicationContext-tx.xml"/>
<!-- 開啟註解掃描 -->
<context:component-scan base-package="com.mokong"></context:component-scan>
<!-- 配置資料來源 -->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<!-- 資料庫連線地址 -->
<property name="url" value="${druid.url}"></property>
<!-- 使用者名稱 -->
<property name="username" value="${druid.username}"></property>
<!-- 密碼 -->
<property name="password" value="${druid.password}"></property>
<!-- 最大連線池數量 -->
<property name="maxActive" value="${druid.maxActive}"></property>
<!-- 初始化連線數 -->
<property name="initialSize" value="${druid.initialSize}"></property>
<!-- 獲取連線時最大等待時間,單位毫秒 -->
<property name="maxWait" value="${druid.maxWait}"></property>
<!-- Destroy執行緒會檢測連線的間隔時間 -->
<property name="timeBetweenEvictionRunsMillis" value="${druid.timeBetweenEvictionRunsMillis}"></property>
</bean>
<!-- Session工廠配置 -->
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<!-- 通過configLocations可以載入並讀取hibernate的全域性配置檔案 -->
<!-- <property name="configLocations" value="classpath:hibernate.cfg.xml"></property> -->
<!-- hibernate相關配置 -->
<property name="hibernateProperties">
<props>
<!-- 資料庫方言 -->
<prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
<!-- 是否顯示sql -->
<prop key="hibernate.show_sql">true</prop>
<!--是否讓sql格式化 -->
<prop key="hibernate.format_sql">true</prop>
<!-- 是否通過實體類自動生成資料庫表 -->
<prop key="hibernate.hbm2ddl.auto">update</prop>
</props>
</property>
<!-- 如果使用配置對映檔案的方式 -->
<!-- <property name="mappingResources">
<list>
<value>xxxx.hbm.xml</value>
</list>
</property> -->
<!-- 掃描實體類註解所在包 -->
<property name="packagesToScan" value="com.mokong.*.model"></property>
</bean>
</beans>
- applicationContext-tx.xml事務的配置檔案 此處沒有開啟註解
<?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: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/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- 事務管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!-- 管理資料來源 -->
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 通知 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<!-- 事務的傳播行為 -->
<tx:attributes>
<!-- 必須開啟事務 -->
<tx:method name="add*" propagation="REQUIRED"/>
<tx:method name="save*" propagation="REQUIRED"/>
<tx:method name="update*" propagation="REQUIRED"/>
<tx:method name="modify*" propagation="REQUIRED"/>
<tx:method name="delete*" propagation="REQUIRED"/>
<tx:method name="remove*" propagation="REQUIRED"/>
<!-- 只讀事務 -->
<tx:method name="get*" propagation="SUPPORTS" read-only="true"/>
<tx:method name="query*" propagation="SUPPORTS" read-only="true"/>
<tx:method name="find*" propagation="SUPPORTS" read-only="true"/>
<tx:method name="select*" propagation="SUPPORTS" read-only="true"/>
</tx:attributes>
</tx:advice>
<!-- 配置切面 -->
<aop:config>
<aop:advisor advice-ref="txAdvice" pointcut="execution(* com.mokong.*.service..*.*(..))"/>
</aop:config>
</beans>
- log4j.properties
# Global logging configuration
log4j.rootLogger=DEBUG, stdout
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n
- 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>
<package name="user" namespace="/" extends="struts-default">
<!--<package name="user" extends="struts-default" namespace="/">-->
<action name="user-*" class="userWeb" method="{1}">
<result name="error">/hint/error.jsp</result>
<result name="save">/user/userList.jsp</result>
</action>
</package>
</struts>
- web.xml
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<!-- 載入Spring的配置檔案 -->
<context-param>
<param-name>contextConfigLocation</param-name&