使用IDEA整合SSM框架

一、搭建環境
jdk10.0.2
Mysql8
tomcat9
maven3.5.4
idea2018.1.4

二、框架整合
1、使用idea創建一個maven項目，如下所示：

在main目錄下分別創建java目錄和resource目錄，項目目錄結構如下圖：

其中java目錄放置java文件，resource目錄放置配置文件。
2、項目結構搭建以後，使用maven引入依賴，pom.xml內容如下：

<?xml version="1.0" encoding="UTF-8"?>

<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/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>com.ssm.demo</groupId>
  <artifactId>ssm-demo</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>ssm-demo</name>
  <!-- FIXME change it to the project's website -->
  <url>http://maven.apache.org</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <spring.version>4.2.4.RELEASE</spring.version>
    <java.verseion>10.0.2</java.verseion>
    <jdbc.driver.version>8.0.12</jdbc.driver.version>
    <aspectj.version>1.7.4</aspectj.version>
    <javax.servlet-api.version>3.1.0</javax.servlet-api.version>
    <jsp-api.version>2.2</jsp-api.version>
    <jstl.version>1.2</jstl.version>
    <mybatis.version>3.2.5</mybatis.version>
    <mybatis-spring.version>1.2.2</mybatis-spring.version>
    <maven.test.skip>true</maven.test.skip>
    <alibaba.druid>1.1.10</alibaba.druid>
  </properties>

  <dependencies>
    <!-- Begin:spring依賴 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context-support</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <!-- End:spring依賴-->

    <!-- Begin:springMVC依賴-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <!-- End:springMVC依賴 -->
    <!-- Begin:mybatis依賴-->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>${mybatis.version}</version>
    </dependency>
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>${mybatis-spring.version}</version>
    </dependency>
    <!-- End:mybatis依賴-->
    <!-- Begin:數據庫依賴包-->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>${jdbc.driver.version}</version>
      <scope>runtime</scope>
    </dependency>
    <!-- End:數據庫依賴包-->
    <!-- Begin:aspectj相關jar包-->
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjrt</artifactId>
      <version>${aspectj.version}</version>
    </dependency>
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>${aspectj.version}</version>
    </dependency>
    <!-- End:aspectj相關jar包-->
    <!-- Begin:servlet相關依賴包-->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>${javax.servlet-api.version}</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>javax.servlet.jsp</groupId>
      <artifactId>jsp-api</artifactId>
      <version>${jsp-api.version}</version>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
      <version>${jstl.version}</version>
    </dependency>
    <!-- End:Servlet相關依賴-->
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
    <!-- 阿里 druid 數據源 -->
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>druid</artifactId>
      <version>${alibaba.druid}</version>
    </dependency>
  </dependencies>

  <build>
    <finalName>ssm-demo</finalName>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.8.0</version>
        <configuration>
          <source>10.0.2</source>
          <target>10.0.2</target>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>

其中，spring使用的是4.2.4.RELEASE版本，mybatis使用的是3.2.5，使用阿里的Druid作爲數據庫連接池。
需要特別指出的是，由於使用了Mysql8數據庫，因此mysql數據庫依賴包也必須使用6版本以上的，此次整合使用的是8.0.12，同時需要注意的是Mysql8連接url需要制定時區及是否採用ssl連接，建議是不使用ssl連接，url如下：
jdbc:mysql://localhost:3306/ssm_demo?serverTimezone=Hongkong&useUnicode=true&characterEncoding=utf8&useSSL=false
3、創建springMVC框架的配置文件spring-mvc.xml，內容如下：

<?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"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">

    <!-- 使用註解的包，包括子集 -->
    <context:component-scan base-package="com.ssm.controller"/>

    <!-- 視圖解析器 -->
    <bean id="viewResolver"
          class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/"/>
        <property name="suffix" value=".jsp"></property>
    </bean>

</beans>

4、創建mybatis框架的配置文件mybatis-config.xml，內容如下：

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <typeAliases>
        <package name="com.ssm.entity"/>
    </typeAliases>
</configuration>

5、創建spring框架的配置文件application，實現對SpringMVC和Mybatis框架的整合，內容如下：

<?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/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">
    <!-- 自動掃描 -->
    <context:component-scan base-package="com.ssm.dao"/>
    <context:component-scan base-package="com.ssm.service"/>
    <!-- 加載配置文件-->
    <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="location" value="classpath:dbConfig.properties"/>
    </bean>
    <!-- 配置數據源 -->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
        <property name="url" value="${url}" />
        <property name="username" value="${username}" />
        <property name="password" value="${password}" />
        <property name="driverClassName" value="${driverClassName}" />
        <property name="filters" value="${filters}" />
        <!-- 最大併發連接數 -->
        <property name="maxActive" value="${maxActive}" />
        <!-- 初始化連接數量 -->
        <property name="initialSize" value="${initialSize}" />
        <!-- 配置獲取連接等待超時的時間 -->
        <property name="maxWait" value="${maxWait}" />
        <!-- 最小空閒連接數 -->
        <property name="minIdle" value="${minIdle}" />
        <!-- 配置間隔多久才進行一次檢測，檢測需要關閉的空閒連接，單位是毫秒 -->
        <property name="timeBetweenEvictionRunsMillis" value="${timeBetweenEvictionRunsMillis}" />
        <!-- 配置一個連接在池中最小生存的時間，單位是毫秒 -->
        <property name="minEvictableIdleTimeMillis" value="${minEvictableIdleTimeMillis}" />
        <property name="validationQuery" value="${validationQuery}" />
        <property name="testWhileIdle" value="${testWhileIdle}" />
        <property name="testOnBorrow" value="${testOnBorrow}" />
        <property name="testOnReturn" value="${testOnReturn}" />
        <property name="maxOpenPreparedStatements" value="${maxOpenPreparedStatements}" />
        <!-- 打開 removeAbandoned 功能 -->
        <property name="removeAbandoned" value="${removeAbandoned}" />
        <!-- 1800 秒，也就是 30 分鐘 -->
        <property name="removeAbandonedTimeout" value="${removeAbandonedTimeout}" />
        <!-- 關閉 abandoned 連接時輸出錯誤日誌 -->
        <property name="logAbandoned" value="${logAbandoned}" />
    </bean>
    <!-- 配置mybatis的sqlSessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <!-- 自動掃描mappers.xml文件 -->
        <property name="mapperLocations" value="classpath:mappers/*.xml"></property>
        <!-- mybatis配置文件 -->
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
    </bean>
    <!-- DAO接口所在包名，Spring會自動查找其下的類 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.ssm.dao"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>
    <!-- (事務管理)transaction manager, use JtaTransactionManager for global tx -->
    <bean id="transactionManager"
          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>
    <!-- 配置事務通知屬性 -->
    <tx:advice id="txAdvice">
        <!-- 定義事務傳播屬性 -->
        <tx:attributes>
            <tx:method name="insert*"/>
            <tx:method name="update*"/>
            <tx:method name="upd*"/>
            <tx:method name="edit*"/>
            <tx:method name="save*"/>
            <tx:method name="add*"/>
            <tx:method name="new*"/>
            <tx:method name="set*"/>
            <tx:method name="remove*"/>
            <tx:method name="delete*"/>
            <tx:method name="del*"/>
            <tx:method name="change*"/>
            <tx:method name="check*"/>
            <tx:method name="get*" read-only="true"/>
            <tx:method name="search*" read-only="true"/>
            <tx:method name="find*" read-only="true"/>
            <tx:method name="load*" read-only="true"/>
            <tx:method name="*" read-only="true"/>
        </tx:attributes>
    </tx:advice>
    <!-- 配置事務切面 -->
    <aop:config>
        <aop:pointcut id="serviceOperation"
                      expression="(execution(* com.ssm.service.*.*(..)))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="serviceOperation"/>
    </aop:config>


</beans>

配置文件中的數據配置文件dbConfig.properties內容如下：

url=jdbc:mysql://localhost:3306/ssm_demo?serverTimezone=Hongkong&useUnicode=true&characterEncoding=utf8&useSSL=false
driverClassName=com.mysql.cj.jdbc.Driver
username=root
password=123456
filters=state
initialSize=1
maxActive=20
minIdle=10
maxWait=6000
timeBetweenEvictionRunsMillis=60000
minEvictableIdleTimeMillis=300000
validationQuery=SELECT 'x'
testWhileIdle=true
testOnBorrow=false
testOnReturn=false
maxOpenPreparedStatements=20
removeAbandoned=true
removeAbandonedTimeout=1800
logAbandoned=true

在web.xml中配置servlet、fliter等配置項，內容如下：

<!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 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
         id="WebApp_ID" version="2.5">
  <display-name>ssm-demo</display-name>
  <!--Start 歡迎頁-->
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
  <!--End 歡迎頁-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>
  <!--Start 編碼過濾器 解決亂碼問題-->
  <filter>
    <filter-name>encodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <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>
  <!--End 編碼過濾器 解決亂碼問題-->
  <!--Start spring監聽器 -->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <!--End Start spring監聽器 -->
  <!-- 防止spring內存溢出監聽器，比如quartz -->
  <listener>
    <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
  </listener>
  <!--Start spring mvc servlet-->
  <servlet>
    <servlet-name>springMVC</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring-mvc.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <!--End spring mvc servlet-->
  <!--Start servlet-mapping -->
  <servlet-mapping>
    <servlet-name>springMVC</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>
  <!--End servlet-mapping -->
  <!-- Druid過濾 -->
  <servlet>
    <servlet-name>DruidStatView</servlet-name>
    <servlet-class>com.alibaba.druid.support.http.StatViewServlet</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>DruidStatView</servlet-name>
    <url-pattern>/druid/*</url-pattern>
  </servlet-mapping>
  <filter>
    <filter-name>druidWebStatFilter</filter-name>
    <filter-class>com.alibaba.druid.support.http.WebStatFilter</filter-class>
    <init-param>
      <param-name>exclusions</param-name>
      <param-value>/public/*,*.js,*.css,/druid*,*.jsp,*.swf</param-value>
    </init-param>
    <init-param>
      <param-name>principalSessionName</param-name>
      <param-value>sessionInfo</param-value>
    </init-param>
    <init-param>
      <param-name>profileEnable</param-name>
      <param-value>true</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>druidWebStatFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>

以上即實現了對SSM框架的整合，需要注意的是由於使用了Druid連接池，且開啓了filters=state特性（sql性能監控），因此需要在web.xml中進行相應配置，即上述註釋以下的內容。

6、啓動tomcat進行測試驗證。