使用IDEA整合SSM框架

一、搭建环境
jdk10.0.2
Mysql8
tomcat9
maven3.5.4
idea2018.1.4

二、框架整合
1、使用idea创建一个maven项目，如下所示：

在main目录下分别创建java目录和resource目录，项目目录结构如下图：

其中java目录放置java文件，resource目录放置配置文件。
2、项目结构搭建以后，使用maven引入依赖，pom.xml内容如下：

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

  <groupId>com.ssm.demogroupId>
  <artifactId>ssm-demoartifactId>
  <version>1.0-SNAPSHOTversion>
  <packaging>warpackaging>

  <name>ssm-demoname>
  
  <url>http://maven.apache.orgurl>

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

  <dependencies>
    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-coreartifactId>
      <version>${spring.version}version>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-webartifactId>
      <version>${spring.version}version>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-context-supportartifactId>
      <version>${spring.version}version>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-jdbcartifactId>
      <version>${spring.version}version>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-txartifactId>
      <version>${spring.version}version>
    dependency>
    

    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-webmvcartifactId>
      <version>${spring.version}version>
    dependency>
    
    
    <dependency>
      <groupId>org.mybatisgroupId>
      <artifactId>mybatisartifactId>
      <version>${mybatis.version}version>
    dependency>
    <dependency>
      <groupId>org.mybatisgroupId>
      <artifactId>mybatis-springartifactId>
      <version>${mybatis-spring.version}version>
    dependency>
    
    
    <dependency>
      <groupId>mysqlgroupId>
      <artifactId>mysql-connector-javaartifactId>
      <version>${jdbc.driver.version}version>
      <scope>runtimescope>
    dependency>
    
    
    <dependency>
      <groupId>org.aspectjgroupId>
      <artifactId>aspectjrtartifactId>
      <version>${aspectj.version}version>
    dependency>
    <dependency>
      <groupId>org.aspectjgroupId>
      <artifactId>aspectjweaverartifactId>
      <version>${aspectj.version}version>
    dependency>
    
    
    <dependency>
      <groupId>javax.servletgroupId>
      <artifactId>javax.servlet-apiartifactId>
      <version>${javax.servlet-api.version}version>
      <scope>providedscope>
    dependency>
    <dependency>
      <groupId>javax.servlet.jspgroupId>
      <artifactId>jsp-apiartifactId>
      <version>${jsp-api.version}version>
    dependency>
    <dependency>
      <groupId>javax.servletgroupId>
      <artifactId>jstlartifactId>
      <version>${jstl.version}version>
    dependency>
    
    <dependency>
      <groupId>junitgroupId>
      <artifactId>junitartifactId>
      <version>4.11version>
      <scope>testscope>
    dependency>
    
    <dependency>
      <groupId>com.alibabagroupId>
      <artifactId>druidartifactId>
      <version>${alibaba.druid}version>
    dependency>
  dependencies>

  <build>
    <finalName>ssm-demofinalName>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.pluginsgroupId>
        <artifactId>maven-compiler-pluginartifactId>
        <version>3.8.0version>
        <configuration>
          <source>10.0.2source>
          <target>10.0.2target>
        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作为数据库连接池。
需要特别指出的是，由于使用了Mysql8数据库，因此mysql数据库依赖包也必须使用6版本以上的，此次整合使用的是8.0.12，同时需要注意的是Mysql8连接url需要制定时区及是否采用ssl连接，建议是不使用ssl连接，url如下：
jdbc:mysql://localhost:3306/ssm_demo?serverTimezone=Hongkong&useUnicode=true&characterEncoding=utf8&useSSL=false
3、创建springMVC框架的配置文件spring-mvc.xml，内容如下：

<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">

    
    <context:component-scan base-package="com.ssm.controller"/>

    
    <bean id="viewResolver"
          class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/"/>
        <property name="suffix" value=".jsp">property>
    bean>

beans>

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

<configuration>
    <typeAliases>
        <package name="com.ssm.entity"/>
    typeAliases>
configuration>

5、创建spring框架的配置文件application，实现对SpringMVC和Mybatis框架的整合，内容如下：

<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">
    
    <context:component-scan base-package="com.ssm.dao"/>
    <context:component-scan base-package="com.ssm.service"/>
    
    <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="location" value="classpath:dbConfig.properties"/>
    bean>
    
    <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}" />
        
        <property name="maxActive" value="${maxActive}" />
        
        <property name="initialSize" value="${initialSize}" />
        
        <property name="maxWait" value="${maxWait}" />
        
        <property name="minIdle" value="${minIdle}" />
        
        <property name="timeBetweenEvictionRunsMillis" value="${timeBetweenEvictionRunsMillis}" />
        
        <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}" />
        
        <property name="removeAbandoned" value="${removeAbandoned}" />
        
        <property name="removeAbandonedTimeout" value="${removeAbandonedTimeout}" />
        
        <property name="logAbandoned" value="${logAbandoned}" />
    bean>
    
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        
        <property name="mapperLocations" value="classpath:mappers/*.xml">property>
        
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
    bean>
    
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.ssm.dao"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    bean>
    
    <bean id="transactionManager"
          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    bean>
    
    <tx:advice id="txAdvice">
        
        <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>
    
    <aop:config>
        <aop:pointcut id="serviceOperation"
                      expression="(execution(* com.ssm.service.*.*(..)))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="serviceOperation"/>
    aop:config>


beans>

配置文件中的数据配置文件dbConfig.properties内容如下：

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等配置项，内容如下：

<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-demodisplay-name>
  
  <welcome-file-list>
    <welcome-file>index.jspwelcome-file>
  welcome-file-list>
  
  <context-param>
    <param-name>contextConfigLocationparam-name>
    <param-value>classpath:applicationContext.xmlparam-value>
  context-param>
  
  <filter>
    <filter-name>encodingFilterfilter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
    <init-param>
      <param-name>encodingparam-name>
      <param-value>UTF-8param-value>
    init-param>
  filter>
  <filter-mapping>
    <filter-name>encodingFilterfilter-name>
    <url-pattern>/*url-pattern>
  filter-mapping>
  
  
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
  listener>
  
  
  <listener>
    <listener-class>org.springframework.web.util.IntrospectorCleanupListenerlistener-class>
  listener>
  
  <servlet>
    <servlet-name>springMVCservlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
    <init-param>
      <param-name>contextConfigLocationparam-name>
      <param-value>classpath:spring-mvc.xmlparam-value>
    init-param>
    <load-on-startup>1load-on-startup>
  servlet>
  
  
  <servlet-mapping>
    <servlet-name>springMVCservlet-name>
    <url-pattern>*.dourl-pattern>
  servlet-mapping>
  
  
  <servlet>
    <servlet-name>DruidStatViewservlet-name>
    <servlet-class>com.alibaba.druid.support.http.StatViewServletservlet-class>
  servlet>
  <servlet-mapping>
    <servlet-name>DruidStatViewservlet-name>
    <url-pattern>/druid/*url-pattern>
  servlet-mapping>
  <filter>
    <filter-name>druidWebStatFilterfilter-name>
    <filter-class>com.alibaba.druid.support.http.WebStatFilterfilter-class>
    <init-param>
      <param-name>exclusionsparam-name>
      <param-value>/public/*,*.js,*.css,/druid*,*.jsp,*.swfparam-value>
    init-param>
    <init-param>
      <param-name>principalSessionNameparam-name>
      <param-value>sessionInfoparam-value>
    init-param>
    <init-param>
      <param-name>profileEnableparam-name>
      <param-value>trueparam-value>
    init-param>
  filter>
  <filter-mapping>
    <filter-name>druidWebStatFilterfilter-name>
    <url-pattern>/*url-pattern>
  filter-mapping>
web-app>

以上即实现了对SSM框架的整合，需要注意的是由于使用了Druid连接池，且开启了filters=state特性（sql性能监控），因此需要在web.xml中进行相应配置，即上述 注释以下的内容。

6、启动tomcat进行测试验证。