SSM整合示例

1、pom.xml配置

<?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>org.example</groupId>
  <artifactId>ssm01</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>ssm01 Maven Webapp</name>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <!-- spring版本号管理 -->
    <spring.version>5.2.7.RELEASE</spring.version>
  </properties>

  <dependencies>

    <!--【IOC核心】-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aop</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>commons-logging</groupId>
      <artifactId>commons-logging</artifactId>
      <version>1.2</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-expression</artifactId>
      <version>${spring.version}</version>
    </dependency>

    <!--【JDBC核心】-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>5.2.6.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-orm</artifactId>
      <version>5.2.4.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>5.2.6.RELEASE</version>
    </dependency>

    <!--【SpringMVC核心】-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <!--文件上传下载-->
    <dependency>
      <groupId>commons-fileupload</groupId>
      <artifactId>commons-fileupload</artifactId>
      <version>1.4</version>
    </dependency>
    <dependency>
      <groupId>commons-io</groupId>
      <artifactId>commons-io</artifactId>
      <version>2.4</version>
    </dependency>

    <!--数据校检-->
    <dependency>
      <groupId>org.hibernate.validator</groupId>
      <artifactId>hibernate-validator</artifactId>
      <version>6.1.5.Final</version>
    </dependency>
    <dependency>
      <groupId>javax.validation</groupId>
      <artifactId>validation-api</artifactId>
      <version>2.0.1.Final</version>
    </dependency>

    <!--jackson依赖 @jsonFormat  @JsonIgnore使用  ObjectMapper与json转换 -->
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-core</artifactId>
      <version>2.11.0</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>2.11.0</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-annotations</artifactId>
      <version>2.11.0</version>
    </dependency>

    <!--【AOP核心】-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aspects</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <!--加强版的面向切面编程(即使目标对象没有实现任何接口也能创建动态代理)-->
    <dependency>
      <groupId>cglib</groupId>
      <artifactId>cglib</artifactId>
      <version>3.2.4</version>
    </dependency>
    <dependency>
      <groupId>aopalliance</groupId>
      <artifactId>aopalliance</artifactId>
      <version>1.0</version>
    </dependency>
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>1.9.5</version>
    </dependency>

    <!--【测试核心】-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <!--junit4测试-->
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.13</version>
      <scope>test</scope>
    </dependency>
    <!--测试可能会出现的问题-->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>4.0.1</version>
    </dependency>

    <!--【getter setter插件 日志核心】-->
    <!--getter setter插件  日志框架-->
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <version>1.18.12</version>
    </dependency>
    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-slf4j-impl</artifactId>
      <version>2.11.0</version>
    </dependency>

    <!--【MyBatis核心】-->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.5.4</version>
    </dependency>
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>2.0.4</version>
    </dependency>
    <!--mybatis逆向工程-->
    <dependency>
      <groupId>org.mybatis.generator</groupId>
      <artifactId>mybatis-generator-core</artifactId>
      <version>1.3.5</version>
    </dependency>
    <!--mybatis分页插件-->
    <dependency>
      <groupId>com.github.pagehelper</groupId>
      <artifactId>pagehelper</artifactId>
      <version>5.1.8</version>
    </dependency>

    <!--【数据库连接驱动】-->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.47</version>
    </dependency>

    <!--【数据库连接池】-->
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>druid</artifactId>
      <version>1.1.18</version>
    </dependency>

  </dependencies>
 <build>
    <resources>
      <!--忽略java下的xml文件-->
      <resource>
        <directory>src/main/java</directory>
        <includes>
          <include>**/*.xml</include>
        </includes>
      </resource>
      <!-- resources无需配置  自动帮我们过滤xml等其他文件。若配置则覆盖默认配置 -->
    </resources>
 </build>
</project>

2、web.xml配置

<?xml version="1.0" encoding="UTF-8"?>
<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_4_0.xsd"
         version="4.0">

  <!--<welcome-file-list>-->
  <!--  <welcome-file>index.jsp</welcome-file>-->
  <!--</welcome-file-list>-->
  
  <!--配置spring IOC容器启动-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <!--指定spirng配置文件位置-->
    <param-value>classpath:spring/spring.xml</param-value>
  </context-param>
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

  <!--springmvc前端控制器-->
  <servlet>
    <servlet-name>dispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring/spring-mvc.xml</param-value>
    </init-param>
    <!--tomcat启动时创建-->
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>dispatcherServlet</servlet-name>
    <!--拦截所有 不拦截*.jsp的请求-->
    <url-pattern>/</url-pattern>
  </servlet-mapping>

  <!--设置字符编码-->
  <filter>
    <filter-name>characterEncodingFilter</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>
    <init-param>
      <param-name>forceRequestEncoding</param-name>
      <param-value>true</param-value>
    </init-param>
    <init-param>
      <param-name>forceResponseEncoding</param-name>
      <param-value>true</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>characterEncodingFilter</filter-name>
    <!--拦截所有-->
    <url-pattern>/*</url-pattern>
  </filter-mapping>

  <!--rest风格支持-->
  <!--使表单支持 delete 和 put请求-->
  <filter>
    <filter-name>hiddenHttpMethodFilter</filter-name>
    <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>hiddenHttpMethodFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

</web-app>

3、mybatis-config.xml配置

<?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>

    <settings>
        <!--是否开启驼峰命名自动映射，即从经典数据库列名 A_COLUMN 映射到经典 Java 属性名 aColumn。-->
        <!--数据库中的字段一般不需要大写,到大写的字母之前加下划线即可，开启后 视图bean直接以驼峰命名即可-->
        <setting name="mapUnderscoreToCamelCase" value="true"/>
        <!--全局性地开启或关闭所有映射器配置文件中已配置的任何缓存。-->
        <setting name="cacheEnabled" value="true"/>
    </settings>

    <!--配置mybatis分页插件-->
    <plugins>
        <plugin interceptor="com.github.pagehelper.PageInterceptor"></plugin>
    </plugins>
    
</configuration>

4、db.propertoes数据库连接文件

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/test?serverTimeZone=Asia/Shanghai&useUnicode=true&characterEncoding=UTF-8&useSSL=false
jdbc.uername=root
jdbc.password=123456

5、log4j2.xml日志文件

<?xml version="1.0" encoding="UTF-8"?>
<configuration status="INFO">
    <appenders>
        <Console name="Console" target="SYSTEM_OUT">
            <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
        </Console>
        <RollingFile name="RollingFile" fileName="logs/app.log"
                     filePattern="logs/$${date:yyyy-MM}/app-%d{MM-dd-yyyy}-%i.log.gz">
            <PatternLayout pattern="%d{yyyy.MM.dd 'at' HH:mm:ss z} %-5level %class{36} %L %M - %msg%xEx%n"/>
            <SizeBasedTriggeringPolicy size="5 MB"/>
        </RollingFile>
    </appenders>
    <loggers>
        <root level="DEBUG">
            <appender-ref ref="Console"/>
            <appender-ref ref="RollingFile"/>
        </root>
    </loggers>
</configuration>

6、spring.xml配置

<?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:mybatis-spring="http://mybatis.org/schema/mybatis-spring"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring.xsd">
    
    <!--配置spirng包扫描。除了被@Controllers标注的不扫描外，其他的注解都扫描-->
    <context:component-scan base-package="org.lc">
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

    <!--引入数据库基本配置文件-->
    <context:property-placeholder location="classpath:dbconfig.properties"/>

    <!--druid连接池配置参考地址 https://github.com/alibaba/druid/wiki/DruidDataSource%E9%85%8D%E7%BD%AE-->
    <bean id="druidDataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="${jdbc.driver}"></property>
        <property name="url" value="${jdbc.url}"></property>
        <property name="username" value="${jdbc.uername}"></property>
        <property name="password" value="${jdbc.password}"></property>
        <!-- 配置初始化大小、最小、最大 -->
        <property name="initialSize" value="5" />
        <property name="minIdle" value="5" />
        <property name="maxActive" value="10" />
        <!-- 配置从连接池获取连接等待超时的时间 -->
        <property name="maxWait" value="10000" />
        <!-- 配置间隔多久启动一次DestroyThread，对连接池内的连接才进行一次检测，单位是毫秒。
            检测时:1.如果连接空闲并且超过minIdle以外的连接，如果空闲时间超过minEvictableIdleTimeMillis设置的值则直接物理关闭。2.在minIdle以内的不处理。
        -->
        <property name="timeBetweenEvictionRunsMillis" value="60000" />
        <!-- 配置一个连接在池中最大空闲时间，单位是毫秒 -->
        <property name="minEvictableIdleTimeMillis" value="300000" />

        <!-- 设置从连接池获取连接时是否检查连接有效性，true时，如果连接空闲时间超过minEvictableIdleTimeMillis进行检查，否则不检查;false时，不检查 -->
        <property name="testWhileIdle" value="true" />
        <!-- 设置从连接池获取连接时是否检查连接有效性，true时，每次都检查;false时，不检查 -->
        <property name="testOnBorrow" value="false" />
        <!-- 设置往连接池归还连接时是否检查连接有效性，true时，每次都检查;false时，不检查 -->
        <property name="testOnReturn" value="false" />

        <property name="poolPreparedStatements" value="true" />
        <property name="maxOpenPreparedStatements" value="20" />

        <property name="asyncInit" value="true" />
    </bean>

    <!--配置mybatis操作数据库-->
    <!--得到SqlSessionFatory-->
    <bean class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--引用mybatis的配置文件-->
        <property name="configLocation" value="classpath:mybatis/mybatis-config.xml"></property>
        <!--指定数据源-->
        <property name="dataSource" ref="druidDataSource"></property>
        <!--指定xml位置-->
        <property name="mapperLocations" value="classpath:mybatis/mapper/**/*.xml"></property>
    </bean>

    <!--扫描所有的dao接口加入到IOC容器中-->
    <!--<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">-->
    <!--    <property name="basePackage" value="org.lc.dao"></property>-->
    <!--</bean>-->
    <!--或者-->
    <mybatis-spring:scan base-package="org.lc.dao"></mybatis-spring:scan>

    <!--配置事务控制。配置事务管理器，让我们的事务管理器控制我们的数据源的链接的关闭和提交-->
    <bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="druidDataSource"></property>
    </bean>

    <!--配置基于xml的事务。指定切点并将通知切入指定连接点-->
    <aop:config>
        <!--全局切点表达式-->
        <aop:pointcut id="pc1" expression="execution(* org.lc.service..*(..))"/>
        <!--事务增强 引用配置增强的方法及属性，引用切点-->
        <aop:advisor advice-ref="advic1t1" pointcut-ref="pc1"></aop:advisor>
    </aop:config>

    <!--配置事务增强的方法及属性-->
    <tx:advice id="advic1t1" transaction-manager="dataSourceTransactionManager">
        <!--配置事务属性-->
        <tx:attributes>
            <!--任何方法的任何异常都回滚(方法必须throw抛出异常才回滚,无论是运行时异常还是非运行异常)-->
            <tx:method name="*" rollback-for="java.lang.Exception"/>
            <!--设置添加的方法 隔离级别为总是新建一个事务运行。为本来非运行时异常设为可回滚的异常-->
            <tx:method name="add*" propagation="REQUIRES_NEW" isolation="REPEATABLE_READ" rollback-for="java.lang.Exception"></tx:method>
        </tx:attributes>
    </tx:advice>

</beans>

7、spring-mvc.xml配置

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

    <!--springmvc只扫描@controller.禁用默认的扫描规则-->
    <context:component-scan base-package="org.lc" use-default-filters="false">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

    <!--配置jsp视图解析器-->
    <!--通过控制器直接返回的字符串 视图解析器自动帮我们添加前缀和后缀-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!--只能得到在WEN-INF/pages下的jsp文件-->
        <property name="prefix" value="/WEB-INF/pages/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>

    <!--配置文件上传和下载-->
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <!--设置编码-->
        <property name="defaultEncoding" value="utf-8"></property>
        <!--文件上传最大为5MB-->
        <property name="maxUploadSize" value="#{1024*1024*5}"></property>
    </bean>

    <!--处理静态资源-->
    <mvc:default-servlet-handler/>
    <!--处理动态资源-->
    <mvc:annotation-driven>
        <!-- 配置消息转换器 解决@ResponseBody返回乱码 -->
        <mvc:message-converters register-defaults="true">
            <bean class="org.springframework.http.converter.StringHttpMessageConverter">
                <property name="defaultCharset" value="UTF-8"/>
            </bean>
        </mvc:message-converters>
    </mvc:annotation-driven>

</beans>

8、目录结构图

1)整体目录

2)分层目录