ssm整合 idea+maven版

打开 IDEA 工具，通过 File -> New -> Project，新建项目，或者直接在 IDEA 欢迎页面点击新建项目

“ GroupID ” 是项目组织唯一的标识，实际对应 Java 的包结构，是 main 目录里 Java 的目录结构，

“ ArtifactID ” 是项目的唯一的标识符，实际对应项目的名称，也就是项目根目录的名称，名为 ssmdemo 。

一路next 对于maven 这里不详细介绍

Pom中导入相关依赖

  <dependencies>
    <!-- Begin: Spring依赖 -->
    <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依赖 -->

    <!-- Begin: Spring MVC依赖 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <!-- End: Spring MVC依赖 -->

    <!-- Begin: Mybatis依赖 -->
    <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依赖 -->

    <!-- Begin: 数据库依赖包 -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>${jdbc.driver.version}</version>
      <scope>runtime</scope>
    </dependency>
    <!-- End: 数据库依赖包 -->

    <!-- Begin: aspectj相关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相关jar包-->

    <!-- Begin: Servlet相关依赖包 -->
    <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相关依赖包 -->
  </dependencies>

对于版本集中管理

<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.version>1.8</java.version>
    <jdbc.driver.version>8.0.16</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>
    <jackson.version>2.5.3</jackson.version>
    <mybatis.version>3.2.5</mybatis.version>
    <mybatis-spring.version>1.2.2</mybatis-spring.version>
    <maven.test.skip>true</maven.test.skip>
  </properties>

 完善目录结构

通过 Maven 骨架生成的项目结构只有 main 目录及其目录下的 webapp 目录，这两个目录并不完善，缺少了 java 目录和 resource 目录，因此需要在 main 目录新建这两个目录，过程如下：

main -> New -> Directory -> 新建 Java 目录 main -> New -> Directory -> 新建 Resources 目录

之后需要右键选择 “ Mark Directory as ” ，分别将 java 目录和 resource 目录设置为 “ 源码根目录 ” 和 “ 配置文件目录 ”

之后在 resources 目录下新建 mappers 目录用来存放 MyBatis 的 mapper 文件，整个项目的目录结构就完成了，如下所示：

ssmdemo                                ——项目名称
     ├── src/main/java                  ——Java 源码根目录
            ├── controller              ——控制层目录
            ├── dao                     ——dao层目录
            ├── entity                  ——实体层目录
            ├── service                 ——业务层目录
                └── impl                ——业务实现类目录
            └── utiles                  ——工具类目录
     ├── src/main/resources             ——配置文件根目录
            └── mappers                 ——mapper文件目录
     ├── src/main/webapp                ——网站 Web 资源
     └── pom.xml                        ——pom文件

整合spring 

resource 目录下创建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: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">

    <!-- 自动扫描 -->
    <context:component-scan base-package="com.ssm.demo.dao"/>
    <context:component-scan base-package="com.ssm.demo.service"/>

    <!-- 配置数据源 -->
    <bean id="dataSource"
          class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
        <property name="url"
                  value="jdbc:mysql://localhost:3306/ssm-demo"/>
        <!-- 改为你的地址即可 -->
        <property name="username" value="root"/>
        <property name="password" value="root"/>
    </bean>


    <!-- 配置mybatis的sqlSessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <!-- 自动扫描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"></property>
    </bean>

    <!-- DAO接口所在包名，Spring会自动查找其下的类 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.ssm.demo.dao"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
    </bean>

    <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
    <bean id="transactionManager"
          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <!-- 配置事务通知属性 -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <!-- 定义事务传播属性 -->
        <tx:attributes>
            <tx:method name="insert*" propagation="REQUIRED"/>
            <tx:method name="update*" propagation="REQUIRED"/>
            <tx:method name="upd*" propagation="REQUIRED"/>
            <tx:method name="edit*" propagation="REQUIRED"/>
            <tx:method name="save*" propagation="REQUIRED"/>
            <tx:method name="add*" propagation="REQUIRED"/>
            <tx:method name="new*" propagation="REQUIRED"/>
            <tx:method name="set*" propagation="REQUIRED"/>
            <tx:method name="remove*" propagation="REQUIRED"/>
            <tx:method name="delete*" propagation="REQUIRED"/>
            <tx:method name="del*" propagation="REQUIRED"/>
            <tx:method name="change*" propagation="REQUIRED"/>
            <tx:method name="check*" propagation="REQUIRED"/>
            <tx:method name="get*" propagation="REQUIRED" read-only="true"/>
            <tx:method name="search*" propagation="REQUIRED" read-only="true"/>
            <tx:method name="find*" propagation="REQUIRED" read-only="true"/>
            <tx:method name="load*" propagation="REQUIRED" read-only="true"/>
            <tx:method name="*" propagation="REQUIRED" read-only="true"/>
        </tx:attributes>
    </tx:advice>

    <!-- 配置事务切面 -->
    <aop:config>
        <aop:pointcut id="serviceOperation"
                      expression="(execution(* com.ssm.demo.service.*.*(..)))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="serviceOperation"/>
    </aop:config>

</beans>

整合mybatis 

resource 目录下创建 mybatis-config.xml

<?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.demo.entity"/>
    </typeAliases>
</configuration>

整合springmvc

resource 目录下创建 spring-mvc.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"
       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">

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

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

最重要的是在web.xml中进行配置

<?xml version="1.0" encoding="UTF-8"?>
<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 欢迎页-->
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
  <!--End 欢迎页-->

  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>

  <!--Start 编码过滤器 解决乱码问题-->
  <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 编码过滤器 解决乱码问题-->

  <!--Start spring监听器 -->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <!--End Start spring监听器 -->

  <!--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 -->

</web-app>

完整的项目目录

配置Tomcat 运行项目

启动成功 运行效果

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