1. 整合思路: 各元件的關聯關係
2. 配置檔案: 組合各元件的關係
3. ssm的使用:   jsp + jstl + servlet = mysql的curd操作

 part1: 組織配置檔案  (整合ssm)

使用idea 新建module-->java web--->add framework support: maven, 專案結構如下

第一步:  使用maven 管理jar包依賴, 配置pomx.xml如下

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
        </dependency>
  <!--mybatis-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.17</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.2.1</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.0</version>
        </dependency>
        <dependency>
            <groupId>c3p0</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.1.2</version>
        </dependency>

<!--spring-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>4.3.5.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>4.3.5.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>4.3.5.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>4.3.5.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.8.10</version>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjrt</artifactId>
            <version>1.6.1</version>
        </dependency>

 <!-- jstl 標籤庫-->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
 

第二步: 配置spring +mybatis

( 在resource資料夾建立mybatis和spring的配置檔案,  在bean包建立javabean, 在service包配置service類 )

A,   resource資料夾: mybatis-config.xml,  UserMapper.xml,   beans.xml

 <!--檔名: 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>

    <!--別名-->
    <typeAliases>
        <typeAlias type="com.bean.User" alias="_user" />
    </typeAliases>

    <mappers>
        <mapper resource="UserMapper.xml"/>
    </mappers>
</configuration>
 

<!--檔名:  UserMapper.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<!-- 定義名字空間 -->
<mapper namespace="users">
    <!-- 獲得生成的id欄位-->
    <insert id="insert" useGeneratedKeys="true" keyProperty="id">
	insert into users2(name,sex) values(#{name},#{sex})
    </insert>

    <update id="update" >
        update users2 set name=#{name}, sex=#{sex} where id=#{id}
    </update>

    <select id="selectById" resultType="_user" >
        select * from users2 where id=#{id}
    </select>
    <select id="selectAll" resultType="_user" >
        select * from users2
    </select>

    <delete id="delete">
        delete from users2 where id=#{id}
    </delete>
</mapper>
 

<!-- 配置檔案: beans.xml -->
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       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-4.3.xsd
               http://www.springframework.org/schema/tx
               http://www.springframework.org/schema/tx/spring-tx-4.3.xsd
               http://www.springframework.org/schema/aop
               http://www.springframework.org/schema/aop/spring-aop-4.3.xsd">

    <!-- 事務通知 -->
    <tx:advice id="txAdvice" transaction-manager="txManager">
        <tx:attributes>
            <tx:method name="insert*" isolation="DEFAULT" propagation="REQUIRED" />
            <tx:method name="update*" isolation="DEFAULT" propagation="REQUIRED" />
            <tx:method name="delete*" isolation="DEFAULT" propagation="REQUIRED" />
            <tx:method name="select*" isolation="DEFAULT" propagation="REQUIRED" read-only="true"/>
            <tx:method name="*" isolation="DEFAULT" propagation="REQUIRED" />
        </tx:attributes>
    </tx:advice>
    <aop:config>
        <aop:advisor advice-ref="txAdvice" pointcut="execution(* *..*Service.*(..))" />
    </aop:config>
    <!-- 事務管理器 -->
    <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>

    <!--連線池： c3p0-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/db"></property>
        <property name="user" value="root"></property>
        <property name="password" value="daitoue"></property>

        <property name="initialPoolSize" value="3"></property>
        <property name="maxPoolSize" value="10"></property>
    </bean>

    <!--session工廠-->
    <bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <property name="configLocation" value="classpath:mybatis-config.xml"/>          
    </bean>

    <!--掃描dao層-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.dao" />
        <property name="sqlSessionFactoryBeanName" value="sessionFactory"/>
    </bean>
</beans>

第二步: