IDEA整合sm框架

一、创建maven项目

二、导入jar包

需要的jar包：

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 <!--依赖注入-->

    <dependencies>

        <!--单元测试-->
        <!-- https://mvnrepository.com/artifact/junit/junit -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.13</version>
            <scope>test</scope>
        </dependency>

        <!--spring依赖-->
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.2.7.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.2.7.RELEASE</version>
        </dependency>

        <!--数据库驱动和数据库连接池  -->
        <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.9</version>
        </dependency>
        
   <!-- https://mvnrepository.com/artifact/commons-dbcp/commons-dbcp -->
        <dependency>
            <groupId>commons-dbcp</groupId>
            <artifactId>commons-dbcp</artifactId>
            <version>1.4</version>
        </dependency>
        
        
        <!--mybatis依赖-->
        <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.5</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.5</version>
        </dependency>

        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.9.2</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/log4j/log4j -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>

    </dependencies>

    <build>
        <resources>
            <resource >
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>true</filtering>
            </resource>

            <resource >
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>true</filtering>
            </resource>
        </resources>
    </build>

    <!--设置字符集-->
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

三、创建两个包，命名如下，将文件拷入其中

四、配置文件的编写

第一个配置文件：applicationContext.xml

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<?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"
       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.xsd
	http://www.springframework.org/schema/aop
	http://www.springframework.org/schema/aop/spring-aop.xsd
	http://www.springframework.org/schema/tx
	http://www.springframework.org/schema/tx/spring-tx.xsd">
    <!--整合数据源 DBCP-->
    <bean name="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
        <property name="url" value="jdbc:mysql://localhost:3306/smtest?Unicode=true&amp;characterEncoding=utf-8"></property>
        <property name="username" value="root"></property>
        <property name="password" value="123456"></property>
    </bean>

    <!--整合 sqlSessionFacyory-->

    <bean name="sessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--注入数据源-->
        <property name="dataSource" ref="dataSource"></property>
        <!--注入 mybatis-config.xml-->
        <property name="configLocation" value="classpath:mybatis-config.xml"></property>
        <!--注入mapper 接口对应的 xml 文件-->
        <property name="mapperLocations">
            <list>
                <!-- <value>classpath:com/shop/domain/UserMapper.xml</value>-->
                <value>classpath:com/gec/mapper/UserMapper.xml</value>
            </list>
        </property>
    </bean>

    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 直接扫描所有maper 接口对应的包 -->
        <property name="basePackage" value="com.gec.mapper"></property>
    </bean>
</beans>

第二个配置文件：mybatis-config.xml

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<?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>
    <!--设置-->
    <settings>
        <!--标准日志工厂-->
        <!--<setting name="logImpl" value="STDOUT_LOGGING"/>-->

        <!--LOG4J日志-->
        <setting name="logImpl" value="LOG4J"/>
    </settings>
</configuration>

第三个配置文件：log4j.properties

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# Global logging configuration
log4j.rootLogger=DEBUG, stdout
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n

配置文件放置的位置：

五、测试类

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import java.sql.Connection;
import java.sql.SQLException;

import javax.sql.DataSource;

import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.gec.domain.Order;
import com.gec.domain.User;
import com.gec.mapper.OrderMapper;
import com.gec.mapper.UserMapper;

public class MyTest {
    @Test
    public void fun1() throws SQLException
    {
        ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
        DataSource dataSource = (DataSource) ac.getBean("dataSource");
        Connection connection = dataSource.getConnection();
        System.out.println(connection);
    }
    @Test
    public void fun2()
    {
        ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
        UserMapper userMapper = (UserMapper) ac.getBean("userMapper");
        User user = userMapper.selectByPrimaryKey(1);
        System.out.println(user);
    }
    @Test
    public void fun3()
    {
        ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
        //查看spring容器中的对象名称
		/*String[] names = ac.getBeanDefinitionNames();
		for (String name : names) {
			System.out.println(name);
		}*/

        UserMapper userMapper = (UserMapper) ac.getBean("userMapper");
        User user = userMapper.selectByPrimaryKey(1);
        System.out.println(user);
    }
    @Test
    public void fun4()
    {
        ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
        //查看spring容器中的对象名称
		/*String[] names = ac.getBeanDefinitionNames();
		for (String name : names) {
			System.out.println(name);
		}*/
        OrderMapper orderMapper = (OrderMapper) ac.getBean("orderMapper");
        Order order = orderMapper.selectByPrimaryKey(16);
        System.out.println(order);
    }
}