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  • MyBatis入门程序之整合Spring

    1、引入相关jar包(版本对应关系3.3.1版本的mybatis和1.1.1的spring-mybatis匹配,3.4.1版本的mybatis和1.3.1的spring-mybatis匹配)

    如果不对应会报org.mybatis.spring.transaction.SpringManagedTransaction.getTimeout()类似错误

    maven的pom.xml配置如下

    <?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>com.hjp.mybatisdemo</groupId>
        <artifactId>mybatisdemo</artifactId>
        <version>1.0-SNAPSHOT</version>
    
        <dependencies>
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis</artifactId>
                <version>3.4.1</version>
            </dependency>
            <dependency>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-log4j12</artifactId>
                <version>1.7.5</version>
            </dependency>
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>5.1.6</version>
            </dependency>
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.11</version>
            </dependency>
            <dependency>
                <groupId>cglib</groupId>
                <artifactId>cglib</artifactId>
                <version>2.2.2</version>
            </dependency>
            <dependency>
                <groupId>commons-logging</groupId>
                <artifactId>commons-logging</artifactId>
                <version>1.1.1</version>
            </dependency>
            <dependency>
                <groupId>org.javassist</groupId>
                <artifactId>javassist</artifactId>
                <version>3.20.0-GA</version>
            </dependency>
            <dependency>
                <groupId>org.apache.logging.log4j</groupId>
                <artifactId>log4j-api</artifactId>
                <version>2.6.2</version>
            </dependency>
            <dependency>
                <groupId>org.apache.logging.log4j</groupId>
                <artifactId>log4j-core</artifactId>
                <version>2.6.2</version>
            </dependency>
    
            <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis-spring</artifactId>
                <version>1.3.1</version>
            </dependency>
    
            <!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-jdbc</artifactId>
                <version>3.1.4.RELEASE</version>
            </dependency>
    
            <!-- https://mvnrepository.com/artifact/commons-pool/commons-pool -->
            <dependency>
                <groupId>commons-pool</groupId>
                <artifactId>commons-pool</artifactId>
                <version>1.3</version>
            </dependency>
    
            <!-- https://mvnrepository.com/artifact/commons-dbcp/commons-dbcp -->
            <dependency>
                <groupId>commons-dbcp</groupId>
                <artifactId>commons-dbcp</artifactId>
                <version>1.2.2</version>
            </dependency>
    
    
        </dependencies>
    
        <build>
            <resources>
                <resource>
                    <directory>src/main/java</directory>
                    <includes>
                        <include>**/*.xml</include>
                    </includes>
                    <filtering>false</filtering>
                </resource>
            </resources>
        </build>
    
    </project>
    pom.xml

    2、在classpath下创建applicationContext.xml文件,并配置如下

    <?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-3.1.xsd
            http://www.springframework.org/schema/context
            http://www.springframework.org/schema/context/spring-context-3.1.xsd
            http://www.springframework.org/schema/aop
            http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
            http://www.springframework.org/schema/tx
            http://www.springframework.org/schema/tx/spring-tx-3.1.xsd ">
    
        <!--引用Java配置文件-->
        <context:property-placeholder location="db.properties"></context:property-placeholder>
    
        <!--配置数据源,使用dbcp数据库连接池-->
        <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
            <property name="driverClassName" value="${db.driver}"></property>
            <property name="url" value="${db.url}"></property>
            <property name="username" value="${db.username}"></property>
            <property name="password" value="${db.password}"></property>
            <property name="maxActive" value="10"></property>
            <property name="maxIdle" value="5"></property>
        </bean>
    
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            <!--myBatis配置文件路径-->
            <property name="configLocation" value="sqlMapConfig.xml"></property>
            <!--数据源-->
            <property name="dataSource" ref="dataSource"></property>
        </bean>
    
        <!--批量mapper配置,bean的名字默认为mapper接口类名首字母小写-->
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            <!--指定包名-->
            <property name="basePackage" value="com.hjp.mapper"></property>
            <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
        </bean>
    
    </beans>
    applicationContext.xml

    3、测试代码如下

    import com.hjp.mapper.UserMapper;
    import com.hjp.po.User;
    import org.junit.Before;
    import org.junit.Test;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    
    public class SpringDemoTest {
    
        private ApplicationContext context;
    
        @Before
        public void setUp(){
            context=new ClassPathXmlApplicationContext("applicationContext.xml");
        }
    
        @Test
        public void func1() throws Exception {
            UserMapper userMapper= (UserMapper) context.getBean("userMapper");
            User user=userMapper.findUserById(1);
            System.out.println(user);
        }
    
    }
    View Code
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  • 原文地址:https://www.cnblogs.com/hujiapeng/p/7118094.html
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