spring和mybatis整合

1、在pom.xml中导入Jar文件

<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
<dependency>
  <groupId>org.mybatis</groupId>
  <artifactId>mybatis-spring</artifactId>
  <version>1.3.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
<dependency>
  <groupId>org.mybatis</groupId>
  <artifactId>mybatis</artifactId>
  <version>3.4.6</version>
</dependency>

2、 MyBatis和Spring整合(XML版)

　　（1）实体类Accounts

package cn.spring.springandmybatis.entity;

public class Accounts {
    private Integer accountid;
    private String accountname;
    private double balance;

    public Integer getAccountid() {
        return accountid;
    }

    public void setAccountid(Integer accountid) {
        this.accountid = accountid;
    }

    public String getAccountname() {
        return accountname;
    }

    public void setAccountname(String accountname) {
        this.accountname = accountname;
    }

    public double getBalance() {
        return balance;
    }

    public void setBalance(double balance) {
        this.balance = balance;
    }
    
}
代码实现

　　（2）AccountsDao

package cn.spring.springandmybatis.dao;

import cn.spring.springandmybatis.entity.Accounts;

import java.util.List;

public interface AccountsDao {
    List<Accounts> getAll();
}
代码实现

　　（3）AccountsDao.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">
<!-- namespace属性代表该Mapper文件的唯一标识，通常习惯设置mapper接口名-->
<mapper namespace="cn.spring.springandmybatis.dao.AccountsDao">
    <select id="getAll" resultType="Accounts">
        select * from accounts;
    </select>
</mapper>
代码实现

　　（4）AccountsService

package cn.spring.springandmybatis.service;

import cn.spring.springandmybatis.entity.Accounts;

import java.util.List;

public interface AccountsService {
    List<Accounts> getAll();
}
代码实现

　　（5）AccountsServiceImpl

package cn.spring.springandmybatis.service.impl;

import cn.spring.springandmybatis.dao.AccountsDao;
import cn.spring.springandmybatis.entity.Accounts;
import cn.spring.springandmybatis.service.AccountsService;

import java.util.List;

public class AccountsServiceImpl implements AccountsService {
    AccountsDao accountsDao;
    @Override
    public List<Accounts> getAll() {
        return accountsDao.getAll();
    }

    public AccountsDao getAccountsDao() {
        return accountsDao;
    }

    public void setAccountsDao(AccountsDao accountsDao) {
        this.accountsDao = accountsDao;
    }
}
代码实现

　　（6）jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/account?useUniCode=true&characterEncoding=utf-8
jdbc.username=root
jdbc.password=123
代码实现

　　（7）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:p="http://www.springframework.org/schema/p"
       xmlns:context="http://www.springframework.org/schema/context" 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/aop
       http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
    <!--1.导入jdbc.properties文件-->
    <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="location" value="jdbc.properties"></property>
    </bean>
    <!--2.配置数据源   spring内置的数据源-->
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="${jdbc.driver}"></property>
        <property name="url" value="${jdbc.url}"></property>
        <property name="username" value="${jdbc.username}"></property>
        <property name="password" value="${jdbc.password}"></property>
    </bean>

    <!--3.配置mybatis的核心对象SqlSessionFatcoryBean-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <property name="typeAliasesPackage" value="cn.spring.springandmybatis.entity"></property>
        <property name="mapperLocations" value="classpath*:mapper/*xml"></property>
    </bean>

    <!--4.Mybatis的Dao接口的包扫描器(借助Dao接口生成动态代理)-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="cn.spring.springandmybatis.dao"></property>
    </bean>

    <!--5.将service实现类对象声明到Spring容器中-->
    <bean id="accountsService" class="cn.spring.springandmybatis.service.impl.AccountsServiceImpl" autowire="byType"></bean>

    <!--6.事务配置-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>

    <tx:advice id="transactionAdvice" transaction-manager="transactionManager" >
        <tx:attributes>
            <tx:method name="getAll" isolation="READ_COMMITTED" propagation="REQUIRED"/>
        </tx:attributes>
    </tx:advice>

    <aop:config>
        <aop:advisor advice-ref="transactionAdvice" pointcut="execution(* *..service.impl.*.*(..))"></aop:advisor>
    </aop:config>

    <!--扫描注解：包扫描器-->
    <context:component-scan base-package="cn.spring"></context:component-scan>
</beans>
代码实现

　　（8）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>
    <!--配置别名-->
    <typeAliases>
        <package name="cn.spring.springandmybatis.entity"/>
    </typeAliases>
    <!--加载小配置文件-->
    <mappers>
        <package name="cn.spring.springandmybatis.dao"/>
    </mappers>
</configuration>
代码实现

　　（9）测试类

package cn.spring;

import cn.spring.springandmybatis.entity.Accounts;
import cn.spring.springandmybatis.service.AccountsService;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import java.util.List;

public class SpringAndMybatisTest {
    public static void main(String[] args) {
        ApplicationContext context=new ClassPathXmlApplicationContext("applicationContext.xml");
        AccountsService bean = context.getBean(AccountsService.class);
        List<Accounts> all = bean.getAll();
        for (Accounts account:all) {
            System.out.println("姓名："+account.getAccountname());
        }
    }
}
代码实现

　　（10）控制台

　　　

3、 MyBatis和Spring整合(注解版)

　　（1）实体类Accounts

代码实现

　　（2）AccountsDao

package cn.spring.springandmybatis.dao;

import cn.spring.springandmybatis.entity.Accounts;
import org.springframework.stereotype.Repository;

import java.util.List;
@Repository
public interface AccountsDao {
    List<Accounts> getAll();
}
代码实现

　　（3）AccountsDao.xml

代码实现

　　（4）AccountsService

代码实现

　　（5）AccountsServiceImpl

package cn.spring.springandmybatis.service.impl;

import cn.spring.springandmybatis.dao.AccountsDao;
import cn.spring.springandmybatis.entity.Accounts;
import cn.spring.springandmybatis.service.AccountsService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
@Service("accountsService")
public class AccountsServiceImpl implements AccountsService {
    @Autowired
    AccountsDao accountsDao;
    @Override
    public List<Accounts> getAll() {
        return accountsDao.getAll();
    }

    public AccountsDao getAccountsDao() {
        return accountsDao;
    }

    public void setAccountsDao(AccountsDao accountsDao) {
        this.accountsDao = accountsDao;
    }
}
代码实现

　　（6）jdbc.properties

代码实现

　　（7）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:p="http://www.springframework.org/schema/p"
       xmlns:context="http://www.springframework.org/schema/context" 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/aop
       http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
    <!--1.导入jdbc.properties文件-->
    <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="location" value="jdbc.properties"></property>
    </bean>
    <!--2.配置数据源   spring内置的数据源-->
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="${jdbc.driver}"></property>
        <property name="url" value="${jdbc.url}"></property>
        <property name="username" value="${jdbc.username}"></property>
        <property name="password" value="${jdbc.password}"></property>
    </bean>

    <!--3.配置mybatis的核心对象SqlSessionFatcoryBean-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <property name="typeAliasesPackage" value="cn.spring.springandmybatis.entity"></property>
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
    </bean>

    <!--4.Mybatis的Dao接口的包扫描器(借助Dao接口生成动态代理)-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="cn.spring.springandmybatis.dao"></property>
    </bean>

    <!--5.事务配置-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    
    <tx:advice id="transactionAdvice" transaction-manager="transactionManager" >
        <tx:attributes>
            <tx:method name="getAll" isolation="READ_COMMITTED" propagation="REQUIRED"/>
        </tx:attributes>
    </tx:advice>

    <aop:config>
        <aop:advisor advice-ref="transactionAdvice" pointcut="execution(* *..service.impl.*.*(..))"></aop:advisor>
    </aop:config>

    <!--扫描注解：包扫描器-->
    <context:component-scan base-package="cn.spring"></context:component-scan>
</beans>
代码实现

　　（8）mybatis-config.xml

代码实现

　　（9）测试类　　

package cn.spring;

import cn.spring.springandmybatis.entity.Accounts;
import cn.spring.springandmybatis.service.AccountsService;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import java.util.List;

public class SpringAndMybatisTest {
    public static void main(String[] args) {
        ApplicationContext context=new ClassPathXmlApplicationContext("applicationContext.xml");
        AccountsService bean = (AccountsService)context.getBean("accountsService");
        List<Accounts> all = bean.getAll();
        for (Accounts account:all) {
            System.out.println("姓名："+account.getAccountname());
        }
    }
}
代码实现

　　（10）控制台

　　　

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原文地址：https://www.cnblogs.com/Zzzzn/p/11798003.html