Spring整合MyBatis框架！！！

搭建环境：

pom.xml:

<properties><maven.compiler.source>17</maven.compiler.source><maven.compiler.target>17</maven.compiler.target><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><dependencies><!-- Spring常用依赖 --><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>6.0.12</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-aspects</artifactId><version>5.1.8.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-tx</artifactId><version>5.1.8.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId><version>5.1.8.RELEASE</version></dependency><!-- MySql --><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.47</version></dependency><!--连接池--><dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId><version>1.1.0</version></dependency><!--mybatis--><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>3.5.3</version></dependency><dependency><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId><version>3.0.2</version></dependency><!--日志--><dependency><groupId>org.slf4j</groupId><artifactId>slf4j-log4j12</artifactId><version>1.7.26</version></dependency><!--junit--><dependency><groupId>org.springframework</groupId><artifactId>spring-test</artifactId><version>5.1.8.RELEASE</version></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.12</version></dependency></dependencies><build><!-- 如果不添加此节点src/main/java目录下的所有配置文件都会被漏掉。 --><resources><resource><directory>src/main/java</directory><includes><include>**/*.xml</include></includes></resource><resource><directory>src/main/resources</directory></resource></resources></build>

db.properties:

jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3305/spring?useUnicode=true&characterEncoding=UTF-8
jdbc.username=root
jdbc.password=

log4j.properties:

# 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

applicationContext.xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:context="http://www.springframework.org/schema/context"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context.xsd"><!--ioc--><context:component-scan base-package="com.by.service"></context:component-scan><!--加载db.properties--><context:property-placeholder location="db.properties"></context:property-placeholder><!--配置数据源DruidDataSource dataSource = new DruidDataSource();dataSource.setDriverClassName();dataSource.setUrl();dataSource.setUsername();dataSource.setPassword();--><bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" destroy-method="close"><property name="driverClassName" value="${jdbc.driverClass}"></property><property name="url" value="${jdbc.url}"></property><property name="username" value="${jdbc.username}"></property><property name="password" value="${jdbc.password}"></property></bean><!--SqlSessionFactoryBuilder sessionFactoryBuilder = new SqlSessionFactoryBuilder();SqlSessionFactory sessionFactory = sessionFactoryBuilder.build("");SqlSession sqlSession = sessionFactory.openSession();Object mapper = sqlSession.getMapper();--><bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"><property name="dataSource" ref="dataSource"></property></bean><!--扫描basePackage所指定的包下的所有接口，生成代理类并交给spring管理--><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"><!--mapper所在的包--><property name="basePackage" value="com.by.mapper"></property><property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property></bean></beans>

UserMapper:

package com.by.mapper;import com.by.pojo.User;public interface UserMapper {public void addUser(User user);
}

UserMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapperPUBLIC "-//mybatis.org//DTD Mapper 3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.by.mapper.UserMapper"><insert id="addUser" parameterType="com.by.pojo.User">insert into t_user(name,money) values(#{name},#{money})</insert>
</mapper>

User:(实体类)

package com.by.pojo;public class User {private Integer id;private String name;private Float money;public User(String name, Float money) {this.name = name;this.money = money;}public User() {}public Integer getId() {return id;}public void setId(Integer id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}public Float getMoney() {return money;}public void setMoney(Float money) {this.money = money;}
}

UserService:

package com.by.service;import com.by.pojo.User;/*** <p>Project: Spring - UserService</p>* <p>Powered by scl On 2024-01-05 21:24:07</p>* <p>描述：<p>** @author 孙臣龙 [1846080280@qq.com]* @version 1.0* @since 17*/
public interface UserService {void addUser(User user);
}

UserServiceImpl

package com.by.service;import com.by.mapper.UserMapper;
import com.by.pojo.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;@Service
public class UserServiceImpl implements UserService {@Autowiredprivate UserMapper userMapper;@Overridepublic void addUser(User user) {userMapper.addUser(user);}
}

测试类：

/** Copyright (c) 2020, 2024,  All rights reserved.**/
package com.by.web;import com.alibaba.druid.pool.DruidDataSource;
import com.by.pojo.User;
import com.by.service.UserService;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;/*** <p>Project: Spring - Client</p>* <p>Powered by scl On 2024-01-05 20:12:56</p>* <p>描述：<p>** @author 孙臣龙 [1846080280@qq.com]* @version 1.0* @since 17*/
public class Client {public static void main(String[] args) {ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");UserService userService = ac.getBean("userServiceImpl", UserService.class);userService.addUser(new User("张三丰",4000F));userService.addUser(new User("宋远桥",2000F));}
}