spring注解整合mybatis

1. 引入依赖

<!--mybatis-spring与mybatis使用低版本适配-->
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
<dependency>
	<groupId>org.mybatis</groupId>
	<artifactId>mybatis-spring</artifactId>
	<version>1.2.2</version>
</dependency>

<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
<dependency>
	<groupId>org.mybatis</groupId>
	<artifactId>mybatis</artifactId>
	<version>3.3.1</version>
</dependency>

2. mybatis注解配置

package com.lv.qggz.man.config;

import com.alibaba.druid.pool.DruidDataSource;
import com.github.pagehelper.PageInterceptor;
import org.apache.ibatis.logging.slf4j.Slf4jImpl;
import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.annotation.MapperScan;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.Resource;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import javax.sql.DataSource;
import java.util.Properties;

/**
 * @Author: sh
 * @Description: MybatisConfig
 * @Version:
 * @Date: 2023/3/30
 */
@Configuration
@MapperScan("com.xxx.dao")
@EnableTransactionManagement
public class MybatisConfig {
    protected Logger logger = LoggerFactory.getLogger(this.getClass());
    public static final String MYBATIS_DB = "mybatis-db";
    public static final String LOG_4_J = "LOG4J";
    public static final String TYPE_ALIASES_PACKAGE = "com.xxx.domain";
    public static final String LOCATION_PATTERN = "classpath*:mybatis/*.xml";

    public DataSource mybatisDataSource(@Qualifier("dataSource") DruidDataSource dataSource) {
        //@Bean(name = "mybatisDataSource")
        DruidDataSource druidDataSource = new DruidDataSource();
        druidDataSource.setDriverClassName(dataSource.getDriverClassName());
        druidDataSource.setUrl(dataSource.getUrl());
        druidDataSource.setUsername(dataSource.getUsername());
        druidDataSource.setPassword(dataSource.getPassword());
        druidDataSource.setName(MYBATIS_DB);
        return druidDataSource;
    }

    @Bean(name = "mybatisDataSourceTransactionManager")
    public DataSourceTransactionManager dataSourceTransactionManager(@Qualifier("dataSource") DataSource dataSource) {
        DataSourceTransactionManager dataSourceTransactionManager = new DataSourceTransactionManager(dataSource);
        return dataSourceTransactionManager;
    }

    @Bean
    public SqlSessionFactory sqlSessionFactory(@Qualifier("dataSource") DataSource dataSource) {
        SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
        sqlSessionFactoryBean.setDataSource(dataSource);
        sqlSessionFactoryBean.setTypeAliasesPackage(TYPE_ALIASES_PACKAGE);
        sqlSessionFactoryBean.setPlugins(new Interceptor[]{pageInterceptor()});
        PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        try {
            Resource[] resources = resolver.getResources(LOCATION_PATTERN);
            sqlSessionFactoryBean.setMapperLocations(resources);
            return sqlSessionFactoryBean.getObject();
        } catch (Exception e) {
            logger.error(e.getMessage());
        }
        return null;
    }


    @Bean
    public org.apache.ibatis.session.Configuration configuration(SqlSessionFactory sqlSessionFactory) {
        org.apache.ibatis.session.Configuration configuration = sqlSessionFactory.getConfiguration();
        configuration.setLogPrefix(LOG_4_J);
        configuration.setLogImpl(Slf4jImpl.class);
        return configuration;
    }

    public PageInterceptor pageInterceptor() {
        PageInterceptor pageInterceptor = new PageInterceptor();
        Properties properties = new Properties();
        properties.setProperty("helperDialect", "mysql");
        properties.setProperty("reasonable", "true");
        pageInterceptor.setProperties(properties);
        return pageInterceptor;
    }
}

3. 使用