Atitit spring5 集成 mybatis 注解班

Atitit spring5 集成 mybatis 注解班

 

 

 

目录

1.1. 0. 创建配置文件——application.properties 1

1.2. 创建一个数据层接口——这是一个Mapper类 1

1.3. MyBatisConfiguartion 类  配置扫描mappers 2

2. Spring调用 4

3. Spring config 5

 

码文件内容

Spring MVC之最简Mybatis配置(全注解) - 幻世 - CSDN博客.html

1. 1. 0. 创建配置文件——application.properties

写入一下内容：

 

spring.datasource.driver-class-name=com.mysql.jdbc.Driver

spring.datasource.url=jdbc:mysql://localhost:3306/test?useSSL=false&useUnicode=true&characterEncoding=UTF-8

spring.datasource.username=root

spring.datasource.password=123456

---------------------

1. 1. 创建一个数据层接口——这是一个Mapper类

 

package springMybatis;

 

 

 

import java.util.List;

import java.util.Map;

 

import org.apache.ibatis.annotations.Delete;

import org.apache.ibatis.annotations.Insert;

import org.apache.ibatis.annotations.Mapper;

import org.apache.ibatis.annotations.Param;

import org.apache.ibatis.annotations.Select;

import org.apache.ibatis.annotations.Update;

import org.mybatis.spring.SqlSessionTemplate;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.jdbc.core.JdbcTemplate;

 

@Mapper

//iocSpring5demo.MybatisMapperCls

public interface MybatisMapperCls {

 

 

//@Autowired

//public SqlSessionTemplate sqlSessionTemplate1;

    

    /*

     * 这是基于注解的映射方式，实现对数据的增删改查，将sql语句直接写在注解的括号中

     * 这是一个接口，其不需要类去实现它

     * 下边分别是插入，删除，修改，查询一个记录，查询所有的记录

     * */

    

 

    

    @Select("${sql_intag}")

    public List<Map>   query(@Param("sql_intag") String sql);

    

 

    

}

 

1. 1. MyBatisConfiguartion 类  配置扫描mappers

 

 

package springMybatis;

 

import javax.sql.DataSource;

 

import org.apache.ibatis.session.SqlSessionFactory;

import org.mybatis.spring.SqlSessionFactoryBean;

import org.mybatis.spring.SqlSessionTemplate;

import org.mybatis.spring.annotation.MapperScan;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

import org.springframework.core.io.support.PathMatchingResourcePatternResolver;

import org.springframework.core.io.support.ResourcePatternResolver;

import org.springframework.jdbc.datasource.DataSourceTransactionManager;

 

 

 

/**

 * @author tony ittimeline@163.com

 * @date 2018-02-24-上午11:13

 * @website wwww.ittimeline.net

 * @see

 * @since JDK8u162

 */

@Configuration

//@//Import(DruidDataSourceConfiguraiton.class)

@MapperScan(basePackages ="springMybatis")

public class MyBatisConfiguartion {

   

@Bean

public DataSource dataSource() {

AtiDateSource instance = new AtiDateSource();

return instance;

// configure and return the necessary JDBC DataSource

}

 

 

//    @Bean

//     public DataSource dataSource() {

//         BasicDataSource dataSource = new BasicDataSource();

//

//         dataSource.setDriverClassName("com.mysql.jdbc.Driver");

//         dataSource.setUrl("jdbc:mysql://localhost:3306/mb?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8");

//         dataSource.setUsername("");   // 这里填写数据库用户名

//         dataSource.setPassword("");   // 这里填写数据库密码

//

//         return dataSource;

//     }

//

   

   

   @Bean

    public DataSourceTransactionManager transactionManager() {

        return new DataSourceTransactionManager(dataSource());

    }

 

    @Bean

    public SqlSessionFactoryBean sqlSessionFactoryBean() throws Exception {

        SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();

        sessionFactory.setDataSource(dataSource());

   //     sessionFactory.setTypeAliasesPackage("me.firstsnow.model");

        return sessionFactory;

    }

 

 

/*

    @Bean(name = "sqlSessionFactory")

    public SqlSessionFactory sqlSessionFactoryBean(DataSource dataSource){

 

     

*/

    /**

     *

     * @param sqlSessionFactory

     * @return

     */

    @Bean

    public SqlSessionTemplate sqlSessionTemplate(SqlSessionFactory sqlSessionFactory){

        return new SqlSessionTemplate(sqlSessionFactory);

    }

 

 

 

 

}

 

1. Spring调用

package springMybatis;

 

import java.util.List;

import java.util.Map;

 

import org.mybatis.spring.annotation.MapperScan;

import org.springframework.context.annotation.AnnotationConfigApplicationContext;

 

import com.alibaba.fastjson.JSON;

@MapperScan(basePackages= {"iocSpring5demo"})

public class SpringMybayisStartDemoAnno {

 

public static void main(String[] args) {

// 创建spring 基于注解配置的容器

AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(AppConfig.class);

// 获取通过注解注入容器的UserService

MybatisMapperCls MybatisMapperCls1 = context.getBean(MybatisMapperCls.class);

// 调用userService的方法执行

List<Map> message = MybatisMapperCls1.query("select * from user_tab");

 

// userService.addUser("user2");

// 输出结果

System.out.println(  JSON.toJSONString(message));

// 关闭容器,释放JVM资源

context.close();

}

 

}

1. Spring config

 

package springMybatis;

 

import javax.sql.DataSource;

 

import org.mybatis.spring.annotation.MapperScan;

import org.springframework.beans.factory.config.PropertyPlaceholderConfigurer;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.ComponentScan;

import org.springframework.context.annotation.Configuration;

import org.springframework.context.annotation.EnableAspectJAutoProxy;

import org.springframework.core.io.ClassPathResource;

import org.springframework.jdbc.core.JdbcTemplate;

import org.springframework.jdbc.datasource.DataSourceTransactionManager;

import org.springframework.transaction.PlatformTransactionManager;

import org.springframework.transaction.annotation.EnableTransactionManagement;

import org.springframework.transaction.annotation.TransactionManagementConfigurer;

import org.springframework.transaction.support.TransactionTemplate;

@EnableTransactionManagement

@EnableAspectJAutoProxy

@Configuration /** 该注解表示这个类是一个Spring的配置类 **/

@ComponentScan(basePackages = {

"springMybatis" }) /***

 * 该注解表示启用spring的组件扫描功能，并且配置了扫描包net.xqlee.project.

 * demo下的所有类

 **/

//@//MapperScan(basePackages= {"springMybatis"})

public class AppConfig implements TransactionManagementConfigurer {

 

 

 

 

 

@Bean

public DataSource dataSource() {

 

AtiDateSource instance = new AtiDateSource();

return instance;

// configure and return the necessary JDBC DataSource

}

 

 

@Bean

@Override

public PlatformTransactionManager annotationDrivenTransactionManager() {

// return txManager();

 return  new  DataSourceTransactionManager(dataSource());

}

 

}