事务操作—完全注解方式

完全注解管理事务

1：对照bean1.xml

将其中配置文件中的配置转化为配置类

2：TxConfig配置类

package com.junjay.spring5.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import com.alibaba.druid.pool.DruidDataSource;
@Configuration
// 开启组件扫描
@ComponentScan(basePackages = "com.junjay.spring5")
//开启事务
@EnableTransactionManagement
public class TxConfig {
    // 创建数据库连接池
    @Bean
    public DruidDataSource getDruidDataSource() {
        DruidDataSource dataSource = new DruidDataSource();
        dataSource.setDriverClassName("com.mysql.jdbc.Driver");
        dataSource.setUrl("jdbc:mysql://localhost:3306/test");
        dataSource.setUsername("root");
        dataSource.setPassword("root");
        return dataSource;
    }
    // 创建JdbcTemplate对象
    @Bean
    public JdbcTemplate getJdbcTemplate(DruidDataSource dataSource) {
        JdbcTemplate jdbcTemplate = new JdbcTemplate();
        // 注入dataSource,到ioc容器中找到DruidDataSource该类型进行注入
        jdbcTemplate.setDataSource(dataSource);
        return jdbcTemplate;
    }
    // 创建DataSourceTransactionManager事务管理器
    @Bean
    public DataSourceTransactionManager getDataSourceTransactionManager(DruidDataSource dataSource) {
        DataSourceTransactionManager manager = new DataSourceTransactionManager();
        manager.setDataSource(dataSource);
        return manager;
    }
}

3：测试

GitHub：https://github.com/My-Jun/spring5_demo5