No qualifying bean of type ‘org.springframework.transaction.TransactionManag

配置类代码：

package com.woniu.config;

import com.alibaba.druid.pool.ha.selector.RandomDataSourceRecoverThread;
import org.springframework.context.annotation.*;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import javax.sql.DataSource;

/**
 * @author yellow Docter
 * @date 2022 -05-07
 * @desc
 */
@Configuration
@ComponentScan("com.woniu")
@PropertySource("classpath:jdbc.properties")
@Import({JdbcConfig.class,MybatisConfig.class})
//spring中开启事务保证事务的完整性
@EnableTransactionManagement
public class SpringConfig {

  

}

错误原因：未配置事务管理器，spring无法对事务进行管理。

改进方法：添加事务管理器。

改进代码：

package com.woniu.config;

import com.alibaba.druid.pool.ha.selector.RandomDataSourceRecoverThread;
import org.springframework.context.annotation.*;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import javax.sql.DataSource;

/**
 * @author yellow Docter
 * @date 2022 -05-07
 * @desc
 */
@Configuration
@ComponentScan("com.woniu")
@PropertySource("classpath:jdbc.properties")
@Import({JdbcConfig.class,MybatisConfig.class})
//spring中开启事务保证事务的完整性
@EnableTransactionManagement
public class SpringConfig {

    @Bean
    public DataSourceTransactionManager dataSourceTransactionManager(DataSource dataSource){
        DataSourceTransactionManager dataSourceTransactionManager = new DataSourceTransactionManager(dataSource);
        return dataSourceTransactionManager;
    }

}