No qualifying bean of type ‘org.springframework.transaction.TransactionManager‘ available]

报错：

严重: Servlet.service() for servlet [dispatcher] in context with path [/SpringMVC-07-ssm] threw exception [Request processing failed; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.transaction.TransactionManager' available] with root cause
 

解决办法：

发现JdbcConfig里没有设置事务管理器

//设置事务管理器
    @Bean
    public PlatformTransactionManager transactionManager(DataSource dataSource){
        DataSourceTransactionManager transactionManager=new DataSourceTransactionManager();
        transactionManager.setDataSource(dataSource);
        return transactionManager;
    }