Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
	2022-11-03 22:25:52.583 ERROR 2496 --- [           main] o.s.boot.SpringApplication               : Application run failed

	org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'attrAttrgroupRelationController': Unsatisfied dependency expressed through field 'attrAttrgroupRelationService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'attrAttrgroupRelationService': Unsatisfied dependency expressed through field 'baseMapper'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'attrAttrgroupRelationDao' defined in file [E:\_mall\_mall\mall\mall-product\target\classes\com\example\mall\product\dao\AttrAttrgroupRelationDao.class]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Property 'sqlSessionFactory' or 'sqlSessionTemplate' are required
		at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:659) ~[spring-beans-5.3.23.jar:5.3.23]
		at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:639) ~[spring-beans-5.3.23.jar:5.3.23]
		at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119) ~[spring-beans-5.3.23.jar:5.3.23]
		at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) ~[spring-beans-5.3.23.jar:5.3.23]
		at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1431) ~[spring-beans-5.3.23.jar:5.3.23]
		at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619) ~[spring-beans-5.3.23.jar:5.3.23]
		at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.23.jar:5.3.23]
		at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.23.jar:5.3.23]
		at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.23.jar:5.3.23]
		at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.23.jar:5.3.23]
		at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.23.jar:5.3.23]
		at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:955) ~[spring-beans-5.3.23.jar:5.3.23]
		at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918) ~[spring-context-5.3.23.jar:5.3.23]
		at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.23.jar:5.3.23]
		at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147) ~[spring-boot-2.7.5.jar:2.7.5]
		at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:734) [spring-boot-2.7.5.jar:2.7.5]
		at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) [spring-boot-2.7.5.jar:2.7.5]
		at org.springframework.boot.SpringApplication.run(SpringApplication.java:308) [spring-boot-2.7.5.jar:2.7.5]
		at org.springframework.boot.SpringApplication.run(SpringApplication.java:1306) [spring-boot-2.7.5.jar:2.7.5]
		at org.springframework.boot.SpringApplication.run(SpringApplication.java:1295) [spring-boot-2.7.5.jar:2.7.5]
		at com.example.mall.product.MallProductApplication.main(MallProductApplication.java:19) [classes/:na]

报错代码中写法如右侧：@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class})
  


方法一：
		将 exclude 中的 DataSourceAutoConfiguration.class 去掉即可。
    
方法二：
		错误日志中描述了 sqlSessionFactory ，所以可注入一个 SqlSessionFactoryBean 对象到 Spring 容器当中
    	
      @Bean
			public SqlSessionFactoryBean sqlSessionFactoryBean() {
				SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
				sqlSessionFactoryBean.setDataSource(dataSource());
				return sqlSessionFactoryBean;
			}

			@Bean
			public DriverManagerDataSource dataSource() {
				DriverManagerDataSource dataSource = new DriverManagerDataSource();
				dataSource.setDriverClassName("com.mysql.cj.jdbc.Driver");
				dataSource.setUrl("jdbc:mysql://192.168.77.77:3306/test?useUnicode=true&characterEncoding=UTF-8&useSSL=false&serverTimezone=Asia/Shanghai");
				dataSource.setUsername("root");
				dataSource.setPassword("123465");
				return dataSource;
			}