Error message Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘LogMapper’ defined in file [F:\sale\build\classes\java\main\com\sun\controller\mapper\LogMapper.class]: Unsatisfied dependency expressed through bean property ‘sqlSessionFactory’; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘sqlSessionFactory’ defined in class path resource [com/baomidou/mybatisplus/autoconfigure/MybatisPlusAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method ‘sqlSessionFactory’…

1. The role of @Repository @Repository is an annotation belonging to Spring. It is used to mark the access layer class (Dao layer), which represents a warehouse and is mainly used to encapsulate access to the database. Its implementation is the same as the @Component annotation, but it is only established to clarify the role…

Brothers, following yesterday’s code, continue to complete the final user module development, Yesterday I completed the user information editing page. I will improve it today. Let’s start from the backend. Make an interceptor to verify the user’s identity. Interceptor Let me explain it first: Let’s use the interview questions to elaborate: **Interceptor related interview questions:…

Article Directory Obtained through ServletAPI Obtain the request parameters through the formal parameters of the controller method 3、[@RequestParam ](/RequestParam ) 4、[@RequestHeader ](/RequestHeader ) 5、[@CookieValue ](/CookieValue ) Obtain request parameters through POJO Solve the garbled problem of obtaining request parameters Summarize In Spring MVC, there are many ways to obtain request parameters. Let's start with a…

Let me talk about the background first, because to use a springcloud component, springboot 2.1.17 must be upgraded to springboot 2.6.15 from the corresponding version. first step Replace parent <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.6.15</version> </parent> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>5.3.8</version> </dependency> Those who are more stupid think that this is the end, start it directly and find…