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Set account and password The first method: configuration file (not commonly used) application spring.security.user.name=admin spring.security.user.password=123 The second method: configure the class Need to inherit WebSecurityConfigurerAdapter @Configuration public class SecurityConfig extends WebSecurityConfigurerAdapter { @Override ...

Create Maven project Import dependent POM XML coordinate information: <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>5.0.2.RELEASE</version> </dependency> </dependencies> <!--unit testing - ...

catalogue Write in front I. what is a JdbcTemplate? 2, JdbcTemplate framework construction 1. Import the required jar package 2. Configuring JDBC data sources (1) . configure data sources directly in (2) . import external configuration file 3. Configure the JdbcTemplate object 3, Detailed explanation of persistence layer operation 1. ...

prefaceIf you want to achieve the same effect, please keep consistent with the code in this article. The logic is not complex. After the effect is completed, you can modify it according to your own ideas. The code in this article is mainly implemented, and there must be some cases that have not been handled.causeA JAVA framework called Spring i ...

1, What is circular dependency Two or more objects refer to each other, i.e A rely on B，B rely on C，C Again dependent A For example: @service public class A { private B b; @Autowired public void setB(B b) { this.b= b; } } @service public class B { private A a; @Autowired public vo ...

Background management system Upload hospital information interface The first is the basic information of the hospital. On the background management website, the administrator can manage and operate some information of the hospital, such as hospital name, contact person, hospital number, etc Specific technology: swagger is integrated as ...

What is IoC and DI IoC (inversion of control): in the abstract, it is an idea that all objects in our development process can be managed by Spring. We can obtain them directly without creating them ourselves, that is, the inversion of object management rights. Specifically, IoC is a container in Spring, a container for managing objects. DI (de ...

1. The essence of IOC Map container: the essence of IOC container is a map ApplicationContext context: holds a reference to BeanFactory Bean factory factory: responsible for obtaining beans from containers BeanDefinitionReader parser: responsible for parsing all configuration files Definition meta information configuration: xml, yml, ann ...

preface Recently contacted projects use JdbcTemplate so frequently that they often have to check the API. Here, write about the common operations of adding, deleting, modifying and checking. Introduction to JdbcTemplate JdbcTemplate is Spring's encapsulation of JDBC to make JDBC easier to use. It is a part of Spring, and we don't need relation ...

Source code: @Target({ElementType.METHOD, ElementType.TYPE}) @Retention(RetentionPolicy.RUNTIME) @Documented @Mapping public @interface RequestMapping { String name() default ""; @AliasFor("path") String[] value() default {}; @AliasFor("value") String[] path() default {}; RequestMethod[] method() default {}; Str ...