udemy spring boot course

, such as Del Eteall,findone and so on, we call directly can * 4. Of course, we can also implement their own interface according to their own situation, such as the following GetUser () method, JPQL statement and HQL statement almost * **/ Public InterfaceUserrepositoryextendsCrudrepository { /*** We only need to write the interface here, do not need to write the implementation, spring

classes are referencing the class through spring, the first step is to register the class with spring, @ Restcontroller is equivalent to registering this class to the spring container of course, there is a more commonly used is the @controller, specifically they two differences after the discussion.Then @requestmappin

;(2) Embedded servlet containerThe embedded container allows us to execute the main program running the project main function, and let the project run quickly;(3) Provide starter simplified Manen configurationSpring Boot provides a range of starter Pom to simplify our maven dependency(4) Automatic configuration SpringSpring boot automatically configures the bean for the jar package class based on the Jar/cl

main purpose of customizing this processor is because I want to be lazy because my template engine needs access admin to get the username, and of course it can be used ${session.SPRING_SECURITY_CONTEXT.authentication.principal.username} to get UserDetails the user name3. SummaryThis is almost the end of writing here, I will do a personal summary. This integration spring security Midway is not like this art

microservices architectures, and the spring BOOT+MONGODB solution is one of the most optimal solutions for data governance under the MicroServices architecture.Of course, if we are unfamiliar with the microservices architecture, Spring Boot, and MongoDB, we may need to go a

course this is far from the convenience of using the feign component in the spring cloud system, but it's not much of an old project where the code has become a heavenly book. NBSP This class works as a prerequisite for providing a ribbon.properties file that specifies Eureka address and service name related information: # myclient corresponding micro-service name myclient.ribbon.DeploymentContextBased

Preferences, then there is a reason for the installation to go wrong, I would recommend removing Eclipse and then reinstalling it, because I encountered this problem when I installed it. Without uninstalling eclipse to reinstall the Springboot plugin directly, it is difficult to ensure that the bits and pieces of the previous installation are removed cleanly. Of course it's just advice.Well, the first blog to this end,

, because microservices can enable different teams to focus on a smaller range of job responsibilities, use independent technologies, and deploy more securely and more frequently. It inherits the fine features of spring, same strain with spring, and supports the implementation of various rest APIs. Spring boot is also

1.spring boot the path to the default load file is /meta-inf/resources/ /resources/ /static/ /public/ Below these directories, of course, we can also see from the Spring boot source Java code private static final string[] Classpath_resource_locations = {"Classpath:/meta-inf/

for Java-domain microservices architectures, and the spring BOOT+MONGODB solution is one of the most optimal solutions for data governance under the MicroServices architecture.Of course, if we are unfamiliar with the microservices architecture, Spring Boot, and MongoDB, we

the template engine mainly in the following ways:ThymeleafFreemarkerVelocityGroovyMustacheSpring boot recommends using these template engines to avoid using JSPs, and if you must use JSP, you will not be able to implement many of the features of spring boot, as described later: support for JSP configurationWhen you use any of the above template engines, their de

takes effect.In fact, the configuration of the bottom of spring is not a few, but these automatic configuration to help us do.Java EE's overall integration solution and Autoconfiguration are in: Spring-boot-autoconfigure-2.0.4.release.jar5. pom.xml file 1, parent projectThat is, the Spring

configuration file application.properties This file, which gives most of the other components, provides a centrally managed and configured hub, including security controls, Redis,solr,mangodb connection information, and database connection pool, container port number, jmx,j Ava Mail, dynamic templates, and more. In addition to this directory, the default is to access static resources, such as our css,js, or some third-party reference files.(b) Regarding the simple secure access control in

= "Com.spring.boot") will automatically scan the annotations under this package. MULTIBOOT3 module can be our business module, of course, such modules will be built a lot, it's pom.xml: We write a business logic-related controller in this module: Package com.spring.boot.multiboot3; Import org.springframework.web.bind.annotation.RequestMapping; Import Org.springframework.web.bind.annotation.RestController; @RestController public class App3controlle

1.Spring Bootsimplifies the initial setup and development of spring applications, saves development costs and time, and increases developer productivity2. includes many out-of-the-box microservices capabilities to deploy projects with spring cloud can be run independently, provides application monitoring, and can be deployed in conjunction with MicroServices. 3.

dimension configuration开发环境业务配置文件：application-dev.yml或application-dev.properties;The main content is the configuration of the business on the development environment, analogy: Database configuration, NoSQL configuration, MQ configuration, Interface connection configuration.生产环境业务配置文件：application-prod.yml或application-prod.properties;The main content is the configuration of the business on the production environment, analogy: Database configuration, NoSQL configuration, MQ configuration, Interfac

To understand the spring-boot of this technique, you should know Spring-boot's core profile application.properties, and of course you can customize the profile **.properties information through annotations. I. Reading the contents of the core profile information Application.properties A core profile is a application.pr

First, Spring Data JPA Introduction The JPA (Java Persistence API) Java Persistence API is the standard specification for Java persistence, and Hibernate is a technical implementation of the persistence specification, and Spring Data JPA is a framework encapsulated on Hibernate.Development environment Spring Boot

annotations are mainly composed of the following annotations:1. @SpringBootConfiguration: This is the configuration note for the Spring Boot project, which is also a combined annotation:recommended @ springbootconfiguration instead of @configuration in spring boot project2. @EnableAutoConfiguration: Enable automatic c

Processing file upload function of Spring Boot member management system, spring Member Management System Tip The Spring Boot member management system involves the Spring framework, SpringMVC framework, Hibernate framework, and thy