spring boot database example

Objective: This project is built on Maven and uses mybatis-spring-boot as the persistence layer framework for SPRING-BOOT projects The use of the MyBatis Persistence layer framework in Spring-boot differs from the original

In back-end development, applications may have different configurations in different environments, such as database connections, log levels, etc., development, testing, and production each environment may not be configured in a consistent configuration. With spring boot profile, configuration switching can be implemented in multiple scenarios to facilitate testin

) ~[ Spring-beans-5.0.5.release.jar:5.0.5.release] At Org.springframework.beans.factory.support.AbstractBeanFactory.getBean (abstractbeanfactory.java:199) ~[ Spring-beans-5.0.5.release.jar:5.0.5.release] At Org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons ( defaultlistablebeanfactory.java:760) ~[spring-beans-5.0.5.rele

generally used to build restful APIs; @ControllerUsed to define the controller class, which is the responsibility of the controller in the spring project to forward URL requests from the user to the corresponding service interface (services layer). @RestControllerThe collection of @ResponseBody and @controller @RequestMappingProvides routing information that is responsible for mapping the URL to a specific function in the controller. @Ena

1, the use of technology and version number JDK8.0 Spring 5.0 oauth2.0 redis2.0 2, the project uses MAVEN management. Pom File Add: Dependency> groupId> Org.springframework.cloud groupId> Artifactid> Spring-cloud-starter-security Artifactid> Dependency> Dependency> groupId> Org.springframework.cloud groupId> Artifactid> Spring-cloud-starter-oauth2 Artifactid> Dep

, where the UU field is only tested if the name does not correspond, will the value be assigned successfully PrivateString UU; PrivateString resume; PublicString GetName () {returnname; } Public voidsetName (String name) { This. Name =name; } PublicInteger getage () {returnAge ; } Public voidsetage (Integer age) { This. Age =Age ; } PublicString Getuu () {returnUU; } Public voidsetuu (String uu) { This. UU =UU; } PublicString Getresume () {returnResume; } Public v

Spring boot encapsulates the NoSQL database with the usual database support. Redis Introduction Redis is the most widely used memory data store in the industry today. Memcached,redis supports richer data structures, such as hashes, lists, sets, etc., while supporting data persistence. In addition, Redis also provides s

ImportOrg.apache.ibatis.annotations.Select;5 6 ImportCom.woniu.bean.User;7 8 @Mapper9 Public InterfaceUsermaper {Ten One@Select ("SELECT * from user where Age = #{age}") AUser Select (intAge ); -}2.3 Creating a Controller1 PackageCom.woniu.controller;2 3 Importorg.springframework.beans.factory.annotation.Autowired;4 Importorg.springframework.web.bind.annotation.RequestMapping;5 ImportOrg.springframework.web.bind.annotation.RestController;6 7 ImportCom.woniu.bean.User;8 ImportCom.woniu.ma

Spring is a "engine"Spring MVC is an MVC framework based on springSpring Boot is a set of rapid development integration packages based on SPRING4 conditional registrationSpring initially decouples application components with "Factory mode" (DI) and "proxy mode" (AOP)The Spring Framework is a layered architecture consi

Due to the needs of the project, the profile feature was added to the SPIRNG boot project today. Online Search a lap, also did not find a satisfactory reference, in fact, configuration is not difficult, is not a one stop (one-stop) to explain the place, so have the idea of writing this blog. Because of my limited level, any errors and omissions in this article welcome feedback. I hope this article can help you. The goals that this article achieves: 1

In the first two articles we talked about two things: Get started with a simple instance of spring boot Modify the Spring boot default service port number and default context path In this article we look at how to persist data through JdbcTemplate.Don't say much nonsense, go straight to dry.First, the

code:@SpringBootConfiguration @enableautoconfiguration@componentscanThese three parameters are important parameters:@SpringBootConfiguration indicates that this is a configuration,@EnableAutoConfiguration indicates that spring boot is automatically configured for the current project based on the jar package dependencies in the classpath.For example, by adding th

Create a Web projectConfiguring the Pom.xml file------equivalent to a jar packageConfigure APPLICATION.YML-----Profile (Spring database connection, Server service, logging log, etc.)Create package (entity, Controller, service, configuration, repository, interceptor, etc.)Small example:Entity:personData Persistence (DAO):ControllerSpring comes with JUnit test @springboottest without having to configure JUnit

1. Preface Spring Boot provides a command line interface (CLI), which can be used to run and test the Spring boot application. Interface There are several ways to install the CLI: * * Install with downloaded bundle * * Installation with Groovyenvironment Manager * * Installation via OS Xhomebrew * * Installation with

widely used in domestic and foreign internet companies.The biggest feature of MongoDB is the support of the query language is very powerful, its syntax is somewhat similar to the object-oriented query language, almost can achieve similar relational database single-table query most of the functions, but also support the indexing of data. MongoDB's implementation of high-availability and read-write load balancing is very concise and friendly, and Mongo

and requires: 1) Configure Web. XML to load spring and spring MVC 2) Configure database connection, configuration log file 3) Configure home read in config file, open annotations 4) Configure the Mapper file ..... Using Spring Boot to develop a

We know that the Spring boot Autoconfiguration feature can determine which of the spring configurations should be used depending on the circumstances, not which one should be used, for example: Is spring's jdbctemplate in classpath? If it is, and DataSource is present, a JdbcTemplate bean is automatically conf

. Spring-boot-starter-amqp Support for the "Advanced message Queuing Protocol" via Spring-rabbit. Spring-boot-starter-aop Support for aspect-oriented programming including S