springbootapplication

that's locate your main application class in a root package above other classes. The @EnableAutoConfiguration annotation is often placed on your main class, and it implicitly defines a base "search Packa GE "for certain items. For example, if-writing a JPA application, the package of the @EnableAutoConfiguration annotated class was used to Search for @Entity items.Using A root package also lets the @ComponentScan annotation is used without needing to specify a Basepackage attribute. You can als

;Spring-boot-starter-parentArtifactid> version>1.4.0.RELEASEversion> Parent> Dependencies> 　　 This can be simply understood as the introduction of an external dependency jar package configuration, more maven dependency, can be added here in this way, specifically see Baidu maven dependency configuration, here do not repeat - Dependency> groupId>Org.springframework.bootgroupId> This launcher has built-in Tomcat and includes configuration Spring-webmv

Pom.xml official explanation that Spring-boot-start-web contains the spring Features of web development such as WEBMVC and Tomcat. 1.5Hello of Mavenrun application If we want to start spring directly in Main, then the following plugin must be added, otherwise it will not start. This configuration is not required if you are using Maven's spring-boot:run. (When I'm testing, I run it directly in main if I don't configure the following plugin.) ） the coding of 1.6Hello The fourth

The Spring boot project has a startup class, as follows: @SpringBootApplication public class demoapplication{public static void Main (string[] args) { Springapplication.run (Demoapplication.class, args); } } Write in front: Automatic configuration of the load and configuration of classes: The Springfactoriesloader.loadfactorynames () method loads all the meta-inf/spring.factories files, which are the classes that are configured to be

, you may need to wait for the idea to download the appropriate dependency package, and the default created project structure is as follows:The project structure still looks very refreshing, with a lot less configuration files, let's see what the default build is: Springbootapplication: A class with the main () method to start the application Springbootapplicationtests: An empty Junit test that loads a spring application context that uses

Spring Boot automatic configuration decryption annotations @enableautoconfigurationSpring boot for automatic configuration, added annotations @enableautoconfiguration,spring boot 1.2, our startup class needs to be annotated: @Configuration @EnableAutoConfiguration @ComponentScan Spring Boot 1.2 has a new annotation @springbootapplication, which can be replaced with an annotation: @Target (Elementtype.type) @Retention (retentionpolicy.runtime) @

conclusions:Problems caused by automatic component scanningBy default, we use @SpringBootApplication annotations to automatically get configuration information for an app, but this also brings some side effects to your app. With this annotation, automatic configuration (auto-configuration) and component scanning (component scanning) are triggered, with the use of @Configuration, @EnableAutoConfiguration, and @ Componentscan three annotations work the

SpringBoot annotations and springboot annotations I. annotations list @ SpringBootApplication: Contains @ ComponentScan, @ Configuration, and @ EnableAutoConfiguration annotations. @ ComponentScan enables spring Boot to scan the Configuration class and add it to the program context. @ Configuration is equivalent to the XML Configuration file of spring. Java code can be used to check type security. @ EnableAutoConfiguration automatic configuration. @ C

If we develop any spring boot project, we will use the following startup class@SpringBootApplicationpublic class Application {public static void Main (string[] args) { Springapplication.run (Application.class, args);} }　　As you can see from the code above, Annotation definitions (@SpringBootApplication) and class definitions (Springapplication.run) are the most dazzling, so to uncover Springboot's mystery, we will start with these two.The

Transferred from: http://www.alexecollins.com/spring-boot-performance/SPRING BOOT PerformanceThis is a article on what to improve the performance of Spring Boot applications. I ' ve recently been working on a new project. As we primarily use Java and spring, we ' ve been looking at Spring Boot. It ' s allowed us to get up and running quickly.Early on, I came across a problem with a prototype for one of our new applications. It was loading the Velocity Web page template engine. I could not unders

; plugin> Package skipping test code - plugin> groupId>Org.apache.maven.pluginsgroupId> Artifactid>Maven-surefire-pluginArtifactid> version>2.18.1version> Configuration> skiptests>Trueskiptests> Configuration> plugin> Package Project Source code - plugin> groupId>Org.apache.maven.pluginsgroupId> Artifactid>Maven-source-pluginArtifactid> version>2.1version> Configuration> Attach>TrueAttach>

ObjectiveIn the first few chapters we have seen the springboot for us to do automatic configuration, indeed convenient and fast, but for beginners, if not understand springboot internal starting principle, will inevitably suffer. So this time the blogger will be with you step by step to uncover the mystery of springboot, let it not mysterious.BodyIf we develop any spring boot project, we will use the following startup class@SpringBootApplicationpublic class Application { public static void ma

caller.　　Note: @RestController and @RequestMapping annotations are spring MVC annotations (they are not a specific part of spring boot)2. @EnableAutoConfiguration annotationsThe second class-level annotation is @EnableAutoConfiguration. This note tells spring boot to guess how you want to configure spring based on the added jar dependency.Because Spring-boot-starter-web adds Tomcat and spring MVC, Auto-configuration will assume that you are developing a web app and setting up spring accordingly

This section mainly:1: Analysis of Spring boot Portal and @springbootapplication source detailedSpringbootapplication contains:@SpringBootConfiguration@ComponentScan@EnableAutoConfigurationThis is the second Spring boot core (1) in the Edith Learning Series-Framework Learning Spring Boot Framework StudyDisclaimer: This article is Edith Java (www.kaigejava.com) original, without permission, no reprint!One: Spring boot entry and annotation parsingIn the

Original link: [Springboot series]--springboot Annotation DaquanI. List of annotations (annotations)@SpringBootApplication: Contains @componentscan, @Configuration, and @enableautoconfiguration annotations. Where @componentscan let spring boot scan to the configuration class and add it to the program context.@Configuration an XML configuration file that is equivalent to spring and can be checked for type safety using Java code.@EnableAutoConfiguration

This example will be managed with MAVEN, code hosted on GitHub, address: https://github.com/wolf909867753/springboot. 1. Create Maven-module and add springboot dependencies in Pom.xml 2. Create Helloworldcontroller class @RestController public class HelloWorld { @RequestMapping ("/") Public String HelloWorld () {return " Hello world! "; } } 3. Test class @SpringBootApplication public class HelloWorldTest {public s

(Accept) type in the request header. Instance: @RequestMapping ("/test") Public String Test () { return "OK"; } Note: @RestController and @requestmapping annotations are spring MVC annotations (they are not a specific part of spring boot) @EnableAutoConfiguration The second class-level annotation is @enableautoconfiguration. This note tells spring boot to guess how you want to configure spring based on the added jar dependency. Because Spring-boot-starter-web adds Tomcat and spring MVC,

(Sensible plugin configuration (exec plugin, surefire, Git commit ID, shade).) Ability to identify files of type application.properties and APPLICATION.YML, as well as support for profile-specific types of files (such as: Application-foo.properties and APPLICATION-FOO.YML, this feature can be used to better configure the configuration files in different production environments. If you do not want to use the default configuration, you can override the default configuration by using a cu

-boot-starter-web adds Tomcat and spring MVC, Auto-configuration will assume that you are developing a web app and setting up spring accordingly. Starter POMs and Auto-configuration: The purpose of design auto-configuration is to better use "Starter POMs", but these two concepts are not directly linked. You are free to choose a jar dependency other than starter Poms, and spring boot will still do its best to automatically configure your app.You can select automatic configuration by adding @Enabl

Project BuildingWe used MAVEN to build the Springboot project, first creating a MAVEN project with the corresponding POM file as follows:1.81.5.7. releaseCreate Application.javaPackage Com.ysl;import Org.springframework.boot.springapplication;import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication Public Class Application { publicstaticvoid main (string[] args) { Springapplication.run (Application. class