Springboot Getting Started Program

Springboot simplifies many of the XML files before, does not require a large number of configuration XML files, not many XML files is how happy

The following goes to the chase, demonstrating a simple starter program, albeit simple but enough to rouse beginners

My new project is called Hello, you can refer to

First, build a war project and import the right dependencies

<project xmlns= "http://maven.apache.org/POM/4.0.0" xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance" xsi: schemalocation= "http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" > < Modelversion>4.0.0</modelversion> <groupId>com.springboot.demo</groupId> <artifactId>   Hello</artifactid> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <parent> <groupId>org.springframework.boot</groupId> <artifactid>spring-boot-starter        -parent</artifactid> <version>1.3.4.RELEASE</version> </parent> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId> Spring-boot-starter-web</artifactid> </dependency> </dependencies><build><plugins> <plugin><groupid>org.apache.maven.plugins</groupid><artifactid>maven-compiler-plugin</artifactid><version>2.0.2</version>< configuration><source>1.8</source><target>1.8</target></configuration></ Plugin></plugins></build></project>

Second, build the package to build Java file

 Packagecom.example;Importorg.springframework.boot.SpringApplication;Importorg.springframework.boot.autoconfigure.EnableAutoConfiguration;ImportOrg.springframework.stereotype.Controller;Importorg.springframework.web.bind.annotation.RequestMapping;Importorg.springframework.web.bind.annotation.ResponseBody, @Controller @enableautoconfiguration Public classHellocontroller {@RequestMapping ("/hello") @ResponseBody String Home () {return"Hello,spring boot!"; }              Public Static voidMain (string[] args) {Springapplication.run (hellocontroller.class, args); }}

Third, execute the main method inside the Hellocontroller

Appears as shown, indicating successful start

  . ____ _ _ _ _/\\/___ _ _ _ _ (_) _ __ _ \ \ \ (() \___ | ' _ | ' _| | ' _ \ _ ' | \ \ \  \\/  ___)| |_)| | | | | ||  (_| | ))) ' |____|. __|_| |_|_| |_\__, | ////=========|_|==============|___/=/_/_/_/:: Spring Boot:: (v1.3.4.release) 2017-12-24 18:45:26.059 INFO 133 ---[main] com.example.HelloController:Starting Hellocontroller on LAPTOP-AP8KJEQL with PID 1 3340 (E:\Demo\workspace\hello\target\classes started by Eluzhu in E:\Demo\workspace\hello) 2017-12-24 18:45:26.061 INFO 13340---[main] com.example.HelloController:No active profile set, falling back to default Prof iles:default2017-12-24 18:45:26.086 INFO 13340---[main] Ationconfigembeddedwebapplicationcontext:refreshi ng Org.springframework.boot[email protected]24b1d79b:startup Date [Sun Dec 18:45:26 CST 2017]; Root of context hierarchy2017-12-24 18:45:27.110 INFO 13340---[main] s.b.c.e.t.tOmcatembeddedservletcontainer:tomcat initialized with Port (s): 8080 (http) 2017-12-24 18:45:27.121 INFO 13340---[           Main] o.apache.catalina.core.standardservice:starting service tomcat2017-12-24 18:45:27.122 INFO 13340---[ Main] org.apache.catalina.core.StandardEngine:Starting Servlet engine:apache tomcat/8.0.332017-12-24 18:45:27. 241 INFO 13340---[ost-startstop-1] o.a.c.c.c.[tomcat]. [localhost]. [/]: Initializing Spring embedded webapplicationcontext2017-12-24 18:45:27.242 INFO 13340---[ost-startstop-1] o. S.web.context.contextloader:root Webapplicationcontext:initialization completed in 1158 ms2017-12-24 18:45:2  7.486 INFO 13340---[ost-startstop-1] o.s.b.c.e.servletregistrationbean:mapping servlet: ' Dispatcherservlet ' to [/]2017-12-24 18:45:27.490 INFO 13340---[ost-startstop-1] o.s.b.c.embedded.filterregistrationbean:mapping filter: ' Characterencodingfilter ' to: [/*]2017-12-24 18:45:27.490 INFO 13340---[ost-startstop-1] o.s.b.c.embedded.filterregistrationbean:mapping filter: ' Hiddenhttpmethodfilter ' to: [/*]2017-12-24 18:45:27.490 INFO 13340---[ost-startstop-1] o.s.b.c.embedded.filterregistrationbean:mapping filter: ' HttpPutFormCon Tentfilter ' to: [/*]2017-12-24 18:45:27.490 INFO 13340---[ost-startstop-1] o.s.b.c.embedded.filterregistrationbean:m Apping filter: ' Requestcontextfilter ' to: [/*]2017-12-24 18:45:27.679 INFO 13340---[main] s.w.s.m.m.a.reques Tmappinghandleradapter:looking for @ControllerAdvice: org.springframework.boot[email protected]24b1d79b: startup Date [Sun Dec 18:45:26 CST 2017]; Root of context hierarchy2017-12-24 18:45:27.728 INFO 13340---[main] s.w.s.m.m.a.requestmappinghandlermappin           G:mapped "{[/hello]}" onto Java.lang.String com.example.HelloController.home () 2017-12-24 18:45:27.731 INFO 13340---[ Main] s.w.s.m.m.a.requestmappinghandlermapping:mapped "{[/error]}" onto public ORG.SPRINGFRAMEWORK.HTTP.REsponseentity<java.util.map<java.lang.string, java.lang.object>> Org.springframework.boot.autoconfigure.web.BasicErrorController.error (Javax.servlet.http.HttpServletRequest) 2017-12-24 18:45:27.731 INFO 13340---[main] s.w.s.m.m.a.requestmappinghandlermapping:mapped "{[/error],pro Duces=[text/html]} "onto public org.springframework.web.servlet.ModelAndView Org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml ( Javax.servlet.http.httpservletrequest,javax.servlet.http.httpservletresponse) 2017-12-24 18:45:27.751 INFO 13340-- -[main] o.s.w.s.handler.simpleurlhandlermapping:mapped URL path [/webjars/**] onto handler of type [Class O rg.springframework.web.servlet.resource.resourcehttprequesthandler]2017-12-24 18:45:27.751 INFO 13340---[Mai N] o.s.w.s.handler.simpleurlhandlermapping:mapped URL path [/**] onto handler of type [class org.springframework.web.se Rvlet.resource.resourcehttprequesthandler]2017-12-24 18:45:27.775 INFO 13340---[main] o.s.w.s.handler.simpleurlhandlermapping:mapped URL path [/**/favicon.ico] onto H  Andler of type [class org.springframework.web.servlet.resource.resourcehttprequesthandler]2017-12-24 18:45:27.839 INFO 13340---[main] o.s.j.e.a.annotationmbeanexporter:registering beans for JMX exposure on startup2 017-12-24 18:45:27.901 INFO 13340---[main] s.b.c.e.t.tomcatembeddedservletcontainer:tomcat started on port (s): 8080 (http) 2017-12-24 18:45:27.904 INFO 13340---[main] Com.example.HelloController:Start Ed Hellocontroller in 2.094 seconds (JVM running for 2.468)

Four, the third step after the successful implementation, in the browser input Localhost:8080/hello can see hello,springboot this sentence, it means the entry process has been successful

Last note: Springboot far more than this point of function, there are many, explore it together

Springboot Getting Started Program