前言
之前一直在尋找Springboot的學習資料，終於得償所願。。。那麽，先給自己定一個小目標 - 能夠使用Springboot這套架構來搭建自己的服務。
準備階段
1. 開發環境
開發環境其實還是因人而異的（官方的說法是Java7以上，推薦Java8；貌似也可以用Java6）。lz這裏的平臺為Windows，Jdk版本為1.8，maven版本為3.39。具體信息可以看下圖
2. 為maven配置aliyun鏡像倉庫
由於眾所周知的原因，我們訪問maven官方的網站的時候，速度沒有辣麽“給力”，所以通過aliyun的鏡像倉庫來“加速”。具體的配置方法也很簡單，就是在".m2"目錄下的“setting.xml”文件中加入如下配置：
<mirrors> <mirror> <id>nexus-aliyun</id> <mirrorOf>*</mirrorOf> <name>Nexus aliyun</name>
<url>http://maven.aliyun.com/nexus/content/groups/public</url> </mirror> </mirrors>
3. IDE
我這裏使用的是STS，版本為： 3.8.4
創建第一個Springboot程序（Restful Web Service）
好了，前面啰嗦了一大堆，終於進入正題啦。。。
1. 新建一個spring start project
2. 選擇建立一個Web項目
選擇完成後，點擊“finish”按鈕，之後STS就會開始下載項目依賴的項目；待所有東西就緒之後，我們可以看到項目的結構如圖所示：
3. 編寫controller類，處理Http request
package com.example.HelloSpringBoot.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @RestController public class HelloSpringBootController { @RequestMapping("/hello") public String hello(){ return "Hello spring boot!"; } }
@RestController - 該註解表示類 “HelloSpringBootController”是一個web controller，它用來處理web request@RequestMapping("/hello") - 該註解表明請求的相對路徑為 “/hello”
至此，我們的編碼工作已經完成。
4. 啟動Springboot項目
選中默認生成的文件“HelloSpringBootApplication.java” -> 右鍵 -> "run as spring boot app"
啟動後，我們會在console裏面看到如下輸出
. ____ _ __ _ _ /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot :: (v1.5.7.RELEASE) 2017-10-03 23:28:58.291 INFO 9436 --- [ main] c.e.H.HelloSpringBootApplication : Starting HelloSpringBootApplication on Tuo-PC with PID 9436 (E:\sts-bundle\sts-3.8.4.RELEASE\workspace_springboot\HelloSpringBoot\target\classes started by Tuo in E:\sts-bundle\sts-3.8.4.RELEASE\workspace_springboot\HelloSpringBoot) 2017-10-03 23:28:58.298 INFO 9436 --- [ main] c.e.H.HelloSpringBootApplication : No active profile set, falling back to default profiles: default 2017-10-03 23:28:58.483 INFO 9436 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@351d0846: startup date [Tue Oct 03 23:28:58 CST 2017]; root of context hierarchy 2017-10-03 23:29:01.261 INFO 9436 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http) 2017-10-03 23:29:01.298 INFO 9436 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat] 2017-10-03 23:29:01.303 INFO 9436 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.20 2017-10-03 23:29:01.696 INFO 9436 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext 2017-10-03 23:29:01.696 INFO 9436 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 3219 ms 2017-10-03 23:29:02.216 INFO 9436 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/] 2017-10-03 23:29:02.227 INFO 9436 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*] 2017-10-03 23:29:02.230 INFO 9436 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*] 2017-10-03 23:29:02.231 INFO 9436 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*] 2017-10-03 23:29:02.231 INFO 9436 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*] 2017-10-03 23:29:02.968 INFO 9436 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@351d0846: startup date [Tue Oct 03 23:28:58 CST 2017]; root of context hierarchy 2017-10-03 23:29:03.114 INFO 9436 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/hello]}" onto public java.lang.String com.example.HelloSpringBoot.Controller.HelloSpringBootController.hello() 2017-10-03 23:29:03.122 INFO 9436 --- [ 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) 2017-10-03 23:29:03.123 INFO 9436 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) 2017-10-03 23:29:03.182 INFO 9436 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 2017-10-03 23:29:03.182 INFO 9436 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 2017-10-03 23:29:03.260 INFO 9436 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 2017-10-03 23:29:03.628 INFO 9436 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup 2017-10-03 23:29:03.832 INFO 9436 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http) 2017-10-03 23:29:03.842 INFO 9436 --- [ main] c.e.H.HelloSpringBootApplication : Started HelloSpringBootApplication in 6.118 seconds (JVM running for 7.13) 2017-10-03 23:29:27.484 INFO 9436 --- [nio-8080-exec-3] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring FrameworkServlet 'dispatcherServlet' 2017-10-03 23:29:27.484 INFO 9436 --- [nio-8080-exec-3] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization started 2017-10-03 23:29:27.515 INFO 9436 --- [nio-8080-exec-3] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization completed in 31 ms
通過輸出的內容，我們可以看到Springboot程序已經成功啟動！
5. 通過瀏覽器，發送web request，驗證程序。
OK，我們的第一個基於Springboot的測試程序就大功告成啦，感謝大家的觀看，祝大家國慶快樂！！ ^_^
Tags: Springboot amp gt lt 項目 aliyun
文章來源：