SpringBoot初识和快速入门(一)
2016-08-08 09:05
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版本 | 编写人 | 描述 | 日期 |
---|---|---|---|
1.0 | Nick | 快速搭建SpringBoot | 2016/08/08 |
1.1 | Nick | 入门 | 2016/10/15 |
框架说明
简单搭建
健壮框架
SpringBoot
框架说明
SpringBoot久闻大名,我们在自己编写Spring框架的时候,繁琐的Jar包依赖和Jar包管理,令初学者晕头转向,经常因为报一个错误而无奈。SpringBoot是最小化依赖和搭建较优的配置,内嵌服务器,让运行变得越来越简单简单搭建
参考地址:http://projects.spring.io/spring-boot/构建Maven项目,普通的Maven项目就行了,不需要转成Web(过程略,百度较多)
Maven的pom.xml配置如下:
<parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.4.0.RELEASE</version> </parent> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> </dependencies>
编写控制器
package hello; import org.springframework.boot.*; import org.springframework.boot.autoconfigure.*; import org.springframework.stereotype.*; import org.springframework.web.bind.annotation.*; @Controller @EnableAutoConfiguration public class SampleController { @RequestMapping("/") @ResponseBody String home() { return "Hello World!"; } public static void main(String[] args) throws Exception { SpringApplication.run(SampleController.class, args); } }
右键,运行,即可看到控制台信息如下:
. ____ _ __ _ _ /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot :: (v1.4.0.RELEASE) 2016-08-08 08:54:56.424 INFO 8164 --- [ main] SampleController.SampleController : Starting SampleController on WUPINLONG with PID 8164 (D:\WorkSpace\Eclipse\SpringBoot\springboot\target\classes started by NICK in D:\WorkSpace\Eclipse\SpringBoot\springboot) 2016-08-08 08:54:56.427 INFO 8164 --- [ main] SampleController.SampleController : No active profile set, falling back to default profiles: default 2016-08-08 08:54:56.464 INFO 8164 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@384ee98f: startup date [Mon Aug 08 08:54:56 CST 2016]; root of context hierarchy 2016-08-08 08:54:57.759 INFO 8164 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http) 2016-08-08 08:54:57.767 INFO 8164 --- [ main] o.apache.catalina.core.StandardService : Starting service Tomcat 2016-08-08 08:54:57.768 INFO 8164 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.4 2016-08-08 08:54:57.831 INFO 8164 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext 2016-08-08 08:54:57.831 INFO 8164 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1370 ms 2016-08-08 08:54:57.962 INFO 8164 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/] 2016-08-08 08:54:57.965 INFO 8164 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*] 2016-08-08 08:54:57.965 INFO 8164 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*] 2016-08-08 08:54:57.965 INFO 8164 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*] 2016-08-08 08:54:57.965 INFO 8164 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*] 2016-08-08 08:54:58.195 INFO 8164 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@384ee98f: startup date [Mon Aug 08 08:54:56 CST 2016]; root of context hierarchy 2016-08-08 08:54:58.249 INFO 8164 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/]}" onto java.lang.String SampleController.SampleController.home() 2016-08-08 08:54:58.253 INFO 8164 --- [ 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) 2016-08-08 08:54:58.253 INFO 8164 --- [ 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) 2016-08-08 08:54:58.279 INFO 8164 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 2016-08-08 08:54:58.280 INFO 8164 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 2016-08-08 08:54:58.313 INFO 8164 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 2016-08-08 08:54:58.496 INFO 8164 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup 2016-08-08 08:54:58.548 INFO 8164 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http) 2016-08-08 08:54:58.552 INFO 8164 --- [ main] SampleController.SampleController : Started SampleController in 2.516 seconds (JVM running for 2.757) 2016-08-08 08:55:05.416 INFO 8164 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring FrameworkServlet 'dispatcherServlet' 2016-08-08 08:55:05.416 INFO 8164 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization started 2016-08-08 08:55:05.432 INFO 8164 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization completed in 16 ms
自动绑定8080端口和根目录,打开浏览器访问:http://localhost:8080/,即可看到Hello World!,表示简单搭建完成
健壮框架
参考博客:http://my.oschina.net/u/1027043/blog/406558以上是官方Demo
下面贴上我自己测试的配置
POM.xml
<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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>nick</groupId> <artifactId>springboot</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>springboot Maven Webapp</name> <url>http://maven.apache.org</url> <!-- Add typical dependencies for a web application --> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.4.0.RELEASE</version> </parent> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies> </project>
然后就可以自己定义Controller了
注解使用@Controller或者@RestController(表示@Controller和@ResponseBody一起的,表示返回String类型)
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