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Spring boot——helloworld例子实现

时间:2017-07-02 17:46:44      阅读:329      评论:0      收藏:0      [点我收藏+]

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软件152     缑旭浩

1.新建maven项目,package方式为war.    

   使用maven的时候,maven会从仓库中下载依赖的jar包。

新建Maven Project 命名为:SpringBoot 选项如图

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修改工程目录,添加源文件夹后目录如下:

 

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2.在pom文件spring boot需要的依赖,配置文件如下:

  1 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  2     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  3     <modelVersion>4.0.0</modelVersion>
  4 
  5   <groupId>com.lgp</groupId>
  6   <artifactId>SpringBoot</artifactId>
  7   <version>0.0.1-SNAPSHOT</version>
  8   <packaging>jar</packaging>
  9 
 10   <name>SpringBoot</name>
 11   <url>http://maven.apache.org</url>
 12 
 13   <properties>
 14     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 15   </properties>
 16 
 17      <!-- Inherit defaults from Spring Boot -->
 18     <parent>
 19         <groupId>org.springframework.boot</groupId>
 20         <artifactId>spring-boot-starter-parent</artifactId>
 21         <version>1.4.0.BUILD-SNAPSHOT</version>
 22     </parent>
 23 
 24     <!-- Add typical dependencies for a web application -->
 25     <dependencies>
 26         <dependency>
 27             <groupId>org.springframework.boot</groupId>
 28             <artifactId>spring-boot-starter-web</artifactId>
 29         </dependency>
 30           <dependency>
 31           <groupId>junit</groupId>
 32           <artifactId>junit</artifactId>
 33           <version>3.8.1</version>
 34            <scope>test</scope>
 35         </dependency>
 36     </dependencies>
 37 
 38     <!-- Package as an executable jar -->
 39     <build>
 40         <plugins>
 41             <!-- <plugin>
 42                 <groupId>org.springframework.boot</groupId>
 43                 <artifactId>spring-boot-maven-plugin</artifactId>
 44             </plugin> -->
 45             
 46             <!-- Maven Assembly Plugin -->
 47             <plugin>
 48                 <groupId>org.apache.maven.plugins</groupId>
 49                 <artifactId>maven-assembly-plugin</artifactId>
 50                 <version>2.4.1</version>
 51                 <configuration>
 52                     <!-- get all project dependencies -->
 53                     <descriptorRefs>
 54                         <descriptorRef>jar-with-dependencies</descriptorRef>
 55                     </descriptorRefs>
 56                     <!-- MainClass in mainfest make a executable jar -->
 57                     <archive>
 58                       <manifest>
 59                         <mainClass>com.lgp.SpringBoot.App</mainClass>
 60                       </manifest>
 61                     </archive>
 62  
 63                 </configuration>
 64                 <executions>
 65                   <execution>
 66                     <id>make-assembly</id>
 67                      <!-- bind to the packaging phase -->
 68                     <phase>package</phase> 
 69                     <goals>
 70                         <goal>single</goal>
 71                     </goals>
 72                   </execution>
 73                 </executions>
 74             </plugin>
 75             
 76         </plugins>
 77     </build>
 78     
 79     
 80 
 81     <!-- Add Spring repositories -->
 82     <!-- (you don‘t need this if you are using a .RELEASE version) -->
 83     <repositories>
 84         <repository>
 85             <id>spring-snapshots</id>
 86             <url>http://repo.spring.io/snapshot</url>
 87             <snapshots><enabled>true</enabled></snapshots>
 88         </repository>
 89         <repository>
 90             <id>spring-milestones</id>
 91             <url>http://repo.spring.io/milestone</url>
 92         </repository>
 93     </repositories>
 94     <pluginRepositories>
 95         <pluginRepository>
 96             <id>spring-snapshots</id>
 97             <url>http://repo.spring.io/snapshot</url>
 98         </pluginRepository>
 99         <pluginRepository>
100             <id>spring-milestones</id>
101             <url>http://repo.spring.io/milestone</url>
102         </pluginRepository>
103     </pluginRepositories>
104 </project>

 

3.编辑JAVA代码新建APP.class

 1 package com.lgp.SpringBoot;
 2 
 3 import org.springframework.boot.SpringApplication;
 4 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 5 import org.springframework.web.bind.annotation.RequestMapping;
 6 import org.springframework.web.bind.annotation.RestController;
 7 
 8 @RestController
 9 @EnableAutoConfiguration
10 public class App 
11 {
12       @RequestMapping("/h")
13       public String home() {
14         return "Hello";
15       }
16     
17       @RequestMapping("/w")
18       public String word() {
19         return "World";
20       }
21       
22     public static void main( String[] args )
23     {
24         System.out.println( "Hello World ! App!" );
25         SpringApplication.run(App.class, args);
26         //SpringApplication.run(UserController.class, args);
27     }
28 }

 

3.编写测试action,此action跟用其他方式创建spring项目里边的action没什么区别。

 1 package com.example;
 2 
 3 import org.springframework.boot.SpringApplication;
 4 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 5 import org.springframework.stereotype.Controller;
 6 import org.springframework.web.bind.annotation.RequestMapping;
 7 import org.springframework.web.bind.annotation.ResponseBody;
 8 
 9 @Controller
10 @EnableAutoConfiguration
11 public class HelloController {
12 
13     @RequestMapping("/hello")
14     @ResponseBody
15     String home() {
16         return "Hello ,spring boot!";
17     }
18 
19     public static void main(String[] args) throws Exception {
20         SpringApplication.run(HelloController.class, args);
21         //运行之后在浏览器中访问:http://localhost:8080/hello
22     }
23     
24 }

 

4.启动项目,只需要运行上面代码的main方法,运行成功,控制台输出如下

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  .   ____          _            __ _ _
 /\\ / ___‘_ __ _ _(_)_ __  __ _ \ \ \ ( ( )\___ | ‘_ | ‘_| | ‘_ \/ _` | \ \ \  \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  ‘  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v1.3.4.RELEASE)

2017-07-02 15:21:46.299  INFO 6668 --- [           main] com.example.HelloController              : Starting HelloController on 0KE99GYM83Y5KGX with PID 6668 (D:\newspace\springbootdemo\target\classes started by Administrator in D:\newspace\springbootdemo)
2017-07-02 15:21:46.301  INFO 6668 --- [           main] com.example.HelloController              : No active profile set, falling back to default profiles: default
2017-07-02 15:21:46.337  INFO 6668 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@18b8315: startup date [Tue May 10 15:21:46 CST 2016]; root of context hierarchy
2017-07-02 15:21:47.385  INFO 6668 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2017-07-02 15:21:47.399  INFO 6668 --- [           main] o.apache.catalina.core.StandardService   : Starting service Tomcat
2017-07-02 15:21:47.400  INFO 6668 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/8.0.33
2017-07-02 15:21:47.482  INFO 6668 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2017-07-02 15:21:47.482  INFO 6668 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 1148 ms
2017-07-02 15:21:47.714  INFO 6668 --- [ost-startStop-1] o.s.b.c.e.ServletRegistrationBean        : Mapping servlet: ‘dispatcherServlet‘ to [/]
2017-07-02 15:21:47.718  INFO 6668 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean  : Mapping filter: ‘characterEncodingFilter‘ to: [/*]
2017-07-02 15:21:47.718  INFO 6668 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean  : Mapping filter: ‘hiddenHttpMethodFilter‘ to: [/*]
2017-07-02 15:21:47.718  INFO 6668 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean  : Mapping filter: ‘httpPutFormContentFilter‘ to: [/*]
2017-07-02 15:21:47.718  INFO 6668 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean  : Mapping filter: ‘requestContextFilter‘ to: [/*]
2017-07-02 15:21:47.939  INFO 6668 --- [           main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@18b8315: startup date [Tue May 10 15:21:46 CST 2016]; root of context hierarchy
2017-07-02 15:21:47.991  INFO 6668 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/hello]}" onto java.lang.String com.example.HelloController.home()
2017-07-02 15:21:47.993  INFO 6668 --- [           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)
2017-07-02 15:21:47.994  INFO 6668 --- [           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)
2017-07-02 15:21:48.014  INFO 6668 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-07-02 15:21:48.014  INFO 6668 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-07-02 15:21:48.048  INFO 6668 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-07-02 15:21:48.128  INFO 6668 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Registering beans for JMX exposure on startup
2017-07-02 15:21:48.187  INFO 6668 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http)
2017-07-02 15:21:48.190  INFO 6668 --- [           main] com.example.HelloController              : Started HelloController in 2.166 seconds (JVM running for 2.401)
2017-07-02 15:22:03.171  INFO 6668 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring FrameworkServlet ‘dispatcherServlet‘
2017-07-02 15:22:03.171  INFO 6668 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : FrameworkServlet ‘dispatcherServlet‘: initialization started
2017-07-02 15:22:03.181  INFO 6668 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : FrameworkServlet ‘dispatcherServlet‘: initialization completed in 10 ms
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5.在浏览器中访问,如下:

运行App.java 访问 http://localhost:8080/user/12

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Spring boot——helloworld例子实现

标签:except   运行   artifact   sem   xsd   idt   config   nap   ret   

原文地址:http://www.cnblogs.com/javaeeadd/p/7106535.html

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