Spring Boot入门开发之明月千城（一）

╰+攻爆jí腚メ 2022-08-07 20:59 162阅读 0赞

![8962295b-3ae5-39a8-bc99-a6a25c83fa7c.jpg][]  
  
  
**最近数据分析的项目也即将告一段落了，中间也积累了很多知识，特此记录一下。其中用的最爽的Web组合开发就是Intellij IDEA + Maven + Spring Boot + Velocity + Boostrap + jQuery了，关于后端的数据分析和处理的Hadoop模块，会放在Hadoop分类的博客文章中记录。  
  
![71228faa-8d8c-30e7-a939-711d03565e88.png][]  
  
  
Spring Boot提供了一个强大的一键式Spring的集成开发环境，能够单独进行一个Spring应用的开发，其中：  
  
（1）集中式配置（application.properties）+注解，大大简化了开发流程  
（2）内嵌的Tomcat和Jetty容器，可直接打成jar包启动，无需提供Java war包以及繁琐的Web配置  
（3）提供了Spring各个插件的基于Maven的pom模板配置，开箱即用，便利无比。  
（4）可以在任何你想自动化配置的地方，实现可能  
（5）提供更多的企业级开发特性，如何系统监控，健康诊断，权限控制  
（6） 无冗余代码生成和XML强制配置  
（7）提供支持强大的Restfult风格的编码，非常简洁  
  
当然Spring Boot提供的功能，远远比上面的强大，散仙会在后续文章中，逐渐以实际工作中的项目为背景，穿插记录使用Spring Boot的心得体会。  
  
下面看一个入门级的例子：  
  
pom依赖：**

Java代码 [ ![复制代码][icon_copy.gif]][_icon_copy.gif] ![收藏代码][icon_star.png]![spinner.gif][]

1.  <?xml version="1.0" encoding="UTF-8"?>
2.  <project xmlns="http://maven.apache.org/POM/4.0.0"
3.  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
4.  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
5.  <modelVersion>4.0.0</modelVersion>
6.  
7.  <groupId>com.spring.boot</groupId>
8.  <artifactId>springboot</artifactId>
9.  <version>1.0\-SNAPSHOT</version>
10. 
11. <parent>
12. <groupId>org.springframework.boot</groupId>
13. <artifactId>spring-boot-starter-parent</artifactId>
14. <version>1.2.3.RELEASE</version>
15. </parent>
16. <dependencies>
17. <dependency>
18. <groupId>org.springframework.boot</groupId>
19. <artifactId>spring-boot-starter-web</artifactId>
20. </dependency>
21. </dependencies>
22. </project>

<?xml version="1.0" encoding="UTF-8"?>
    <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.spring.boot</groupId>
        <artifactId>springboot</artifactId>
        <version>1.0-SNAPSHOT</version>
    
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>1.2.3.RELEASE</version>
        </parent>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
        </dependencies>
    </project>

核心代码：

Java代码 [ ![复制代码][icon_copy.gif]][_icon_copy.gif] ![收藏代码][icon_star.png]![spinner.gif][]

1.  package controller;
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.RequestBody;
7.  import org.springframework.web.bind.annotation.RequestMapping;
8.  import org.springframework.web.bind.annotation.ResponseBody;
9.  
10. /\*\* 
11.  \* Created by 三劫散仙 on 2015/4/24. 
12.  \*/
13. @Controller
14. @EnableAutoConfiguration
15. public class HellowController \{
16. 
17. 
18. 
19. @RequestMapping("/hellow")
20. @ResponseBody
21. public String hellow()\{
22. 
23. return "哈喽，Spring Boot ！";
24. \}
25. 
26. 
27. public static void main(String\[\] args) \{
28. //第一个简单的应用， 
29. SpringApplication.run(HellowController.class,args);
30. 
31. \}
32. 
33. \}

package controller;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestBody;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.ResponseBody;
    
    /**
     * Created by 三劫散仙 on 2015/4/24.
     */
    @Controller
    @EnableAutoConfiguration
    public class HellowController {
    
    
    
        @RequestMapping("/hellow")
        @ResponseBody
        public String hellow(){
    
            return "哈喽，Spring Boot ！";
        }
    
    
        public static void main(String[] args) {
            //第一个简单的应用，
            SpringApplication.run(HellowController.class,args);
    
        }
    
    }

控制台输出：

Java代码 [ ![复制代码][icon_copy.gif]][_icon_copy.gif] ![收藏代码][icon_star.png]![spinner.gif][]

1.  D:\\soft\\Java\\jdk1.7.0\_04\\bin\\java -Didea.launcher.port=7532 "-Didea.launcher.bin.path=D:\\idea\\ideainstall\\IntelliJ IDEA 14.0.2\\bin" \-Dfile.encoding=UTF-8 \-classpath "D:\\soft\\Java\\jdk1.7.0\_04\\jre\\lib\\charsets.jar;D:\\soft\\Java\\jdk1.7.0\_04\\jre\\lib\\deploy.jar;D:\\soft\\Java\\jdk1.7.0\_04\\jre\\lib\\javaws.jar;D:\\soft\\Java\\jdk1.7.0\_04\\jre\\lib\\jce.jar;D:\\soft\\Java\\jdk1.7.0\_04\\jre\\lib\\jfr.jar;D:\\soft\\Java\\jdk1.7.0\_04\\jre\\lib\\jsse.jar;D:\\soft\\Java\\jdk1.7.0\_04\\jre\\lib\\management-agent.jar;D:\\soft\\Java\\jdk1.7.0\_04\\jre\\lib\\plugin.jar;D:\\soft\\Java\\jdk1.7.0\_04\\jre\\lib\\resources.jar;D:\\soft\\Java\\jdk1.7.0\_04\\jre\\lib\\rt.jar;D:\\soft\\Java\\jdk1.7.0\_04\\jre\\lib\\ext\\dnsns.jar;D:\\soft\\Java\\jdk1.7.0\_04\\jre\\lib\\ext\\localedata.jar;D:\\soft\\Java\\jdk1.7.0\_04\\jre\\lib\\ext\\sunec.jar;D:\\soft\\Java\\jdk1.7.0\_04\\jre\\lib\\ext\\sunjce\_provider.jar;D:\\soft\\Java\\jdk1.7.0\_04\\jre\\lib\\ext\\sunmscapi.jar;D:\\soft\\Java\\jdk1.7.0\_04\\jre\\lib\\ext\\zipfs.jar;D:\\idea\\ideaworkspace\\Springboot\\target\\classes;C:\\Users\\qin\\.m2\\repository\\org\\springframework\\boot\\spring-boot-starter-web\\1.2.3.RELEASE\\spring-boot-starter-web-1.2.3.RELEASE.jar;C:\\Users\\qin\\.m2\\repository\\org\\springframework\\boot\\spring-boot-starter\\1.2.3.RELEASE\\spring-boot-starter-1.2.3.RELEASE.jar;C:\\Users\\qin\\.m2\\repository\\org\\springframework\\boot\\spring-boot\\1.2.3.RELEASE\\spring-boot-1.2.3.RELEASE.jar;C:\\Users\\qin\\.m2\\repository\\org\\springframework\\boot\\spring-boot-autoconfigure\\1.2.3.RELEASE\\spring-boot-autoconfigure-1.2.3.RELEASE.jar;C:\\Users\\qin\\.m2\\repository\\org\\springframework\\boot\\spring-boot-starter-logging\\1.2.3.RELEASE\\spring-boot-starter-logging-1.2.3.RELEASE.jar;C:\\Users\\qin\\.m2\\repository\\org\\slf4j\\jcl-over-slf4j\\1.7.11\\jcl-over-slf4j-1.7.11.jar;C:\\Users\\qin\\.m2\\repository\\org\\slf4j\\slf4j-api\\1.7.11\\slf4j-api-1.7.11.jar;C:\\Users\\qin\\.m2\\repository\\org\\slf4j\\jul-to-slf4j\\1.7.11\\jul-to-slf4j-1.7.11.jar;C:\\Users\\qin\\.m2\\repository\\org\\slf4j\\log4j-over-slf4j\\1.7.11\\log4j-over-slf4j-1.7.11.jar;C:\\Users\\qin\\.m2\\repository\\ch\\qos\\logback\\logback-classic\\1.1.3\\logback-classic-1.1.3.jar;C:\\Users\\qin\\.m2\\repository\\ch\\qos\\logback\\logback-core\\1.1.3\\logback-core-1.1.3.jar;C:\\Users\\qin\\.m2\\repository\\org\\yaml\\snakeyaml\\1.14\\snakeyaml-1.14.jar;C:\\Users\\qin\\.m2\\repository\\org\\springframework\\boot\\spring-boot-starter-tomcat\\1.2.3.RELEASE\\spring-boot-starter-tomcat-1.2.3.RELEASE.jar;C:\\Users\\qin\\.m2\\repository\\org\\apache\\tomcat\\embed\\tomcat-embed-core\\8.0.20\\tomcat-embed-core-8.0.20.jar;C:\\Users\\qin\\.m2\\repository\\org\\apache\\tomcat\\embed\\tomcat-embed-el\\8.0.20\\tomcat-embed-el-8.0.20.jar;C:\\Users\\qin\\.m2\\repository\\org\\apache\\tomcat\\embed\\tomcat-embed-logging-juli\\8.0.20\\tomcat-embed-logging-juli-8.0.20.jar;C:\\Users\\qin\\.m2\\repository\\org\\apache\\tomcat\\embed\\tomcat-embed-websocket\\8.0.20\\tomcat-embed-websocket-8.0.20.jar;C:\\Users\\qin\\.m2\\repository\\com\\fasterxml\\jackson\\core\\jackson-databind\\2.4.5\\jackson-databind-2.4.5.jar;C:\\Users\\qin\\.m2\\repository\\com\\fasterxml\\jackson\\core\\jackson-annotations\\2.4.5\\jackson-annotations-2.4.5.jar;C:\\Users\\qin\\.m2\\repository\\com\\fasterxml\\jackson\\core\\jackson-core\\2.4.5\\jackson-core-2.4.5.jar;C:\\Users\\qin\\.m2\\repository\\org\\hibernate\\hibernate-validator\\5.1.3.Final\\hibernate-validator-5.1.3.Final.jar;C:\\Users\\qin\\.m2\\repository\\javax\\validation\\validation-api\\1.1.0.Final\\validation-api-1.1.0.Final.jar;C:\\Users\\qin\\.m2\\repository\\org\\jboss\\logging\\jboss-logging\\3.1.3.GA\\jboss-logging-3.1.3.GA.jar;C:\\Users\\qin\\.m2\\repository\\com\\fasterxml\\classmate\\1.0.0\\classmate-1.0.0.jar;C:\\Users\\qin\\.m2\\repository\\org\\springframework\\spring-core\\4.1.6.RELEASE\\spring-core-4.1.6.RELEASE.jar;C:\\Users\\qin\\.m2\\repository\\org\\springframework\\spring-web\\4.1.6.RELEASE\\spring-web-4.1.6.RELEASE.jar;C:\\Users\\qin\\.m2\\repository\\org\\springframework\\spring-aop\\4.1.6.RELEASE\\spring-aop-4.1.6.RELEASE.jar;C:\\Users\\qin\\.m2\\repository\\aopalliance\\aopalliance\\1.0\\aopalliance-1.0.jar;C:\\Users\\qin\\.m2\\repository\\org\\springframework\\spring-beans\\4.1.6.RELEASE\\spring-beans-4.1.6.RELEASE.jar;C:\\Users\\qin\\.m2\\repository\\org\\springframework\\spring-context\\4.1.6.RELEASE\\spring-context-4.1.6.RELEASE.jar;C:\\Users\\qin\\.m2\\repository\\org\\springframework\\spring-webmvc\\4.1.6.RELEASE\\spring-webmvc-4.1.6.RELEASE.jar;C:\\Users\\qin\\.m2\\repository\\org\\springframework\\spring-expression\\4.1.6.RELEASE\\spring-expression-4.1.6.RELEASE.jar;D:\\idea\\ideainstall\\IntelliJ IDEA 14.0.2\\lib\\idea\_rt.jar" com.intellij.rt.execution.application.AppMain controller.HellowController
2.  
3.  . \_\_\_\_ \_ \_\_ \_ \_
4.  /\\\\ / \_\_\_'\_ \_\_ \_ \_(\_)\_ \_\_ \_\_ \_ \\ \\ \\ \\
5.  ( ( )\\\_\_\_ | '\_ | '\_| | '\_ \\/ \_\` | \\ \\ \\ \\
6.  \\\\/ \_\_\_)| |\_)| | | | | || (\_| | ) ) ) )
7.  ' |\_\_\_\_| .\_\_|\_| |\_|\_| |\_\\\_\_, | / / / /
8.  =========|\_|==============|\_\_\_/=/\_/\_/\_/
9.  :: Spring Boot :: (v1.2.3.RELEASE)
10. 
11. 2015\-04\-24 01:12:41.399 INFO 4428 \--- \[ main\] controller.HellowController : Starting HellowController on qin-PC with PID 4428 (D:\\idea\\ideaworkspace\\Springboot\\target\\classes started by qin in D:\\idea\\ideaworkspace\\Springboot)
12. 2015\-04\-24 01:12:41.458 INFO 4428 \--- \[ main\] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@2923a47c: startup date \[Fri Apr 24 01:12:41 CST 2015\]; root of context hierarchy
13. 2015\-04\-24 01:12:42.393 INFO 4428 \--- \[ main\] o.s.b.f.s.DefaultListableBeanFactory : Overriding bean definition for bean 'beanNameViewResolver': replacing \[Root bean: class \[null\]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration; factoryMethodName=beanNameViewResolver; initMethodName=null; destroyMethodName=(inferred); defined in class path resource \[org/springframework/boot/autoconfigure/web/ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration.class\]\] with \[Root bean: class \[null\]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter; factoryMethodName=beanNameViewResolver; initMethodName=null; destroyMethodName=(inferred); defined in class path resource \[org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter.class\]\]
14. 2015\-04\-24 01:12:44.399 INFO 4428 \--- \[ main\] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
15. 2015\-04\-24 01:12:44.959 INFO 4428 \--- \[ main\] o.apache.catalina.core.StandardService : Starting service Tomcat
16. 2015\-04\-24 01:12:44.973 INFO 4428 \--- \[ main\] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.0.20
17. 2015\-04\-24 01:12:45.332 INFO 4428 \--- \[ost-startStop-1\] o.a.c.c.C.\[Tomcat\].\[localhost\].\[/\] : Initializing Spring embedded WebApplicationContext
18. 2015\-04\-24 01:12:45.332 INFO 4428 \--- \[ost-startStop-1\] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 3880 ms
19. 2015\-04\-24 01:12:46.274 INFO 4428 \--- \[ost-startStop-1\] o.s.b.c.e.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to \[/\]
20. 2015\-04\-24 01:12:46.295 INFO 4428 \--- \[ost-startStop-1\] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: \[/\*\]
21. 2015-04-24 01:12:46.296 INFO 4428 --- \[ost-startStop-1\] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: \[/\*\]
22. 2015-04-24 01:12:46.481 INFO 4428 --- \[ main\] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@2923a47c: startup date \[Fri Apr 24 01:12:41 CST 2015\]; root of context hierarchy
23. 2015-04-24 01:12:46.542 INFO 4428 --- \[ main\] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "\{\[/hellow\],methods=\[\],params=\[\],headers=\[\],consumes=\[\],produces=\[\],custom=\[\]\}" onto public java.lang.String controller.HellowController.hellow()
24. 2015-04-24 01:12:46.544 INFO 4428 --- \[ main\] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "\{\[/error\],methods=\[\],params=\[\],headers=\[\],consumes=\[\],produces=\[\],custom=\[\]\}" 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)
25. 2015-04-24 01:12:46.545 INFO 4428 --- \[ main\] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "\{\[/error\],methods=\[\],params=\[\],headers=\[\],consumes=\[\],produces=\[text/html\],custom=\[\]\}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest)
26. 2015-04-24 01:12:46.595 INFO 4428 --- \[ main\] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path \[/\*\*\] onto handler of type \[class org.springframework.web.servlet.resource.ResourceHttpRequestHandler\]
27. 2015-04-24 01:12:46.596 INFO 4428 --- \[ main\] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path \[/webjars/\*\*\] onto handler of type \[class org.springframework.web.servlet.resource.ResourceHttpRequestHandler\]
28. 2015-04-24 01:12:46.639 INFO 4428 --- \[ main\] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path \[/\*\*/favicon.ico\] onto handler of type \[class org.springframework.web.servlet.resource.ResourceHttpRequestHandler\]
29. 2015\-04\-24 01:12:46.708 INFO 4428 \--- \[ main\] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
30. 2015\-04\-24 01:12:46.829 INFO 4428 \--- \[ main\] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http)
31. 2015\-04\-24 01:12:46.830 INFO 4428 \--- \[ main\] controller.HellowController : Started HellowController in 5.978 seconds (JVM running for 6.739)
32. 2015\-04\-24 01:13:29.470 INFO 4428 \--- \[nio-8080\-exec-1\] o.a.c.c.C.\[Tomcat\].\[localhost\].\[/\] : Initializing Spring FrameworkServlet 'dispatcherServlet'
33. 2015\-04\-24 01:13:29.470 INFO 4428 \--- \[nio-8080\-exec-1\] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization started
34. 2015\-04\-24 01:13:29.486 INFO 4428 \--- \[nio-8080\-exec-1\] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization completed in 16 ms

D:\soft\Java\jdk1.7.0_04\bin\java -Didea.launcher.port=7532 "-Didea.launcher.bin.path=D:\idea\ideainstall\IntelliJ IDEA 14.0.2\bin" -Dfile.encoding=UTF-8 -classpath "D:\soft\Java\jdk1.7.0_04\jre\lib\charsets.jar;D:\soft\Java\jdk1.7.0_04\jre\lib\deploy.jar;D:\soft\Java\jdk1.7.0_04\jre\lib\javaws.jar;D:\soft\Java\jdk1.7.0_04\jre\lib\jce.jar;D:\soft\Java\jdk1.7.0_04\jre\lib\jfr.jar;D:\soft\Java\jdk1.7.0_04\jre\lib\jsse.jar;D:\soft\Java\jdk1.7.0_04\jre\lib\management-agent.jar;D:\soft\Java\jdk1.7.0_04\jre\lib\plugin.jar;D:\soft\Java\jdk1.7.0_04\jre\lib\resources.jar;D:\soft\Java\jdk1.7.0_04\jre\lib\rt.jar;D:\soft\Java\jdk1.7.0_04\jre\lib\ext\dnsns.jar;D:\soft\Java\jdk1.7.0_04\jre\lib\ext\localedata.jar;D:\soft\Java\jdk1.7.0_04\jre\lib\ext\sunec.jar;D:\soft\Java\jdk1.7.0_04\jre\lib\ext\sunjce_provider.jar;D:\soft\Java\jdk1.7.0_04\jre\lib\ext\sunmscapi.jar;D:\soft\Java\jdk1.7.0_04\jre\lib\ext\zipfs.jar;D:\idea\ideaworkspace\Springboot\target\classes;C:\Users\qin\.m2\repository\org\springframework\boot\spring-boot-starter-web\1.2.3.RELEASE\spring-boot-starter-web-1.2.3.RELEASE.jar;C:\Users\qin\.m2\repository\org\springframework\boot\spring-boot-starter\1.2.3.RELEASE\spring-boot-starter-1.2.3.RELEASE.jar;C:\Users\qin\.m2\repository\org\springframework\boot\spring-boot\1.2.3.RELEASE\spring-boot-1.2.3.RELEASE.jar;C:\Users\qin\.m2\repository\org\springframework\boot\spring-boot-autoconfigure\1.2.3.RELEASE\spring-boot-autoconfigure-1.2.3.RELEASE.jar;C:\Users\qin\.m2\repository\org\springframework\boot\spring-boot-starter-logging\1.2.3.RELEASE\spring-boot-starter-logging-1.2.3.RELEASE.jar;C:\Users\qin\.m2\repository\org\slf4j\jcl-over-slf4j\1.7.11\jcl-over-slf4j-1.7.11.jar;C:\Users\qin\.m2\repository\org\slf4j\slf4j-api\1.7.11\slf4j-api-1.7.11.jar;C:\Users\qin\.m2\repository\org\slf4j\jul-to-slf4j\1.7.11\jul-to-slf4j-1.7.11.jar;C:\Users\qin\.m2\repository\org\slf4j\log4j-over-slf4j\1.7.11\log4j-over-slf4j-1.7.11.jar;C:\Users\qin\.m2\repository\ch\qos\logback\logback-classic\1.1.3\logback-classic-1.1.3.jar;C:\Users\qin\.m2\repository\ch\qos\logback\logback-core\1.1.3\logback-core-1.1.3.jar;C:\Users\qin\.m2\repository\org\yaml\snakeyaml\1.14\snakeyaml-1.14.jar;C:\Users\qin\.m2\repository\org\springframework\boot\spring-boot-starter-tomcat\1.2.3.RELEASE\spring-boot-starter-tomcat-1.2.3.RELEASE.jar;C:\Users\qin\.m2\repository\org\apache\tomcat\embed\tomcat-embed-core\8.0.20\tomcat-embed-core-8.0.20.jar;C:\Users\qin\.m2\repository\org\apache\tomcat\embed\tomcat-embed-el\8.0.20\tomcat-embed-el-8.0.20.jar;C:\Users\qin\.m2\repository\org\apache\tomcat\embed\tomcat-embed-logging-juli\8.0.20\tomcat-embed-logging-juli-8.0.20.jar;C:\Users\qin\.m2\repository\org\apache\tomcat\embed\tomcat-embed-websocket\8.0.20\tomcat-embed-websocket-8.0.20.jar;C:\Users\qin\.m2\repository\com\fasterxml\jackson\core\jackson-databind\2.4.5\jackson-databind-2.4.5.jar;C:\Users\qin\.m2\repository\com\fasterxml\jackson\core\jackson-annotations\2.4.5\jackson-annotations-2.4.5.jar;C:\Users\qin\.m2\repository\com\fasterxml\jackson\core\jackson-core\2.4.5\jackson-core-2.4.5.jar;C:\Users\qin\.m2\repository\org\hibernate\hibernate-validator\5.1.3.Final\hibernate-validator-5.1.3.Final.jar;C:\Users\qin\.m2\repository\javax\validation\validation-api\1.1.0.Final\validation-api-1.1.0.Final.jar;C:\Users\qin\.m2\repository\org\jboss\logging\jboss-logging\3.1.3.GA\jboss-logging-3.1.3.GA.jar;C:\Users\qin\.m2\repository\com\fasterxml\classmate\1.0.0\classmate-1.0.0.jar;C:\Users\qin\.m2\repository\org\springframework\spring-core\4.1.6.RELEASE\spring-core-4.1.6.RELEASE.jar;C:\Users\qin\.m2\repository\org\springframework\spring-web\4.1.6.RELEASE\spring-web-4.1.6.RELEASE.jar;C:\Users\qin\.m2\repository\org\springframework\spring-aop\4.1.6.RELEASE\spring-aop-4.1.6.RELEASE.jar;C:\Users\qin\.m2\repository\aopalliance\aopalliance\1.0\aopalliance-1.0.jar;C:\Users\qin\.m2\repository\org\springframework\spring-beans\4.1.6.RELEASE\spring-beans-4.1.6.RELEASE.jar;C:\Users\qin\.m2\repository\org\springframework\spring-context\4.1.6.RELEASE\spring-context-4.1.6.RELEASE.jar;C:\Users\qin\.m2\repository\org\springframework\spring-webmvc\4.1.6.RELEASE\spring-webmvc-4.1.6.RELEASE.jar;C:\Users\qin\.m2\repository\org\springframework\spring-expression\4.1.6.RELEASE\spring-expression-4.1.6.RELEASE.jar;D:\idea\ideainstall\IntelliJ IDEA 14.0.2\lib\idea_rt.jar" com.intellij.rt.execution.application.AppMain controller.HellowController
    
      .   ____          _            __ _ _
     /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
    ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
     \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
      '  |____| .__|_| |_|_| |_\__, | / / / /
     =========|_|==============|___/=/_/_/_/
     :: Spring Boot ::        (v1.2.3.RELEASE)
    
    2015-04-24 01:12:41.399  INFO 4428 --- [           main] controller.HellowController              : Starting HellowController on qin-PC with PID 4428 (D:\idea\ideaworkspace\Springboot\target\classes started by qin in D:\idea\ideaworkspace\Springboot)
    2015-04-24 01:12:41.458  INFO 4428 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@2923a47c: startup date [Fri Apr 24 01:12:41 CST 2015]; root of context hierarchy
    2015-04-24 01:12:42.393  INFO 4428 --- [           main] o.s.b.f.s.DefaultListableBeanFactory     : Overriding bean definition for bean 'beanNameViewResolver': replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration; factoryMethodName=beanNameViewResolver; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/web/ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration.class]] with [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter; factoryMethodName=beanNameViewResolver; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter.class]]
    2015-04-24 01:12:44.399  INFO 4428 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
    2015-04-24 01:12:44.959  INFO 4428 --- [           main] o.apache.catalina.core.StandardService   : Starting service Tomcat
    2015-04-24 01:12:44.973  INFO 4428 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/8.0.20
    2015-04-24 01:12:45.332  INFO 4428 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
    2015-04-24 01:12:45.332  INFO 4428 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 3880 ms
    2015-04-24 01:12:46.274  INFO 4428 --- [ost-startStop-1] o.s.b.c.e.ServletRegistrationBean        : Mapping servlet: 'dispatcherServlet' to [/]
    2015-04-24 01:12:46.295  INFO 4428 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean  : Mapping filter: 'characterEncodingFilter' to: [/*]
    2015-04-24 01:12:46.296  INFO 4428 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean  : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
    2015-04-24 01:12:46.481  INFO 4428 --- [           main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@2923a47c: startup date [Fri Apr 24 01:12:41 CST 2015]; root of context hierarchy
    2015-04-24 01:12:46.542  INFO 4428 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/hellow],methods=[],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String controller.HellowController.hellow()
    2015-04-24 01:12:46.544  INFO 4428 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],methods=[],params=[],headers=[],consumes=[],produces=[],custom=[]}" 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)
    2015-04-24 01:12:46.545  INFO 4428 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],methods=[],params=[],headers=[],consumes=[],produces=[text/html],custom=[]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest)
    2015-04-24 01:12:46.595  INFO 4428 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
    2015-04-24 01:12:46.596  INFO 4428 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
    2015-04-24 01:12:46.639  INFO 4428 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
    2015-04-24 01:12:46.708  INFO 4428 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Registering beans for JMX exposure on startup
    2015-04-24 01:12:46.829  INFO 4428 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http)
    2015-04-24 01:12:46.830  INFO 4428 --- [           main] controller.HellowController              : Started HellowController in 5.978 seconds (JVM running for 6.739)
    2015-04-24 01:13:29.470  INFO 4428 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring FrameworkServlet 'dispatcherServlet'
    2015-04-24 01:13:29.470  INFO 4428 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : FrameworkServlet 'dispatcherServlet': initialization started
    2015-04-24 01:13:29.486  INFO 4428 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : FrameworkServlet 'dispatcherServlet': initialization completed in 16 ms

默认的内嵌容器，为tomcat，当然这个我们可以随便指定，包括端口号，http访问：  
  
  
  
![点击查看原始大小图片][1f2788b6-1e94-3388-8136-d21be1e19260.png]  
  
**ok，至此，我们一个简单的http应用就开发完毕了，给人的感觉就是简直比用Python的Django和PHP还轻，而且还是我们十分熟悉的JAVA开发，所以与很多其他的JAVA开源项目相结合非常容易，比如Apache Lucene，Solr，Hadoop，Spark，ElasticSearch等，支持很多好处，不言而喻！  
  
  
  
  
欢迎大家扫码关注微信公众号：我是攻城师，我们一起学习，进步和交流!（woshigcs）  
本公众号的内容是有关搜索和大数据技术和互联网等方面内容的分享，也是一个温馨的技术互动交流的小家园，有什么问题随时都可以留言，欢迎大家来访！**

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