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Spring Boot的應用啟動與關閉的方法

 更新時間：2017年12月07日 10:55:50   作者：SnailTyan  
本篇文章主要介紹了Spring Boot的應用啟動與關閉的方法，小編覺得挺不錯的，現(xiàn)在分享給大家，也給大家做個參考。一起跟隨小編過來看看吧

Spring Boot，作為Spring框架對“約定優(yōu)先于配置(Convention Over Configuration)”理念的最佳實踐的產(chǎn)物，它能幫助我們很快捷的創(chuàng)建出獨立運行、產(chǎn)品級別的基于Spring框架的應用，大部分Spring Boot應用只需要非常少的配置就可以快速運行起來，是一個與微服務(MicroServices)相當契合的微框架。

1. Spring Boot應用打包

Spring Boot應用可以打成jar包，其中內(nèi)嵌tomcat，因此可以直接啟動使用。但是在Spring Boot應用啟動之前，首先需要進行打包，本文講述的是Maven工程的打包，打包需要的前提條件(pom.xml文件中的內(nèi)容)是：

...

<packaging>jar</packaging>

...

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-web</artifactId>
</dependency>

...

<build>
  <plugins>
    <plugin>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-maven-plugin</artifactId>
      <configuration>
        <mainClass>com.***.Application</mainClass>
      </configuration>
      <executions>
        <execution>
          <goals>
            <goal>repackage</goal>
          </goals>
        </execution>
      </executions>
    </plugin>
  </plugins>
</build>

...

打包命令為：

mvn clean package -Dmaven.test.skip=true
# Demo
$ mvn clean package -Dmaven.test.skip=true
[INFO] Scanning for projects...
[WARNING] 
[WARNING] Some problems were encountered while building the effective model for com.example:myproject:jar:0.0.1-SNAPSHOT
[WARNING] 'build.plugins.plugin.version' for org.springframework.boot:spring-boot-maven-plugin is missing. @ line 38, column 17
[WARNING] 
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING] 
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
[WARNING] 
[INFO]                                     
[INFO] ------------------------------------------------------------------------
[INFO] Building myproject 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ myproject ---
[INFO] Deleting /Users/ltc/Spring Boot Demo/target
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ myproject ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 1 resource
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ myproject ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent!
[INFO] Compiling 1 source file to /Users/ltc/Spring Boot Demo/target/classes
[INFO] 
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ myproject ---
[INFO] Not copying test resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ myproject ---
[INFO] Not compiling test sources
[INFO] 
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ myproject ---
[INFO] Tests are skipped.
[INFO] 
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ myproject ---
[INFO] Building jar: /Users/ltc/Spring Boot Demo/target/myproject-0.0.1-SNAPSHOT.jar
[INFO] 
[INFO] --- spring-boot-maven-plugin:1.5.0.RC1:repackage (default) @ myproject ---
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.861 s
[INFO] Finished at: 2017-01-13T15:31:32+08:00
[INFO] Final Memory: 26M/308M
[INFO] ------------------------------------------------------------------------

或在eclipse中運行run -> Maven build...，在Goals中填寫clean package -Dmaven.test.skip=true，運行，打包完成。

2. Spring Boot應用啟動

Spring Boot的啟動命令為：

java -jar application.jar
# Demo
$ java -jar target/myproject-0.0.1-SNAPSHOT.jar 
 .  ____     _      __ _ _
 /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/ ___)| |_)| | | | | || (_| | ) ) ) )
 ' |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::    (v1.4.3.RELEASE)
2017-01-13 15:31:36.911 INFO 62119 --- [      main] com.test.Example             : Starting Example on local with PID 62119 (/Users/ltc/Spring Boot Demo/target/myproject-0.0.1-SNAPSHOT.jar started by liutianchi in /Users/ltc/Spring Boot Demo)
2017-01-13 15:31:36.916 INFO 62119 --- [      main] com.test.Example             : No active profile set, falling back to default profiles: default
2017-01-13 15:31:36.981 INFO 62119 --- [      main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@b1a58a3: startup date [Fri Jan 13 15:31:36 CST 2017]; root of context hierarchy
2017-01-13 15:31:38.602 INFO 62119 --- [      main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2017-01-13 15:31:38.615 INFO 62119 --- [      main] o.apache.catalina.core.StandardService  : Starting service Tomcat
2017-01-13 15:31:38.616 INFO 62119 --- [      main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.6
2017-01-13 15:31:38.718 INFO 62119 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]    : Initializing Spring embedded WebApplicationContext
2017-01-13 15:31:38.718 INFO 62119 --- [ost-startStop-1] o.s.web.context.ContextLoader      : Root WebApplicationContext: initialization completed in 1740 ms
2017-01-13 15:31:38.927 INFO 62119 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2017-01-13 15:31:38.932 INFO 62119 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean  : Mapping filter: 'metricsFilter' to: [/*]
2017-01-13 15:31:38.932 INFO 62119 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean  : Mapping filter: 'characterEncodingFilter' to: [/*]
2017-01-13 15:31:38.932 INFO 62119 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean  : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2017-01-13 15:31:38.932 INFO 62119 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean  : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2017-01-13 15:31:38.932 INFO 62119 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean  : Mapping filter: 'requestContextFilter' to: [/*]
2017-01-13 15:31:38.932 INFO 62119 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean  : Mapping filter: 'webRequestLoggingFilter' to: [/*]
2017-01-13 15:31:38.932 INFO 62119 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean  : Mapping filter: 'applicationContextIdFilter' to: [/*]
2017-01-13 15:31:39.217 INFO 62119 --- [      main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@b1a58a3: startup date [Fri Jan 13 15:31:36 CST 2017]; root of context hierarchy
2017-01-13 15:31:39.310 INFO 62119 --- [      main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/]}" onto java.lang.String com.test.Example.home()
2017-01-13 15:31:39.313 INFO 62119 --- [      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)
2017-01-13 15:31:39.313 INFO 62119 --- [      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)
2017-01-13 15:31:39.338 INFO 62119 --- [      main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-01-13 15:31:39.338 INFO 62119 --- [      main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-01-13 15:31:39.378 INFO 62119 --- [      main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-01-13 15:31:39.665 INFO 62119 --- [      main] o.s.b.a.e.mvc.EndpointHandlerMapping   : Mapped "{[/manage/metrics/{name:.*}],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.MetricsMvcEndpoint.value(java.lang.String)
2017-01-13 15:31:39.665 INFO 62119 --- [      main] o.s.b.a.e.mvc.EndpointHandlerMapping   : Mapped "{[/manage/metrics || /manage/metrics.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-01-13 15:31:39.666 INFO 62119 --- [      main] o.s.b.a.e.mvc.EndpointHandlerMapping   : Mapped "{[/manage/mappings || /manage/mappings.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-01-13 15:31:39.667 INFO 62119 --- [      main] o.s.b.a.e.mvc.EndpointHandlerMapping   : Mapped "{[/manage/trace || /manage/trace.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-01-13 15:31:39.667 INFO 62119 --- [      main] o.s.b.a.e.mvc.EndpointHandlerMapping   : Mapped "{[/manage/info || /manage/info.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-01-13 15:31:39.668 INFO 62119 --- [      main] o.s.b.a.e.mvc.EndpointHandlerMapping   : Mapped "{[/manage/configprops || /manage/configprops.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-01-13 15:31:39.669 INFO 62119 --- [      main] o.s.b.a.e.mvc.EndpointHandlerMapping   : Mapped "{[/manage/heapdump || /manage/heapdump.json],methods=[GET],produces=[application/octet-stream]}" onto public void org.springframework.boot.actuate.endpoint.mvc.HeapdumpMvcEndpoint.invoke(boolean,javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) throws java.io.IOException,javax.servlet.ServletException
2017-01-13 15:31:39.669 INFO 62119 --- [      main] o.s.b.a.e.mvc.EndpointHandlerMapping   : Mapped "{[/manage/autoconfig || /manage/autoconfig.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-01-13 15:31:39.673 INFO 62119 --- [      main] o.s.b.a.e.mvc.EndpointHandlerMapping   : Mapped "{[/manage/env/{name:.*}],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EnvironmentMvcEndpoint.value(java.lang.String)
2017-01-13 15:31:39.673 INFO 62119 --- [      main] o.s.b.a.e.mvc.EndpointHandlerMapping   : Mapped "{[/manage/env || /manage/env.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-01-13 15:31:39.674 INFO 62119 --- [      main] o.s.b.a.e.mvc.EndpointHandlerMapping   : Mapped "{[/manage/health || /manage/health.json],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.HealthMvcEndpoint.invoke(java.security.Principal)
2017-01-13 15:31:39.675 INFO 62119 --- [      main] o.s.b.a.e.mvc.EndpointHandlerMapping   : Mapped "{[/manage/dump || /manage/dump.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-01-13 15:31:39.677 INFO 62119 --- [      main] o.s.b.a.e.mvc.EndpointHandlerMapping   : Mapped "{[/manage/shutdown || /manage/shutdown.json],methods=[POST]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.ShutdownMvcEndpoint.invoke()
2017-01-13 15:31:39.678 INFO 62119 --- [      main] o.s.b.a.e.mvc.EndpointHandlerMapping   : Mapped "{[/manage/beans || /manage/beans.json],methods=[GET],produces=[application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-01-13 15:31:39.799 INFO 62119 --- [      main] o.s.j.e.a.AnnotationMBeanExporter    : Registering beans for JMX exposure on startup
2017-01-13 15:31:39.809 INFO 62119 --- [      main] o.s.c.support.DefaultLifecycleProcessor : Starting beans in phase 0
2017-01-13 15:31:39.944 INFO 62119 --- [      main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http)
2017-01-13 15:31:39.949 INFO 62119 --- [      main] com.test.Example             : Started Example in 4.292 seconds (JVM running for 4.726)

3. Spring Boot應用關閉

下面主要有兩種方式進行Spring Boot的關閉：通過HTTP發(fā)送shutdown信號，或者通過service stop的方式。

Spring Boot應用關閉的前提條件是POM.xml添加以下內(nèi)容：

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-actuator</artifactId>
</dependency>

application.properties中添加：

#啟用shutdown
endpoints.shutdown.enabled=true
#禁用密碼驗證
endpoints.shutdown.sensitive=false

關閉命令為：

curl -X POST host:port/shutdown
# Demo
$ curl -X POST http://localhost:8080/shutdown
{"message":"Shutting down, bye..."}
$ curl -X POST http://localhost:8080/manage/shutdown
{"message":"Shutting down, bye..."}

如果要配置路徑，需要在application.properties中添加management.context-path=/manage，則關閉命令變?yōu)閏url -X POST host:port/manage/shutdown。

4. 安全驗證

如果在關閉時需要安全驗證，則在pom.xml文件中添加：

<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-security</artifactId>
</dependency>

application.properties中添加：

#開啟shutdown的安全驗證
endpoints.shutdown.sensitive=true
#驗證用戶名
security.user.name=admin
#驗證密碼
security.user.password=admin
#角色
management.security.role=SUPERUSER
# 指定端口
management.port=8081
# 指定地址
management.address=127.0.0.1

關閉命令為：

curl -u admin:admin -X POST http://127.0.0.1:8081/manage/shutdown
# Demo
$ curl -u admin:admin -X POST http://127.0.0.1:8081/manage/shutdown
{"message":"Shutting down, bye..."}

以上就是本文的全部內(nèi)容，希望對大家的學習有所幫助，也希望大家多多支持腳本之家。

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