Spring Boot的应用启动与关闭

文章作者：Tyan
博客：noahsnail.com | CSDN | 简书

1. Spring Boot应用打包

Spring Boot应用可以打成jar包，其中内嵌tomcat，因此可以直接启动使用。但是在Spring Boot应用启动之前，首先需要进行打包，本文讲述的是Maven工程的打包，打包需要的前提条件(pom.xml文件中的内容)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>

...

打包命令为：

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中运行run -> Maven build...，在Goals中填写clean package -Dmaven.test.skip=true，运行，打包完成。

2. Spring Boot应用启动

Spring Boot的启动命令为：

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应用关闭

Spring Boot应用关闭的前提条件是POM.xml添加以下内容：

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

application.properties中添加：

#启用shutdown
endpoints.shutdown.enabled=true
#禁用密码验证
endpoints.shutdown.sensitive=false

关闭命令为：

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..."}

如果要配置路径，需要在application.properties中添加management.context-path=/manage，则关闭命令变为curl -X POST host:port/manage/shutdown。

4. 安全验证

如果在关闭时需要安全验证，则在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：

#开启shutdown的安全验证
endpoints.shutdown.sensitive=true

#验证用户名
security.user.name=admin

#验证密码
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

关闭命令为：

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..."}
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