Spring cloud的Maven插件(二):run目标

简介

  Spring Boot Maven Plugin插件提供spring boot在maven中的支持。允许你打包可运行的jar包或war包。

  插件提供了几个maven目标和Spring Boot 应用一起工作。总的有:

  run: 这个目标和直接java -jar 来启动基本相同,唯一不同的是java -jar需要打包后才能跑,而run目标不需要。这个当程序编译打包需要比较长时间时,用run目标来跑可以节约时间。

一、简单使用

  Spring Boot Maven Plugin 包括一个 run 目标,该目标被用于从命令行启动你的应用程序。比如:

1 mvn spring-boot:run 

  eclipse用法如下:

  

  启动后的日志:

 1 [INFO] Scanning for projects...
 2 [INFO] 
 3 [INFO] ------------------------------------------------------------------------
 4 [INFO] Building springboot 0.0.1-SNAPSHOT
 5 [INFO] ------------------------------------------------------------------------
 6 [INFO] 
 7 [INFO] >>> spring-boot-maven-plugin:1.5.6.RELEASE:run (default-cli) > test-compile @ springboot >>>
 8 [INFO] 
 9 [INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ springboot ---
10 [INFO] Using 'UTF-8' encoding to copy filtered resources.
11 [INFO] Copying 1 resource
12 [INFO] Copying 0 resource
13 [INFO] 
14 [INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ springboot ---
15 [INFO] Nothing to compile - all classes are up to date
16 [INFO] 
17 [INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ springboot ---
18 [INFO] Using 'UTF-8' encoding to copy filtered resources.
19 [INFO] Copying 0 resource
20 [INFO] 
21 [INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ springboot ---
22 [INFO] Nothing to compile - all classes are up to date
23 [INFO] 
24 [INFO] <<< spring-boot-maven-plugin:1.5.6.RELEASE:run (default-cli) < test-compile @ springboot <<<
25 [INFO] 
26 [INFO] 
27 [INFO] --- spring-boot-maven-plugin:1.5.6.RELEASE:run (default-cli) @ springboot ---
28 [INFO] Downloading: http://maven.aliyun.com/nexus/content/groups/public/org/springframework/boot/spring-boot-loader-tools/1.5.6.RELEASE/spring-boot-loader-tools-1.5.6.RELEASE.pom
29 [INFO] Downloaded: http://maven.aliyun.com/nexus/content/groups/public/org/springframework/boot/spring-boot-loader-tools/1.5.6.RELEASE/spring-boot-loader-tools-1.5.6.RELEASE.pom (3.8 kB at 5.0 kB/s)
30 [INFO] Downloading: http://maven.aliyun.com/nexus/content/groups/public/org/springframework/boot/spring-boot-loader-tools/1.5.6.RELEASE/spring-boot-loader-tools-1.5.6.RELEASE.jar
31 [INFO] Downloaded: http://maven.aliyun.com/nexus/content/groups/public/org/springframework/boot/spring-boot-loader-tools/1.5.6.RELEASE/spring-boot-loader-tools-1.5.6.RELEASE.jar (151 kB at 107 kB/s)
32 
33   .   ____          _            __ _ _
34  /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
35 ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
36  \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
37   '  |____| .__|_| |_|_| |_\__, | / / / /
38  =========|_|==============|___/=/_/_/_/
39  :: Spring Boot ::        (v1.5.6.RELEASE)
40 
41 2017-09-16 16:15:53.173  INFO 6900 --- [           main] c.p.springboot.SpringbootApplication     : Starting SpringbootApplication on pc-PC with PID 6900 (D:\qinxiong\workspaceSpring\springboot\target\classes started by Administrator in D:\qinxiong\workspaceSpring\springboot)
42 2017-09-16 16:15:53.173  INFO 6900 --- [           main] c.p.springboot.SpringbootApplication     : No active profile set, falling back to default profiles: default
43 2017-09-16 16:15:53.204  INFO 6900 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@2689929b: startup date [Sat Sep 16 16:15:53 CST 2017]; root of context hierarchy
44 2017-09-16 16:15:54.668  INFO 6900 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
45 2017-09-16 16:15:54.683  INFO 6900 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
46 2017-09-16 16:15:54.683  INFO 6900 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/8.5.16
47 2017-09-16 16:15:54.762  INFO 6900 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
48 2017-09-16 16:15:54.762  INFO 6900 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 1558 ms
49 2017-09-16 16:15:54.918  INFO 6900 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean  : Mapping servlet: 'dispatcherServlet' to [/]
50 2017-09-16 16:15:54.918  INFO 6900 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]
51 2017-09-16 16:15:54.918  INFO 6900 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
52 2017-09-16 16:15:54.918  INFO 6900 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'httpPutFormContentFilter' to: [/*]
53 2017-09-16 16:15:54.918  INFO 6900 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]
54 2017-09-16 16:15:55.168  INFO 6900 --- [           main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@2689929b: startup date [Sat Sep 16 16:15:53 CST 2017]; root of context hierarchy
55 2017-09-16 16:15:55.230  INFO 6900 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/hello]}" onto public java.lang.String com.pitaya.springboot.HelloController.index()
56 2017-09-16 16:15:55.230  INFO 6900 --- [           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)
57 2017-09-16 16:15:55.230  INFO 6900 --- [           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)
58 2017-09-16 16:15:55.246  INFO 6900 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
59 2017-09-16 16:15:55.246  INFO 6900 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
60 2017-09-16 16:15:55.293  INFO 6900 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
61 2017-09-16 16:15:55.404  INFO 6900 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Registering beans for JMX exposure on startup
62 2017-09-16 16:15:55.466  INFO 6900 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http)
63 2017-09-16 16:15:55.466  INFO 6900 --- [           main] c.p.springboot.SpringbootApplication     : Started SpringbootApplication in 2.637 seconds (JVM running for 8.001)
run目标的日志

 二、实战

  默认情况下,应用程序直接从Maven JVM执行。 如果您需要在分叉进程(maven进程fork出来的子进程)中运行,可以使用'fork'选项。 如果指定了'jvmArguments'或'agent'选项,或者如果存在devtools,应用程序也会在分叉进程执行。

  如果需要指定一些JVM参数(即用于调试目的),可以使用jvmArguments参数,请看下面实例:

 1 <project>
 2   ...
 3   <build>
 4     ...
 5     <plugins>
 6       ...
 7       <plugin>
 8         <groupId>org.springframework.boot</groupId>
 9         <artifactId>spring-boot-maven-plugin</artifactId>
10         <version>1.5.7.RELEASE</version>
11         <configuration>
12           <jvmArguments>
13             -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=5005
14           </jvmArguments>
15         </configuration>
16         ...
17       </plugin>
18       ...
19     </plugins>
20     ...
21   </build>
22   ...
23 </project>
插件使用jvmArguments

  请注意,由于您指定了一些JVM参数,所以该应用是自动在分叉进程中运行。这些参数也可以在命令行中指定,具体如下:

mvn spring-boot:run -Drun.jvmArguments="-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=5005"
命令行指定jvm参数

  当我们程序中设置了多个profile的yml文件,比如application.yml,application-dev.yml,application-test.yml,application-prd.yml。我们可以通过设置profiles参数来指定应用程序的active的profile。下面的例子演示指定要application.yml和application-test.yml两个文件。具体如下:

<project>
  ...
  <build>
    ...
    <plugins>
      ...
      <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
        <version>1.5.7.RELEASE</version>
        <configuration>
          <profiles>
            <profile>test</profile>
          </profiles>
        </configuration>
        ...
      </plugin>
      ...
    </plugins>
    ...
  </build>
  ...
</project>
插件使用profile

  如果要多加一个profile,只要多添加<profile>prd</profile>即可。

  同样的,要启动的profiles也可以通过命令行来指定,需要使用多个profile时,用逗号隔开,具体如下:

1 mvn spring-boot:run -Drun.profiles=test,prd
命令行指定profile

 

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posted @ 2017-09-19 22:25 壮壮熊 阅读(...) 评论(...) 编辑 收藏