如何从Maven exec插件启动/停止Rails应用程序？

Question

我想从Maven exec插件启动一个Rails应用程序。我使用./script/rails server启动服务器，使用kill -9 cat tmp/pids/server.pid停止服务器。但是exec在服务器启动后不断等待。是否有可能在后台运行这样的shell命令而不是等待？有没有更好的方式来从Maven开始/停止rails应用程序？这里是我的pom.xml：

  <plugin> 
       <groupId>org.codehaus.mojo</groupId> 
       <artifactId>exec-maven-plugin</artifactId> 
       <version>1.1</version> 
       <executions> 
        <execution> 
         <id>start-rails-app</id> 
         <phase>pre-integration-test</phase> 
         <configuration> 
          <executable>script/rails</executable> 
          <workingDirectory>${rails.app.dir}</workingDirectory> 
          <arguments> 
           <argument>server</argument> 
          </arguments> 
         </configuration> 
         <goals> 
          <goal>exec</goal> 
         </goals> 
        </execution> 
        <execution> 
         <id>stop-rails-app</id> 
         <phase>post-integration-test</phase> 
         <configuration> 
          <executable>kill -9 `cat tmp/pids/server.pid`</executable> 
          <workingDirectory>${rails.app.dir}</workingDirectory> 
         </configuration> 
         <goals> 
          <goal>exec</goal> 
         </goals> 
        </execution> 
       </executions> 
      </plugin> 

Answer 1

传递-d参数来启动服务器作为后台进程：rails server -d。

这里的rails server命令的详细信息：

rails server -h 
Usage: rails server [mongrel, thin, etc] [options] 
    -p, --port=port     Runs Rails on the specified port. 
            Default: 3000 
    -b, --binding=ip     Binds Rails to the specified ip. 
            Default: 0.0.0.0 
    -c, --config=file    Use custom rackup configuration file 
    -d, --daemon      Make server run as a Daemon. 
    -u, --debugger     Enable ruby-debugging for the server. 
    -e, --environment=name   Specifies the environment to run this server under (test/development/production). 
            Default: development 
    -P, --pid=pid     Specifies the PID file. 
            Default: tmp/pids/server.pid 

    -h, --help      Show this help message.