Question

我是Gradle的新手，我正在使用一个小任务来启动/停止本地tomcat服务器。

我的gradle任务：

task startTomcat(type: Exec){
    workingDir ENV['CATALINA_HOME'] + '/bin'
    commandLine 'cmd', '/c', 'catalina.bat'
    args 'start'
}

当我运行此任务时，tomcat会启动。但是任务没有完成并且一直在等待。我已经通过了Exec documentation page，但无法得到任何线索。

请帮忙。

Answer 1

感谢Peter的意见。以下是使用ProcessBuilder：

为我工作的解决方案

/* Configuration for tomcat */
task catalinaConfig {
    ext.binDir = ENV['CATALINA_HOME'] + "\\bin"
}

task startTomcat << {   
    println "Tomcat path: " + catalinaConfig.binDir 
    ProcessBuilder pb = new ProcessBuilder(["cmd", "/c", "catalina.bat", "start"]);
    pb.directory(new File(catalinaConfig.binDir));

    println "Starting tomcat now ... "
    Process proc = pb.start();
    proc.waitFor();
    println "Tomcat is coming up now ... " + proc.exitValue()
}

task stopTomcat << {    
    println "Tomcat path: " + catalinaConfig.binDir 
    ProcessBuilder pb1 = new ProcessBuilder(["cmd", "/c", "catalina.bat", "stop"]);
    pb1.directory(new File(catalinaConfig.binDir));

    println "Stopping tomcat now ... "
    Process proc1 = pb1.start();
    proc1.waitFor();
}

Answer 2

由于您在Windows上运行，您可能会遇到此错误：Process execution hangs on Windows if child processes are still alive。不幸的是，我没有更简单的解决方法来建议。

Answer 3

要在外部流程启动后立即退出，我使用了：

task startServer(type:Exec) {
  ProcessBuilder pb = new ProcessBuilder("cmd","/c","start.bat")
  pb.directory(new File("workingFolder"))
  pb.start();
}

Gradle Exec任务未退出

3 个答案: