Question

使用这些版本的库

    <java.version>1.8</java.version>
    <javax.websockets.version>1.1</javax.websockets.version>
    <jetty.version>9.3.8.v20160314</jetty.version>
    <jersey.version>2.22.2</jersey.version>
    <jgit.version>4.3.0.201604071810-r</jgit.version>
    <json.version>20160212</json.version>
    <junit.version>4.12</junit.version>
    <slf4j.version>1.7.12</slf4j.version>
    <maven.shade.version>2.4.1</maven.shade.version>

使用嵌入式Jetty

    Server server = new Server(Settings.PORT);
    ResourceHandler resourceHandler = new ResourceHandler();
    resourceHandler.setDirectoriesListed(true);
    resourceHandler.setWelcomeFiles(new String[] { "./html/index.html" });
    resourceHandler.setResourceBase("./ressources/webcontent");

    ShutdownHandler shutdownHandler = new ShutdownHandler("switchoff", true, true);

    HandlerList handlers = new HandlerList();
    handlers.setHandlers(new Handler[] { resourceHandler, shutdownHandler, new DefaultHandler() });
    server.setHandler(handlers);

这显示了index.html

http://localhost:22279/

但这失败了400

http://localhost:22279/shutdown?token= “关机”

任何想法为什么？

Answer 1

ShutdownHandler的javadoc表示关闭请求是POST请求。

然后，对http://localhost:22279/shutdown?token=switchoff的调用必须是POST请求（也没有引号）。

另请注意，ShutdownHandler有sendShutdown()方法可以帮助您。

由于Jetty是一个开源项目，你甚至可以查看how sendShutdown() is implemented。

Answer 2

通过从文档中剪切出来的基本上复制/粘贴来解决它...不确定这是否是一个很好的方法，因为它有一个＆＃34;已经挂起的回调＆＃34;抱怨但它有效

所以在Jersey Context Holder中

@GET
@Path("shutdown")
@Produces(MediaType.TEXT_PLAIN)
public String shutdown(){
    new Thread(new ShutDown()).start();                 
    return "Down";
}

并且Shutdown Class看起来像那样

public class ShutDown implements Runnable{

private static final org.slf4j.Logger log = LoggerFactory.getLogger(ShutDown.class);

private static final String SHUTDOWNCOOKIE = "switchoff";

public void run() {
    try {
        URL url = new URL("http://localhost:8080/shutdown?token=" + SHUTDOWNCOOKIE);
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setRequestMethod("POST");
        connection.getResponseCode();
        String attempt = "Shutting down " + url + ": " + connection.getResponseMessage();  
        log.info(attempt);
    } catch (Exception e) {
        String error = "Error " + e.getMessage(); 
        log.debug(error);
    }
}

}

非常感谢任何剪裁评论！

ShutdownHandler在Embedded Jetty

2 个答案: