java - Tomcat 卡住部署 Spring Boot 应用程序

标签 java spring tomcat deployment watchservice

我试图在 Tomcat 9 中部署一些应用程序(4 个 spring boot web 应用程序)，我注意到其中 2 个使 Tomcat 日志显示:

17-Nov-2016 00:15:07.110 INFO [localhost-startStop-2] org.apache.catalina.startup.HostConfig.deployWAR Deploying web application archive /Users/viruskimera/apache-tomcat-9.0.0.M11/webapps/ftpoutbound990-0.0.1-SNAPSHOT.war

它保持这种方式只是部署它不显示部署完成。 问题是该应用程序即使没有完全显示已部署也能正常工作。 (我看到我的 log4j 条目和文件在受监控的文件夹中处理)

这些应用通过以下代码使用 Java watchService 监控 2 个不同的文件夹:

包 com.ftpoutbound990.monitor;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.ClosedWatchServiceException;
import java.nio.file.FileSystems;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardWatchEventKinds;
import java.nio.file.WatchEvent;
import java.nio.file.WatchKey;
import java.nio.file.WatchService;

import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

import com.ftpoutbound990.client.FtpoutboundApp;

@Component
public class MonitorDirectory {

    final static Logger logger = Logger.getLogger(MonitorDirectory.class);

    @Autowired
    private FtpoutboundApp ftpoutboundapp;

    @Value("${folder990}")
    private String folder990;

    public void startMonitoring() throws IOException, InterruptedException {
        logger.info("INICIO DE MONITOREO DE ARCHIVOS 990");
        try (WatchService watchService = FileSystems.getDefault().newWatchService()) {

            Path faxFolder = Paths.get(folder990);

            WatchService watchmyservice = FileSystems.getDefault().newWatchService();
            faxFolder.register(watchmyservice, StandardWatchEventKinds.ENTRY_CREATE);

            boolean valid = true;
            do {
                try {
                    WatchKey watchKey = watchmyservice.take();

                    for (WatchEvent event : watchKey.pollEvents()) {
                        WatchEvent.Kind kind = event.kind();
                        if (StandardWatchEventKinds.ENTRY_CREATE.equals(event.kind())) {
                            String fileName = event.context().toString();
                            logger.info("ARCHIVO NUEVO:" + fileName);
                            boolean isGrowing = false;
                            Long initialWeight = new Long(0);
                            Long finalWeight = new Long(0);
                            Path child = faxFolder.resolve(folder990 + fileName);
                            do {
                                initialWeight = child.toFile().length();
                                Thread.sleep(1000);
                                finalWeight = child.toFile().length();
                                isGrowing = initialWeight < finalWeight;
                                logger.info("AUN COPIANDO ARCHIVO:" + fileName);
                            } while (isGrowing);
                            logger.info("LISTO ARCHIVO:" + fileName);
                            getFile(fileName);
                        }
                    }
                    valid = watchKey.reset();
                    // Thread.sleep(1000 * 10);
                } catch (InterruptedException | ClosedWatchServiceException e) {
                    //watchmyservice.close();
                    Thread.currentThread().interrupt();
                }

            } while (valid);
        }
    }

    public void getFile(String fileName) throws IOException {

        File file = new File(folder990 + fileName);
        ftpoutboundapp.createGateway(file);
    }

}

如果我删除 Do-While 应用程序完成部署!但为什么？这是一个标准的 Java watchservice 代码，任何人都可以帮助我意识到我遗漏了什么/有什么问题吗？ 问题是 Tomcat 没有部署我的第 4 个应用程序，因为它一直在部署第 3 个应用程序。 预先感谢您的帮助

编辑 1:添加线程

28-Dec-2016 17:57:27.558 INFO [main] org.apache.catalina.core.StandardServer.await A valid shutdown command was received via the shutdown port. Stopping the Server instance.
28-Dec-2016 17:57:27.559 INFO [main] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["http-nio-8080"]
28-Dec-2016 17:57:27.613 INFO [main] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["ajp-nio-8009"]
28-Dec-2016 17:57:27.664 INFO [main] org.apache.catalina.core.StandardService.stopInternal Stopping service Catalina
28-Dec-2016 17:57:27.664 SEVERE [ContainerBackgroundProcessor[StandardEngine[Catalina]]] org.apache.catalina.startup.HostConfig.deployWARs Error waiting for multi-thread deployment of WAR files to complete
 java.lang.InterruptedException
    at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:404)
    at java.util.concurrent.FutureTask.get(FutureTask.java:191)
    at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:744)
    at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:407)
    at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1595)
    at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:280)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:92)
    at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1136)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1372)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1376)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1344)
    at java.lang.Thread.run(Thread.java:745)

28-Dec-2016 18:00:21.904 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version:        Apache Tomcat/9.0.0.M11
28-Dec-2016 18:00:21.907 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server built:          Oct 6 2016 18:54:10 UTC
28-Dec-2016 18:00:21.908 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server number:         9.0.0.0
28-Dec-2016 18:00:21.908 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name:               Mac OS X
28-Dec-2016 18:00:21.908 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Version:            10.9.5
28-Dec-2016 18:00:21.908 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Architecture:          x86_64
28-Dec-2016 18:00:21.908 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Java Home:             /Library/Java/JavaVirtualMachines/jdk1.8.0_73.jdk/Contents/Home/jre
28-Dec-2016 18:00:21.908 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Version:           1.8.0_73-b02
28-Dec-2016 18:00:21.908 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Vendor:            Oracle Corporation
28-Dec-2016 18:00:21.909 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE:         /Users/viruskimera/apache-tomcat-9.0.0.M11
28-Dec-2016 18:00:21.909 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME:         /Users/viruskimera/apache-tomcat-9.0.0.M11
28-Dec-2016 18:00:21.909 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.config.file=/Users/viruskimera/apache-tomcat-9.0.0.M11/conf/logging.properties
28-Dec-2016 18:00:21.909 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
28-Dec-2016 18:00:21.909 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djdk.tls.ephemeralDHKeySize=2048
28-Dec-2016 18:00:21.910 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.protocol.handler.pkgs=org.apache.catalina.webresources
28-Dec-2016 18:00:21.910 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.base=/Users/viruskimera/apache-tomcat-9.0.0.M11
28-Dec-2016 18:00:21.910 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.home=/Users/viruskimera/apache-tomcat-9.0.0.M11
28-Dec-2016 18:00:21.910 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.io.tmpdir=/Users/viruskimera/apache-tomcat-9.0.0.M11/temp
28-Dec-2016 18:00:21.910 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /Users/viruskimera/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.
28-Dec-2016 18:00:22.063 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["http-nio-8080"]
28-Dec-2016 18:00:22.093 INFO [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read
28-Dec-2016 18:00:22.096 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["ajp-nio-8009"]
28-Dec-2016 18:00:22.098 INFO [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read
28-Dec-2016 18:00:22.100 INFO [main] org.apache.catalina.startup.Catalina.load Initialization processed in 604 ms
28-Dec-2016 18:00:22.145 INFO [main] org.apache.catalina.core.StandardService.startInternal Starting service Catalina
28-Dec-2016 18:00:22.145 INFO [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet Engine: Apache Tomcat/9.0.0.M11
28-Dec-2016 18:00:22.224 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployWAR Deploying web application archive /Users/viruskimera/apache-tomcat-9.0.0.M11/webapps/ftpoutbound990-0.0.1-SNAPSHOT.war
28-Dec-2016 18:00:26.346 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v1.3.6.RELEASE)

最佳答案

盲目射击..

对您的代码的简单回顾表明，如果在 try catch 中抛出异常，则 boolean 标志 valid 保持 true 导致无限循环。

因此在 catch block 的主体中​​将标志设置为 false!

关于java - Tomcat 卡住部署 Spring Boot 应用程序，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/40656852/

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