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弹簧引导应用程序在启动后立即关闭(schedular)

java 来源:Ashish 10次浏览

我正在浏览弹簧调度程序指南(https://spring.io/guides/gs/scheduling-tasks/),但我的弹簧引导应用程序在启动后立即终止。我检查了所有的依赖关系,他们似乎很好。我的输出是弹簧引导应用程序在启动后立即关闭(schedular)

"C:\Program Files\Java\jdk1.8.0_111\bin\java" -agentlib:jdwp=transport=dt_socket,address=127.0.0.1:60501,suspend=y,server=n -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_111\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_111\jre\lib\rt.jar;C:\my-data\code\spring-guides\spring-schedular\target\classes;C:\Users\ashis\.m2\repository\org\springframework\boot\spring-boot-starter\1.5.9.RELEASE\spring-boot-starter-1.5.9.RELEASE.jar;C:\Users\ashis\.m2\repository\org\springframework\boot\spring-boot\1.5.9.RELEASE\spring-boot-1.5.9.RELEASE.jar;C:\Users\ashis\.m2\repository\org\springframework\spring-context\4.3.13.RELEASE\spring-context-4.3.13.RELEASE.jar;C:\Users\ashis\.m2\repository\org\springframework\spring-aop\4.3.13.RELEASE\spring-aop-4.3.13.RELEASE.jar;C:\Users\ashis\.m2\repository\org\springframework\spring-beans\4.3.13.RELEASE\spring-beans-4.3.13.RELEASE.jar;C:\Users\ashis\.m2\repository\org\springframework\spring-expression\4.3.13.RELEASE\spring-expression-4.3.13.RELEASE.jar;C:\Users\ashis\.m2\repository\org\springframework\boot\spring-boot-autoconfigure\1.5.9.RELEASE\spring-boot-autoconfigure-1.5.9.RELEASE.jar;C:\Users\ashis\.m2\repository\org\springframework\boot\spring-boot-starter-logging\1.5.9.RELEASE\spring-boot-starter-logging-1.5.9.RELEASE.jar;C:\Users\ashis\.m2\repository\ch\qos\logback\logback-classic\1.1.11\logback-classic-1.1.11.jar;C:\Users\ashis\.m2\repository\ch\qos\logback\logback-core\1.1.11\logback-core-1.1.11.jar;C:\Users\ashis\.m2\repository\org\slf4j\jcl-over-slf4j\1.7.25\jcl-over-slf4j-1.7.25.jar;C:\Users\ashis\.m2\repository\org\slf4j\jul-to-slf4j\1.7.25\jul-to-slf4j-1.7.25.jar;C:\Users\ashis\.m2\repository\org\slf4j\log4j-over-slf4j\1.7.25\log4j-over-slf4j-1.7.25.jar;C:\Users\ashis\.m2\repository\org\springframework\spring-core\4.3.13.RELEASE\spring-core-4.3.13.RELEASE.jar;C:\Users\ashis\.m2\repository\org\yaml\snakeyaml\1.17\snakeyaml-1.17.jar;C:\Users\ashis\.m2\repository\org\slf4j\slf4j-api\1.7.25\slf4j-api-1.7.25.jar;C:\Users\ashis\AppData\Local\JetBrains\Toolbox\apps\IDEA-U\ch-0\172.3544.35\lib\idea_rt.jar" com.ashish.springschedular.SpringSchedularApplication 
Connected to the target VM, address: '127.0.0.1:60501', transport: 'socket' 

    . ____   _   __ _ _ 
/\\/___'_ __ _ _(_)_ __ __ _ \ \ \ \ 
(()\___ | '_ | '_| | '_ \/ _` | \ \ \ \ 
\\/ ___)| |_)| | | | | || (_| | )))) 
    ' |____| .__|_| |_|_| |_\__, |//// 
=========|_|==============|___/=/_/_/_/ 
:: Spring Boot ::  (v1.5.9.RELEASE) 

2017-12-18 06:24:30.882 INFO 11836 --- [   main] c.a.s.SpringSchedularApplication   : Starting SpringSchedularApplication on DESKTOP-SP4170I with PID 11836 (C:\my-data\code\spring-guides\spring-schedular\target\classes started by ashish in C:\my-data\code\spring-guides\spring-schedular) 
2017-12-18 06:24:30.882 INFO 11836 --- [   main] c.a.s.SpringSchedularApplication   : No active profile set, falling back to default profiles: default 
2017-12-18 06:24:31.053 INFO 11836 --- [   main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.spring[email protected]1d8bd0de: startup date [Mon Dec 18 06:24:31 EST 2017]; root of context hierarchy 
2017-12-18 06:24:33.115 INFO 11836 --- [   main] o.s.j.e.a.AnnotationMBeanExporter  : Registering beans for JMX exposure on startup 
Disconnected from the target VM, address: '127.0.0.1:60501', transport: 'socket' 
2017-12-18 06:24:33.161 INFO 11836 --- [   main] c.a.s.SpringSchedularApplication   : Started SpringSchedularApplication in 2.997 seconds (JVM running for 4.005) 
2017-12-18 06:24:33.161 INFO 11836 --- [  Thread-2] s.c.a.AnnotationConfigApplicationContext : Closing org.spring[email protected]1d8bd0de: startup date [Mon Dec 18 06:24:31 EST 2017]; root of context hierarchy 
2017-12-18 06:24:33.161 INFO 11836 --- [  Thread-2] o.s.j.e.a.AnnotationMBeanExporter  : Unregistering JMX-exposed beans on shutdown 

Process finished with exit code 0 

我主要的应用程序代码:

import org.springframework.boot.SpringApplication; 
import org.springframework.boot.autoconfigure.SpringBootApplication; 

@SpringBootApplication 
public class SpringSchedularApplication { 

    public static void main(String[] args) { 
     SpringApplication.run(SpringSchedularApplication.class, args); 
    } 
} 

我的双响炮:

<?xml version="1.0" encoding="UTF-8"?> 
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 
    <modelVersion>4.0.0</modelVersion> 

    <groupId>com.ashish</groupId> 
    <artifactId>spring-schedular</artifactId> 
    <version>0.0.1-SNAPSHOT</version> 
    <packaging>jar</packaging> 

    <name>spring-schedular</name> 
    <description>Demo project for Spring Boot</description> 

    <parent> 
     <groupId>org.springframework.boot</groupId> 
     <artifactId>spring-boot-starter-parent</artifactId> 
     <version>1.5.9.RELEASE</version> 
     <relativePath/> <!-- lookup parent from repository --> 
    </parent> 

    <properties> 
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> 
     <java.version>1.8</java.version> 
    </properties> 

    <dependencies> 
     <dependency> 
      <groupId>org.springframework.boot</groupId> 
      <artifactId>spring-boot-starter</artifactId> 
     </dependency> 

     <dependency> 
      <groupId>org.springframework.boot</groupId> 
      <artifactId>spring-boot-starter-test</artifactId> 
      <scope>test</scope> 
     </dependency> 
    </dependencies> 

    <build> 
     <plugins> 
      <plugin> 
       <groupId>org.springframework.boot</groupId> 
       <artifactId>spring-boot-maven-plugin</artifactId> 
      </plugin> 
     </plugins> 
    </build> 

    <repositories> 
     <repository> 
      <id>spring-snapshots</id> 
      <name>Spring Snapshots</name> 
      <url>https://repo.spring.io/snapshot</url> 
      <snapshots> 
       <enabled>true</enabled> 
      </snapshots> 
     </repository> 
     <repository> 
      <id>spring-milestones</id> 
      <name>Spring Milestones</name> 
      <url>https://repo.spring.io/milestone</url> 
      <snapshots> 
       <enabled>false</enabled> 
      </snapshots> 
     </repository> 
    </repositories> 

    <pluginRepositories> 
     <pluginRepository> 
      <id>spring-snapshots</id> 
      <name>Spring Snapshots</name> 
      <url>https://repo.spring.io/snapshot</url> 
      <snapshots> 
       <enabled>true</enabled> 
      </snapshots> 
     </pluginRepository> 
     <pluginRepository> 
      <id>spring-milestones</id> 
      <name>Spring Milestones</name> 
      <url>https://repo.spring.io/milestone</url> 
      <snapshots> 
       <enabled>false</enabled> 
      </snapshots> 
     </pluginRepository> 
    </pluginRepositories> 


</project> 

任我调度文件:

import org.slf4j.Logger; 
import org.slf4j.LoggerFactory; 
import org.springframework.scheduling.annotation.Scheduled; 
import org.springframework.stereotype.Component; 

import java.text.DateFormat; 
import java.util.Date; 

import static java.text.DateFormat.LONG; 
import static java.text.DateFormat.getDateInstance; 
import static java.util.Locale.US; 

@Component 
public class ScheduledTask { 
    private static final Logger log = LoggerFactory.getLogger(ScheduledTask.class); 
    private static final DateFormat dateFormat = getDateInstance(LONG, US); 

    @Scheduled(fixedRate = 5000) 
    public void readCurrentTime(){ 
     log.info("The time is now[]", dateFormat.format(new Date())); 
    } 
} 


===========解决方案如下:

虽然春季启动系统能够大量的东西取决于你的依赖关系对于调度和异步不这样做。您仍然需要分别通过添加@EnableScheduling@EnableAsync来手动启用该功能。

在您的情况下,将@EnableScheduling添加到您的应用程序类就足够了。

@SpringBootApplication 
@EnableScheduling 
public class SpringSchedularApplication { 

    public static void main(String[] args) { 
     SpringApplication.run(SpringSchedularApplication.class, args); 
    } 
} 

有了这个调度将被启用,因为有一个调度线程仍在运行应用程序不会关闭。


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