我正在学习弹簧启动执行器，请注意，弹簧启动执行器未启动。我正在阅读文档[spring docs] [1]，因此，请按照上述方式添加maven依赖项。
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
</dependencies>
我的POM.xml：
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.6.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>net.javapedia</groupId>
<artifactId>spring-scheduling</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>spring-scheduling</name>
<description>Spring scheduling example</description>
<properties>
<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>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
我的Spring应用程序：
package net.javapedia.springscheduling;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableScheduling;
@SpringBootApplication
@EnableScheduling
public class SpringSchedulingApplication {
public static void main(String[] args) {
SpringApplication.run(SpringSchedulingApplication.class, args);
}
}
application.properties
management.endpoints.enabled-by-default=true
控制台输出：
2020-03-28 22:05:31.184 INFO 63611 --- [ main] n.j.s.SpringSchedulingApplication : Starting SpringSchedulingApplication on localhost with PID 63611 (/Users/admin/IdeaProjects/spring-scheduling/target/classes started by admin in /Users/admin/IdeaProjects/spring-scheduling)
2020-03-28 22:05:31.189 INFO 63611 --- [ main] n.j.s.SpringSchedulingApplication : No active profile set, falling back to default profiles: default
2020-03-28 22:05:33.279 INFO 63611 --- [ main] o.s.s.c.ThreadPoolTaskScheduler : Initializing ExecutorService 'taskScheduler'
Running fixedRate Task, Thread name: scheduling-1
Running scheduled Task, iteration :1 Thread name: scheduling-1
2020-03-28 22:05:33.342 INFO 63611 --- [ main] n.j.s.SpringSchedulingApplication : Started SpringSchedulingApplication in 2.791 seconds (JVM running for 4.108)
我正在尝试访问位于http://localhost:8080/actuator/health的执行器运行状况端点，但是没有运气。
[1]: http://%20https://docs.spring.io/spring-boot/docs/current/reference/html/production-ready-features.html#production-ready-enabling
答案 0 :(得分：1)
请在您的pom.xml中添加以下内容：
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
我已经复制了您的设置，但最初确实没有用。但是在我添加了spring-boot-starter-web之后，结果就解决了。似乎必须具有web依赖性才能启动任何控制器，不仅是特定于应用程序的控制器，甚至是actuator的控制器。
应用日志：
2020-03-29 10:27:36.934 INFO 29814 --- [ main] com.example.SpringSchedulingApplication : Starting SpringSchedulingApplication on Users-MacBook-Pro-4.local with PID 29814 (/Users/user/projects/test/target/classes started by user in /Users/user/projects/test)
2020-03-29 10:27:36.936 INFO 29814 --- [ main] com.example.SpringSchedulingApplication : No active profile set, falling back to default profiles: default
2020-03-29 10:27:37.623 INFO 29814 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (HTTP)
2020-03-29 10:27:37.628 INFO 29814 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2020-03-29 10:27:37.628 INFO 29814 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.33]
2020-03-29 10:27:37.677 INFO 29814 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2020-03-29 10:27:37.677 INFO 29814 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 715 ms
2020-03-29 10:27:37.890 INFO 29814 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2020-03-29 10:27:38.012 INFO 29814 --- [ main] o.s.s.c.ThreadPoolTaskScheduler : Initializing ExecutorService 'taskScheduler'
2020-03-29 10:27:38.015 INFO 29814 --- [ main] o.s.b.a.e.web.EndpointLinksResolver : Exposing 2 endpoint(s) beneath base path '/actuator'
2020-03-29 10:27:38.056 INFO 29814 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
2020-03-29 10:27:38.058 INFO 29814 --- [ main] com.example.SpringSchedulingApplication : Started SpringSchedulingApplication in 1.283 seconds (JVM running for 1.797)
2020-03-29 10:27:38.413 INFO 29814 --- [on(1)-127.0.0.1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring DispatcherServlet 'dispatcherServlet'
2020-03-29 10:27:38.413 INFO 29814 --- [on(1)-127.0.0.1] o.s.web.servlet.DispatcherServlet : Initializing Servlet 'dispatcherServlet'
2020-03-29 10:27:38.418 INFO 29814 --- [on(1)-127.0.0.1] o.s.web.servlet.DispatcherServlet : Completed initialization in 5 ms