blocks|key|3620484|text|似乎您的类路径中没有任何嵌入式web服务器。尝试通过spring-boot-starter-web依赖项添加Tomcat。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3620485|Maven+pom.xml|BOLD|3620486|<dependency>
++++<groupId>org.springframework.boot</groupId>
++++<artifactId>spring-boot-starter-web</artifactId>
</dependency>|code-block|syntax|javascript|3620487|Gradle+build.gradle|3620488|implementation+'org.springframework.boot:spring-boot-starter-web'|3620489|entityMap^0|Q|N|0|0|5|6|7|0|0|0|6|7|C|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@$9|U|A|V|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|W|8|@$9|X|A|Y|B|H]|$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|I|3|J|5|K|7|11|8|@]|D|@]|E|$L|M]]|$1|N|3|O|5|6|7|12|8|@$9|13|A|14|B|H]|$9|15|A|16|B|C]]|D|@]|E|$]]|$1|P|3|Q|5|K|7|17|8|@]|D|@]|E|$L|M]]|$1|R|3|-4|5|6|7|18|8|@]|D|@]|E|$]]]|S|$]]

It seems you don't have any embedded web servers in your classpath.
Try adding Tomcat through the <code>spring-boot-starter-web</code> dependency.

Maven <code>pom.xml</code>:

<pre><code>&lt;dependency&gt;
 &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
 &lt;artifactId&gt;spring-boot-starter-web&lt;/artifactId&gt;
&lt;/dependency&gt;
</code></pre>

Gradle <code>build.gradle</code>:

<pre><code>implementation 'org.springframework.boot:spring-boot-starter-web'
</code></pre>

blocks|key|1694283|text|我的问题是在pom.xml中没有包括spring-boot-starter-web+artifactId|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1694284|将下面的dependency添加到pom.xml中。|1694285|<dependency>
++++<groupId>org.springframework.boot</groupId>
++++<artifactId>spring-boot-starter-web</artifactId>
</dependency>|code-block|syntax|javascript|1694286|2-右击pom.xml并继续显示图像：|1694287|📷|atomic|1694288|​|1694289|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/7b00147bbc1eb0953d2df3ea88ff9c6a.png|imageAlt^0|I|N|0|4|A|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@$9|13|A|14|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|15|8|@$9|16|A|17|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|18|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|19|8|@]|D|@]|E|$]]|$1|O|3|P|5|Q|7|1A|8|@]|D|@$9|1B|A|1C|1|1D]]|E|$]]|$1|R|3|S|5|6|7|1E|8|@]|D|@]|E|$]]|$1|T|3|-4|5|6|7|1F|8|@]|D|@]|E|$]]]|U|$V|$5|W|X|Y|E|$Z|10|11|-4]]]]

My problem was in pom.xml not included <code>spring-boot-starter-web</code> artifactId

1 - Add new the below <code>dependency</code> to pom.xml .

<pre><code>&lt;dependency&gt;
 &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
 &lt;artifactId&gt;spring-boot-starter-web&lt;/artifactId&gt;
&lt;/dependency&gt;
</code></pre>

2 - Go to pom.xml right click and continue with image : 
<a href="https://i.stack.imgur.com/nYl9b.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/nYl9b.png" alt="enter image description here"></a>

blocks|key|3620649|text|我的问题是通过注释掉这种依赖来解决的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3620650|



|code-block|syntax|javascript|3620651|如果仍然遇到错误，只需注释上面代码中的|3620652|3620653|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|M|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|N|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|O|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|P|8|@]|9|@]|A|$]]]|K|$]]

My issue was fixed by commenting out this dependency:
<pre><code>&lt;!-- &lt;dependency&gt;--&gt;
&lt;!-- &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;--&gt;
&lt;!-- &lt;artifactId&gt;spring-boot-starter-tomcat&lt;/artifactId&gt;--&gt;
&lt;!-- &lt;scope&gt;provided&lt;/scope&gt;--&gt;
&lt;!-- &lt;/dependency&gt;--&gt;
</code></pre>
If still error encountered try just commenting the &lt;scope tag in the code above.

blocks|key|3620618|text|检查您是否有不使用的jpa依赖项，并删除它。还添加了tomcat和spring+starter+web的依赖项。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3620619|删除|3620620|<dependency>
++++++++<groupId>org.springframework.boot</groupId>
++++++++<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>|code-block|syntax|javascript|3620621|添加如果不存在|3620622|<dependency>
++++++++++++<groupId>org.springframework.boot</groupId>
++++++++++++<artifactId>spring-boot-starter-tomcat</artifactId>
++++++++++++<scope>provided</scope>
</dependency>

<dependency>
++++++++++++<groupId>org.springframework.boot</groupId>
++++++++++++<artifactId>spring-boot-starter-web</artifactId>
++++++++++++
++++++++</dependency>|3620623|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Check whether you have jpa dependency you do not use and remove it. Also add dependencies for tomcat and spring-boot-starter-web
Remove
<pre><code>&lt;dependency&gt;
 &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
 &lt;artifactId&gt;spring-boot-starter-data-jpa&lt;/artifactId&gt;
&lt;/dependency&gt;
</code></pre>
add if not does not exist
<pre><code>&lt;dependency&gt;
 &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
 &lt;artifactId&gt;spring-boot-starter-tomcat&lt;/artifactId&gt;
 &lt;scope&gt;provided&lt;/scope&gt;
&lt;/dependency&gt;

&lt;dependency&gt;
 &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
 &lt;artifactId&gt;spring-boot-starter-web&lt;/artifactId&gt;
 
 &lt;/dependency&gt;
</code></pre>

blocks|key|3620631|text|在我的情况下，我正在学习一本关于Kotlin的书，在关于Spring和Kotlin的章节中。我通过使用建立了gradle项目。我能够在IntelliJ+IDEA的gradle选项卡上做一个gradle干净和gradle构建，没有任何问题。然后，我尝试使用在MyApplicationKt中找到的“function+()”顶级函数旁边的“function()”运行该项目。spring启动项目一开始是ok的，但正如最初的海报示例Hikari数据源关闭所发现的，spring启动本身也停止了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3620632|2020-11-10+22:29:46.868++INFO+19536+---+[+++++++++++main]+c.agiledeveloper.todo.TodoApplicationKt++:+Started+TodoApplicationKt+in+2.819+seconds+(JVM+running+for+3.431)

2020-11-10+22:30:47.606++INFO+19536+---+[extShutdownHook]+j.LocalContainerEntityManagerFactoryBean+:+Closing+JPA+EntityManagerFactory+for+persistence+unit+'default'

2020-11-10+22:30:47.607++INFO+19536+---+[extShutdownHook]+.SchemaDropperImpl$DelayedDropActionImpl+:+HHH000477:+Starting+delayed+evictData+of+schema+as+part+of+SessionFactory+shut-down'

2020-11-10+22:30:47.610++INFO+19536+---+[extShutdownHook]+o.s.s.concurrent.ThreadPoolTaskExecutor++:+Shutting+down+ExecutorService+'applicationTaskExecutor'

2020-11-10+22:30:47.610++INFO+19536+---+[extShutdownHook]+com.zaxxer.hikari.HikariDataSource+++++++:+HikariPool-1+-+Shutdown+initiated...

2020-11-10+22:30:47.615++INFO+19536+---+[extShutdownHook]+com.zaxxer.hikari.HikariDataSource+++++++:+HikariPool-1+-+Shutdown+completed.|code-block|syntax|javascript|3620633|问题是，我对Gradle还是新手，解决方法是避免上面提到的问题，而是转到Gradle选项卡>+Tasks+>+application+>+bootRun，这样可以在避免关闭的同时运行应用程序。然后，我可以使用我正在使用的curl命令访问正在运行的项目的RESTful+web服务。|3620634|作为参考，为什么curl命令不针对我的spring项目：Curl+:+connection+refused|offset|length|3620635|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/41027340/curl-connection-refused^0|0|0|0|S|P|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|W|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|X|8|@]|9|@$K|Y|L|Z|1|10]]|A|$]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]]]

In my situation, I was studying a book on Kotlin, in the chapter about using Spring with Kotlin. I had the gradle project set up from using Spring Initializr. I was able to do a gradle clean and gradle build from the gradle tab in IntelliJ IDEA ide, with no problems. I then tried to run the project using the &quot;run MyApplicationKt&quot; found next to the &quot;fun main()&quot; top-level function found in MyApplication.kt. The spring boot project started ok at first, but as found in the original poster's example the Hikari Data Source shutdown, and the spring boot itself stopped.
<pre><code>2020-11-10 22:29:46.868 INFO 19536 --- [ main] c.agiledeveloper.todo.TodoApplicationKt : Started TodoApplicationKt in 2.819 seconds (JVM running for 3.431)

2020-11-10 22:30:47.606 INFO 19536 --- [extShutdownHook] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'

2020-11-10 22:30:47.607 INFO 19536 --- [extShutdownHook] .SchemaDropperImpl$DelayedDropActionImpl : HHH000477: Starting delayed evictData of schema as part of SessionFactory shut-down'

2020-11-10 22:30:47.610 INFO 19536 --- [extShutdownHook] o.s.s.concurrent.ThreadPoolTaskExecutor : Shutting down ExecutorService 'applicationTaskExecutor'

2020-11-10 22:30:47.610 INFO 19536 --- [extShutdownHook] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...

2020-11-10 22:30:47.615 INFO 19536 --- [extShutdownHook] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.
</code></pre>
The problem was that I am new to Gradle, and the fix was to avoid above, and instead to go to Gradle tab &gt; Tasks &gt; application &gt; bootRun, and this runs the app while avoiding shutdown. I was then able to access my RESTful web service running project using a curl command I was using.
For reference, why curl command was not working against my spring gradle REST project: <a href="https://stackoverflow.com/questions/41027340/curl-connection-refused">Curl : connection refused</a>

blocks|key|1694344|text|检查您的<dependency>+<groupId>org.springframework.boot</groupId>+<artifactId>spring-boot-starter-tomcat</artifactId>+</dependency>是否在您的pom.xml中，删除它|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1694345|entityMap^0|4|3E|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

Check if you have <code>&lt;dependency&gt; &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt; &lt;artifactId&gt;spring-boot-starter-tomcat&lt;/artifactId&gt; &lt;/dependency&gt;</code>
in your pom.xml, remove it

blocks|key|3620683|text|我移除|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3620684|<dependency>
++++<groupId>org.springframework.boot</groupId>
++++<artifactId>spring-boot-starter-tomcat</artifactId>
++++<scope>provided</scope>
</dependency>|code-block|syntax|javascript|3620685|而且起作用了|3620686|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I remove
<pre><code>&lt;dependency&gt;
 &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
 &lt;artifactId&gt;spring-boot-starter-tomcat&lt;/artifactId&gt;
 &lt;scope&gt;provided&lt;/scope&gt;
&lt;/dependency&gt;

</code></pre>
and it works

ERROR:

<pre><code>2018-11-12 18:25:31.221 INFO 3028 --- [ Thread-3] 
com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...

2018-11-12 18:25:31.223 INFO 3028 --- [ Thread-3] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.
</code></pre>

Why does this error occur?

And how can I solve?

Spring boot "Hikari Pool Shutdown" early error

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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错误：2018-11-12 18:25:31.221  INFO 3028 --- [       Thread-3] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Shutdown initiated...2018-11-12 18:25:31.223  INFO 3028 --- [       Thread-3] com.

问弹簧引导"Hikari池关闭“早期错误
EN

回答 7

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