ERROR 14764 --- [           main] o.apache.catalina.core.StandardService   : Failed to start connector [Connector[HTTP/1.1-9001]]

org.apache.catalina.LifecycleException: Failed to start component [Connector[HTTP/1.1-9001]]

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) ~[tomcat-embed-core-8.5.34.jar:8.5.34]

at org.apache.catalina.core.StandardService.addConnector(StandardService.java:225) ~[tomcat-embed-core-8.5.34.jar:8.5.34]

at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.addPreviouslyRemovedConnectors(TomcatWebServer.java:261) [spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]

at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.start(TomcatWebServer.java:198) [spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]

at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.startWebServer(ServletWebServerApplicationContext.java:300) [spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]

at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.finishRefresh(ServletWebServerApplicationContext.java:162) [spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551) [spring-context-5.0.10.RELEASE.jar:5.0.10.RELEASE]

at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) [spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]

at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754) [spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]

at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:386) [spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) [spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:1242) [spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:1230) [spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]

at com.daqin.demo251001.Demo251001Application.main(Demo251001Application.java:12) [classes/:na]

Caused by: org.apache.catalina.LifecycleException: Protocol handler start failed

at org.apache.catalina.connector.Connector.startInternal(Connector.java:1020) ~[tomcat-embed-core-8.5.34.jar:8.5.34]

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ~[tomcat-embed-core-8.5.34.jar:8.5.34]

... 13 common frames omitted

Caused by: java.net.BindException: Address already in use: bind

at sun.nio.ch.Net.bind0(Native Method) ~[na:1.8.0_411]

at sun.nio.ch.Net.bind(Net.java:438) ~[na:1.8.0_411]

at sun.nio.ch.Net.bind(Net.java:430) ~[na:1.8.0_411]

at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:225) ~[na:1.8.0_411]

at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) ~[na:1.8.0_411]

at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:219) ~[tomcat-embed-core-8.5.34.jar:8.5.34]

at org.apache.tomcat.util.net.AbstractEndpoint.start(AbstractEndpoint.java:1151) ~[tomcat-embed-core-8.5.34.jar:8.5.34]

at org.apache.coyote.AbstractProtocol.start(AbstractProtocol.java:591) ~[tomcat-embed-core-8.5.34.jar:8.5.34]

at org.apache.catalina.connector.Connector.startInternal(Connector.java:1018) ~[tomcat-embed-core-8.5.34.jar:8.5.34]

... 14 common frames omitted

2025-10-02 18:31:35.411  INFO 14764 --- [           main] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]

2025-10-02 18:31:35.417  INFO 14764 --- [           main] ConditionEvaluationReportLoggingListener :

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.

2025-10-02 18:31:35.419 ERROR 14764 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   :

***************************

APPLICATION FAILED TO START

***************************

Description:

The Tomcat connector configured to listen on port 9001 failed to start. The port may already be in use or the connector may be misconfigured.

Action:

Verify the connector's configuration, identify and stop any process that's listening on port 9001, or configure this application to listen on another port.

根据错误日志分析,这是端口占用问题。以下是解决方案:

## 错误分析

- **根本原因**:端口 `9001` 已被其他进程占用

- **错误信息**:`java.net.BindException: Address already in use: bind`

## 解决方案

### 1. 更换端口(推荐)

修改 [application.yml](file://D:\SUM\代码\demo251001\src\main\resources\application.yml) 文件中的端口配置:

```yaml

server:

  port: 9002  # 或其他未被占用的端口

```

### 2. 查找并终止占用端口的进程

在命令行中执行以下命令:

**Windows系统:**

```bash

# 查找占用9001端口的进程

netstat -ano | findstr :9001

# 根据PID终止进程

taskkill /PID <进程ID> /F

```

**Linux/Mac系统:**

```bash

# 查找占用9001端口的进程

lsof -i :9001

# 或者

netstat -tulpn | grep :9001

# 终止进程

kill -9 <进程ID>

```

### 3. 重启应用

完成上述操作后重新启动 [Demo251001Application](file://D:\SUM\代码\demo251001\src\main\java\com\daqin\demo251001\Demo251001Application.java#L6-L14) 应用。

**建议优先采用方案1**,简单快捷且不会影响其他正在运行的服务。

Logo

码道开发者社区,聚焦华为云码道 CodeArts 代码智能体,沉淀 Agent、Skill、鸿蒙开发实战内容,供开发者查阅资料、交流技术、分享工程实践

更多推荐