网站备案做优惠券,自己的网站怎么赚钱,ui设计技术培训培训班,网站建设价位更改Spring Boot应用程序端口的快速指南。 application.properties文件和yml文件中的server.port属性的示例。 以及从命令行参数 SpringBootApplication#xff0c;WebServerFactoryCustomizer 1.简介 在本教程中#xff0c;您将学习如何在Spring Boot应用程序中更改端口。 … 更改Spring Boot应用程序端口的快速指南。 application.properties文件和yml文件中的server.port属性的示例。 以及从命令行参数 SpringBootApplicationWebServerFactoryCustomizer 1.简介 在本教程中您将学习如何在Spring Boot应用程序中更改端口。 默认情况下Spring Boot会执行许多自动配置并提供了根据需要进行自定义的方法。 最常见的用例是将应用程序端口更改为新端口。 因为默认情况下 嵌入式tomcat配置有8080端口。 如果您已经在同一端口上运行了另一个服务则无法在该端口上启动新服务。 因此您必须在其他端口上运行该应用程序。 可以通过许多可能的方式更改端口。 让我们看一看实用示例程序。 2.通过使用属性和YML文件更改端口 我刚刚创建了一个新的Spring Boot应用程序并在端口8080上的默认tomcat服务器上启动。 application.properties 这是来自日志的消息内容为“ Tomcat在端口8080上启动”。 2020-05-06 20:16:17.003 INFO 19737 --- [ main] jsSSpringBootCofigurationsApplication : Starting SpringBootCofigurationsApplication on -MacBook-Pro-2.local with PID 19737 2020-05-06 20:16:17.006 INFO 19737 --- [ main] jsSSpringBootCofigurationsApplication : No active profile set, falling back to default profiles: default 2020-05-06 20:16:17.921 INFO 19737 --- [ main] osbwembedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http) 2020-05-06 20:16:17.932 INFO 19737 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat] 2020-05-06 20:16:17.933 INFO 19737 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.33] 2020-05-06 20:16:18.044 INFO 19737 --- [ main] oaccC[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext 2020-05-06 20:16:18.044 INFO 19737 --- [ main] osweb.context.ContextLoader : Root WebApplicationContext: initialization completed in 999 ms 2020-05-06 20:16:18.222 INFO 19737 --- [ main] ossconcurrent.ThreadPoolTaskExecutor : Initializing ExecutorService applicationTaskExecutor 2020-05-06 20:16:18.387 INFO 19737 --- [ main] osbwembedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path 2020-05-06 20:16:18.391 INFO 19737 --- [ main] jsSSpringBootCofigurationsApplication : Started SpringBootCofigurationsApplication in 1.689 seconds (JVM running for 2.651) 现在要更改端口只需在application.properties文件中添加一个属性如下所示。 [server.port 9000] 上面的属性server.port会将tomcat端口更改为9000。属性文件将位于resources文件夹下。 添加后您需要重新启动应用程序以使配置更改生效。 从应用程序控制台仅显示最后几行。 现在默认端口8080更改为9000 2020-05-06 202005.358信息初始化ExecutorServiceapplicationTaskExecutor 2020-05-06 202005.500信息Tomcat在具有上下文路径“”的端口9000 http上启动 2020-05-06 202005.504信息在1.369秒内启动了SpringBootCofigurationsApplicationJVM运行2.007 application.yml 除了application.properties文件之外还有一个其他文件该文件将由spring boot自动在src / main / resources文件夹下进行扫描。 application: name: spring-boot-configurations server: port: 9006 但是如果两个文件中都存在端口属性则application.properties文件端口将被认为具有最高优先级。 3. Spring Boot中的特定于环境的端口 与application.properties类似对于每个环境例如devsitQA和prod您可以具有不同的属性文件。 application-dev.properties server.port 9008 application-qa.properties server.port 8008 这些文件对于在多个环境中部署应用程序而对每次更改或部署都没有任何更改最有用。 4.以编程方式更改端口 如果您无权访问属性文件则可以使用SpringBootApplication批注类或自定义嵌入式tomcat服务器设置来实现 。 4.1 SpringBootApplication类级别 使用相同的属性“ server.port”设置自定义端口。 下面的程序设置为9009。 package com.javaprogramto.springboot.SpringBootCofigurations; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import java.util.HashMap; import java.util.Map; SpringBootApplication public class SpringBootCofigurationsApplication { public static void main(String[] args) { // SpringApplication.run(SpringBootCofigurationsApplication.class, args); SpringApplication app new SpringApplication(SpringBootCofigurationsApplication. class ); MapString, Object customConfig new HashMap(); customConfig.put( server.port , 9009 ); app.setDefaultProperties(customConfig); app.run(args); } } 4.2使用WebServerFactoryCustomizer界面 使用Interface WebServerFactoryCustomizer ConfigurableWebServerFactory实现任何类并实现customset方法以使用setPort方法设置端口。 package com.javaprogramto.springboot.SpringBootCofigurations; import org.springframework.boot.web.server.ConfigurableWebServerFactory; import org.springframework.boot.web.server.WebServerFactoryCustomizer; import org.springframework.stereotype.Component; Componentpublic class CustomEmbededPortChange implements WebServerFactoryCustomizerConfigurableWebServerFactory { Override public void customize(ConfigurableWebServerFactory factory) { factory.setPort(8086); } } 如果收到此错误请确保没有两次调用SpringApplication.run。 ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name defined in class path resource [org/springframework/boot/autoconfigure/admin/SpringApplicationAdminJmxAutoConfiguration. defined in ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name springApplicationAdminRegistrar ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name path resource [org/springframework/boot/autoconfigure/admin/SpringApplicationAdminJmxAutoConfiguration. class ]: Invocation of init method failed; nested exception is javax.management.InstanceAlreadyExistsException: org.springframework.boot:typeAdmin,nameSpringApplication ]: Invocation of init method failed; nested exception is javax.management.InstanceAlreadyExistsException: org.springframework.boot:typeAdmin,nameSpringApplication 2020-05-06 21:26:09.907 INFO 21555 --- [ main] ossconcurrent.ThreadPoolTaskExecutor : Shutting down ExecutorService applicationTaskExecutor 2020-05-06 21:26:09.908 INFO 21555 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat] 2020-05-06 21:26:09.915 INFO 21555 --- [ main] ConditionEvaluationReportLoggingListener : Error starting ApplicationContext. To display the conditions report re-run your application with Error starting ApplicationContext. To display the conditions report re-run your application with enabled. debug Error starting ApplicationContext. To display the conditions report re-run your application with enabled. 2020-05-06 21:26:09.923 ERROR 21555 --- [ main] osboot.SpringApplication : Application run failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name class path resource [org/springframework/boot/autoconfigure/admin/SpringApplicationAdminJmxAutoConfiguration. defined in org.springframework.beans.factory.BeanCreationException: Error creating bean with name springApplicationAdminRegistrar org.springframework.beans.factory.BeanCreationException: Error creating bean with name path resource [org/springframework/boot/autoconfigure/admin/SpringApplicationAdminJmxAutoConfiguration. class ]: Invocation of init method failed; nested exception is javax.management.InstanceAlreadyExistsException: org.springframework.boot:typeAdmin,nameSpringApplication ]: Invocation of init method failed; nested exception is javax.management.InstanceAlreadyExistsException: org.springframework.boot:typeAdmin,nameSpringApplication at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1796) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:595) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:882) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) ~[spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE] at com.javaprogramto.springboot.SpringBootCofigurations.SpringBootCofigurationsApplication.main(SpringBootCofigurationsApplication.java:24) ~[classes/:na] Caused by: javax.management.InstanceAlreadyExistsException: org.springframework.boot:typeAdmin,nameSpringApplication at java.management/com.sun.jmx.mbeanserver.Repository.addMBean(Repository.java:436) ~[na:na] at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerWithRepository(DefaultMBeanServerInterceptor.java:1855) ~[na:na] at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerDynamicMBean(DefaultMBeanServerInterceptor.java:955) ~[na:na] at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerObject(DefaultMBeanServerInterceptor.java:890) ~[na:na] at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:320) ~[na:na] at java.management/com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:522) ~[na:na] at org.springframework.boot.admin.SpringApplicationAdminMXBeanRegistrar.afterPropertiesSet(SpringApplicationAdminMXBeanRegistrar.java:129) ~[spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1855) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1792) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE] ... 14 common frames omitted 5.使用命令行参数 如果您不是开发人员则只进行部署。 如果要独立启动应用程序则可以通过指定–serverport标志如下运行java -jar命令。 java -jar Spring-Boot-Cofigurations-0.0.1-SNAPSHOT.jar --server.port9099 或者您可以将其用作eclipse或Intelleji或任何IDE的VM参数。 java -jar -Dserver.port9099 Spring-Boot-Cofigurations-0.0.1-SNAPSHOT.jar6.评估顺序优先级 如果您在不知不觉中以多种方式进行配置则应非常小心因为它可能在不同的端口上运行并且也很难发现。 这是从高优先级到低优先级的列表。 嵌入式服务器配置– WebServerFactoryCustomizer接口 命令行参数 属性文件 SpringBootApplication主要配置 7结论 在本文中您已经了解了从Spring Boot应用程序中的默认端口将端口更改为自定义端口的方法。 在仓库中所有配置均已注释。 请为您取消注释所需的一个。 本文显示的所有代码都在GitHub上。 您可以直接下载该项目并且可以在本地运行而没有任何错误。 在GitHub上查看 下载 如果您有任何疑问请在评论部分中发布。 翻译自: https://www.javacodegeeks.com/2020/05/spring-boot-port-change-to-custom-or-new-port-from-default.html
