Springboot项目编译正常启动Unable to start embedded container报错

本文详细解析SpringBoot项目启动时报错Unable to start embedded container的原因及解决办法,涉及Tomcat依赖冲突与pom.xml配置问题,为开发者提供实用的故障排查与修复指导。

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Springboot项目编译正常启动Unable to start embedded container报错

错误如下:


org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is java.lang.IllegalStateException: Expected method not found: java.lang.NoSuchMethodException: org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedContext.addApplicationListener(org.apache.catalina.deploy.ApplicationListener)
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:137) [spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:531) ~[spring-context-4.2.0.RELEASE.jar:4.2.0.RELEASE]
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) [spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:737) [spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:370) [spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:314) [spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162) [spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151) [spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE]
	at com.github.DocumentService.DocumentServiceApplication.main(DocumentServiceApplication.java:17) [classes/:na]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_201]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_201]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_201]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_201]
	at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-1.5.3.RELEASE.jar:1.5.3.RELEASE]
Caused by: java.lang.IllegalStateException: Expected method not found: java.lang.NoSuchMethodException: org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedContext.addApplicationListener(org.apache.catalina.deploy.ApplicationListener)
	at org.springframework.util.ClassUtils.getMethod(ClassUtils.java:641) ~[spring-core-4.3.8.RELEASE.jar:4.3.8.RELEASE]
	at org.springframework.boot.autoconfigure.websocket.TomcatWebSocketContainerCustomizer.addListener(TomcatWebSocketContainerCustomizer.java:86) ~[spring-boot-autoconfigure-1.5.3.RELEASE.jar:1.5.3.RELEASE]
	at org.springframework.boot.autoconfigure.websocket.TomcatWebSocketContainerCustomizer.access$100(TomcatWebSocketContainerCustomizer.java:37) ~[spring-boot-autoconfigure-1.5.3.RELEASE.jar:1.5.3.RELEASE]
	at org.springframework.boot.autoconfigure.websocket.TomcatWebSocketContainerCustomizer$1.customize(TomcatWebSocketContainerCustomizer.java:51) ~[spring-boot-autoconfigure-1.5.3.RELEASE.jar:1.5.3.RELEASE]
	at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.configureContext(TomcatEmbeddedServletContainerFactory.java:498) ~[spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE]
	at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.prepareContext(TomcatEmbeddedServletContainerFactory.java:234) ~[spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE]
	at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:178) ~[spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE]
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:164) [spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE]
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:134) [spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE]
	... 13 common frames omitted

今天使用springboot APP方式启动springboot项目orup、documentservice报错,我的eclipse是指定了Runtime Environment的,启动springboot项目时,两个项目报这个错发现是各自不同的原因:
1.orup 项目的build Path包含有其他的Tomcat依赖,remove掉就好了
2. documentservice项目的pom.xml中依赖的问题

<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
			<!-- 移除嵌入式tomcat插件  -->
			<!-- <exclusions>
				<exclusion>
					<groupId>org.springframework.boot</groupId>
					<artifactId>spring-boot-starter-tomcat</artifactId>
				</exclusion>
			</exclusions> -->
		</dependency>
		 <!-- <dependency>
			<groupId>org.apache.tomcat</groupId>
			<artifactId>tomcat-servlet-api</artifactId>
			<version>8.0.36</version>
			<scope>provided</scope>
		</dependency> --> 

documentservice的pom.xml一开始是这样的,打开注释后就可以正常运行了

参考:
https://www.jianshu.com/p/feac4f5105ed

这个错误通常是由于SpringBoot应用程序无法启动嵌入式容器引起的。可能的原因是应用程序缺少嵌入式容器依赖项或者bean搜索路径不正确。以下是一些可能的解决方案: 1. 确保应用程序中包含嵌入式容器的依赖项,例如Tomcat或Jetty。可以在pom.xml文件中添加以下依赖项: ```xml <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> </dependency> ``` 2. 确保应用程序的bean搜索路径正确。默认情况下,SpringBoot约定的bean搜索路径是从@SrpingBootApplication所在的包开始的。如果应用程序的其他包不在这个包之下,就需要在应用程序的主类上添加@ComponentScan注解,以指定bean搜索路径。例如: ```java @SpringBootApplication @ComponentScan(basePackages = {"com.example.app", "com.example.controller"}) public class MyApp { public static void main(String[] args) { SpringApplication.run(MyApp.class, args); } } ``` 3. 如果应用程序中包含多个嵌入式容器依赖项,可能需要在pom.xml文件中排除其中一个。例如,如果应用程序同时包含Tomcat和Jetty依赖项,可以使用以下代码排除其中一个: ```xml <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> <exclusions> <exclusion> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jetty</artifactId> </exclusion> </exclusions> </dependency> ```
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