无法启动Tomcat的嵌入式春季启动

我工作的弹簧引导摇篮应用。当我尝试通过执行booRun运行它作为战争时，我的应用程序发生错误。该错误说：无法启动嵌入式tomcat。的build.gradle文件的内容：无法启动Tomcat的嵌入式春季启动

org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat 
    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:536) ~[spring-context-4.3.8.RELEASE.jar:4.3.8.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.ex.MainClass.main(MainClass.java:38) [main/:na] 
Caused by: org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat 
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:123) ~[spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE] 
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:84) ~[spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE] 
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:554) ~[spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE] 
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:179) ~[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] 
    ... 8 common frames omitted 
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardServer[-1]] 
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) ~[tomcat-embed-core-8.5.14.jar:8.5.14] 
    at org.apache.catalina.startup.Tomcat.start(Tomcat.java:344) ~[tomcat-embed-core-8.5.14.jar:8.5.14] 
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:99) ~[spring-boot-1.5.3.RELEASE.jar:1.5.3.RELEASE] 
    ... 13 common frames omitted 
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardService[Tomcat]] 
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) ~[tomcat-embed-core-8.5.14.jar:8.5.14] 
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:793) ~[tomcat-embed-core-8.5.14.jar:8.5.14] 
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ~[tomcat-embed-core-8.5.14.jar:8.5.14] 
    ... 15 common frames omitted 
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat]] 
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167) ~[tomcat-embed-core-8.5.14.jar:8.5.14] 
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422) ~[tomcat-embed-core-8.5.14.jar:8.5.14] 
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ~[tomcat-embed-core-8.5.14.jar:8.5.14] 
    ... 17 common frames omitted 
Caused by: org.apache.catalina.LifecycleException: A child container failed during start 
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:947) ~[tomcat-embed-core-8.5.14.jar:8.5.14] 
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) ~[tomcat-embed-core-8.5.14.jar:8.5.14] 
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ~[tomcat-embed-core-8.5.14.jar:8.5.14] 
    ... 19 common frames omitted 

bootRun FAILED

编辑：添加主类的定义：

group 'com.example' 
    version '1.0-SNAPSHOT' 



bootRepackage { 
    mainClass = 'com.ex.MainClass' 
} 


apply plugin: 'war' 
apply plugin: 'propdeps' 

war { 
    baseName = 'abc' 
    archiveName 'abc.war' 

} 

repositories{ 
// mavenLocal() 
    mavenCentral() 
} 


dependencies { 

     compile("org.springframework.boot:spring-boot-starter-web") 
     compile("org.springframework.boot:spring-boot-starter-data-jpa") 
     compile("io.springfox:springfox-swagger2:2.7.0") 
     compile("io.springfox:springfox-swagger-ui:2.7.0") 
     compile fileTree(dir:"lib", include:"*.jar") 
     compile('org.springframework.boot:spring-boot-starter-mail') 
     optional("org.springframework.boot:spring-boot-configuration-processor") 
     compile("org.springframework.boot:spring-boot-starter-tomcat") 
     compile "io.springfox:springfox-swagger2:2.7.0" 
     compile 'io.springfox:springfox-swagger-ui:2.7.0' 
     compile("org.springframework.boot:spring-boot-starter-amqp") 
    } 

    compileJava.dependsOn(processResources)

整个堆栈跟踪如下

@SpringBootApplication 
@EnableAsync 
@EnableCaching 
@EnableScheduling 
public class MainClass extends SpringBootServletInitializer { 

    public static final Logger logger = LoggerFactory.getLogger(MainClass.class); 

    @Override 
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) { 
     return application.sources(MainClass.class); 
    } 

    public static void main(String[] args) { 
     SpringApplication.run(MainClass.class, args); 

    } 
}

可有人告诉我为什么我的应用程序无法在嵌入式tomcat上启动？

谢谢

来源

2017-10-12 Manisha

你好你能粘贴MainClass以及 – Pradeep

'编译文件树（导演：“LIB”，包括：“*罐子”）'这是什么一部分？ – 11thdimension

@ 11thdimension在lib dir中有一些外部jar文件，我需要将其包含在我的项目中。因此，依赖 – Manisha

我无法评论。所以如果你使用的是嵌入式tomcat，你不需要Tomcat依赖（spring-boot-starter-tomcat），因为它已经内置了“spring-boot-starter-web”。尝试删除此依赖项。

来源

2017-10-12 16:53:51 Neero

我有同样的问题，通过港口的改变解决了这个问题。

当我运行应用程序作为Spring应用程序中，我通常使用的端口9000和9001进行管理，但是当我试图在Tomcat运行它，它与您发布的同一异常失败。将application.properties中的两个端口更改为8080解决了这个问题。

来源

2017-11-02 11:18:10 MaXi

无法启动Tomcat的嵌入式春季启动

回答

相关问题