Spring Tomcat mvc api错误

Question

我对api和servlets有点陌生，一直在开发一个servlet来充当MySQL数据库的api，过了一段时间后，我意识到我正在制作的maven项目不是作为war文件编译的，为了使它作为war文件编译，我添加了以下行

appilcation.java

@SpringBootApplication
public class Application extends SpringBootServletInitializer {

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

public static void main(String[] args) throws Exception {
    SpringApplication.run(Application.class, args);
}

}

 
Using CATALINA_BASE:   "C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33"
Using CATALINA_HOME:   "C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33"
Using CATALINA_TMPDIR: "C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\temp"
Using JRE_HOME:        "C:\Program Files\Java\jdk1.8.0_73"
Using CLASSPATH:       "C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\bin\bootstrap.jar;C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\bin\tomcat-juli.jar"
28-Apr-2016 16:23:34.997 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version:        Apache Tomcat/8.0.33
28-Apr-2016 16:23:35.000 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server built:          Mar 18 2016 20:31:49 UTC
28-Apr-2016 16:23:35.001 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server number:         8.0.33.0
28-Apr-2016 16:23:35.001 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name:               Windows 10
28-Apr-2016 16:23:35.002 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Version:            10.0
28-Apr-2016 16:23:35.002 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Architecture:          amd64
28-Apr-2016 16:23:35.002 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Java Home:             C:\Program Files\Java\jdk1.8.0_73\jre
28-Apr-2016 16:23:35.002 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Version:           1.8.0_73-b02
28-Apr-2016 16:23:35.003 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Vendor:            Oracle Corporation
28-Apr-2016 16:23:35.003 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE:         C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33
28-Apr-2016 16:23:35.003 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME:         C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33
28-Apr-2016 16:23:35.004 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dhttp.nonProxyHosts=localhost|127.0.0.1|DESKTOP-LFKQO6C
28-Apr-2016 16:23:35.004 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.config.file=C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\conf\logging.properties
28-Apr-2016 16:23:35.004 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
28-Apr-2016 16:23:35.005 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.endorsed.dirs=C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\endorsed
28-Apr-2016 16:23:35.005 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.base=C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33
28-Apr-2016 16:23:35.005 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.home=C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33
28-Apr-2016 16:23:35.006 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.io.tmpdir=C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\temp
28-Apr-2016 16:23:35.006 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent Loaded APR based Apache Tomcat Native library 1.2.5 using APR version 1.5.1.
28-Apr-2016 16:23:35.007 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].
28-Apr-2016 16:23:36.053 INFO [main] org.apache.catalina.core.AprLifecycleListener.initializeSSL OpenSSL successfully initialized (OpenSSL 1.0.2g  1 Mar 2016)
28-Apr-2016 16:23:36.294 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["http-apr-8080"]
28-Apr-2016 16:23:36.311 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["ajp-apr-8009"]
28-Apr-2016 16:23:36.313 INFO [main] org.apache.catalina.startup.Catalina.load Initialization processed in 2299 ms
28-Apr-2016 16:23:36.367 INFO [main] org.apache.catalina.core.StandardService.startInternal Starting service Catalina
28-Apr-2016 16:23:36.368 INFO [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet Engine: Apache Tomcat/8.0.33
28-Apr-2016 16:23:36.383 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDescriptor Deploying configuration descriptor C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\conf\Catalina\localhost\mavenproject1.xml
28-Apr-2016 16:23:36.530 SEVERE [localhost-startStop-1] org.apache.catalina.core.ContainerBase.addChildInternal ContainerBase.addChild: start: 
 org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/mavenproject1]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:153)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:587)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1798)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [org.apache.catalina.webresources.StandardRoot@47ebf2f8]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:153)
    at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4927)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5057)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    ... 10 more
Caused by: java.lang.IllegalArgumentException: The main resource set specified [C:\Users\systo\Documents\NetBeansProjects\mavenproject1\target\mavenproject1-1.0-SNAPSHOT] is not valid
    at org.apache.catalina.webresources.StandardRoot.createMainResourceSet(StandardRoot.java:723)
    at org.apache.catalina.webresources.StandardRoot.startInternal(StandardRoot.java:684)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    ... 13 more

28-Apr-2016 16:23:36.533 SEVERE [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDescriptor Error deploying configuration descriptor C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\conf\Catalina\localhost\mavenproject1.xml
 java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/mavenproject1]]
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:729)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:587)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1798)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

28-Apr-2016 16:23:36.537 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDescriptor Deployment of configuration descriptor C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\conf\Catalina\localhost\mavenproject1.xml has finished in 152 ms
28-Apr-2016 16:23:36.537 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDescriptor Deploying configuration descriptor C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\conf\Catalina\localhost\ROOT.xml
28-Apr-2016 16:23:39.327 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v1.3.3.RELEASE)

28-Apr-2016 16:23:43.879 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDescriptor Deployment of configuration descriptor C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\conf\Catalina\localhost\ROOT.xml has finished in 7,341 ms
28-Apr-2016 16:23:43.879 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDescriptor Deploying configuration descriptor C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\conf\Catalina\localhost\Spring4MVCCRUDRestService.xml
28-Apr-2016 16:23:45.444 SEVERE [localhost-startStop-1] org.apache.catalina.core.ContainerBase.addChildInternal ContainerBase.addChild: start: 
 org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/Spring4MVCCRUDRestService]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:153)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:587)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1798)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalArgumentException: Failed to register servlet with name 'dispatcher'.Check if there is another servlet registered under the same name.
    at org.springframework.util.Assert.notNull(Assert.java:115)
    at org.springframework.web.servlet.support.AbstractDispatcherServletInitializer.registerDispatcherServlet(AbstractDispatcherServletInitializer.java:97)
    at org.springframework.web.servlet.support.AbstractDispatcherServletInitializer.onStartup(AbstractDispatcherServletInitializer.java:70)
    at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:175)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5240)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    ... 10 more

28-Apr-2016 16:23:45.445 SEVERE [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDescriptor Error deploying configuration descriptor C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\conf\Catalina\localhost\Spring4MVCCRUDRestService.xml
 java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/Spring4MVCCRUDRestService]]
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:729)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:587)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1798)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

28-Apr-2016 16:23:45.446 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDescriptor Deployment of configuration descriptor C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\conf\Catalina\localhost\Spring4MVCCRUDRestService.xml has finished in 1,567 ms
28-Apr-2016 16:23:45.446 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\webapps\docs
28-Apr-2016 16:23:45.495 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\webapps\docs has finished in 49 ms
28-Apr-2016 16:23:45.496 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\webapps\examples
28-Apr-2016 16:23:45.846 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\webapps\examples has finished in 350 ms
28-Apr-2016 16:23:45.847 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\webapps\host-manager
28-Apr-2016 16:23:45.902 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\webapps\host-manager has finished in 56 ms
28-Apr-2016 16:23:45.902 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\webapps\manager
28-Apr-2016 16:23:45.939 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\webapps\manager has finished in 37 ms
28-Apr-2016 16:23:45.944 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-apr-8080"]
28-Apr-2016 16:23:45.962 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["ajp-apr-8009"]
28-Apr-2016 16:23:45.965 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in 9651 ms
28-Apr-2016 16:23:46.929 INFO [http-apr-8080-exec-5] org.apache.catalina.startup.HostConfig.undeploy Undeploying context []
28-Apr-2016 16:23:46.967 INFO [http-apr-8080-exec-10] org.apache.catalina.startup.HostConfig.deployDescriptor Deploying configuration descriptor C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\conf\Catalina\localhost\code.xml

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v1.3.3.RELEASE)

28-Apr-2016 16:23:53.686 INFO [http-apr-8080-exec-10] org.apache.catalina.startup.HostConfig.deployDescriptor Deployment of configuration descriptor C:\Users\systo\Downloads\apache-tomcat-8.0.33-windows-x64\apache-tomcat-8.0.33\conf\Catalina\localhost\code.xml has finished in 6,718 ms
28-Apr-2016 16:23:53.693 INFO [http-apr-8080-exec-8] org.apache.catalina.util.LifecycleBase.start The start() method was called on component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/code]] after start() had already been called. The second call will be ignored.

 

 

http://maven.apache.org/xsd/maven-4.0.0.xsd">
    4.0.0
                

Answer 1

将以下依赖项添加到pom.xml

<dependency>
    <groupId>commons-logging</groupId>
    <artifactId>commons-logging</artifactId>
    <version>1.1.1</version>
</dependency>