异常如下：

[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building ssm 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] >>> tomcat7-maven-plugin:2.1:run (default-cli) > process-classes @ ssm >>>
[WARNING] The artifact aspectj:aspectjweaver:jar:1.5.4 has been relocated to org.aspectj:aspectjweaver:jar:1.5.4
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ ssm ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 1 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ ssm ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent!
[INFO] Compiling 1 source file to D:\git\ssm\target\classes
[INFO]
[INFO] <<< tomcat7-maven-plugin:2.1:run (default-cli) < process-classes @ ssm <<<
[WARNING] The artifact aspectj:aspectjweaver:jar:1.5.4 has been relocated to org.aspectj:aspectjweaver:jar:1.5.4
[INFO]
[INFO] --- tomcat7-maven-plugin:2.1:run (default-cli) @ ssm ---
[INFO] Running war on http://localhost:8093/ssm
[INFO] Creating Tomcat server configuration at D:\git\ssm\target\tomcat
[INFO] create webapp with contextPath: /ssm
十二月 25, 2017 9:46:54 下午 org.apache.coyote.AbstractProtocol init
信息: Initializing ProtocolHandler ["http-bio-8093"]
十二月 25, 2017 9:46:54 下午 org.apache.catalina.core.StandardService startInternal
信息: Starting service Tomcat
十二月 25, 2017 9:46:54 下午 org.apache.catalina.core.StandardEngine startInternal
信息: Starting Servlet Engine: Apache Tomcat/7.0.37
十二月 25, 2017 9:46:55 下午 org.apache.catalina.startup.TaglibUriRule body
信息: TLD skipped. URI: http://java.sun.com/jstl/core_rt is already defined
十二月 25, 2017 9:46:55 下午 org.apache.catalina.startup.TaglibUriRule body
信息: TLD skipped. URI: http://java.sun.com/jstl/core is already defined
十二月 25, 2017 9:46:55 下午 org.apache.catalina.startup.TaglibUriRule body
信息: TLD skipped. URI: http://java.sun.com/jsp/jstl/core is already defined
十二月 25, 2017 9:46:55 下午 org.apache.catalina.startup.TaglibUriRule body
信息: TLD skipped. URI: http://java.sun.com/jstl/fmt_rt is already defined
十二月 25, 2017 9:46:55 下午 org.apache.catalina.startup.TaglibUriRule body
信息: TLD skipped. URI: http://java.sun.com/jstl/fmt is already defined
十二月 25, 2017 9:46:55 下午 org.apache.catalina.startup.TaglibUriRule body
信息: TLD skipped. URI: http://java.sun.com/jsp/jstl/fmt is already defined
十二月 25, 2017 9:46:55 下午 org.apache.catalina.startup.TaglibUriRule body
信息: TLD skipped. URI: http://java.sun.com/jsp/jstl/functions is already defined
十二月 25, 2017 9:46:55 下午 org.apache.catalina.startup.TaglibUriRule body
信息: TLD skipped. URI: http://jakarta.apache.org/taglibs/standard/permittedTaglibs is already defined
十二月 25, 2017 9:46:55 下午 org.apache.catalina.startup.TaglibUriRule body
信息: TLD skipped. URI: http://jakarta.apache.org/taglibs/standard/scriptfree is already defined
十二月 25, 2017 9:46:55 下午 org.apache.catalina.startup.TaglibUriRule body
信息: TLD skipped. URI: http://java.sun.com/jstl/sql_rt is already defined
十二月 25, 2017 9:46:55 下午 org.apache.catalina.startup.TaglibUriRule body
信息: TLD skipped. URI: http://java.sun.com/jstl/sql is already defined
十二月 25, 2017 9:46:55 下午 org.apache.catalina.startup.TaglibUriRule body
信息: TLD skipped. URI: http://java.sun.com/jsp/jstl/sql is already defined
十二月 25, 2017 9:46:55 下午 org.apache.catalina.startup.TaglibUriRule body
信息: TLD skipped. URI: http://java.sun.com/jstl/xml_rt is already defined
十二月 25, 2017 9:46:55 下午 org.apache.catalina.startup.TaglibUriRule body
信息: TLD skipped. URI: http://java.sun.com/jstl/xml is already defined
十二月 25, 2017 9:46:55 下午 org.apache.catalina.startup.TaglibUriRule body
信息: TLD skipped. URI: http://java.sun.com/jsp/jstl/xml is already defined
十二月 25, 2017 9:46:56 下午 org.apache.catalina.core.ApplicationContext log
信息: No Spring WebApplicationInitializer types detected on classpath
十二月 25, 2017 9:46:56 下午 org.apache.catalina.core.ApplicationContext log
信息: Initializing Spring root WebApplicationContext
INFO [localhost-startStop-1] - Root WebApplicationContext: initialization started
DEBUG [localhost-startStop-1] - Adding [servletConfigInitParams] PropertySource with lowest search precedence
DEBUG [localhost-startStop-1] - Adding [servletContextInitParams] PropertySource with lowest search precedence
DEBUG [localhost-startStop-1] - Adding [jndiProperties] PropertySource with lowest search precedence
DEBUG [localhost-startStop-1] - Adding [systemProperties] PropertySource with lowest search precedence
DEBUG [localhost-startStop-1] - Adding [systemEnvironment] PropertySource with lowest search precedence
DEBUG [localhost-startStop-1] - Initialized StandardServletEnvironment with PropertySources [servletConfigInitParams,servletContextInitParams,jndiProperties,systemProperties,systemEnvironment]
DEBUG [localhost-startStop-1] - Replacing [servletContextInitParams] PropertySource with [servletContextInitParams]
INFO [localhost-startStop-1] - Refreshing Root WebApplicationContext: startup date [Mon Dec 25 21:46:56 CST 2017]; root of context hierarchy
DEBUG [localhost-startStop-1] - Adding [systemProperties] PropertySource with lowest search precedence
DEBUG [localhost-startStop-1] - Adding [systemEnvironment] PropertySource with lowest search precedence
DEBUG [localhost-startStop-1] - Initialized StandardEnvironment with PropertySources [systemProperties,systemEnvironment]
INFO [localhost-startStop-1] - Loading XML bean definitions from class path resource [spring.xml]
ERROR [localhost-startStop-1] - Context initialization failed
org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from class path resource [spring.xml]; nested exception is java.io.FileNotFoundException: class path resource [spring.xml] cannot be opened because it does not exist
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:344)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:304)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:181)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:217)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:188)
at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:125)
at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:94)
at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:129)
at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:537)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:452)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:434)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4797)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5291)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
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.io.FileNotFoundException: class path resource [spring.xml] cannot be opened because it does not exist
at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:172)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:330)
... 21 more
十二月 25, 2017 9:46:56 下午 org.apache.catalina.core.StandardContext listenerStart
严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from class path resource [spring.xml]; nested exception is java.io.FileNotFoundException: class path resource [spring.xml] cannot be opened because it does not exist
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:344)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:304)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:181)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:217)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:188)
at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:125)
at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:94)
at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:129)
at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:537)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:452)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:434)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4797)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5291)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.FileNotFoundException: class path resource [spring.xml] cannot be opened because it does not exist
at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:172)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:330)
... 21 more

十二月 25, 2017 9:46:56 下午 org.apache.catalina.core.StandardContext startInternal
严重: Error listenerStart
十二月 25, 2017 9:46:56 下午 org.apache.catalina.core.StandardContext startInternal
严重: Context [/ssm] startup failed due to previous errors
十二月 25, 2017 9:46:56 下午 org.apache.catalina.core.ApplicationContext log
信息: Closing Spring root WebApplicationContext
INFO [localhost-startStop-1] - Closing Root WebApplicationContext: startup date [Mon Dec 25 21:46:56 CST 2017]; root of context hierarchy
WARN [localhost-startStop-1] - Exception thrown from ApplicationListener handling ContextClosedEvent
java.lang.IllegalStateException: ApplicationEventMulticaster not initialized - call 'refresh' before multicasting events via the context: Root WebApplicationContext: startup date [Mon Dec 25 21:46:56 CST 2017]; root of context hierarchy
at org.springframework.context.support.AbstractApplicationContext.getApplicationEventMulticaster(AbstractApplicationContext.java:344)
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:331)
at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:869)
at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:836)
at org.springframework.web.context.ContextLoader.closeWebApplicationContext(ContextLoader.java:578)
at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:115)
at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4837)
at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5483)
at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:160)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
WARN [localhost-startStop-1] - Exception thrown from LifecycleProcessor on context close
java.lang.IllegalStateException: LifecycleProcessor not initialized - call 'refresh' before invoking lifecycle methods via the context: Root WebApplicationContext: startup date [Mon Dec 25 21:46:56 CST 2017]; root of context hierarchy
at org.springframework.context.support.AbstractApplicationContext.getLifecycleProcessor(AbstractApplicationContext.java:357)
at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:877)
at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:836)
at org.springframework.web.context.ContextLoader.closeWebApplicationContext(ContextLoader.java:578)
at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:115)
at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4837)
at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5483)
at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:160)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
十二月 25, 2017 9:46:56 下午 org.apache.catalina.core.StandardContext listenerStop
严重: Exception sending context destroyed event to listener instance of class org.springframework.web.context.ContextLoaderListener
java.lang.IllegalStateException: BeanFactory not initialized or already closed - call 'refresh' before accessing beans via the ApplicationContext
at org.springframework.context.support.AbstractRefreshableApplicationContext.getBeanFactory(AbstractRefreshableApplicationContext.java:170)
at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:908)
at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:884)
at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:836)
at org.springframework.web.context.ContextLoader.closeWebApplicationContext(ContextLoader.java:578)
at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:115)
at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4837)
at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5483)
at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:160)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
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)

十二月 25, 2017 9:46:56 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
严重: The web application [/ssm] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
十二月 25, 2017 9:46:56 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
严重: The web application [/ssm] registered the JDBC driver [com.mysql.fabric.jdbc.FabricMySQLDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
十二月 25, 2017 9:46:56 下午 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
严重: The web application [/ssm] appears to have started a thread named [Abandoned connection cleanup thread] but has failed to stop it. This is very likely to create a memory leak.
十二月 25, 2017 9:46:56 下午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler ["http-bio-8093"]

解决方法：

<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.6</source>
<target>1.6</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.1.1</version>
<configuration>
<warSourceExcludes>${warExcludes}</warSourceExcludes>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.4.3</version>
<configuration>
<testFailureIgnore>true</testFailureIgnore>
</configuration>
</plugin>
<plugin>
<inherited>true</inherited>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-source-plugin</artifactId>
<executions>
<execution>
<id>attach-sources</id>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<configuration>
<encoding>UTF-8</encoding>
</configuration>
</plugin>

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