资源文件放在Source Folder目录下面，这个目录同样会编译到classes目录下
web.xml的
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
在服务器启动的同时加载Spring的ApplicationContext对象到ServletContext范围，回头你到处都可以用了。这句话简单的意思是在服务器启动的时候把Spring环境启动起来。
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext*.xml</param-value>
</context-param>
这句话是配置你的Spring读哪个配置文件的。
<filter>
<filter-name>openSessionInView</filter-name>
<filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
</filter>
每次它都是延迟加载，而且延迟加载的东西都能得到。
<filter-mapping>
<filter-name>openSessionInView</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
这是openSessionInView的过滤器，不说了。
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
这是struts2的核心过滤器。
配置文件中openSessionInView和struts2是有顺序之分的。openSessionInView必须写在struts2之前。openSessionInView是延迟加载，用到再说吧。
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
这是struts 2的过滤器不说了。
web.xml文件解释过了。
下面解释struts2
<struts> //这是struts 的根
<constant name="struts.devMode" value="true" /> 开发模式开启
<constant name="struts.ui.theme" value="simple" />
<package name="default" namespace="/" extends="struts-default">
</package>
</struts>
你自己写的东西难道依赖编译器帮你检验吗？编译环境只是帮你做格式检验。
启动服务器报错
Caused by: java.lang.IllegalArgumentException: Could not resolve resource location pattern [classpath:cn/itcast/invoice/**/vo/*Model.hbm.xml]: class path resource [cn/itcast/invoice/] cannot be resolved to URL because it does not exist
at org.springframework.core.io.support.ResourceArrayPropertyEditor.setAsText(ResourceArrayPropertyEditor.java:135)
at org.springframework.beans.TypeConverterDelegate.doConvertTextValue(TypeConverterDelegate.java:452)
at org.springframework.beans.TypeConverterDelegate.doConvertValue(TypeConverterDelegate.java:424)
at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:181)
at org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:450)
... 41 more
2017-1-31 19:51:01 org.apache.catalina.core.StandardContext startInternal
你想用
<property name="mappingLocations">
<value>classpath:cn/itcast/invoice/**/vo/*Model.hbm.xml</value>
</property>
这个格式必须得保证前面的那个包cn/itcast/invoice是存在的。后面既然你写**就意味着有可能有有可能没有。如果删掉cn/itcast/invoice扫描速度太慢了。所以加上cn.itcast.invoice包吧。
仅仅是加上这个包cn.itcast.invoice服务器启动的时候就不报错了。
2017-1-31 19:57:25 org.apache.catalina.startup.VersionLoggerListener log
信息: Server version: Apache Tomcat/7.0.75
2017-1-31 19:57:25 org.apache.catalina.startup.VersionLoggerListener log
信息: Server built: Jan 18 2017 20:54:42 UTC
2017-1-31 19:57:25 org.apache.catalina.startup.VersionLoggerListener log
信息: Server number: 7.0.75.0
2017-1-31 19:57:25 org.apache.catalina.startup.VersionLoggerListener log
信息: OS Name: Windows Vista
2017-1-31 19:57:25 org.apache.catalina.startup.VersionLoggerListener log
信息: OS Version: 6.1
2017-1-31 19:57:25 org.apache.catalina.startup.VersionLoggerListener log
信息: Architecture: amd64
2017-1-31 19:57:25 org.apache.catalina.startup.VersionLoggerListener log
信息: Java Home: C:\Users\ZhongZhenhua\AppData\Local\MyEclipse\Common\binary\com.sun.java.jdk.win32.x86_64_1.6.0.013\jre
2017-1-31 19:57:25 org.apache.catalina.startup.VersionLoggerListener log
信息: JVM Version: 1.6.0_13-b03
2017-1-31 19:57:25 org.apache.catalina.startup.VersionLoggerListener log
信息: JVM Vendor: Sun Microsystems Inc.
2017-1-31 19:57:25 org.apache.catalina.startup.VersionLoggerListener log
信息: CATALINA_BASE: F:\apache-tomcat-7.0.75-windows-x64\apache-tomcat-7.0.75
2017-1-31 19:57:25 org.apache.catalina.startup.VersionLoggerListener log
信息: CATALINA_HOME: F:\apache-tomcat-7.0.75-windows-x64\apache-tomcat-7.0.75
2017-1-31 19:57:25 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Dcatalina.home=F:\apache-tomcat-7.0.75-windows-x64\apache-tomcat-7.0.75
2017-1-31 19:57:25 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Dcatalina.base=F:\apache-tomcat-7.0.75-windows-x64\apache-tomcat-7.0.75
2017-1-31 19:57:25 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Djava.endorsed.dirs=F:\apache-tomcat-7.0.75-windows-x64\apache-tomcat-7.0.75/common/endorsed
2017-1-31 19:57:25 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Djava.io.tmpdir=F:\apache-tomcat-7.0.75-windows-x64\apache-tomcat-7.0.75\temp
2017-1-31 19:57:25 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Djava.library.path=C:\Users\ZhongZhenhua\AppData\Local\MyEclipse\Common\binary\com.sun.java.jdk.win32.x86_64_1.6.0.013\bin;F:\apache-tomcat-7.0.75-windows-x64\apache-tomcat-7.0.75\bin
2017-1-31 19:57:25 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Dsun.io.useCanonCaches=false
2017-1-31 19:57:25 org.apache.catalina.core.AprLifecycleListener lifecycleEvent
信息: Loaded APR based Apache Tomcat Native library 1.2.10 using APR version 1.5.2.
2017-1-31 19:57:25 org.apache.catalina.core.AprLifecycleListener lifecycleEvent
信息: APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].
2017-1-31 19:57:26 org.apache.catalina.core.AprLifecycleListener initializeSSL
信息: OpenSSL successfully initialized (OpenSSL 1.0.2j 26 Sep 2016)
2017-1-31 19:57:26 org.apache.coyote.AbstractProtocol init
信息: Initializing ProtocolHandler ["http-apr-8080"]
2017-1-31 19:57:26 org.apache.coyote.AbstractProtocol init
信息: Initializing ProtocolHandler ["ajp-apr-8009"]
2017-1-31 19:57:26 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 1990 ms
2017-1-31 19:57:26 org.apache.catalina.core.StandardService startInternal
信息: Starting service Catalina
2017-1-31 19:57:26 org.apache.catalina.core.StandardEngine startInternal
信息: Starting Servlet Engine: Apache Tomcat/7.0.75
2017-1-31 19:57:26 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory F:\apache-tomcat-7.0.75-windows-x64\apache-tomcat-7.0.75\webapps\docs
2017-1-31 19:57:27 org.apache.tomcat.websocket.server.WsSci onStartup
信息: JSR 356 WebSocket (Java WebSocket 1.1) support is not available when running on Java 6. To suppress this message, run Tomcat on Java 7, remove the WebSocket JARs from $CATALINA_HOME/lib or add the WebSocket JARs to the tomcat.util.scan.DefaultJarScanner.jarsToSkip property in $CATALINA_BASE/conf/catalina.properties. Note that the deprecated Tomcat 7 WebSocket API will be available.
2017-1-31 19:57:27 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory F:\apache-tomcat-7.0.75-windows-x64\apache-tomcat-7.0.75\webapps\docs has finished in 689 ms
2017-1-31 19:57:27 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory F:\apache-tomcat-7.0.75-windows-x64\apache-tomcat-7.0.75\webapps\ERP
2017-1-31 19:57:31 org.apache.catalina.startup.TldConfig execute
信息: 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.
2017-1-31 19:57:31 org.apache.catalina.core.ApplicationContext log
信息: No Spring WebApplicationInitializer types detected on classpath
2017-1-31 19:57:31 org.apache.catalina.core.ApplicationContext log
信息: Initializing Spring root WebApplicationContext
2017-1-31 19:57:36 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory F:\apache-tomcat-7.0.75-windows-x64\apache-tomcat-7.0.75\webapps\ERP has finished in 9,624 ms
2017-1-31 19:57:36 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory F:\apache-tomcat-7.0.75-windows-x64\apache-tomcat-7.0.75\webapps\examples
2017-1-31 19:57:37 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
2017-1-31 19:57:37 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
2017-1-31 19:57:37 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: attributeAdded('org.apache.jasper.compiler.TldLocationsCache', 'org.apache.jasper.compiler.TldLocationsCache@758c3b7')
2017-1-31 19:57:37 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory F:\apache-tomcat-7.0.75-windows-x64\apache-tomcat-7.0.75\webapps\examples has finished in 579 ms
2017-1-31 19:57:37 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory F:\apache-tomcat-7.0.75-windows-x64\apache-tomcat-7.0.75\webapps\host-manager
2017-1-31 19:57:37 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory F:\apache-tomcat-7.0.75-windows-x64\apache-tomcat-7.0.75\webapps\host-manager has finished in 132 ms
2017-1-31 19:57:37 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory F:\apache-tomcat-7.0.75-windows-x64\apache-tomcat-7.0.75\webapps\manager
2017-1-31 19:57:37 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory F:\apache-tomcat-7.0.75-windows-x64\apache-tomcat-7.0.75\webapps\manager has finished in 147 ms
2017-1-31 19:57:37 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory F:\apache-tomcat-7.0.75-windows-x64\apache-tomcat-7.0.75\webapps\ROOT
2017-1-31 19:57:37 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory F:\apache-tomcat-7.0.75-windows-x64\apache-tomcat-7.0.75\webapps\ROOT has finished in 114 ms
2017-1-31 19:57:37 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler ["http-apr-8080"]
2017-1-31 19:57:37 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler ["ajp-apr-8009"]
2017-1-31 19:57:37 org.apache.catalina.startup.Catalina start
信息: Server startup in 11455 ms