java - 来自java大脑的Struts 2简单应用

Question

我现在正在用 Java Brain 做一个教程，我收到了一个错误我不明白为什么我有这个错误，因为我按照教程停止任何关于错误的想法非常感谢我的控制台返回一个像这样的错误

Dec 26, 2013 2:02:43 PM org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre7\bin;C:\windows\Sun\Java\bin;C:\windows\system32;C:\windows;C:\Program Files\Broadcom\Broadcom 802.11 Network Adapter\Driver;;C:\Program Files (x86)\Intel\iCLS Client\;C:\Program Files\Intel\iCLS Client\;C:\windows\system32;C:\windows;C:\windows\System32\Wbem;C:\windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x86;C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x64;C:\Program Files\Lenovo\Bluetooth Software\;C:\Program Files\Lenovo\Bluetooth Software\syswow64;C:\Program Files\Lenovo Fingerprint Reader\;C:\Program Files\Lenovo Fingerprint Reader\x86\;C:\ProgramData\Lenovo\ReadyApps;C:\Program Files\TortoiseSVN\bin;C:\Program Files (x86)\MySQL\MySQL Utilities 1.3.5\;.
Dec 26, 2013 2:02:44 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:SimpleStruts2' did not find a matching property.
Dec 26, 2013 2:02:44 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:SampleFinder' did not find a matching property.
Dec 26, 2013 2:02:44 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
Dec 26, 2013 2:02:44 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-bio-8009"]
Dec 26, 2013 2:02:44 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 840 ms
Dec 26, 2013 2:02:44 PM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Dec 26, 2013 2:02:44 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.42
Dec 26, 2013 2:02:45 PM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: /struts-tags is already defined
Dec 26, 2013 2:02:46 PM com.opensymphony.xwork2.config.providers.XmlConfigurationProvider info
INFO: Parsing configuration file [struts-default.xml]
Dec 26, 2013 2:02:46 PM org.apache.struts2.dispatcher.Dispatcher error
SEVERE: Dispatcher initialization failed
Unable to load configuration. - bean - jar:file:/C:/Users/mmanlapig/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/SimpleStruts2/WEB-INF/lib/struts2-core-2.3.15.3.jar!/struts-default.xml:29:72
    at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:70)
    at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:446)
    at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:490)
    at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:74)
    at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:57)
    at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:281)
    at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:262)
    at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:107)
    at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4775)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5452)
    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(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: Unable to load bean: type: class:com.opensymphony.xwork2.ObjectFactory - bean - jar:file:/C:/Users/mmanlapig/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/SimpleStruts2/WEB-INF/lib/struts2-core-2.3.15.3.jar!/struts-default.xml:29:72
    at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:245)
    at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:102)
    at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:226)
    at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:67)
    ... 16 more
Caused by: Bean type class com.opensymphony.xwork2.ObjectFactory with the name xwork has already been loaded by bean - jar:file:/C:/Program%20Files/Apache%20Software%20Foundation/Tomcat%207.0/lib/struts2-core-2.3.15.3.jar!/struts-default.xml:29:72 - bean - jar:file:/C:/Users/mmanlapig/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/SimpleStruts2/WEB-INF/lib/struts2-core-2.3.15.3.jar!/struts-default.xml:29:72
    at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:229)
    ... 19 more

Dec 26, 2013 2:02:46 PM org.apache.catalina.core.StandardContext filterStart
SEVERE: Exception starting filter struts2
Unable to load configuration. - bean - jar:file:/C:/Users/mmanlapig/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/SimpleStruts2/WEB-INF/lib/struts2-core-2.3.15.3.jar!/struts-default.xml:29:72
    at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:502)
    at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:74)
    at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:57)
    at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:281)
    at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:262)
    at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:107)
    at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4775)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5452)
    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(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: Unable to load configuration. - bean - jar:file:/C:/Users/mmanlapig/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/SimpleStruts2/WEB-INF/lib/struts2-core-2.3.15.3.jar!/struts-default.xml:29:72
    at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:70)
    at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:446)
    at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:490)
    ... 14 more
Caused by: Unable to load bean: type: class:com.opensymphony.xwork2.ObjectFactory - bean - jar:file:/C:/Users/mmanlapig/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/SimpleStruts2/WEB-INF/lib/struts2-core-2.3.15.3.jar!/struts-default.xml:29:72
    at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:245)
    at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:102)
    at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:226)
    at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:67)
    ... 16 more
Caused by: Bean type class com.opensymphony.xwork2.ObjectFactory with the name xwork has already been loaded by bean - jar:file:/C:/Program%20Files/Apache%20Software%20Foundation/Tomcat%207.0/lib/struts2-core-2.3.15.3.jar!/struts-default.xml:29:72 - bean - jar:file:/C:/Users/mmanlapig/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/SimpleStruts2/WEB-INF/lib/struts2-core-2.3.15.3.jar!/struts-default.xml:29:72
    at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:229)
    ... 19 more

Dec 26, 2013 2:02:46 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Error filterStart
Dec 26, 2013 2:02:46 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [/SimpleStruts2] startup failed due to previous errors
Dec 26, 2013 2:02:46 PM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: /struts-tags is already defined
Dec 26, 2013 2:02:46 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8080"]
Dec 26, 2013 2:02:46 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8009"]
Dec 26, 2013 2:02:46 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 2615 ms

Answer 1

您已将 jar 添加到您的 tomcat 以及您的项目中。因为错误的最后一点表示 jar 在

C:/Program%20Files/Apache%20Software%20Foundation/Tomcat%207.0/lib/struts2-core‌ -2.3.15.3.jar.

把你添加的tomcat lib文件夹下的jar去掉(注意tomcat本身会有一些jar)。