Struts 2　〜report of progress of a struggle〜　環境設定

Struts 2 java

struts-2.2.1.1 を使ってWebアプリを作成する。
適当なので参考にしないように。。

Eclipseで動的Webアプリケーションプロジェクトを作成する。

/sample/WebContent/WEB-INF/lib
ここに以下のjarファイルをコピー。すべてstruts-2.2.1.1のlibから。

  • commons-fileupload-1.2.1.jar
  • commons-io-1.3.2.jar
  • commons-logging-1.0.4.jar
  • freemarker-2.3.16.jar
  • ognl-3.0.jar
  • struts2-convention-plugin-2.2.1.1.jar
  • struts2-core-2.2.1.1.jar
  • xwork-core-2.2.1.1.jar

以下web.xml（抜粋）

sample

Struts2
org.apache.struts2.dispatcher.FilterDispatcher


Struts2
/*


index.html
index.htm
index.jsp
default.html
default.htm
default.jsp
welcome.action

つづいてstruts.xml（抜粋）






/WEB-INF/jsp/login.jsp

さらにlogin.jspとWelcomeAction.classを作成して起動を試みるが以下のとおりエラーで起動失敗。

情報: サービス Catalina を起動します
2011/01/12 22:02:48 org.apache.catalina.core.StandardEngine start
情報: Starting Servlet Engine: Apache Tomcat/6.0.29
2011/01/12 22:02:51 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
情報: Parsing configuration file [struts-default.xml]
2011/01/12 22:02:51 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
情報: Parsing configuration file [struts-plugin.xml]
2011/01/12 22:02:52 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
情報: Parsing configuration file [struts.xml]
2011/01/12 22:02:52 com.opensymphony.xwork2.util.logging.commons.CommonsLogger error
致命的: Dispatcher initialization failed
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at com.opensymphony.xwork2.inject.ContainerImpl$MethodInjector.inject(ContainerImpl.java:295)
at com.opensymphony.xwork2.inject.ContainerImpl$ConstructorInjector.construct(ContainerImpl.java:431)
at com.opensymphony.xwork2.inject.ContainerBuilder$5.create(ContainerBuilder.java:207)
at com.opensymphony.xwork2.inject.Scope$2$1.create(Scope.java:51)
at com.opensymphony.xwork2.inject.ContainerBuilder$3.create(ContainerBuilder.java:93)
at com.opensymphony.xwork2.inject.ContainerBuilder$7.call(ContainerBuilder.java:487)
at com.opensymphony.xwork2.inject.ContainerBuilder$7.call(ContainerBuilder.java:484)
at com.opensymphony.xwork2.inject.ContainerImpl.callInContext(ContainerImpl.java:574)
at com.opensymphony.xwork2.inject.ContainerBuilder.create(ContainerBuilder.java:484)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.createBootstrapContainer(DefaultConfiguration.java:252)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:193)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:371)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:415)
at org.apache.struts2.dispatcher.FilterDispatcher.init(FilterDispatcher.java:190)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)
at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:115)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4001)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4651)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445)
at org.apache.catalina.core.StandardService.start(StandardService.java:519)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:581)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.opensymphony.xwork2.inject.ContainerImpl$MethodInjector.inject(ContainerImpl.java:293)
... 32 more
Caused by: java.lang.ExceptionInInitializerError
at com.opensymphony.xwork2.ognl.OgnlValueStackFactory.setContainer(OgnlValueStackFactory.java:85)
... 37 more
Caused by: java.lang.IllegalArgumentException: Javassist library is missing in classpath! Please add missed dependency!
at ognl.OgnlRuntime.(OgnlRuntime.java:165)
... 38 more
Caused by: java.lang.ClassNotFoundException: javassist.ClassPool
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1645)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1491)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at ognl.OgnlRuntime.(OgnlRuntime.java:162)
... 38 more

ネットで調べたところjavassist.jarが必要らしいのでダウンロードしてlibに追加する。

再度起動を試みると正常起動した。
ディレクトリ構成は以下のとおり