struts-2.1.6問題及解決

剛剛下了struts-2.1.6，以爲和前幾個版本沒什麼兩樣，而且很長時間沒用struts2了，於是很隨便的寫了hellworld來感受一下，運行之後瀏覽器出現下面的問題：

HTTP Status 404 -

---

type Status report

message

description The requested resource () is not available.

---

Apache Tomcat/6.0.20

這種問題已出現肯定是web.xml出現問題了，下面是web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
id="WebApp_ID" version="2.5">
  <display-name>StrutsTest</display-name>
  <filter>
		<filter-name>struts2</filter-name>
		<filter-class>
			org.apache.struts2.dispatcher.FilterDispatcher
		</filter-class>
	</filter>
	<filter-mapping>
		<filter-name>struts2</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>

  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

 也沒什麼問題，而且導入了struts2的核心包：commons-logging-1.0.4.jar,freemarker-2.3.13.jar,ognl-2.6.11.jar,struts2-core-2.1.6.jar,xwork-2.1.2.jar。於是查看tomcat的log:

嚴重: Exception starting filter struts2
Unable to load configuration. - bean - jar:file:/E:/eclipse_workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/StrutsTest/WEB-INF/lib/struts2-core-2.1.6.jar!/struts-default.xml:46:178
	at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:58)
	at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:360)
	at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:403)
	at org.apache.struts2.dispatcher.FilterDispatcher.init(FilterDispatcher.java:190)
	at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:275)
	at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:397)
	at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:108)
	at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3800)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4450)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:722)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
	at org.apache.catalina.core.StandardService.start(StandardService.java:516)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:583)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: Unable to load bean: type:org.apache.struts2.dispatcher.multipart.MultiPartRequest class:org.apache.struts2.dispatcher.multipart.JakartaMultiPartRequest - bean - jar:file:/E:/eclipse_workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/StrutsTest/WEB-INF/lib/struts2-core-2.1.6.jar!/struts-default.xml:46:178
	at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:222)
	at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:101)
	at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:165)
	at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:55)
	... 21 more
Caused by: java.lang.NoClassDefFoundError: org/apache/commons/fileupload/FileUploadException
	at java.lang.Class.getDeclaredConstructors0(Native Method)
	at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
	at java.lang.Class.getDeclaredConstructors(Unknown Source)
	at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:212)
	... 24 more

 

原來是fileuploadException出現了問題，原來還需要把commons-fileupload-1.2.1.jar這個包加進來，之後就可以順利運行了。