Question

struts2 新手问题

There is no Action mapped for namespace / and action name helloworldstrust2. - [unknown location]

at com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:189)
at org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:61)
at org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:39)
at com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)
at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:475)
at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

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Answer 1

namespace="/" extends="struts-default"

追问

不是这个错误，我之间是这样的，后来改了改。
主要是这个：There is no Action mapped for namespace / and action name helloworldstrust2. - [unknown location]。
什么namespace和action

追答

就是你没有一个namespace是“/”

Answer 2

struts - default 为什么有空格呢？

追问

不是这个吧，我之前没空格，还是有错，后面看书上这样写的改了改，还是有错