In Struts2 There is no Action mapped for namespace error Solution

1. My original configuration

jsp form submission path

<form class="layui-form" id="form" action="${ctx }/membersLogin/membersLoginAction!membersLogin.action">
    ............
</form>

struts2 interceptor configuration

    <package name="default" extends="struts-default" namespace="/membersLogin" strict-method-invocation="false">
        <action name="membersLoginAction" class="seventykg.web.MembersLoginAction">
            <result name="login_success">/index.jsp</result>
            <result name="login_fail">/login_fail.jsp</result>
        </action>
    </package>

2. Common sense is not the problem

But each time the form is submitted being given as follows:

There is no Action mapped for namespace。。。。。。。。。

3. Baidu search a bit all sorts of solutions, not what I want, but unfortunately looked struts.xml own configuration file, found that there is a place called:

 

    <! - whether to enable dynamic method invocation -> 
    <Constant name = "struts.enable.DynamicMethodInvocation" value = "to true" />

 

When this value = "false" when it is not supported ( $ {} /membersLogin/membersLoginAction!membersLogin.action CTX ) with this method ( membersLogin path), only the support ( $ {} CTX / membersLogin / membersLoginAction ) this method then need to write to the configuration file

<package name="default" extends="struts-default" namespace="/membersLogin" strict-method-invocation="false">
        <action name="membersLoginAction" class="membersLoginAction" method="membersLogin">
            <result name="login_success">/index.jsp</result>
            <result name="login_fail">/login_fail.jsp</result>
        </action>
</package>

Into true problems can be solved

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Today's special is to add this unusual problem:

In the same struts configuration file, name attribute package labels can not be all default, if more than one, it is necessary to name a name, if not or will report this exception:

There is no Action mapped for namespace [/membersLogin] and action name [membersLoginAction] associated with context path...

 

 

 

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Supplementary again

If the problem is still there

You can see if your name wrong struts.xml