Struts2 拦截器顺序问题

Question

我有一个使用 UI 中的值定义的以下拦截器堆栈

    <interceptor-stack name="applicationStack">
            <interceptor-ref name="exception"/>
            <interceptor-ref name="alias"/>
            <interceptor-ref name="servletConfig"/>
            <interceptor-ref name="i18n"/>
            <interceptor-ref name="prepare"/>
            <interceptor-ref name="chain"/>
            <interceptor-ref name="debugging"/>
            <interceptor-ref name="scopedModelDriven"/>
            <interceptor-ref name="modelDriven"/>
            <interceptor-ref name="fileUpload"/>
            <interceptor-ref name="checkbox"/>
            <interceptor-ref name="multiselect"/>
            <interceptor-ref name="staticParams"/>
            <interceptor-ref name="actionMappingParams"/>
            <interceptor-ref name="params">
              <param name="excludeParams">dojo\..*,^struts\..*</param>
            </interceptor-ref>
            <interceptor-ref name="conversionError"/>
             <interceptor-ref name="validation">
                <param name="excludeMethods">input,back,cancel,browse</param>
            </interceptor-ref>

            <interceptor-ref name="workflow">
                <param name="excludeMethods">input,back,cancel,browse</param>
            </interceptor-ref>
    <interceptor-ref name="contextSecurityInterceptor" />
    </interceptor-stack>

不会提交给操作，因此“必需”验证总是失败。 如果我首先将拦截器的顺序更改为“工作流”，然后“验证”，因为值确实被提交，并且操作在不验证值的情况下被执行。 拦截器的顺序应该是什么，以保持验证和数据提交的顺序。

struts.xml

    <?xml version="1.0" encoding="UTF-8" ?>
    <!DOCTYPE struts PUBLIC
        "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
        "http://struts.apache.org/dtds/struts-2.0.dtd">
    <struts>
        <constant name="struts.objectFactory" value="spring" />
        <constant name="struts.devMode" value="false" />

        <constant name="struts.action.extension" value="action" />

        <constant name="struts.custom.i18n.resources" value="global" />

        <package name="org" namespace="/"
            extends="struts-default,json-default">

            <result-types>
                <result-type name="tiles"
                    class="org.apache.struts2.views.tiles.TilesResult" />
            </result-types>

            <global-results>
                <result name="welcome" type="tiles">welcome</result>
            </global-results>

        </package>

        <package name="org.unsecureActions" extends="org">
            <!--
                This package contains such a actions which doesn't need user logged
                in.
            -->

            <action name="welcome" method="forwardAction" class="baseAction">
                <result name="success" type="tiles">welcome</result>
            </action>

            <action name="logoutCandidate" method="logoutCandidate" class="logoutAction">
                <result name="success" type="tiles">welcome</result>
            </action>

            <action name="loadAdvanceSearchForm" method="loadAdvanceSearch"
                class="advanceSearchAction">
                <result name="success" type="tiles">advanceSearch</result>
            </action>

            <!--Candidate workflow  actions -->
            <action name="registerCandidateStep1" class="candidateAction"
                method="registerCandidateStep1">
                <result name="input" type="tiles">registerCandidate</result>
                <result name="success" type="tiles">registerCandidate</result>

            </action>

            <action name="registerCandidateStep2" class="candidateAction"
                method="registerCandidateStep2">
                <result name="input" type="tiles">registerCandidate</result>
                <result name="success" type="tiles">registerCandidate</result>

            </action>
            <action name="registerCandidateStep3" class="candidateAction"
                method="registerCandidateStep3">
                <result name="input" type="tiles">registerCandidate</result>
                <result name="success" type="chain">
                    <param name="actionName">loginCandidate</param>
                    <param name="namespace">/org.unsecureActions</param>
                </result>
            </action>

            <action name="loadCandidateRegistrationForm" class="loadCandidateFromAction"
                method="loadCandidateRegistrationForm">
                <result name="success" type="tiles">registerCandidate</result>
            </action>
            <!--Candidate workflow  actions -->

            <action name="loginCandidate" class="loginAction" method="loginCandidate">
                <result name="success" type="tiles">home</result>
                <result name="input" type="tiles">welcome</result>
            </action>

        </package>

        <package name="org.secureActions" extends="org">
            <!--
                This package contains such a actions which needs user must logged in
                before executing these.
            -->


            <action name="home" method="forwardAction" class="baseAction">
                <result name="success" type="tiles">home</result>
            </action>

            <action name="loadAdvanceSearchForm" method="loadAdvanceSearch"
                class="advanceSearchAction">
                <result name="success" type="tiles">advanceSearch</result>
            </action>

            <action name="simpleSearch" method="simpleSearch" class="simpleSearchAction">
                <result name="success" type="tiles">search</result>
                <result name="input" type="tiles">home</result>
            </action>

            <action name="advanceSearch" method="advanceSearch" class="advanceSearchAction">
                <result name="success" type="tiles">search</result>
            </action>
            <action name="loadImage" method="loadImage" class="imageAction">
                <result name="imageData" type="stream">
                    <param name="contentType">${imageContentType}</param>
                    <param name="inputName">imageStream</param>
                    <param name="contentDisposition">filename="candidate.jpeg"</param>
                    <param name="bufferSize">${myBufferSize}</param>
                </result>
            </action>

        </package>

    </struts>

Answer 1

“验证”和“工作流”拦截器都不负责设置操作的参数，这是由“params”拦截器完成的。

“工作流”仅在“验证”之后才有意义，因为它检查操作中是否存在任何错误，如果存在，则转到输入结果（默认情况下）。

您显示的配置是默认配置加上您的拦截器（这对于所谓的“安全”的东西来说是可疑的）。

如果您没有看到在操作上设置的值，则说明有其他问题，因为默认配置按原样工作 - 所以它要么与您的拦截器、现有应用程序流等有关。