java - HTTP 状态 500 - 引用名为 [XXXX] 的未知类的无效操作类配置

Question

我是 struts2 的新手，我遇到了以下异常，我的整个项目因此而停滞不前。我正在使用 Struts2 和 Spring 3.0

谁能告诉我出现这种异常的可能原因是什么

java.lang.RuntimeException: Invalid action class configuration that references an unknown class named [marginAccountAction3]
org.apache.struts2.convention.ConventionsServiceImpl.determineResultPath(ConventionsServiceImpl.java:100)
org.apache.struts2.convention.ConventionUnknownHandler.determinePath(ConventionUnknownHandler.java:385)
org.apache.struts2.convention.ConventionUnknownHandler.handleUnknownResult(ConventionUnknownHandler.java:274)
com.opensymphony.xwork2.DefaultUnknownHandlerManager.handleUnknownResult(DefaultUnknownHandlerManager.java:76)
com.opensymphony.xwork2.DefaultActionInvocation.createResult(DefaultActionInvocation.java:215)
com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:356)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:266)
com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:252)
org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:122)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:179)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:94)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:306)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:89)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:130)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:126)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:138)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:165)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:179)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)
org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)
org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:488)
org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)

MarginAccountAction3.java

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.rmi.RemoteException;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.axis2.AxisFault;
import org.apache.commons.io.FileUtils;
import org.apache.struts2.ServletActionContext;
import org.apache.struts2.interceptor.ServletResponseAware;
import org.hibernate.Criteria;
import org.hibernate.criterion.Restrictions;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;


public class MarginAccountAction3 extends AMTSBaseAction implements ServletResponseAware {

    private static final long serialVersionUID = 6034744203411681476L;

    private void clearSessionValues() {
        /*
        *
        */
    }

    private void setValuesForApproval() {
    /* 
    * 
    */
    }

    public String submitForApprovalAction(){
        setValuesForApproval();
        clearSessionValues();
        return SUCCESS;
    }
}

struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
    <constant name="struts.custom.i18n.resources" value="global" />
    <constant name="struts.devMode" value="false" />
    <constant name="struts.multipart.saveDir"
        value="/home/engineer/Desktop/margin_trading/file_upload_path" />
      <constant name="struts.objectFactory" value="spring" />

    <package name="default" namespace="/"
        extends="jasperreports-default,struts-default">
        <interceptors>
            <interceptor name="checkUserRole" class="checkUserRole" />
        </interceptors>

        <global-results>
            <result name="unauthorized">view/errorpages/unauthorized.jsp</result>
            <result name="sessionexpired">view/errorpages/sessionexpired.jsp</result>
            <result name="processerror">view/errorpages/sytemerror.jsp</result>
            <result name="webserviceerror">view/errorpages/webserviceerror.jsp</result>
        </global-results>

        <action name="submitForApprovalAction" class="marginAccountAction3"
            method="submitForApprovalAction">
            <interceptor-ref name="completeStack" />
            <!-- <interceptor-ref name="checkUserRole"/> -->
            <result name="success">view/successpages/success.jsp</result>
        </action>

    </package>

</struts>    

Action bean.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans
    xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:p="http://www.springframework.org/schema/p"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">


    <!--Action Beans Configuration  -->

    <bean id="marginAccountAction3" name="marginAccountAction3" class="com.amts.action.MarginAccountAction3"> 

        <property name="brokerageBD" ref="brokerageBD" />
        <property name="marginAccountBD" ref="marginAccountBD" />
        <property name="MarginCallBD" ref="MarginCallBD"/>
        <property name="documentBD" ref="documentBD"/>

    </bean>

</beans>

谢谢!

Answer 1

可能且实际的原因是 classpash 上存在约定插件。就您使用 spring 插件通过 classrefbyid 将操作委托(delegate)给 spring 而言，您不能使用约定插件。顺便说一句，调用约定插件是因为您没有在操作配置中定义 Action.INPUT 结果。

action name="submitForApprovalAction" class="marginAccountAction3"
    method="submitForApprovalAction">
    <interceptor-ref name="completeStack" />
    <!-- <interceptor-ref name="checkUserRole"/> -->
    <result name="success">view/successpages/success.jsp</result>
    <result name="input">/path/to/whateverjspissubmittedthisaction.jsp</result>
</action>