我正在使用 spring 源 dm 服务器版本 2.0.0。我在 spring/struts/hibernate 中开发了一个应用程序。当我在 spring dm 服务器中运行我的应用程序时
它给了我这样的错误：
HTTP 状态 503 - Servlet 操作当前不可用类型：状态报告消息：Servlet 操作当前不可用
描述：请求的服务（Servlet 操作当前不可用）当前不可用。
我的 web.xml：
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4">
<!-- Action Servlet Configuration -->
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>
org.apache.struts.action.ActionServlet
</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>3</param-value>
</init-param>
<init-param>
<param-name>detail</param-name>
<param-value>3</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<!-- Spring Framework context Loader -->
<servlet>
<servlet-name>context</servlet-name>
<servlet-class>
org.springframework.web.context.ContextLoaderServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- Spring Framework context config location -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/applicationContext*.xml
</param-value>
</context-param>
<!--TODO Prevent direct calls to *.jsp -->
<!-- Action Servlet Mapping -->
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
<!-- The Welcome File List -->
<welcome-file-list>
<welcome-file>start.jsp</welcome-file>
</welcome-file-list>
<!-- Define the basename for a resource bundle for I18N -->
<context-param>
<param-name>
javax.servlet.jsp.jstl.fmt.localizationContext
</param-name>
<param-value>
com.patni.temgt.web.ApplicationResources
</param-value>
</context-param>
<resource-ref>
<description>DB Connection</description>
<res-ref-name>jdbc/SettleTest</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
struts-config.xml 是：
<form-beans>
<form-bean name="timeEntryForm"
type="com.patni.temgt.web.CreateTimeEntryActionForm" />
<form-bean name="expenseEntryForm"
type="com.patni.temgt.web.CreateExpenseEntryActionForm" />
<form-bean name="timeEntryReportForm"
type="com.patni.temgt.web.TimeEntryReportActionForm" />
<form-bean name="adminCostingCodeForm"
type="com.patni.temgt.web.AdminCostingCodeActionForm" />
<form-bean name="loginForm"
type="com.patni.temgt.web.LoginActionForm" />
<form-bean name="adminEnvironmentVariableForm"
type="com.patni.temgt.web.AdminEnvironmentVariableActionForm" />
<form-bean name="adminEmployeeForm"
type="com.patni.temgt.web.AdminEmployeeActionForm" />
<form-bean name="adminContactDetailForm"
type="com.patni.temgt.web.AdminContactDetailActionForm" />
<form-bean name="adminApplicationUserForm"
type="com.patni.temgt.web.AdminApplicationUserActionForm" />
<form-bean name="adminUserRoleForm"
type="com.patni.temgt.web.AdminUserRoleActionForm" />
<form-bean name="myCostingCodeForm"
type="com.patni.temgt.web.MyCostingCodeActionForm" />
</form-beans>
<global-forwards>
<forward name="login" path="/WEB-INF/jsp/login.jsp" />
</global-forwards>
<action-mappings>
<action path="/timeEntry"
type="com.patni.temgt.web.CreateTimeEntryAction"
name="timeEntryForm" scope="session" validate="false"
input="/WEB-INF/jsp/timeEntry.jsp">
<forward name="success" path="/WEB-INF/jsp/timeEntry.jsp" />
<forward name="invalid" path="/WEB-INF/jsp/timeEntry.jsp" />
</action>
<action path="/expenseEntry"
type="com.patni.temgt.web.CreateExpenseEntryAction"
name="expenseEntryForm" scope="session" validate="false"
input="/WEB-INF/jsp/expenseEntry.jsp">
<forward name="success" path="/WEB-INF/jsp/expenseEntry.jsp" />
<forward name="invalid" path="/WEB-INF/jsp/expenseEntry.jsp" />
<forward name="list" path="/WEB-INF/jsp/expenseList.jsp" />
<forward name="approvallist" path="/expenseApproval.htm?action=list" redirect="true" />
</action>
<action path="/expenseApproval"
type="com.patni.temgt.web.ExpenseApprovalAction"
name="expenseEntryForm" scope="session" validate="false"
input="/WEB-INF/jsp/expenseApprovalList.jsp">
<forward name="approvallist" path="/WEB-INF/jsp/expenseApprovalList.jsp" />
</action>
<action path="/adminCostingCode"
type="com.patni.temgt.web.AdminCostingCodeAction"
name="adminCostingCodeForm" scope="session" validate="false"
input="/WEB-INF/jsp/adminCostingCode.jsp">
<forward name="success" path="/WEB-INF/jsp/adminCostingCode.jsp" />
<forward name="invalid" path="/WEB-INF/jsp/adminCostingCode.jsp" />
</action>
<action path="/login"
type="com.patni.temgt.web.LoginAction"
name="loginForm" scope="session" validate="false"
input="/WEB-INF/jsp/login.jsp">
<forward name="mainPage" redirect="true"
path="/settleMain.htm" />
</action>
<action path="/settleMain"
type="com.patni.temgt.web.SettleMainAction">
<forward name="success" path="/WEB-INF/jsp/settleMain.jsp" />
</action>
<action path="/adminEnvironmentVariable"
type="com.patni.temgt.web.AdminEnvironmentVariableAction"
name="adminEnvironmentVariableForm" scope="session"
input="/WEB-INF/jsp/adminEnvironmentVariable.jsp">
<forward name="success"
path="/WEB-INF/jsp/adminEnvironmentVariable.jsp" />
<forward name="invalid"
path="/WEB-INF/jsp/adminEnvironmentVariable.jsp" />
</action>
<action path="/adminEmployee"
type="com.patni.temgt.web.AdminEmployeeAction"
name="adminEmployeeForm" scope="request"
input="/WEB-INF/jsp/adminEmployee.jsp">
<forward name="success" path="/WEB-INF/jsp/adminEmployee.jsp" />
<forward name="invalid" path="/WEB-INF/jsp/adminEmployee.jsp" />
</action>
<action path="/adminContactDetail"
type="com.patni.temgt.web.AdminContactDetailAction"
name="adminContactDetailForm" scope="request"
input="/WEB-INF/jsp/adminContactDetail.jsp">
<forward name="employee" path="/adminEmployee.htm" />
<forward name="company" path="/adminCompany.htm" />
<forward name="success" path="/WEB-INF/jsp/adminContactDetail.jsp" />
<forward name="invalid" path="/WEB-INF/jsp/adminContactDetail.jsp" />
</action>
<action path="/adminApplicationUser"
type="com.patni.temgt.web.AdminApplicationUserAction"
name="adminApplicationUserForm" scope="request"
input="/WEB-INF/jsp/adminApplicationUser.jsp">
<forward name="success" path="/WEB-INF/jsp/adminApplicationUser.jsp" />
<forward name="invalid" path="/WEB-INF/jsp/adminApplicationUser.jsp" />
</action>
<action path="/adminUserRole"
type="com.patni.temgt.web.AdminUserRoleAction"
name="adminUserRoleForm" scope="request"
input="/WEB-INF/jsp/adminUserRole.jsp">
<forward name="success" path="/WEB-INF/jsp/adminUserRole.jsp" />
<forward name="invalid" path="/WEB-INF/jsp/adminUserRole.jsp" />
</action>
<action path="/timeEntryReporting"
type="com.patni.temgt.web.TimeEntryReportAction"
name="timeEntryReportForm" scope="request"
input="/WEB-INF/jsp/timeEntryReporting.jsp">
<forward name="success" path="/WEB-INF/jsp/timeEntryReporting.jsp" />
<forward name="invalid" path="/WEB-INF/jsp/timeEntryReporting.jsp" />
</action>
<action path="/myCostingCodes"
type="com.patni.temgt.web.MyCostingCodeAction"
name="myCostingCodeForm" scope="request"
input="/WEB-INF/jsp/myCostingCodes.jsp" parameter="method">
<forward name="success" path="/WEB-INF/jsp/myCostingCodes.jsp" />
<forward name="invalid" path="/WEB-INF/jsp/myCostingCodes.jsp" />
</action>
</action-mappings>
<controller>
<set-property property="processorClass"
value="org.springframework.web.struts.DelegatingRequestProcessor" />
</controller>
<!-- ========== Message Resources Definitions =========================== -->
<!-- Will look for a properties file
com.patni.temgt.web.ApplicationResources.properties" -->
<message-resources
parameter="com.patni.temgt.web.ApplicationResources" />
<!-- Start the Spring Web Context plugin for Struts -->
<plug-in
className="org.springframework.web.struts.ContextLoaderPlugIn">
<set-property property="contextConfigLocation"
value="/WEB-INF/action-servlet.xml" />
</plug-in>
这可能是什么原因？