使用struts开发,提交后出错java.lang.ClassCastException
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提交表单后,浏览器地址栏显示http://localhost:8080/news/NewsDirAdd.do;jsessionid=8D83E0DF757A2353F7F2FD809EC74CD6
? 页面中报错
? description The server encountered an internal error () that prevented it from fulfilling this request.
?
? exception
?
? java.lang.ClassCastException
? org.apache.struts.tiles.TilesRequestProcessor.initDefinitionsMapping(TilesRequestProcessor.java:84)
? org.apache.struts.tiles.TilesRequestProcessor.init(TilesRequestProcessor.java:75)
? org.apache.struts.action.ActionServlet.getRequestProcessor(ActionServlet.java:602)
? org.apache.struts.action.ActionServlet.process(ActionServlet.java:1192)
? org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
? javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
? javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
?
?
? note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.
?
?
? 请高人指点!!
? ---------------------------------------------------
?
? 〓环境: windows xp
? tomcat-5.0.28
? j2sdk-1_4_1_07
? struts-1.2.7
?
?
? 〓struts-config.xml
? ...
? <form-beans>
? <form-bean name="NewsDirAddForm" type="com.utsky.hbcz.form.NewsDirAddForm"/>
? </form-beans>
? ....
? <action-mappings>
? <action path="/NewsDirAdd" type="com.utsky.hbcz.action.NewsDirAddAction" name="NewsDirAddForm" scope="request" input="admin/newsdir/newsdir_add.jsp" />
? </action-mappings>
? ....
?
? 〓newsdir_add.jsp
? ...
? <html:form action="/NewsDirAdd" focus="name">
? 栏目名称: <html:text property="name" size="16"/>
? <html:submit>保存</html:submit >
? </html:form>
? ....
?
? 〓NewsDirAddForm.java
? public final class NewsDirAddAction extends Action {
? public ActionForward execute(ActionMapping mapping,
? ActionForm form, HttpServletRequest request, HttpServletResponse response)
? throws IOException, ServletException {
?
? String name = ((NewsDirAddForm) form).getName();
?
? System.out.print("ok!");
?
? return mapping.findForward("success");
? }
? }
------解决方法--------------------
public final class NewsDirAddAction extends Action {
? public ActionForward execute(ActionMapping mapping,
? ActionForm form, HttpServletRequest request, HttpServletResponse response)
? throws IOException, ServletException {
?
? String name = ((NewsDirAddForm) form).getName();
?
? System.out.print("ok!");
