struts:form-bean无法获取页面表单数据

关于这个struts验证有两种情况，其一是添加一个project的验证，其二为修改一个project。具体执行步骤如下。
steps:
if add a new project:
1.URL: projectAction1.do?method=initUpdateProject
2.display project_detail.jsp, fill form data
3.submit(projectAction2.do?method=submitUpdateProject&projectID) and the system prompt validation error: project code and name is requered, and the project code and name input box are empty now.
Actually the fields were filled in data before submiting. I think the form data on the page are not populated into the form bean normally.if modify an existed project:
1.URL: projectAction1.do?method=initUpdateProject&projectId=***
2.project_detail.jsp, and the exsited data from the form bean displayed well on the page
3.change the page data
4.submit(projectAction2.do?method=submitUpdateProject&projectID=***)
and the system prompt error:
"HTTP Status 400 - Request[/projectAction2] does not contain handler parameter named method
--------------------------------------------------------------------------------
type Status report
message Request[/projectAction2] does not contain handler parameter named method
description The request sent by the client was syntactically incorrect (Request[/projectAction2] does not contain handler parameter named method)."
and at the now, the URL become: projectAction.do?emptymsg=+can+not+be+empty&spacemsg=+can+not+has+space&digitmsg=+should+be+digit&maxlengthmsg=%27s+maximum+length+is+&minlengthmsg=%27s+minimum+length+is+&exactlengthmsg=null&negativemsg=+can+not+be+negative&telephonemsg=Telephone+format+is+invalid&zipcodemsg=Zipcode+format+is+invalid&mobilemsg=Mobile+format+is+invalid&emailmsg=E-mail+address+format+error&comparemsg=+does+not+match&dateformatmsg=Date+format+should+be+&timeformatmsg=Time+format+should+be+&dateinvalidmsg=+is+not+a+valid+date%2Ftime&dismatchmsg=+is+not+correct&selectmsg=+At+least+choose+&choosemsg=+Please+choose+one+&faxmsg=Fax+format+is+invalid&positivemsg=+must+be+positive&percentagemsg=+must+between+0+and+100&integermsg=+must+be+integer
不知道为什么“projectAction2.do?method=submitUpdateProject&projectID=***”会变成上述的url？
以下分别列出struts-config.xml,action form，action，jsp, validation.xml中与之相关部分的内容。struts-config:
<form-bean name="projectActionForm" type="com.ProjectActionForm" /> <action name="projectActionForm" type="com.ProjectAction"   validate="false" parameter="method" path="/projectAction1">
  <forward name="update_project" path="/project_detail.jsp"/>
  <forward name="submit_project" path="/projectAction.do?method=initProjectList" redirect = "true"/>
  <forward name="message" path="/message.jsp" />
</action>

<action name="projectActionForm" type="com.ProjectAction" scope="session" validate="true" input="/project_detail.jsp" parameter="method" path="/projectAction2">
  <forward name="update_project" path="/project_detail.jsp"/>
  <forward name="submit_project" path="/projectAction.do?method=initProjectList" redirect = "true"/>
  <forward name="message" path="/message.jsp" />
</action>
action form:
public class ProjectActionForm extends ValidatorForm {

    private String projectCode;
    private String projectName;

    public void setprojectCode(String projectCode) {
        this.projectCode = projectCode;
    }    public String getprojectCode() {
        return projectCode;
    }    public void setprojectName(String projectName) {
        this.projectName = projectName;
    }    public String getprojectName() {
        return projectName;
    }        public void reset(ActionMapping actionMapping, HttpServletRequest httpServletRequest) {
    }
}action:
public class ProjectAction extends DispatchAction {

    ......


    public ActionForward initUpdateProject(
            ActionMapping mapping,
            ActionForm actionForm,
            HttpServletRequest request,
            HttpServletResponse response)
            throws Exception {

         ......
            TO fill data from database to action form
            ......

            return mapping.findForward("update_project");
    }



    public ActionForward submitUpdateProject(
            ActionMapping mapping,
            ActionForm actionForm,
            HttpServletRequest request,
            HttpServletResponse response)
            throws Exception {

            ......
            TO get data from form bean
            ......

            return mapping.findForward("submit_project");
    }


    ......}project_detail.jsp:
......
<html:form method="post" action="projectAction.do?method=submitUpdateProject">
    <table width="100%" border="0" cellspacing="0" cellpadding="0">
            <tr>
              <td width="62%">
               <input name="originalProjCode" type="hidden" class="box"  value="<%=strProjectCode%>">
               <html:text name="projectActionForm" property="projectCode" maxlength="50" />
              </td>
            </tr>
            <tr>
              <td width="62%">
<html:text name="projectActionForm" property="projectName" maxlength="255" />
              </td>
            </tr>

            <tr valign="bottom">
              <td height="40" colspan="3" align="center">
               <c:if test="${projectID!=null}">
                       <a href="javascript:modifyProject(document.forms[0],<%=strProjectID%>)"><img src="save.gif" ></a>
               </c:if>
<c:if test="${projectID==null}">
                       <a href="javascript:addProject(document.forms[0])"><img src="add.gif" ></a>
               </c:if>
              </td>
            </tr>
   </table>
</html:form>
......
<script language="Javascript">
function modifyProject(frm,projectID)
{
frm.action="projectAction2.do?method=submitUpdateProject&projectID="+projectID;
frm.submit();
}

function addCommonProject(frm)
{
frm.action="projectAction2.do?method=submitUpdateProject";
frm.submit();
}
</script>
......validation.xml:
<form    name="projectActionForm">
<field    property="projectCode"
             depends="required">
               <arg0 key="validate.projectCode"/>
         </field>
<field    property="projectName"
             depends="required">
               <arg0 key="validate.projectName"/>
         </field>
</form>
<html:form method="post" action="projectAction.do?method=submitUpdateProject">中的projectAction.do应该是projectAction1.do吧，你页面中的action和config中的path没对应好

调试易

struts:form-bean无法获取页面表单数据

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