有哪位老大能说一说 IllegalStateException ,

[yxq1984]

我在Tomcat上有一个页面第一次打开时出现这个异常,
哪位高人知道产生的全体原因!
IllegalStateException in: R(/jsp/ris/ReqInfoStatistic.jsp + null) C
urrent state = FLUSHED, new state = CODING

[Arias]

你的页面有吗？

还有你的页面设置了限定吗？建议利用一个简单页面测试一下你的tomcat server

如果没有问题的话，就检查你自己的页面吧！

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[yxq1984]

其实是一个servlet
代码如下:
/* ============================================================================
* POP-Station Software
* Copyright (c) 2004-, Modern Co., Ltd. All rights reserved.
* ============================================================================
* ClassName: ReqInfoServlet
*
* Function : this servlet is order to switch and deal with request data
*
* History :
*
* 2004/04/15 Xiqiang Yin: [PPST256]Create class
* ============================================================================
*/
package imo.popst.ris;

import java.net.URL;
import java.io.IOException;
import java.sql.SQLException;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpUtils;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import java.util.*;

import imo.popst.order.*;
import imo.popst.cmn.*;
import org.apache.log4j.Category;

/**
*
* @author
* @version 0.1
*/
public class ReqInfoServlet extends HttpServlet {
static Category log = Category.getInstance(ReqInfoServlet.class.getName());
private String ET = "(enter)";

/**
* init張棟
*/
public void init(ServletConfig config) throws ServletException {
super.init(config);
String MN = "init";
log.info(MN+ET);
}

/**
* HTTP Get 儕僋僄僗僩偺張棟
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String MN = "doGet";
log.info(MN+ET);

doPost( request, response );

log.info( MN+"/exit" );
}

/**
* HTTP Post 儕僋僄僗僩偺張棟
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String MN = "doPost()";
log.info(MN+ET);

Login login = Login.getLogin(request);
if( login == null ) {
String msg = "Login忣曬偑庢摼偱偒傑偣傫偱偟偨丅嵞儘僌僀儞偟偰偔偩偝偄丅";
Msg.Disp( request, response, new MsgPack(MsgPack.FATAL,msg) );
return;
}
ServletContext sc = getServletContext();
String nextPage = "";
HttpSession session = request.getSession(true);

// ActionModel am = new ActionModel();
ActionModel am = null;
am = (ActionModel)session.getAttribute("ConFigModel");
// System.out.println(MN+"model is "+am);
if(am == null){
log.error(MN+"ConfFigModel is null inside session");
return;
}

nextPage = am.getParam1();
log.debug(MN+" Action Type is:" + am.getType());

if((am.getType()).equals("REQINFOLIST")){
getReqInfoList(request,response,am);
}
else if ((am.getType()).equals ("REQINFOVIEW")){
viewReqInfo(request);
}
else if ((am.getType()).equals ("REQINFOPAGE")){
pagingReqInfo(request);
}
else if ((am.getType()).equals ("REQINFOLISTSORT")){
nextPage = am.getParam1();
}
else if ((am.getType()).equals("REQINFOCREATE") ) {
reqInfoCreate(request);
}
else if ((am.getType()).equals("REQINFOSAVEMODIFICATION")) {
reqInfoSaveModification(request);
}
else if ((am.getType()).equals("NOASSOCIATEDREQUESTS")) {
notAssoRequests(request);
}
else if ((am.getType()).equals("REQINFOSTATISTIC")) {
statisticReqInfo(request);
}
else if ((am.getType()).equals("REQCONVERTTOORDER")) {
convertReqToOrder(request);
}
else if ((am.getType()).equals("ASSOCIATEDORDERINFO")) {
assoOrderInfo(request);
}
else if ((am.getType()).equals("CUTASSOCIATION") ) {
cutAssociation(request);
}
else if ((am.getType()).equals("NOASSOCIATEDORDERS") ) {
notAssoOrder(request);
}
else if ((am.getType()).equals("ASSOCIATEORDER")) {
associateOrder(request);
}
else if ((am.getType()).equals ("REQINFOEDIT")) {//Edit certain Request.

ReqInfoModel model = editReqInfo(request);
ReqInfoDbacc reqDb = new ReqInfoDbacc ();
if (reqDb.canBeEdited(model)) {
nextPage = am.getParam1();
}
else {//need to redirect to note page
log.error(MN+"/Error: The request can't be edited");
return;
}

}//if((am.getType()).equals ("REQINFOEDIT"))
//Redirect to page
log.info(MN+"ActionType is:" + am.getType() + ".\nAnd nextPage is:"+nextPage);
if (nextPage == null) {
nextPage = "";
}
if (nextPage.equals("")) {
log.error(MN+"/Error: Can't get next step's page. Please check the configuration");
return;
}
sc.getRequestDispatcher(nextPage).forward(request,response);
}//doPost

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