《基于J2EE Struts框架的課程設(shè)計(jì)實(shí)訓(xùn)項(xiàng)目——BBS論壇系統(tǒng)——構(gòu)建控制層中實(shí)現(xiàn)頁(yè)面跳轉(zhuǎn)的 Action程序類》由會(huì)員分享，可在線閱讀，更多相關(guān)《基于J2EE Struts框架的課程設(shè)計(jì)實(shí)訓(xùn)項(xiàng)目——BBS論壇系統(tǒng)——構(gòu)建控制層中實(shí)現(xiàn)頁(yè)面跳轉(zhuǎn)的 Action程序類（29頁(yè)珍藏版）》請(qǐng)?jiān)谘b配圖網(wǎng)上搜索。
1、楊教授大學(xué)堂 精心創(chuàng)作的優(yōu)秀程序員 職業(yè)提升必讀系列資料基于J2EE Struts框架的課程設(shè)計(jì)實(shí)訓(xùn)項(xiàng)目BBS論壇系統(tǒng)構(gòu)建控制層中實(shí)現(xiàn)頁(yè)面跳轉(zhuǎn)的 Action程序類1.1.1 頁(yè)面跳轉(zhuǎn)的 Action程序類PageForwordAction1、添加一個(gè)實(shí)現(xiàn)頁(yè)面跳轉(zhuǎn)的 Action類PageForwordAction（1）新建一個(gè)Action類1) Path為/pageForwordAction2) 基類：org.apache.struts.actions.DispatchAction3) 類型：com.px1987.webbbs.action.PageForwordAction4) /WebB
2、BS/WebRoot/WEB-INF/struts-config_pageForward.xml（2）并在parameter中輸入action（3）并為它添加各個(gè) Forward目標(biāo)（4）也就是下面的狀態(tài) 2、編程該Action類package com.px1987.webbbs.action;import java.io.UnsupportedEncodingException;import java.util.ArrayList;import javax.servlet.ServletContext;import javax.servlet.http.HttpServletRequest;
3、import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpSession;import org.apache.struts.action.ActionForm;import org.apache.struts.action.ActionForward;import org.apache.struts.action.ActionMapping;import org.apache.struts.actions.DispatchAction;import org.apache.struts.validato
4、r.DynaValidatorForm;import com.px1987.webbbs.constant.WebBankAllConstants;import com.px1987.webbbs.exception.WebBBSException;import com.px1987.webbbs.model.BBSInfoManageInterface;import com.px1987.webbbs.model.BBSInfoVO;import com.px1987.webbbs.model.BBSTitleVO;import com.px1987.webbbs.model.UserInf
5、oManageInterface;import com.px1987.webbbs.model.UserInfoVO;public class PageForwordAction extends DispatchAction BBSInfoManageInterface bbsInfoManagerBean=null;UserInfoManageInterface userInfoManageBean=null;public void setBbsInfoManagerBean(BBSInfoManageInterface bbsInfoManagerBean) this.bbsInfoMan
6、agerBean = bbsInfoManagerBean;public void setUserInfoManageBean(UserInfoManageInterface userInfoManageBean) this.userInfoManageBean = userInfoManageBean;public PageForwordAction() /本構(gòu)造方法是在利用 Spring IOC獲得目標(biāo)對(duì)象時(shí)被應(yīng)用super();/* String bbsInfoManageBeanClassName=null;String userInfoManageBeanClassName=null
7、;public PageForwordAction() throws WebBBSException /本構(gòu)造方法是在利用 可配置化的工廠時(shí)被應(yīng)用super();newUserAndBBSManageBean();public void newUserAndBBSManageBean() throws WebBBSExceptionbbsInfoManageBeanClassName=ClassNameConfig.getProperty(bbsInfoManageImple.className);bbsInfoManagerBean=BBSInfoManageFactory.newBBSIn
8、foManageBean(bbsInfoManageBeanClassName);userInfoManageBeanClassName=ClassNameConfig.getProperty(userInfoManageImple.className);userInfoManageBean=UserInfoManageFactory.newUserInfoManageBean(userInfoManageBeanClassName);*/public ActionForward indexShowPattern_BarMethod(ActionMapping mapping, ActionF
9、orm form,HttpServletRequest request, HttpServletResponse response)return mapping.findForward(showIndexContent_BarMethod);public ActionForward indexShowPattern_PlainMethod(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response)return mapping.findForward(showIn
10、dexContent_PlainMethod);public ActionForward indexLeftMenuBar(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response)return mapping.findForward(showIndexLeftMenuBar);public ActionForward indexSwitchMenu(ActionMapping mapping, ActionForm form,HttpServletReques
11、t request, HttpServletResponse response)return mapping.findForward(showIndexSwitchMenu);public ActionForward indexDefaultContent(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response)return mapping.findForward(showIndexDefaultContent);public ActionForward sh
12、owIndexContent(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response)ArrayList titleInfoVOArrayList_10 = null;ArrayList allHothitsBBSInfoVOArrayList = null;int totalCounterOfTitleInfo;int totalCounterOfTodayBBSInfo;int titleCounte=10;/只返回前10個(gè)分類元素對(duì)象try/newUse
13、rAndBBSManageBean();/創(chuàng)建用戶和BBS信息管理業(yè)務(wù)類的對(duì)象實(shí)例titleInfoVOArrayList_10 = bbsInfoManagerBean.doGetBBSTitleInfo(titleCounte); catch (WebBBSException e) request.setAttribute(errorText, 出現(xiàn)如下的錯(cuò)誤： +e.getMessage(); return mapping.findForward(showWebAppError);/獲得總的分類數(shù)目trytotalCounterOfTitleInfo = bbsInfoManagerBe
14、an.doGetTotalBBSTitleInfoCounter(); catch (WebBBSException e)request.setAttribute(errorText, 出現(xiàn)如下的錯(cuò)誤： +e.getMessage(); return mapping.findForward(showWebAppError);int hitBBSCounte=10;/只返回前10個(gè)熱門的BBS信息tryallHothitsBBSInfoVOArrayList = bbsInfoManagerBean.doGetBBSInfoByHits(hitBBSCounte); catch (WebBBSE
15、xception e)request.setAttribute(errorText, 出現(xiàn)如下的錯(cuò)誤： +e.getMessage(); return mapping.findForward(showWebAppError);/* 下面的代碼是獲得今日帖數(shù)目*/ ArrayList newBBSInfoList = null; String keyText = ; java.util.Date rightNow = new java.util.Date(); keyText = (1900 + rightNow.getYear() + - + (rightNow.getMonth() + 1)
16、 + - + rightNow.getDate();/* try/此時(shí)在ArrayList中將包含有今天的新貼（BBSInfoVO類型）的對(duì)象集合 newBBSInfoList = bbsInfoManageImple.doGetTodayAllBBSInfo(); catch (WebBBSException e)request.setAttribute(errorText, 出現(xiàn)如下的錯(cuò)誤： +e.getMessage();oneRequestDispatcher=request.getRequestDispatcher(/errorDeal/showWebAppError.jsp); o
17、neRequestDispatcher.forward(request, response); return; totalCounterOfTodayBBSInfo = newBBSInfoList.size();*/ try totalCounterOfTodayBBSInfo =bbsInfoManagerBean.doGetTodayAllBBSInfoCount(); catch (WebBBSException e)request.setAttribute(errorText, 出現(xiàn)如下的錯(cuò)誤： +e.getMessage(); return mapping.findForward(
18、showWebAppError); int totalBBSInfoCounter = 0; try totalBBSInfoCounter = bbsInfoManagerBean.doGetTotalBBSInfoCounter(); catch (WebBBSException e)request.setAttribute(errorText, 出現(xiàn)如下的錯(cuò)誤： +e.getMessage(); return mapping.findForward(showWebAppError); int totalUserCounter = 0; try totalUserCounter = use
19、rInfoManageBean.doGetTotalRegisterUserCounter(); catch (WebBBSException e)request.setAttribute(errorText, 出現(xiàn)如下的錯(cuò)誤： +e.getMessage(); return mapping.findForward(showWebAppError); UserInfoVO oneMaxIDUserInfoVO = null; try oneMaxIDUserInfoVO = userInfoManageBean.doGetMaxIDUserInfo(); catch (WebBBSExcept
20、ion e)request.setAttribute(errorText, 出現(xiàn)如下的錯(cuò)誤： +e.getMessage(); return mapping.findForward(showWebAppError); request.setAttribute(oneMaxIDUserInfoVO, oneMaxIDUserInfoVO); request.setAttribute(totalUserCounter, new Integer(totalUserCounter).toString(); request.setAttribute(totalBBSInfoCounter, new In
21、teger(totalBBSInfoCounter).toString(); request.setAttribute(titleInfoVOArrayList_10, titleInfoVOArrayList_10); request.setAttribute(totalCounterOfTitleInfo, new Integer(totalCounterOfTitleInfo). toString(); request.setAttribute(totalCounterOfTodayBBSInfo, new Integer(totalCounterOfTodayBBSInfo). toS
22、tring(); request.setAttribute(allHothitsBBSInfoVOArrayList,allHothitsBBSInfoVOArrayList);return mapping.findForward(showIndexContent);public ActionForward showRegisterForm(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response)this.saveToken(request); /(1)ret
23、urn mapping.findForward(showRegisterForm);public ActionForward showUserLogoutForDWR(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response) HttpSession session=request.getSession(); session.removeAttribute(oneUserInfoVO); session.invalidate(); return null;pub
24、lic ActionForward showUserLogout(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response) HttpSession session=request.getSession(); session.removeAttribute(oneUserInfoVO);/ session.invalidate(); request.setAttribute(errorText,您已經(jīng)從本系統(tǒng)中在線退出，因此您將失除所有的權(quán)限。如果您還需要做其它
25、的行為，請(qǐng)重新登錄！); return mapping.findForward(showWebAppError);public ActionForward showUpdateUserInfo(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response) String targetPage=null; HttpSession session=request.getSession();/下面為跳轉(zhuǎn)到修改用戶的信息的頁(yè)面中 Object oneUserInfoVOOb
26、ject=session.getAttribute(oneUserInfoVO); UserInfoVO oneUserInfoVO=(UserInfoVO)oneUserInfoVOObject; Integer type_User_Admin=oneUserInfoVO.getType_User_Admin(); switch(type_User_Admin.intValue() case 1: /轉(zhuǎn)到前臺(tái)用戶 targetPage=showUpdateUserInfo; break; case 2: /轉(zhuǎn)到后臺(tái)管理員用戶 targetPage=showUpdateAdminUserInf
27、o; break; return mapping.findForward(targetPage);public ActionForward doShowOnLineUserInfo(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response) return mapping.findForward(showOnLineUserInfo);public ActionForward doGetUserPassWord(ActionMapping mapping, Act
28、ionForm form,HttpServletRequest request, HttpServletResponse response) return mapping.findForward(doGetUserPassWord);public ActionForward goSendOrPreView(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response) HttpSession session = request.getSession();UserIn
29、foVO oneUserInfoVO=(UserInfoVO)session.getAttribute(oneUserInfoVO);String userName=oneUserInfoVO.getUserName();String userID=oneUserInfoVO.getId();DynaValidatorForm pageForwordActionForm = (DynaValidatorForm) form;String bbsTitleID=(String)pageForwordActionForm.get(bbsTitleID);String bbsTitleText=(S
30、tring)pageForwordActionForm.get(bbsTitleText);try /*由于bbsTitleText參數(shù)是通過(guò)get方法傳遞來(lái)的，因此ActionServlet無(wú)法進(jìn)行正確遞編碼轉(zhuǎn)換，需要手動(dòng)轉(zhuǎn)換*/bbsTitleText=new String(bbsTitleText.getBytes(ISO-8859-1),gb2312); catch (UnsupportedEncodingException e)request.setAttribute(errorText, 在PageForwordAction類中showDigestBBSInfo方法出現(xiàn)如下的錯(cuò)誤：
31、 +e.getMessage(); return mapping.findForward(showWebAppError);request.setAttribute(userName,userName);request.setAttribute(userID,userID);request.setAttribute(bbsTitleID,bbsTitleID);request.setAttribute(bbsTitleText,bbsTitleText);return mapping.findForward(doSendBBSInfo);public ActionForward goReply
32、OrPreView(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response) HttpSession session = request.getSession();UserInfoVO oneUserInfoVO=(UserInfoVO)session.getAttribute(oneUserInfoVO);String userName=oneUserInfoVO.getUserName();String userID=oneUserInfoVO.getId
33、();DynaValidatorForm pageForwordActionForm = (DynaValidatorForm) form;String bbsTitleID=(String)pageForwordActionForm.get(bbsTitleID);String bbsTitleText=(String)pageForwordActionForm.get(bbsTitleText);String bbsID=(String)pageForwordActionForm.get(bbsID);String bbsTitle=(String)pageForwordActionFor
34、m.get(bbsTitle);try /*由于bbsTitleText參數(shù)是通過(guò)get方法傳遞來(lái)的，因此ActionServlet無(wú)法進(jìn)行正確遞編碼轉(zhuǎn)換，需要手動(dòng)轉(zhuǎn)換*/bbsTitleText=new String(bbsTitleText.getBytes(ISO-8859-1),gb2312); catch (UnsupportedEncodingException e)request.setAttribute(errorText, 在PageForwordAction類中showDigestBBSInfo方法出現(xiàn)如下的錯(cuò)誤： +e.getMessage(); return mappi
35、ng.findForward(showWebAppError);request.setAttribute(userName,userName);request.setAttribute(userID,userID);request.setAttribute(bbsTitle,bbsTitle);request.setAttribute(bbsID,bbsID);request.setAttribute(bbsTitleID,bbsTitleID);request.setAttribute(bbsTitleText,bbsTitleText);return mapping.findForward
36、(doReplyBBSInfo);public ActionForward doSystemManage(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response) return mapping.findForward(doSystemManage);public ActionForward doReplyBBSInfo(ActionMapping mapping, ActionForm form,HttpServletRequest request, Http
37、ServletResponse response)return mapping.findForward(doReplyBBSInfo);public ActionForward showAllClassInfo(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response) /newUserAndBBSManageBean();/創(chuàng)建用戶和BBS信息管理業(yè)務(wù)類的對(duì)象實(shí)例ArrayList allBBSTitleVOArrayList=null;tryallBBSTi
38、tleVOArrayList=bbsInfoManagerBean.doGetBBSTitleInfo();catch(WebBBSException e) request.setAttribute(errorText, 出現(xiàn)如下的錯(cuò)誤： +e.getMessage(); return mapping.findForward(showWebAppError);request.setAttribute(allBBSTitleVOArrayList,allBBSTitleVOArrayList);return mapping.findForward(showAllBBSClassInfo);pub
39、lic ActionForward showAllHotBBSInfo(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response) ArrayList allBBSInfoVOList = null;int totalBBSInfoCounter, totalBBSInfoPageCounter;/newUserAndBBSManageBean();/創(chuàng)建用戶和BBS信息管理業(yè)務(wù)類的對(duì)象實(shí)例try /獲得總數(shù) int hotCounter=1; totalBBS
40、InfoCounter = bbsInfoManagerBean.doGetTotalHotBBSInfoCounter(hotCounter); catch (WebBBSException e) request.setAttribute(errorText, 出現(xiàn)如下的錯(cuò)誤： +e.getMessage(); return mapping.findForward(showWebAppError);if(totalBBSInfoCounter=0)request.setAttribute(errorText, 很對(duì)不起！目前系統(tǒng)中還沒(méi)有產(chǎn)生熱門信息帖，我們會(huì)繼續(xù)努力的！); return m
41、apping.findForward(showWebAppError); int currentPage = 1; /當(dāng)前正在顯示的頁(yè)數(shù)目 int firstResult = (currentPage - 1) * WebBankAllConstants.hotBBSCounterPerPageDigit; /根據(jù)當(dāng)前的頁(yè)數(shù)計(jì)算出的開(kāi)始的行號(hào)（從0 計(jì)數(shù)） totalBBSInfoPageCounter = (totalBBSInfoCounter + WebBankAllConstants.hotBBSCounterPerPageDigit - 1) /WebBankAllConstants
42、.hotBBSCounterPerPageDigit; int actualHotBBSCounterPerPageDigit=WebBankAllConstants.hotBBSCounterPerPageDigit; if (totalBBSInfoCounter WebBankAllConstants.hotBBSCounterPerPageDigit) actualHotBBSCounterPerPageDigit = totalBBSInfoCounter; tryallBBSInfoVOList = bbsInfoManagerBean.doGetBBSInfoByHits(fir
43、stResult,actualHotBBSCounterPerPageDigit);catch (WebBBSException e) request.setAttribute(errorText, 出現(xiàn)如下的錯(cuò)誤： +e.getMessage(); return mapping.findForward(showWebAppError);request.setAttribute(allBBSInfoVOList, allBBSInfoVOList);request.setAttribute(totalBBSInfoPageCounter,new Integer(totalBBSInfoPage
44、Counter).toString();request.setAttribute(currentPage, new Integer(currentPage).toString();return mapping.findForward(showAllHotBBSInfo);public ActionForward showAllBBSInClass(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response)ArrayList allBBSInfoVOList =
45、null;int totalBBSInfoCounter, totalBBSInfoPageCounter;/* * 本功能是通過(guò)get提交的請(qǐng)求，因此不能通過(guò)DynaValidatorForm獲得請(qǐng)求的參數(shù)，而只能通過(guò)request */String bbsTitleID=request.getParameter(bbsTitleID);String bbsTitleText=request.getParameter(bbsTitleText);try /*由于bbsTitleText參數(shù)是通過(guò)get方法傳遞來(lái)的，因此ActionServlet無(wú)法進(jìn)行正確遞編碼轉(zhuǎn)換，需要手動(dòng)轉(zhuǎn)換*/bbsT
46、itleText=new String(bbsTitleText.getBytes(ISO-8859-1),gb2312); catch (UnsupportedEncodingException e) request.setAttribute(errorText, 在PageForwordAction類中showAllBBSInClass方法出現(xiàn)如下的錯(cuò)誤： +e.getMessage(); return mapping.findForward(showWebAppError);/newUserAndBBSManageBean();/創(chuàng)建用戶和BBS信息管理業(yè)務(wù)類的對(duì)象實(shí)例try /獲得總數(shù)
47、 totalBBSInfoCounter = bbsInfoManagerBean.doGetPageTotalBBSInfoCounterByTitleID(Integer.parseInt(bbsTitleID); catch (WebBBSException e) request.setAttribute(errorText, 出現(xiàn)如下的錯(cuò)誤： +e.getMessage(); return mapping.findForward(showWebAppError); int currentPage = 1; /當(dāng)前正在顯示的頁(yè)數(shù)目/根據(jù)當(dāng)前的頁(yè)數(shù)計(jì)算出的開(kāi)始的行號(hào)（從0 計(jì)數(shù)） int
48、firstResult = (currentPage - 1) * WebBankAllConstants.objectCounterPerPageDigit; totalBBSInfoPageCounter = (totalBBSInfoCounter + WebBankAllConstants.objectCounterPerPageDigit - 1) /WebBankAllConstants.objectCounterPerPageDigit; int actualHotBBSCounterPerPageDigit=WebBankAllConstants.hotBBSCounterPe
49、rPageDigit; if (totalBBSInfoCounter WebBankAllConstants.hotBBSCounterPerPageDigit) actualHotBBSCounterPerPageDigit = totalBBSInfoCounter; try allBBSInfoVOList = bbsInfoManagerBean.doGetPageBBSInfoByTitleID(Integer.parseInt(bbsTitleID), firstResult,actualHotBBSCounterPerPageDigit);catch (WebBBSExcept
50、ion e) request.setAttribute(errorText, 出現(xiàn)如下的錯(cuò)誤： +e.getMessage(); return mapping.findForward(showWebAppError);/下面的代碼是獲得該分類的完整信息（也包括版主信息）BBSTitleVO oneBBSTitleVO = null;try oneBBSTitleVO = bbsInfoManagerBean.doGetBBSTitleInfoByTitleID(Integer.parseInt(bbsTitleID);catch (WebBBSException e) request.setA
51、ttribute(errorText, 出現(xiàn)如下的錯(cuò)誤： +e.getMessage(); return mapping.findForward(showWebAppError);request.setAttribute(allBBSInfoVOList, allBBSInfoVOList);request.setAttribute(bbsTitleID, bbsTitleID);request.setAttribute(bbsTitleText, bbsTitleText);request.setAttribute(oneBBSTitleVO, oneBBSTitleVO);request.
52、setAttribute(totalBBSInfoPageCounter,new Integer(totalBBSInfoPageCounter).toString();request.setAttribute(currentPage, new Integer(currentPage).toString();return mapping.findForward(showAllBBSInClass);public ActionForward showOneBBSInfo(ActionMapping mapping, ActionForm form,HttpServletRequest reque
53、st, HttpServletResponse response) BBSInfoVO oneBBSInfoVO = null; ArrayList allBBSReplyInfoListByOneBBS = null; DynaValidatorForm pageForwordActionForm = (DynaValidatorForm) form;String bbsID=(String)pageForwordActionForm.get(bbsID);/獲得該BBS的ID號(hào)/獲得該BBS所在的分類的標(biāo)題文字String bbsTitleText=(String)pageForwordActionForm.get(bbsTitleText); /獲得該BBS所在的分類的ID String bbsTitleID=(String)pageForwordActionForm.
基于J2EE Struts框架的課程設(shè)計(jì)實(shí)訓(xùn)項(xiàng)目——BBS論壇系統(tǒng)——構(gòu)建控制層中實(shí)現(xiàn)頁(yè)面跳轉(zhuǎn)的 Action程序類
