构建于J2EEWebServlet组件技术的控制层.docx

基于Struts+Spring+JDBC架构的课程设计实训教学示例项目网上银行账户管理系统构建基于J2EE Web Servlet组件技术的控制层杨教授大学堂 精心创作的优秀程序员 职业提升必读系列资料 基于Struts+Spring+JDBC架构的课程设计实训教学示例项目网上银行账户管理系统构建基于J2EE Web Servlet组件技术的控制层(第4/4部分) 1.1.1 构建控制层中的帐户信息管理的Servlet组件 1、AccountInfoManageServlet (1)包名称为com.px1987.webbank.servlet，并且继承于HttpServlet类 (2)设置该URL-Pattern为/accountInfoManage.action 杨教授大学堂，版权所有，盗版必究。 1/24页 杨教授大学堂 精心创作的优秀程序员 职业提升必读系列资料 (3)编程该AccountInfoManageServlet类 package com.px1987.webbank.servlet; import java.io.IOException; import java.util.ArrayList; import java.util.Date; import javax.servlet.RequestDispatcher; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import mons.validator.GenericValidator; import org.springframework.context.ApplicationContext; import org.springframework.web.context.support.WebApplicationContextUtils; 杨教授大学堂，版权所有，盗版必究。 2/24页 杨教授大学堂 精心创作的优秀程序员 职业提升必读系列资料 import com.px1987.webbank.actionform.AccountInfoActionForm; import com.px1987.webbank.config.TargetPageNameConfig; import com.px1987.webbank.constant.WebBankAllConstants; import com.px1987.webbank.exception.WebBankException; import com.px1987.webbank.model.UserInfoManageImpleFacade; import com.px1987.webbank.model.vo.AccountInfoVO; import com.px1987.webbank.model.vo.PageStateVO_Prototype; import com.px1987.webbank.model.vo.UserInfoVO; import com.px1987.webbank.util.MD5JavaBean; public class AccountInfoManageServlet extends HttpServlet private static final long serialVersionUID = -7697781505332777183L; String forwardShowWebAppError=null; String showWebAppErrorAndReturn=null; String forwardShowInfoAndGotoTarget=null; ApplicationContext applicationContext=null; public AccountInfoManageServlet() super(); public void destroy() super.destroy(); public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException /*下面是获得请求的类型并相应地跳转到目标处理方法中* String action=request.getParameter(action); if(action.equals(forwardTargetPage_ShowMeAccount) forwardTargetPage_ShowMeAccount(request, response); else if(action.equals(forwardTargetPageUserID_newAccountInfo) forwardTargetPageUserID_newAccountInfo(request, response); 杨教授大学堂，版权所有，盗版必究。 3/24页 杨教授大学堂 精心创作的优秀程序员 职业提升必读系列资料 else if(action.equals(forwardTargetPageUserID_getOutSomeMoney) forwardTargetPageUserID_getOutSomeMoney(request, response); else if(action.equals(forwardTargetPageUserID_transmitAccount) forwardTargetPageUserID_transmitAccount(request, response); public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException AccountInfoActionForm oneAccountInfo=doGetAccountInfoFormData(request); /*下面是获得请求的类型并相应地跳转到目标处理方法中* if(oneAccountInfo.getAction().equals(doAddNewAccountInfo) forwardDoAddNewAccountInfo(request, response,oneAccountInfo); if(oneAccountInfo.getAction().equals(doGetOutMoney) forwardDoGetOutMoney(request, response,oneAccountInfo); if(oneAccountInfo.getAction().equals(doTransmitAccount) forwardDoTransmitAccount(request, response,oneAccountInfo); public void forwardDoTransmitAccount(HttpServletRequest request, HttpServletResponse response, AccountInfoActionForm oneAccountInfo) throws ServletException, IOException boolean okOrNot=false; UserInfoManageImpleFacade oneUserInfoManageImpleFacade=null; String userID=oneAccountInfo.getUserID(); String outPutAccountID=oneAccountInfo.getOutPutAccountID(); String inPutAccountID=oneAccountInfo.getInPutAccountID(); String balance=oneAccountInfo.getBalance(); 杨教授大学堂，版权所有，盗版必究。 4/24页 杨教授大学堂 精心创作的优秀程序员 职业提升必读系列资料 String userName=oneAccountInfo.getUserName(); /下面识别转帐金额是否小于帐户内的存款 try /没有将J2EE Web与Spring相互整合之前的实现方法 / oneUserInfoManageImpleFacade=new UserInfoManageImpleFacade(); applicationContext= WebApplicationContextUtils.getWebApplicationContext(this.getServletContext(); oneUserInfoManageImpleFacade=(UserInfoManageImpleFacade)applicationContext.getBean(oneUserInfoManageImpleFacade); okOrNot=oneUserInfoManageImpleFacade.doCheckBalanceAmountValue(balance, outPutAccountID); catch (WebBankException e) request.setAttribute(errorText, e.getMessage(); rwardShowWebAppError= TargetPageNameConfig.getProperty(forwardShowWebAppError); RequestDispatcher oneRequestDispatcher= request.getRequestDispatcher(forwardShowWebAppError); oneRequestDispatcher.forward(request, response); return; if(!okOrNot) request.setAttribute(targetURLPage, /pageForwordAction.action?action=forwardTransmitAccount); request.setAttribute(showInfoText,userName+您好!您的转出帐户:+outPutAccountID+中的资金不足够); forwardShowInfoAndGotoTarget= TargetPageNameConfig.getProperty(forwardShowInfoAndGotoTarget); RequestDispatcher oneRequestDispatcher= request.getRequestDispatcher(forwardShowInfoAndGotoTarget); 杨教授大学堂，版权所有，盗版必究。 5/24页 杨教授大学堂 精心创作的优秀程序员 职业提升必读系列资料 oneRequestDispatcher.forward(request, response); return; /下面的代码是具体实现转帐 try okOrNot=oneUserInfoManageImpleFacade.doTransferAccount(outPutAccountID, inPutAccountID, Float.parseFloat(balance); catch (WebBankException e) request.setAttribute(errorText, e.getMessage(); forwardShowWebAppError= TargetPageNameConfig.getProperty(forwardShowWebAppError); RequestDispatcher oneRequestDispatcher= request.getRequestDispatcher(forwardShowWebAppError); oneRequestDispatcher.forward(request, response); return; if(!okOrNot) request.setAttribute(errorText, userName+您好!您对转出帐户:+outPutAccountID+的转帐行为没有成功); forwardShowWebAppError= TargetPageNameConfig.getProperty(forwardShowWebAppError); RequestDispatcher oneRequestDispatcher= request.getRequestDispatcher(forwardShowWebAppError); oneRequestDispatcher.forward(request, response); return; /一旦转帐成功，将根据该用户的ID获得其各个帐户信息 ArrayList onePageAccountInfoVOArrayList=null; PageStateVO_Prototype onePageStateVO_Prototype=null; 杨教授大学堂，版权所有，盗版必究。 6/24页 杨教授大学堂 精心创作的优秀程序员 职业提升必读系列资料 String firstPageNumber=1; try onePageStateVO_Prototype=new PageStateVO_Prototype(); onePageStateVO_Prototype.setThisPageNumber(Integer.parseInt(firstPageNumber); /根据该用户的ID获得其各个帐户信息(但只取出第一页的数据) onePageStateVO_Prototype.setPageSize(WebBankAllConstants.webServiceManage_pageSize); onePageAccountInfoVOArrayList=oneUserInfoManageImpleFacade.doGetOnePageAccountInfoByUserID(onePageStateVO_Prototype,userID); catch(WebBankException e) request.setAttribute(errorText, e.getMessage(); forwardShowWebAppError= TargetPageNameConfig.getProperty(forwardShowWebAppError); RequestDispatcher oneRequestDispatcher= request.getRequestDispatcher(forwardShowWebAppError); oneRequestDispatcher.forward(request, response); return; request.setAttribute(onePageAccountInfoVOArrayList,onePageAccountInfoVOArrayList); request.setAttribute(onePageStateVO_Prototype,onePageStateVO_Prototype); request.setAttribute(currentPageNumber,new Integer(onePageStateVO_Prototype.getThisPageNumber().toString(); String forwardShowMeAccountInfo= TargetPageNameConfig.getProperty(forwardShowMeAccountInfo); RequestDispatcher oneRequestDispatcher= request.getRequestDispatcher(forwardShowMeAccountInfo); oneRequestDispatcher.forward(request, response); return; /跳转到显示其各个帐户信息的页面 杨教授大学堂，版权所有，盗版必究。 7/24页 杨教授大学堂 精心创作的优秀程序员 职业提升必读系列资料 /* 下面的各个方法是针对 用户的帐户进行分页控制的各个方法* public void forwardTargetPageUserID_getOutSomeMoney(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException UserInfoManageImpleFacade oneUserInfoManageImpleFacade=null; /获得用户所输入的页数 String targetPageNumber=request.getParameter(targetPage); HttpSession session=request.getSession(); /获得保存在session中的用户信息(会话跟踪) UserInfoVO oneUserInfoVOInSession= (UserInfoVO)session.getAttribute(oneUserInfoVO); ArrayList onePageAccountInfoVOArrayList=null; PageStateVO_Prototype onePageStateVO_Prototype=null; try onePageStateVO_Prototype=new PageStateVO_Prototype(); onePageStateVO_Prototype.setThisPageNumber(Integer.parseInt(targetPageNumber); onePageStateVO_Prototype.setPageSize(WebBankAllConstants.webServiceManage_pageSize); /没有将J2EE Web与Spring相互整合之前的实现方法 / oneUserInfoManageImpleFacade=new UserInfoManageImpleFacade(); applicationContext= WebApplicationContextUtils.getWebApplicationContext(this.getServletContext(); oneUserInfoManageImpleFacade=(UserInfoManageImpleFacade)applicationContext.getBean(oneUserInfoManageImpleFacade); onePageAccountInfoVOArrayList=oneUserInfoManageImpleFacade.doGetOnePageAccountInfoByUserID(onePageStateVO_Prototype,oneUserInfoVOInSession.getId(); catch(WebBankException e) request.setAttribute(errorText, e.getMessage(); rwardShowWebAppError= TargetPageNameConfig.getProperty(forwardShowWebAppError); RequestDispatcher oneRequestDispatcher= 杨教授大学堂，版权所有，盗版必究。 8/24页 杨教授大学堂 精心创作的优秀程序员 职业提升必读系列资料 request.getRequestDispatcher(forwardShowWebAppError); oneRequestDispatcher.forward(request, response); return; request.setAttribute(onePageAccountInfoVOArrayList,onePageAccountInfoVOArrayList); request.setAttribute(onePageStateVO_Prototype,onePageStateVO_Prototype); request.setAttribute(currentPageNumber,new Integer(onePageStateVO_Prototype.getThisPageNumber().toString(); String forwardGetOutSomeMoney= TargetPageNameConfig.getProperty(forwardGetOutSomeMoney); RequestDispatcher oneRequestDispatcher= request.getRequestDispatcher(forwardGetOutSomeMoney); oneRequestDispatcher.forward(request, response); return; /跳转到继续取钱信息的页面 public void forwardDoGetOutMoney(HttpServletRequest request, HttpServletResponse response,AccountInfoActionForm oneAccountInfo) throws ServletException, IOException boolean okOrNot=false; UserInfoManageImpleFacade oneUserInfoManageImpleFacade=null; String userID=oneAccountInfo.getUserID(); String accountInfo_ActionType=oneAccountInfo.getAccountInfo_ActionType(); String accountID=oneAccountInfo.getAccountID(); String idCard=oneAccountInfo.getIdCard(); String balance=oneAccountInfo.getBalance(); String userPassWord=oneAccountInfo.getUserPassWord(); /* try /没有将J2EE Web与Spring相互整合之前的实现方法 oneUserInfoManageImpleFacade=new UserInfoManageImpleFacade(); 杨教授大学堂，版权所有，盗版必究。 9/24页 杨教授大学堂 精心创作的优秀程序员 职业提升必读系列资料 catch (WebBankException e) request.setAttribute(errorText, e.getMessage(); rwardShowWebAppError= TargetPageNameConfig.getProperty(forwardShowWebAppError); RequestDispatcher oneRequestDispatcher= request.getRequestDispatcher(forwardShowWebAppError); oneRequestDispatcher.forward(request, response); return; */ applicationContext= WebApplicationContextUtils.getWebApplicationContext(this.getServletContext(); oneUserInfoManageImpleFacade= (UserInfoManageImpleFacade)applicationContext.getBean(oneUserInfoManageImpleFacade); switch(Integer.parseInt(accountInfo_ActionType) case 1: /取出款额 try okOrNot=oneUserInfoManageImpleFacade.doGetOutSomeMoneyToOneAccount(accountID, Float.parseFloat(balance); catch(WebBankException e) request.setAttribute(errorText, e.getMessage(); ardShowWebAppError= TargetPageNameConfig.getProperty(forwardShowWebAppError); RequestDispatcher oneRequestDispatcher= request.getRequestDispatcher(forwardShowWebAppError); oneRequestDispatcher.forward(request, response); return; if(!okOrNot) 杨教授大学堂，版权所有，盗版必究。 10/24页 杨教授大学堂 精心创作的优秀程序员 职业提升必读系列资料 request.setAttribute(errorText, 您对帐户:+accountID+的取款行为没有成功，请与管理员联系); WebAppErrorAndReturn= TargetPageNameConfig.getProperty(showWebAppErrorAndReturn); RequestDispatcher oneRequestDispatcher= request.getRequestDispatcher(showWebAppErrorAndReturn); oneRequestDispatcher.forward(request, response); return; break; case 2: /销毁帐户 try okOrNot=oneUserInfoManageImpleFacade.doDeleteOneAccountInfo(accountID); catch(WebBankException e) request.setAttribute(errorText, e.getMessage(); wardShowWebAppError= TargetPageNameConfig.getProperty(forwardShowWebAppError); RequestDispatcher oneRequestDispatcher= request.getRequestDispatcher(forwardShowWebAppError); oneRequestDispatcher.forward(request, response); return; if(!okOrNot) request.setAttribute(errorText, 您对帐户:+accountID+的销户行为没有成功，请与管理员联系); WebAppErrorAndReturn= TargetPageNameConfig.getProperty(showWebAppErrorAndReturn); RequestDispatcher oneRequestDispatcher= request.getRequestDispatcher(showWebAppErrorAndReturn); 杨教授大学堂，版权所有，盗版必究。 11/24页 杨教授大学堂 精心创作的优秀程序员 职业提升必读系列资料 oneRequestDispatcher.forward(request, response); return; break; ArrayList onePageAccountInfoVOArrayList=null; PageStateVO_Prototype onePageStateVO_Prototype=null; String firstPageNumber=1; try onePageStateVO_Prototype=new PageStateVO_Prototype(); onePageStateVO_Prototype.setThisPageNumber(Integer.parseInt(firstPageNumber); /根据该用户的ID获得其各个帐户信息(但只取出第一页的数据) onePageStateVO_Prototype.setPageSize(WebBankAllConstants.webServiceManage_pageSize); onePageAccountInfoVOArrayList=oneUserInfoManageImpleFacade.doGetOnePageAccountInfoByUserID(onePageStateVO_Prototype,userID); catch(WebBankException e) request.setAttribute(errorText, e.getMessage(); rwardShowWebAppError= TargetPageNameConfig.getProperty(forwardShowWebAppError); RequestDispatcher oneRequestDispatcher= request.getRequestDispatcher(forwardShowWebAppError); oneRequestDispatcher.forward(request, response); return; request.setAttribute(onePageAccountInfoVOArrayList,onePageAccountInfoVOArrayList); request.setAttribute(onePageStateVO_Prototype,onePageStateVO_Prototype); request.setAttribute(currentPageNumber,new 杨教授大学堂，版权所有，盗版必究。 12/24页 杨教授大学堂 精心创作的优秀程序员 职业提升必读系列资料 Integer(onePageStateVO_Prototype.getThisPageNumber().toString(); String forwardShowMeAccountInfo= TargetPageNameConfig.getProperty(forwardShowMeAccountInfo); RequestDispatcher oneRequestDispatcher= request.getRequestDispatcher(forwardShowMeAccountInfo); oneRequestDispatcher.forward(request, response); return; public void forwardDoAddNewAccountInfo(HttpServletRequest request, HttpServletResponse response,AccountInfoActionForm oneAccountInfo) hrows ServletException, IOException boolean okOrNot=false; UserInfoManageImpleFacade oneUserInfoManageImpleFacade=null; String balance=oneAccountInfo.getBalance(); String idCard=oneAccountInfo.getIdCard(); String userID=oneAccountInfo.getUserID(); String userPassWord=oneAccountInfo.getUserPassWord(); String state=oneAccountInfo.getState(); int savingMonth=oneAccountInfo.getSavingMonth(); String accountID=oneAccountInfo.getAccountID(); String accountInfo_ActionType=oneAccountInfo.getAccountInfo_ActionType(); AccountInfoVO oneAccountInfoVO=null; switch(Integer.parseInt(accountInfo_ActionType) case 1: /开设帐户 oneAccountInfoVO=new AccountInfoVO(); Date oneDate=new Date(); oneAccountInfoVO.setAccountID(new Long(oneDate.getTime().toString(); oneAccountInfoVO.setPassword(new MD5JavaBean().getkeyBeanofStr(userPassWord); oneAccountInfoVO.setState(state); 杨教授大学堂，版权所有，盗版必究。 13/24页 杨教授大学堂 精心创作的优秀程序员 职业提升必读系列资料 oneAccountInfoVO.setBalance(Float.parseFloat(balance); oneAccountInfoVO.setStartTime(new java.sql.Date(oneDate.getYear(),oneDate.getMonth(),oneDate.getDate(); oneAccountInfoVO.setSavingMonth(new Integer(savingMonth); oneAccountInfoVO.setIdCard(idCard); oneAccountInfoVO.setUserID(userID); break; case 2: /追加存款 break; /* try oneUserInfoManageImpleFacade=new UserInfoManageImpleFacade(); /没有将J2EE Web与Spring相互整合之前的实现方法 catch (WebBankException e) request.setAttribute(errorText, e.getMessage(); rwardShowWebAppError= TargetPageNameConfig.getProperty(forwardShowWebAppError); RequestDispatcher oneRequestDispatcher= request.getRequestDispatcher(forwardShowWebAppError); oneRequestDispatcher.forward(request, response); return; */ plicationContext= WebApplicationContextUtils.getWebApplicationContext(this.getServletContext(); oneUserInfoManageImpleFacade=(UserInfoManageImpleFacade)applicationContext.getBean(oneUserInfoManageImpleFacade); switch(Integer.parseInt(accountInfo_ActionType) 杨教授大学堂，版权所有，盗版必究。 14/24页 杨教授大学堂 精心创作的优秀程序员 职业提升必读系列资料 case 1: try okOrNot=oneUserInfoManageImpleFacade.doCreateOneAccountInfo(oneAccountInfoVO); catch(WebBankException e) request.setAttribute(errorText, e.getMessage(); ardShowWebAppError= TargetPageNameConfig.getProperty(forwardShowWebAppError); RequestDispatcher oneRequestDispatcher= request.getRequestDispatcher(forwardShowWebAppError); oneRequestDispatcher.forward(request, response); return; if(!okOrNot) request.setAttribute(errorText, 您的开户行为没有成功，请与管理员联系); WebAppErrorAndReturn= TargetPageNameConfig.getProperty(showWebAppErrorAndReturn); RequestDispatcher oneRequestDispatcher= request.getRequestDispatcher(showWebAppErrorAndReturn); oneRequestDispatcher.forward(request, response); return; break; case 2: try okOrNot=oneUserInfoManageImpleFacade.doAddSomeMoneyToOneAccount(accountID,Float.parseFloat(balance); catch(WebBankException e) 杨教授大学堂，版权所有，盗版必究。 15/24页 杨教授大学堂 精心创作的优秀程序员 职业提升必读系列资料 request.setAttribute(errorText, e.getMessage(); ardShowWebAppError= TargetPageNameConfig.getProperty(forwardShowWebAppError); RequestDispatcher oneRequestDispatcher= reques