課件課后練習代碼-經典案例

JavaStrutsNETCTOSS資費的分頁顯OGNL基本語ValueStack結重構NETCTOSS資費列表顯示（分頁版

圖-圖-

圖-圖-在你的myeclipse點中struts02_1工程，右鍵Properties，找到MyEclipse下的Web，顯示內如圖-5所示。找到webContext-root可以看到文本框中的名字還是struts01_2,而我們當前的工程名為struts02_1，所以修改webContext-root為struts02_1,這樣部署到tomcat下的工程名和myeclipse圖-packagepackageprivatestaticfinalStringfindAll"selectID,NAME,BASE_DURATION,BASE_COST,UNIT_COST,CREATIME,ST"selectrownumr,ID,NAME,BASE_DURATION,BASE_COST,UNIT_COST"wherea.r>?privatestaticfinalStringgetTotalPages="selectcount(*)fromCOST";

圖-classFeeDAOpublicintgetTotalPages(intpageSize)Connectioncon=PreparedStatementstmt=ResultSetrs=trycon=stmt=rs=inttotalRows=if(totalRows%pageSize==0)returntotalRows/}elsereturntotalRows/pageSize+}}catch(Exceptione)thrownew}finally{}}publicList<Fee>findAll(intpage,int{Connectioncon=PreparedStatementstmt=ResultSetrs=trycon=stmt=intbegin=(intend=stmt.setInt(1,stmt.setInt(2,rs=List<Fee>list=newwhile(rs.next())Feefee=new return}catch(Exceptione)thrownew}finally{}}}修改publicclassFeeListActionprivateprivateprivateList<Fee>feeList=intpage=1;inttotalPages;publicintgetTotalPages()return} publicvoidsetTotalPages(inttotalPages)

this.totalPages=}publicStringFeeDAOfeeDAO=newFeeDAO();feeList=feeDAO.findAll(page,3);totalPages=feeDAO.getTotalPages(3);return"success";}publicint{return}publicvoidsetPage(int{this.page=}publicList<Fee>{return}publicvoidsetFeeList(List<Fee>{this.feeList=}}修改<%@pagelanguage="java"pageEncoding="UTF-<%@taglib/jsp/jstl/core"<!DOCTYPEhtmlPUBLIC"-//W3C//DTDXHTML1.0Transitional//EN".<html<metahttp-equiv="Content-Type"content="text/html;charset=utf-<linktype="text/css"rel="stylesheet"media="all"<linktype="text/css"rel="stylesheet"media="all"<!--Logo<div<imgsrc="../images/logo.png"alt="logo"<ahref="#">[<!--Logo<!--導航區(qū)域開始--><div<ul <li><ahref="../index.html"<li><ahref="../role/role_list.html"<li><ahref="../admin/admin_list.html"<li><ahref="../fee/fee_list.html"<li><ahref="../account/account_list.html"<li><ahref="../service/service_list.html"<li><ahref="../bill/bill_list.html"<li><ahref="../report/report_list.html"<li><ahref="../user/user_info.html"<li><ahref="../user/user_modi_pwd.html"<!--導航區(qū)域結束--><!--主要區(qū)域開始--><div<formaction=""<!--排序--><div<inputtype="button"value="月租"<inputtype="button"value="基費"<inputtype="button"value="時長"<inputtype="button"value="增加"class="btn_add"<divid="operate_result_info"<imgsrc="../images/close.png"<div<table<th>資費<thclass="width100">資費名稱<th>基本時長<th>基本費用<th>單位費用<th>創(chuàng)建時間<th>開通時間<thclass="width50">狀態(tài)<th<c:forEachitems="${feeList}"<td>${fee.baseDuration}小時<td>${fee.baseCost}元<td>${fee.unitCost}元/小時<c:iftest="${fee.status==0}"<c:iftest="${fee.status==1}"<c:iftest="${fee.status==2}"<c:iftest="${fee.status!=0&&<inputtype="button"value=c<inputtype="button"value=c<inputtype="button"value=c<p>業(yè)務說明：<br/>1、創(chuàng)建資費時，狀態(tài)為暫停，記載創(chuàng)建時間；<br/>2、暫停狀態(tài)下，可修改，可刪除；<br/>34<!--分頁--><div<c:whentest="${page><ahref="feeList.action?page=${1}"><c:forEachvar="p"begin="1"end="${totalPages}"><c:whentest="${page==<ahref="feeList.action?page=${p}"<ahref="feeList.action?page=${p}">${p<c:whentest="${page<<ahref="feeList.action?page=${page+1}<!--主要區(qū)域結束--><div<p>[源自的技術，最優(yōu)秀的師資，最真實的企業(yè)環(huán)境，最適用的<p>(C)達內IT培訓公司，如圖-6圖-packageclassFeeDAOprivatestaticfinalStringfindAll"selectID,NAME,BASE_DURATION,BASE_COST,UNIT_COST,CREATIME,"selectrownumr,ID,NAME,BASE_DURATION,BASE_COST,"wherea.r>?privatestaticfinalStringgetTotalPages"selectcount(*)fromCOST";publicintgetTotalPages(intpageSize)Connectioncon=PreparedStatementstmt=ResultSetrs=trycon=stmt=rs=inttotalRows=if(totalRows%pageSize==0)returntotalRows/}elsereturntotalRows/pageSize+}}catch(Exceptione)thrownew}finally{ publicList<Fee>findAll(intpage,intpageSize)Connectioncon=PreparedStatementstmt=ResultSetrs=trycon=stmt=intbegin=(intend=stmt.setInt(1,stmt.setInt(2,rs=List<Fee>list=newwhile(rs.next())Feefee=new return}catch(Exceptione)thrownew}finally{ }publicclassFeeListActionprivateList<Fee>feeList=privateintpage=privateinttotalPages;publicintgetTotalPages()return publicvoidsetTotalPages(inttotalPages)this.totalPages= publicStringFeeDAOfeeDAO=newfeeList=totalPages=return publicintgetPage()return publicvoidsetPage(intpage)this.page= publicList<Fee>getFeeList()return publicvoidsetFeeList(List<Fee>feeList)this.feeList=}}<%@pagelanguage="java"pageEncoding="UTF-<%@taglib /jsp/jstl/core"<!DOCTYPEhtmlPUBLIC"-//W3C//DTDXHTML1.0Transitional//EN" <html <metahttp-equiv="Content-Type"content="text/html;charset=utf-<linktype="text/css"rel="stylesheet"media="all"<linktype="text/css"rel="stylesheet"media="all"<!--Logo<div<imgsrc="../images/logo.png"alt="logo"<ahref="#">[<!--Logo<!--導航區(qū)域開始--><div<ul <li><ahref="../index.html"<li><ahref="../role/role_list.html"<li><ahref="../admin/admin_list.html"<li><ahref="../fee/fee_list.html"<li><ahref="../account/account_list.html"<li><ahref="../service/service_list.html"<li><ahref="../bill/bill_list.html"<li><ahref="../report/report_list.html"<li><ahref="../user/user_info.html"<li><ahref="../user/user_modi_pwd.html"<!--導航區(qū)域結束--><!--主要區(qū)域開始--><div<formaction=""<!--排序--><div<inputvalue="<inputvalue="<inputvalue=" <inputtype="button"value="增加"class="btn_add" <divid="operate_result_info" <imgsrc="../images/close.png" <div <table <th>資費 <thclass="width100" <thclass="width50 <th <c:forEachitems="${feeList}" <td>${fee.baseDuration} <td>${fee.baseCost}元</ <td>${fee.unitCost}元/小時</<c:iftest="${fee.status==0}"<c:iftest="${fee.status==1}"<c:iftest="${fee.status==2}"<c:iftest="${fee.status!=0&&<inputtype="button"value=c<inputtype="button"value=c<inputtype="button"value=c<p>業(yè)務說明：<br/>1、創(chuàng)建資費時，狀態(tài)為暫停，記載創(chuàng)建時間；<br/>2、暫停狀態(tài)下，可修改，可刪除；<br/>34<!--分頁--><div<c:whentest="${page><ahref="feeList.action?page=${1}">上一頁<c:forEachvar="p"begin="1"<c:whentest="${page==<ahref="feeList.action?page=${p}"<ahref="feeList.action?page=${p}">${p<c:whentest="${page<<ahref="feeList.action?page=${page+1}<!--主要區(qū)域結束--><div<p>[源 公司1.4擴展。IntegergetId(){returnvoidsetId(Integerid){this.id=StringgetName(){returnvoidsetName(Stringname){=String[]getArry(){returnvoidsetArry(String[]arry){this.arry=List<String>getList(){returnvoidsetList(List<String>list){this.list=Map<String,String>getMap(){returnvoidsetMap(Map<String,String>map){this.map=}publicclassFooprivateprivateIntegerStringprivateString[]privateList<String>list;privateMap<String,String>map;3.新建類TestOgnl01.java，演示基本類型屬性，數組、List屬性，MappublicclassTestOgnl01publicstaticvoidmain(String[]args)throws{Foofoo=newfoo.setArry(newString[]{"one","two","three"foo.setList(Arrays.asList("A","B","C"));HashMap<String,String>map=newHashMap<String,map.put("one",map.put("two",map.put("three",/*Ognl引 *Ognl.getValue("OGNL表達式",root對象);//root對象是Ognl//1.基本類型屬性（包括System.out.println(Ognl.getValue("id",System.out.println(Ognl.getValue("name",//2.數組、List //3.Map System.out.println(Ognl.getValue("map['two']",//4.System.out.println(Ognl.getValue("id+100",System.out.println(Ognl.getValue("\"Whatis\"+name",System.out.println(Ognl.getValue("\"name:\"+name+\"id:\"System.out.println(Ognl.getValue("id>150",//5. System.out.println(Ognl.getValue("list.size()", Ognl.getValue("map['three'].lastIndexOf(name)",//6.//7.創(chuàng)建的ListObjectobj=Ognl.getValue("{1,2,3,4,5}",//8.創(chuàng)建的Mapobj="#{1:'java',2:'javajava',3:'javajavajava'}", 新建

圖-publicclassBarprivateStringpublicStringgetName(){returnpublicvoidsetName(Stringname){=}publicclassTestOgnl02publicstaticvoidmain(String[]args)throwsExceptionMap<String,Object>ctxnewHashMap<StringObject>();ctx.put("num",10);//rootBarroot=new}}圖-publicclassFooprivateprivateprivateprivateprivateIntegerStringname;String[]arry;List<String>list;Map<String,String>publicIntegergetId(){returnpublicvoidsetId(Integerid){this.id=id;}publicStringgetName(){returnname;}publicvoidsetName(Stringname){=name;}publicString[]getArry(){returnarry;}publicvoidsetArry(String[]arry){this.arry=arry;}publicList<String>getList(){returnlist;}publicvoidsetList(List<String>list){this.list=publicMap<String,String>getMap(){return publicvoidsetMap(Map<String,String>map){this.map=}}publicclassTestOgnl01publicstaticvoidmain(String[]args)throwsExceptionFoofoo=newFoo();foo.setArry(newString[]{"one","two","three"foo.setList(Arrays.asList("A","B",HashMap<String,String>mapnewHashMap<String,map.put("one",map.put("two",map.put("three",/*Ognl引 *Ognl.getValue("OGNL表達式",root對象);//root對象是Ognl//1.基本類型屬性（包括System.out.println(Ognl.getValue("id",System.out.println(Ognl.getValue("name",//2.數組、List//3.Map System.out.println(Ognl.getValue("map['two']",//4.System.out.println(Ognl.getValue("\"Whatis\"+name",System.out.println(Ognl.getValue("\"name:\"+name+\"id:\"System.out.println(Ognl.getValue("id>150",//5.System.out.println(Ognl.getValue("name.toUpperCase()",System.out.println(Ognl.getValue("list.size()",Ognl.getValue("map['three'].lastIndexOf(name)",//6.//7.創(chuàng)建的ListObjectobj=Ognl.getValue("{1,2,3,4,5}",//8.創(chuàng)建的Mapobj="#{1:'java',2:'javajava',3:'javajavajava'}","#{1:'java',2:'javajava',3:'javajavajava'}",}}publicclassBarprivateStringpublicStringgetName(){returnpublicvoidsetName(Stringname){=}} publicclassTestOgnl02publicstaticvoidmain(String[]args)throwsExceptionMap<String,Object>ctxnewHashMap<String,Object>();ctx.put("num",10);//rootBarroot=newBar();準備好Struts2開發(fā)環(huán)境a.新建web工程struts02_3packagepublicclassDebugActionprivateprivateprivateStringintid;String[]arry;publicStringexecute()name="java";id=100;return}publicintgetId(){returnpublicvoidsetId(intid){this.id=publicStringgetName(){returnpublicvoidsetName(Stringname){=}新建<?xmlversion="1.0"encoding="UTF-<!DOCTYPEstruts"-//ApacheSoftwareFoundation//DTDStrutsConfiguration"<packagename="valuestack"extends="struts-<actionname="debug"<resultname="success">/WEB-<%@pagepageEncoding="utf-<%@pageimport="java.util.*" Enumerationen= ement()+}//打印出Objectobj=request.getAttribute("struts.valueStack");out.println("<hr/>struts.valueStack對象：<br/>"+

圖-修改<%@pagepageEncoding="utf-<%@tagliburi="/struts-tags"Objectobj=<!--<s:debug8.,點擊[debug],顯示內容如圖-圖-通用的標記<s:propertyvalue=""/>Struts2自己定義的標記庫，用于valueStack，修<%@pagepageEncoding="utf-<%@tagliburi="/struts-tags"<!--struts2<s:propertyvalue=""/>標記通過OGNL--<h2><s:propertyvalue="name"/><h2><s:propertyvalue="id"<h2><s:propertypackagepublicclassDebugActionprivateprivateprivateStringintid;String[]arry;}publicintgetId(){returnpublicvoidsetId(intid){this.id=publicStringgetName(){returnpublicvoidsetName(Stringname){=name;}publicString[]getArry(){returnarry;}publicvoidsetArry(String[]arry){this.arry=}

圖-publicString{name=id=arry=new{"spring"return修改<%@pagepageEncoding="utf-<%@tagliburi="/struts-tags"<s:propertyvalue="name+'java'"<s:propertyvalue="arry[1].toUpperCase()"，結果如圖-12所示圖-publicclassDebugActionprivateprivateprivateStringintid;String[]arry;publicStringexecute()name="java";id=100;arry=newString[]"spring"};return}publicintgetId(){returnpublicvoidsetId(intid){this.id=publicStringgetName(){returnpublicvoidsetName(Stringname){=name;}publicString[]getArry(){returnarry;}publicvoidsetArry(String[]arry){this.arry=}<?xmlversion="1.0"encoding="UTF-<!DOCTYPEstruts"-//ApacheSoftwareFoundation//DTDStrutsConfiguration"<packagename="valuestack"extends="struts-<actionname="debug"<resultname="success">/WEB-</package><%@pagepageEncoding="utf-<%@tagliburi="/struts-tags"prefix="s"%> Objectobj= <!-- <s:debug<!--struts2通過標記 <s:propertyvalue=""/>標記通過OGNL表達 --<h2><s:propertyvalue="name"/></h2><h2><s:propertyvalue="id"<!--可在value屬性內做字符串拼接<s:propertyvalue="name+'java'"<!--可調用方法<s:propertyvalue="arry[1].toUpperCase()"a.<s:iteratorvalue=”ognl”>將onl指定的集合屬性循環(huán)迭代，在迭代中，將會當前元素壓入o棧頂位置,因此使用”屬性”格式nl，此時定位的是元素屬性，而不是ion屬性。Iar循環(huán)結束后，ain對象又恢復成棧頂，a變量在on區(qū)域，需要使用”變量”<%@pagelanguage="java"pageEncoding="UTF-<%@tagliburi="/struts-tags"<!DOCTYPEhtmlPUBLIC"-//W3C//DTDXHTML1.0Transitional//EN" <html <metahttp-equiv="Content-Type"content="text/html;charset=utf-<linktype="text/css"rel="stylesheet"media="all"<linktype="text/css"rel="stylesheet"media="all"<!--Logo<div<imgsrc="../images/logo.png"alt="logo"<ahref="#">[<!--Logo<!--導航區(qū)域開始--><div<ul <li><ahref="../index.html"<li><ahref="../role/role_list.html"<li><ahref="../admin/admin_list.html"<li><ahref="../fee/fee_list.html"<li><ahref="../account/account_list.html"<li><ahref="../service/service_list.html"<li><ahref="../bill/bill_list.html"<li><ahref="../report/report_list.html"<li><ahref="../user/user_info.html"<li><ahref="../user/user_modi_pwd.html"<!--導航區(qū)域結束--><!--主要區(qū)域開始--><div<formaction=""<!--排序--><div<inputtype="button"value="月租"<inputtype="button"value="基費"<inputtype="button"value="時長"<inputtype="button"value="增加"class="btn_add"<divid="operate_result_info"<imgsrc="../images/close.png"<div<table<th>資費<thclass="width100">資費名稱<th>基本時長<th>基本費用<th>單位費用<th>創(chuàng)建時間<th>開通時間<thclass="width50">狀態(tài)<th<s:iterator<td><s:propertyvalue="id"<td><s:propertyvalue="feeName"<td><s:propertyvalue="baseDuration"<td><s:propertyvalue="baseCost"<td><s:propertyvalue="unitCost"<td><s:propertyvalue="createTime"<td><s:propertyvalue="startTime"<s:iftest="status==0"><s:iftest="status==1"><s:iftest="status==2"><s:iftest="status!=0&&status!=<inputtype="button"value="啟用"<inputtype="button"value="修改"<inputtype="button"value="刪除"<p>業(yè)務說明：<br/>1、創(chuàng)建資費時，狀態(tài)為暫停，記載創(chuàng)建時間；<br/>2、暫停狀態(tài)下，可修改，可刪除；<br/>34<!--分頁--><div<s:iftest="page><ahref="feeList.action?page=${1}">上一頁</<s:iteratorvalue="newint[totalPages]"<s:iftest="#i.count==<ahref='feeList.action?page=<s:property<ahref='feeList.action?page=<s:property<s:iftest="page<<ahref="feeList.action?page=${page+1}">下一頁</<!--主要區(qū)域結束--><div<p>[源 公司<%@pagelanguage="java"pageEncoding="UTF-<%@tagliburi="/struts-tags"<!DOCTYPEhtmlPUBLIC"-//W3C//DTDXHTML1.0Transitional//EN".<html<metahttp-equiv="Content-Type"content="text/html;charset=utf-<linktype="text/css"rel="stylesheet"media="all"<linktype="text/css"rel="stylesheet"media="all"<!--Logo<div<imgsrc="../images/logo.png"alt="logo"<a