任務(wù)7.3會(huì)員充值功能的實(shí)現(xiàn)Java物聯(lián)網(wǎng)應(yīng)用程序開發(fā)01020304任務(wù)描述任務(wù)分析任務(wù)實(shí)施任務(wù)小結(jié)任務(wù)描述任務(wù)描述任務(wù)描述本任務(wù)要求能夠通過點(diǎn)擊主頁(yè)面會(huì)員管理菜單的會(huì)員充值菜單項(xiàng)，彈出會(huì)員充值對(duì)話框，并在對(duì)話框中填入要充值的會(huì)員信息和充值的金額，點(diǎn)擊“確定”按鈕，更新該會(huì)員的余額到數(shù)據(jù)庫(kù)中。任務(wù)分析任務(wù)分析任務(wù)分析使用彈出“會(huì)員充值”對(duì)話框來查看當(dāng)前會(huì)員卡內(nèi)余額以及充值金額。對(duì)話框UI分析：對(duì)話框整體使用Dialog控件對(duì)話框內(nèi)容使用GridPane涉及的控件有:Label、TextField、Button任務(wù)實(shí)施任務(wù)實(shí)施任務(wù)實(shí)施實(shí)施步驟：1、DAO封裝2、自定義會(huì)員充值對(duì)話框3、調(diào)用顯示會(huì)員充值對(duì)話框4、運(yùn)行應(yīng)用程序任務(wù)實(shí)施實(shí)施步驟1、DAO封裝（1）會(huì)員實(shí)體類封裝會(huì)員類，類中的成員變量參考數(shù)據(jù)庫(kù)會(huì)員表的字段。publicclassMember{privateStringmemberId;//會(huì)員編號(hào)privateStringmemberName;//會(huì)員名稱privateStringmemberPassword;//會(huì)員密碼privatedoublememberMoney;//卡內(nèi)金額privateStringtelephone;//電話號(hào)碼privateStringmemberLevel;//會(huì)員等級(jí)：分為銅牌會(huì)員、銀牌會(huì)員、金牌會(huì)員、鉆石會(huì)員四個(gè)等級(jí)，默認(rèn)銅牌會(huì)員privateintmemberDiscount;//會(huì)員折扣privatedoubletotalMoney;//消費(fèi)總額privateStringstatement;//會(huì)員說明

//省略構(gòu)造方法//省略Setter與Getter方法}任務(wù)實(shí)施實(shí)施步驟1、DAO封裝（2）會(huì)員DAO接口繼承BaseDao的基礎(chǔ)上進(jìn)行拓展,其中BaseDao提供基礎(chǔ)的增刪改查。publicinterfaceBaseDao<T>{//添加數(shù)據(jù)intadd(Tentity);//刪除數(shù)據(jù)intdelete(StringentityId);//修改數(shù)據(jù)intupdate(Tentity);//查詢所有數(shù)據(jù)List<T>getAll();}publicinterfaceMemberDaoextendsBaseDao<Member>{//更新會(huì)員余額intupdateMemberMoney(StringmemberId,doublenewMoney);//更新會(huì)員余額和消費(fèi)intupdateMemberMoneyAndCost(StringmemberId,doublenewMoney,doublecost);//通過會(huì)員編號(hào)獲取會(huì)員信息Memberget(StringmemberId);}任務(wù)實(shí)施實(shí)施步驟1、DAO封裝（3）會(huì)員DAO實(shí)現(xiàn)類會(huì)員DAO實(shí)現(xiàn)類即對(duì)會(huì)員的各種操作進(jìn)行實(shí)現(xiàn)，例如會(huì)員充值的操作。任務(wù)實(shí)施實(shí)施步驟2、自定義會(huì)員充值對(duì)話框（1）定義會(huì)員管理服務(wù)類MemberService定義會(huì)員管理服務(wù)類MemberService，在類中定義會(huì)員管理MemberDao對(duì)象，并在構(gòu)造方法中初始化會(huì)員管理的Dao對(duì)象，方便后面會(huì)員信息的增刪改查等操作。任務(wù)實(shí)施實(shí)施步驟2、自定義會(huì)員充值對(duì)話框（2）定義會(huì)員充值對(duì)話框方法在MemberService中定義顯示會(huì)員修改對(duì)話框的方法showMemberRechargeDialog。任務(wù)實(shí)施實(shí)施步驟2、自定義會(huì)員充值對(duì)話框（3）創(chuàng)建對(duì)話框在showMemberRechargeDialog方法中創(chuàng)建對(duì)話框Dialog，設(shè)置對(duì)話框標(biāo)題為“會(huì)員充值”，對(duì)話框添加“確定”和“取消”按鈕。任務(wù)實(shí)施實(shí)施步驟2、自定義會(huì)員修改對(duì)話框（4）創(chuàng)建網(wǎng)格布局，并加入到對(duì)話框面板中類似會(huì)員修改對(duì)話框，在showMemberRechargeDialog方法中創(chuàng)建網(wǎng)格布局GridPane，并將相關(guān)會(huì)員信息的控件加入到GridPane對(duì)象中，并將GridPane對(duì)象加入到對(duì)話框面板中。任務(wù)實(shí)施實(shí)施步驟2、自定義會(huì)員修改對(duì)話框（5）注冊(cè)“會(huì)員卡號(hào)”輸入框焦點(diǎn)監(jiān)聽器在showMemberRechargeDialog方法中注冊(cè)“會(huì)員卡號(hào)”輸入框焦點(diǎn)監(jiān)聽器，當(dāng)輸入完成“會(huì)員卡號(hào)”內(nèi)容，點(diǎn)擊其他控件（即“會(huì)員卡號(hào)”輸入框失去焦點(diǎn)）時(shí)，查詢會(huì)員信息，并填充內(nèi)容到對(duì)應(yīng)的控件中。任務(wù)實(shí)施實(shí)施步驟2、自定義會(huì)員修改對(duì)話框（6）處理點(diǎn)擊對(duì)話框“確定”按鈕效果點(diǎn)擊對(duì)話框的“確定”按鈕時(shí)，需要將對(duì)話框中會(huì)員信息以及充值的金額加入到會(huì)員的卡內(nèi)余額中組裝成會(huì)員對(duì)象，修改數(shù)據(jù)庫(kù)會(huì)員表中對(duì)應(yīng)“會(huì)員卡號(hào)”的數(shù)據(jù)。任務(wù)實(shí)施實(shí)施步驟3、調(diào)用顯示會(huì)員修改對(duì)話框方法在MainController中的“會(huì)員充值”菜單項(xiàng)點(diǎn)擊處理的回調(diào)方法onMenuMemberRechargeClick中調(diào)用memberService對(duì)象的showMemberRechargeDialog顯示會(huì)員充值對(duì)話框方法。任務(wù)實(shí)施實(shí)施步驟4、運(yùn)行應(yīng)用程序運(yùn)行應(yīng)用程序，點(diǎn)擊“會(huì)員充值”菜單項(xiàng)，在彈出的對(duì)話框中填入“會(huì)員卡號(hào)”，并輸入充值的金額，點(diǎn)擊“確定”按鈕，完成修改。任務(wù)小結(jié)任務(wù)小結(jié)任務(wù)小結(jié)本任務(wù)使用彈出會(huì)員充值對(duì)話框形式，在對(duì)話框中對(duì)會(huì)員的金額進(jìn)行充值。點(diǎn)擊確定按鈕，將使用JDBC更新數(shù)據(jù)庫(kù)會(huì)員信息表中對(duì)應(yīng)會(huì)