SSH框架开发起步的最好例子

**一、添加商品到购物车开发步骤：创建数据库表及进行反向工程创建购物车模型编写DAO层编写Service层编写Action层编写struts和Spring配置文件编写JSP页面具体操作如下：1.创建数据库表订单表（orders）,包含3个字段：orderid(订单编号),userid（用户表的关联字段）,orderdate（订单日期）谢谢阅读**订单项表（orderitem）,包含4个字段：orderitemid(订单项编号)，orderid(与订精品文档放心下载单表关联字段)，bookid(与图书表关联字段)，quantity（数量）谢谢阅读进行两张表的反向工程，生成响应的POJO和hbm.xml文件。精品文档放心下载创建购物车模型创建购物车模型购物车模型Cart**Cart.java代码如下：packagecom.sxjiang.bookstore.model;感谢阅读importjava.util.HashMap;importjava.util.Iterator;谢谢阅读importjava.util.Map;importcom.sxjiang.bookstore.vo.Orderitem;感谢阅读publicfinalclassCart{protectedMap<Integer,Orderitem>items;精品文档放心下载publicCart(){if(items==null){items=newHashMap<Integer,Orderitem>();感谢阅读}}publicvoidaddBook(Integerbookid,Orderitemorderitem){精品文档放心下载**if(items.containsKey("bookid")){精品文档放心下载Orderitem_orderitem=items.get(bookid);感谢阅读_orderitem.setQuantity(_orderitem.getOrderitemid()+orderite感谢阅读m.getQuantity());items.put(bookid,_orderitem);感谢阅读}else{items.put(bookid,orderitem);谢谢阅读}}publicvoidupdateCart(Integerbookid,intquantity){精品文档放心下载Orderitemorderitem=items.get(bookid);感谢阅读orderitem.setQuantity(quantity);谢谢阅读items.put(bookid,orderitem);感谢阅读}publicintgetTotalPrice(){精品文档放心下载inttotalPrice=0;for(Iteratorit=items.values().iterator();it.hasNext();){谢谢阅读Orderitemorderitem=(Orderitem)it.next();精品文档放心下载Bookbook=orderitem.getBook();谢谢阅读intquantity=orderitem.getQuantity();感谢阅读**totalPrice+=book.getPrice()*quantity;精品文档放心下载}returntotalPrice;}publicMap<Integer,Orderitem>getItems(){精品文档放心下载returnitems;}publicvoidsetItems(Map<Integer,Orderitem>items){感谢阅读this.items=items;}}3.DAODAO层主要的类为BaseDAO类，IBookDAO接口和BookDAO谢谢阅读类。在IBookDAO中定义了getBookById（）方法，通过这个方法可以根据id号，得到书的信精品文档放心下载息。BookDAO具体实现了这个接口。**修改IBookDAO.java，加上如下代码：publicBookgetBookById(Integerbookid);//根据图书号得到谢谢阅读图书修改BookDAO.java实现getBookById()方法publicBookgetBookById(Integerbookid){精品文档放心下载TODOAuto-generatedmethodstubSessionsession=getSession();感谢阅读Bookbook=(Book)session.get(Book.class,bookid);session.close();精品文档放心下载returnbook;}4.Service在IBookService接口中定义getBookById()，根据图书号获得图书,谢谢阅读**在BookService中实现此方法。修改IBookService.java，加上getBookById()的定义：谢谢阅读//根据图书号得到图书publicBookgetBookById(Integerbookid);精品文档放心下载修改BookService.java,实现getBookById()方法。publicBookgetBookById(Integerbookid){//TODOAuto-generatedmethodstubreturnbookDAO.getBookById(bookid);精品文档放心下载}5.Action创建ShoppingAction,通过addToCart()方法，完成将图书放入购物车中。谢谢阅读**ShoppingAction.java代码如下：packagecom.sxjiang.bookstore.action;importjava.util.Map;精品文档放心下载importcom.opensymphony.xwork2.ActionContext;精品文档放心下载importcom.opensymphony.xwork2.ActionSupport;精品文档放心下载importcom.sxjiang.bookstore.model.Cart;精品文档放心下载importcom.sxjiang.bookstore.service.IBookService;精品文档放心下载importcom.sxjiang.bookstore.vo.Book;精品文档放心下载importcom.sxjiang.bookstore.vo.Orderitem;精品文档放心下载publicclassShoppingActionextendsActionSupport{privateIntegerbookid;精品文档放心下载privateintquantity;privateIBookServicebookService;精品文档放心下载publicStringaddToCart()throwsException{Bookbook=bookService.getBookById(bookid);Orderitemorderitem=newOrderitem();orderitem.setBookid(book.getBookid());orderitem.setQuantity(quantity);谢谢阅读Mapsession=ActionContext.getContext().getSession();Cartcart=(Cart)session.get("cart");if(cart==null){谢谢阅读cart=newCart();**}cart.addBook(bookid,orderitem);感谢阅读session.put("cart",cart);returnSUCCESS;}publicStringupdateCart()throwsException{谢谢阅读Mapsession=ActionContext.getContext().getSession();Cartcart=(Cart)session.get("cart");cart.updateCart(bookid,quantity);session.put("cart",cart);谢谢阅读returnSUCCESS;}publicIntegergetBookid(){感谢阅读returnbookid;}publicvoidsetBookid(Integerbookid){谢谢阅读this.bookid=bookid;}publicintgetQuantity(){谢谢阅读returnquantity;}publicvoidsetQuantity(intquantity){感谢阅读**this.quantity=quantity;}publicIBookServicegetBookService(){returnbookService;}精品文档放心下载publicvoidsetBookService(IBookServicebookService){this.bookService=bookService;}精品文档放心下载}6.配置struts.xml和applicationContext.xml感谢阅读在struts.xml中增加名为：addToCart的Action代码如下：谢谢阅读<actionname="addToCart"class="shoppingAction"精品文档放心下载method="addToCart"><resultname="success">/addToCart_result.jsp</result></action>谢谢阅读在applicationContext.xml中增加shoppringAction的bean的配置精品文档放心下载<beanid="shoppingAction"class="com.sxjiang.bookstore.action.ShoppingAction">精品文档放心下载<propertyname="bookService"ref="bookService">感谢阅读</property></bean>**7.编写JSP页面修改browseBookPaging.jsp，代码如下：精品文档放心下载<%@pagelanguage="java"contentType="text/html;谢谢阅读charset=gb2312"pageEncoding="gb2312"%><%@taglibprefix="s"uri="/struts-tags"%>谢谢阅读<!DOCTYPEhtmlPUBLIC"-//W3C//DTDHTML4.01精品文档放心下载Transitional//EN""/TR/html4/loose.dtd">谢谢阅读<html><head><metahttp-equiv="Content-Type"content="text/html;charset=ISO-8859-1">感谢阅读<title>Inserttitlehere</title>感谢阅读</head><body><s:iteratorvalue="#request['books']"id="book"><imgsrc="/bookstore/picture/<s:propertyvalue="#book.picture"/>"精品文档放心下载width="100">书名:<s:propertyvalue="#book.bookname"/>精品文档放心下载价格:<s:propertyvalue="#book.price"/>元精品文档放心下载**<formaction="addToCart.action"method=""post">精品文档放心下载数量:<inputtype="text"name="quantity"value="0"谢谢阅读size="4"/><inputtype="hidden"value="<s:property感谢阅读value="#book.bookid"/>"name="bookid">谢谢阅读<inputtype="image"name="submit"感谢阅读src="/bookstore/picture/buy.gif"/>精品文档放心下载</form><br></s:iterator><s:setname="pager"value="#request.pager"/>感谢阅读<s:iftest="#pager.hasFirst">谢谢阅读<ahref="browseBookPaging.action?currentPage=1">首页感谢阅读</a></s:if><s:iftest="#pager.hasPrevious">精品文档放心下载<ahref="browseBookPaging.action?currentPage=<s:propertyvalue="#pager.current1"/>">精品文档放心下载上一页</a></s:if><s:iftest="#pager.hasNext">谢谢阅读**<ahref="browseBookPaging.action?currentPage=<s:propertyvalue="#pager.currentPage+1"/>">谢谢阅读下一页</a></s:if><s:iftest="#pager.hasLast">精品文档放心下载<ahref="browseBookPaging.action?currentPage=<s:propertyvalue="#pager.totalPage"/>">谢谢阅读尾页</a></s:if>当前第<s:propertyvalue="#pager.currentPage"/>页,总共谢谢阅读<s:propertyvalue="#pager.totalPage"/>页谢谢阅读</body></html>二、显示购物车开发步骤：ModelAction**Struts.xmlapplicationContext.xml精品文档放心下载JSP1.ModelCart模型中的updateCart方法用于更新购物车。感谢阅读修改Cart.java加入下列代码：publicvoidupdateCart(Integerbookid,intquantity){谢谢阅读Orderitemorderitem=items.get(bookid);orderitem.setQuantity(quantity);items.put(bookid,orderitem);}谢谢阅读2.ActionShoppingAction中的UpdateCart用于完成更新购物车的功能。修改shoppingAction.java感谢阅读publicStringupdateCart()throwsException{精品文档放心下载Mapsession=ActionContext.getContext ().getSession();谢谢阅读Cartcart=(Cart)session.get("cart");谢谢阅读cart.updateCart(bookid,quantity);谢谢阅读session.put("cart",cart);感谢阅读returnSUCCESS;}struts.xmlapplicationContext.xmlstruts.xml精品文档放心下载**<actionname="updateCart"class="shoppingAction"精品文档放心下载method="updateCart"><resultname="success">/showCart.jsp</result>感谢阅读</action>applicationContext.xml没有变化谢谢阅读4.JSP页面创建showCart.jsp文件<%@pagelanguage="java"contentType="text/html;谢谢阅读charset=gb2312"pageEncoding="gb2312"%><%@taglibprefix="s"uri="/struts-tags"%>精品文档放心下载<!DOCTYPEhtmlPUBLIC"-//W3C//DTDHTML4.01精品文档放心下载Transitional//EN""/TR/html4/loose.dtd">精品文档放心下载<html><head><metahttp-equiv="Content-Type"content="text/html;charset=ISO-8859-1">谢谢阅读<title>Inserttitlehere</title>感谢阅读</head><body><DIVclass=right>**<DIVclass=right_box><s:setname="items"value="#session.cart.items"/><s:iftest="#items.size!=0">感谢阅读<fontcolor="blue"><h3>您购物车中图书</h3></font>感谢阅读<br/><TABLEid=tbcellSpacing=2cellPadding=5width="95%"精品文档放心下载align=centerborder=0><tr><TDbgcolor=rgb(238,238,238)align="center"width="50%"感谢阅读height=12>书名</TD><TDbgcolor=rgb(238,238,238)align="center"width="15%"感谢阅读>定价</TD><TDbgcolor=rgb(238,238,238)align="center"感谢阅读width="15%">数量</TD><TDbgcolor=rgb(238,238,238)align="center"谢谢阅读width="20%"><fontcolor="gray">操作</font></TD>谢谢阅读</tr><formaction="updateCart.action"method="post">谢谢阅读<s:iteratorvalue="#items">感谢阅读<tr><td><s:propertyvalue="value.book.bookname"/>谢谢阅读**</td><td><s:propertyvalue="value.book.price"/>精品文档放心下载</td><td><inputtype="text"name="quantity"value='<s:property谢谢阅读value="value.quantity"/>'size="4"/>精品文档放心下载<inputtype="hidden"name="bookid"谢谢阅读value=""/></td><td><inputtype="submit"value="更新"/>谢谢阅读</td></tr></s:iterator></form></table><hr/>消费金额:<s:propertyvalue="#session.cart.totalPrice"/>元精品文档放心下载   <ahref="checkout.action"><img感谢阅读src="/bookstore/picture/count.gif"/></a>谢谢阅读**</s:if><s:else>对不起,您还没有选购图书!</s:else></DIV></body></html>修改index.jsp加入购物车超链接<ahref="/showCart.jsp">购物车</a>精品文档放心下载三、结帐开发步骤：DAOServiceActionStruts.xmlapplicationContext.xml谢谢阅读JSP1.DAO主要涉及的类和接口为IOrderDAO接口和OrderDAO类。精品文档放心下载IOrderDAO接口中定义了insertOrder方法,用来将插入到orderIOrderDAO.java精品文档放心下载packagecom.sxjiang.bookstore.dao;感谢阅读**importcom.sxjiang.bookstore.vo.Orders;publicinterfaceIOrderDAO{谢谢阅读publicOrdersinsertOrder(Ordersorder);谢谢阅读}OrderDAO.javapackagecom.sxjiang.bookstore.dao.impl;importcom.sxjiang.bookstore.dao.BaseDAO;importcom.sxjiang.bookstore.dao.IOrderDAO;importcom.sxjiang.bookstore.vo.Orders;importorg.hibernate.Session;importorg.hibernate.Transaction;精品文档放心下载publicclassOrderDAOextendsBaseDAOimplementsIOrderDAO{感谢阅读publicOrderssaveOrder(Ordersorder){精品文档放心下载Sessionsession=getSession();感谢阅读Transactiontx=session.beginTransaction();精品文档放心下载session.save(order);mit();session.close();returnorder;}2.Service**Service层主要的类和接口为接口IOrderService，这个接口定义精品文档放心下载了saveOrder方法，用于结帐。OrderService具体实现了这个接口。创建IOrderService.java谢谢阅读packagecom.sxjiang.bookstore.service;importcom.sxjiang.bookstore.vo.Orders;publicinterfaceIOrderService{精品文档放心下载publicOrderssaveOrder(Ordersorder);谢谢阅读}创建OrderService.javapackageorg.bookstore.service.impl;精品文档放心下载importcom.sxjiang.bookstore.dao.IOrderDAO;importcom.sxjiang.bookstore.service.IOrderService;importcom.sxjiang.bookstore.vo.Orders;精品文档放心下载publicclassOrderServiceimplementsIOrderService{privateIOrderDAOorderDAO;谢谢阅读publicvoidsetOrderDAO(IOrderDAOorderDAO){this.orderDAO=orderDAO;}感谢阅读publicOrderssaveOrder(Ordersorder){returnorderDAO.saveOrder(order);}感谢阅读**}3.Action使用ShoppingAction类的checkOut()完成结帐功能，类图如图精品文档放心下载6-10所示。修改ShoppingAction.javapublicStringcheckout()throwsException{谢谢阅读Mapsession=ActionContext.getContext().getSession();谢谢阅读Useruser=(User)session.get("user");精品文档放心下载Cartcart=(Cart)session.get("cart");精品文档放心下载if(user==null||cart==null)精品文档放心下载returnERROR;Ordersorder=newOrders();谢谢阅读order.setOrderdate(newDate());感谢阅读order.setUser(user);for(Iteratorit=cart.getItems().values().iterator();it.hasNext();){谢谢阅读Orderitemorderitem=(Orderitem)it.next();谢谢阅读orderitem.setOrders(order);感谢阅读order.getOrderitems().add(orderitem);谢谢阅读}orderService.saveOrder(order);感谢阅读Maprequest=(Map)ActionContext.getContext().get("request");精品文档放心下载**request.put("order",order);谢谢阅读returnSUCCESS;}4.struts.xmla