实验四答案、

1、Web 实验报告学号：姓名：陈波专业：信管1201实验目的：1、掌握内置对象的用法2、掌握JSP基本概念。3、掌握session对象的应用编程；4、掌握application对象的应用编程；5、熟悉初步的JSP代码片段应用编程6、掌握WEB项目中集合类如何应用于页面。 实验内容：练习1.完成购物车功能Login.jsp<% request ? setCharacterEncoding("UTF-8");%>vform action="Login.jsp" method= "post n>请输入姓名：<input type

2、="text" name ="name f,x/input><br>请输入密码 ：<input type = "password" name = "pass" value=>v/i nput><br><input type = "submit" value ="登录"<input id = "canceL" type= ”reset,f value ="取消千 OPW<%if(request

3、.getParameter(” name")!=null)&&(request.getParameter( pass")!=nu II)( sessi on. setAttribute(" name"(request.getParameter(" name");sessi on. setAttribute("pass"(request.getParameter("pass");%>vjsp:forward page = "k/etcowe.jsp nx/jsp:f

4、orward><%) %>目 loginjsp I 2 Teacherinfo.java 2 ManageTeachers.jc回秒 o ca I h o st:8080/g o uwu/l o g i n J s p 请输入姓名L请输入密码：Welcome.jsp<% request.setcharacterE ncodi ng("UTF-8");Stri ng logi nn ame =n ull;if (sessi on. getAttribute(" name")!=n ull)logi nn ame = sessio n

5、.getAttribute(" name").toStri ng();%>欢迎你！<%=logi nn ame %><br><script>fun cti on e()locati on .href="list.jsp"setTimeout ("e()", 3000);/ 设置等待时间 </script>'F .la_|ZZT/'H) log in .jsp I JJ Teacheri nfojava Mgn ageTea?<凰 & http:/loc

6、alhost:8080/gouwu/login.jsp欢迎你！陈皓if (listName! =null)(Stri ng listName = request.getParameterValues("choice");for (int i =0;i<listNameength;i+)(session.setAttribute(String .valueOf(i)listNamei); %><pxa href= "choiceList.jsp"> 查看购物车 </a>I 园 loginjsp 2) Teacherinf

7、ojava 2) ManageTeachersjava I 昌 teacherjsp _园 teacJ B 秒 oca I hList.jsp<%request.setCharacterE ncodi ng("UTF-S") ;%> 请选择需要购买的水果：<p> <form i<in put<in put<in put<in put<in put<in put<in put</form> <%method = "post" actio n = "List.

8、jsp" type namehecktoxe type =" checkbox" type ="checkbox" type checkbox" valuevalu n arrtype checkboxe nampe ="dhecbox" valu type =namen amenam e""submit" ="choiceIIe valu e valu="choice加入购物车"=''芒果'芒果="葡萄" &g

9、t; 葡萄="哈密瓜"哈密 瓜="香蕉" > 香蕉=''火龙果'、> 火n ame="submit">ost:8080/g ou wu/l ist.js p请选择需要购买的水果:1杳看购物车Choicelist.jspv%page import="java. utiL. %><%request.setCharacterE ncodi ng("UTF-8");Enu merati on< Stri ng> enu mlist= sessio

10、n.getAttributeNames();%>购物车中的宝贝为：<P><%while (enumlist.hasMoreElements()Stri ng key = enu mlist. nextEleme nt();String value = sessio n.getAttribute(key).toStri ng();if(! key. equals ("pass" )&&! key. equalsC name")!out. println( value);%>昌_loginjsp J Teacherinfo

11、.java T ManageTeachers.java I S tea B http:/localhost:8080/gouwu/choicelist.jsp购物车中的宝贝为:香蕉葡萄芒果狙回重新选搔练习2.完成留言板功能：包括留言信息提交。查看留言板等。MsgBoard.jspvform action="save.jsp" method="post">请输入姓名：<input type="text" name="name ”x/inputxbr>请输入标题：<input type = "t

12、ext" name ="msgtitLe" ></inputxbr> 请输入留言： vtextarea cols=60 rows=10name="msg" style="background-color:bute"><!- 请输入留言哟！ -></textarea><in put n ame = "en ter" type="submit"value ="提交留言"</form>jS MsgBoard

13、.jsp save.jsp 3 In sert title here g詹 http:/localhost:8080/liuyan/MsgBoard.jsp请输入姓名：请输入标题:< !-请输入留言哟！-> I函§言请输入留言:save.jsp<% request.setcharacterE ncodi ng("UTF-8");Stri ng n ame = request.getParameter(” name");String msgtitle = request.getParameter("msgtitle")

14、;String msg = request.getParameter("msg");Message m = new Message。；m.setMsg(msg);m.setMsgtitle(msgtitle);m.setName( name);m.setTim e(new Date().toStri ng();ArrayList<Message> list=n ull;if (applicati on. getAttribute("msg")=nu II)list = new ArrayList<Message>();elseli

15、st=(ArrayList<Message>)(applicati on .getAttribute("msg");list.add(m);applicatio n.setAttribute("msg"list);out.println("您的留言已经提交！” ；%<pxa cef="MsgBoarcl.jsp"> 继续留言 </a><pxa hreA"show.jsp"> 查看留言 </a>U| MsgBoard.jsp 百 save.jsp

16、In sert title here S3 & http:/localhost:8080/liuyan/MsgBoard.jsp请输入姓名：陈皓请输入标题：双11到了哦I快把你女票的银行卡冻结了5 MsgBoardjsp _园_save.jsp Insert title here U <) 画秒 htt p:/l o ca I h o st:8080/1i uy a n/s ave.j s p您的留言已经提交！继续留言查看留言show.jspv%request.setCharacterE ncodi ng("UTF-8");%><% ArrayLi

17、st<Message> list=(ArrayList<Message>)(applicati on. getAttribute("msg");%> <% for(int i=O;i<list.size();i+)(Message m=list.get(i);Stri ng n ame=m.getName();String title=m.getMsgtitle();Stri ng msg=m.getMsg();String time=m.getTime();%>vtable border="2" bord

18、ercolor="#000000 f,><tr><th> 序号 </th><th> 姓名 </th><th> 标题 </th><th> 留言 </th><th> 时间 </th>v/tr><tr><td> 第 <%=i+l %个</td><td><%= n ame%x/td><tdx%=title%x/td><td>v%=msg%x/td><td>v%=time%x/td