本次是JavaWeb期中考试最后一个部分，系统更新和数据显示的代码分享
首先是updateq.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>更新前端界面</title>
</head>
<body>
<form action="update.jsp" method="get">
<table align ="center" boder="1" width="500">
<tr>
<td>姓名：</td>
<td><input type="text" name="xingming" /></td>
</tr>
<tr>
<tr align "center">
<td colspan="2"><input type ="submit" value ="更新"/> </td>
</tr>
</table>
</form>
</body>
update.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page import="R.Renkou"%>
<%@ page import="Dao.dao"%>
<%@ page import="java.util.ArrayList"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>请确认您要更新的信息</title>
</head>
<body>
<%
ArrayList<Renkou>a1=new ArrayList<Renkou>();
dao d=new dao();
String xname=request.getParameter("xingming");
session.setAttribute("name", xname);
a1=d.searchbyname(xname);
%>
<table border="1" width="100%">
<tr>
<th>户别</th>
<th>类型</th>
<th>面积</th>
<th>房间数</th>
<th>户主姓名</th>
<th>身份证号</th>
<th>性别</th>
<th>民族</th>
<th>受教育程度</th>
</tr>
<%
for(int i=0;i<a1.size();i++)
{
Renkou in=a1.get(i);
String hubie=in.Gethubie();
String leixing=in.Getleixing();
String mianji=in.Getmianji();
String fangjianshu=in.Getfangjianshu();
String xingming2=in.Getxingming();
String shenfenzhenghao=in.Getshenfenzhenghao();
String xingbie2=in.Getxingbie();
String minzu2=in.Getminzu();
String jiaoyu2=in.Getjiaoyu();
%>
<tr>
<td><%=(hubie) %></td>
<td><%=(leixing) %></td>
<td><%=(mianji) %></td>
<td><%=(fangjianshu) %></td>
<td><%=(xingming2) %></td>
<td><%=(shenfenzhenghao) %></td>
<td><%=(xingbie2) %></td>
<td><%=(minzu2) %></td>
<td><%=(jiaoyu2) %></td>
</tr>
<%
}
%>
</table>
<input style="margin-left:230px;margin-top:90px;width:150px;height:60px" type = "button" value = "取消更新点击这里" onclick = "window.location.href ='index.jsp'">
<input style="margin-left:230px;margin-top:90px;width:150px;height:60px" type = "button" value = "确认更新请点击这里" onclick = "window.location.href ='querenxiugaiq.jsp'">
querenxiugaiq.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>修改界面</title>
</head>
<body>
<form action="querenxiugai.jsp" method="get">
<table align ="center" boder="1" width="500">
<tr>
<td>姓名(修改前)：</td>
<td><input type="text" name="yname" /></td>
</tr>
<tr>
<td>身份证号码(修改后)：</td>
<td><input type="text" name="shenfenzheng1" /></td>
</tr>
<tr>
<td>性别(修改后)：</td>
<td><input type ="text" name="upsex"/></td>
</tr>
<tr>
<td>民族(修改后)：</td>
<td><input type ="text" name="upminzu"/></td>
</tr>
<tr>
<td>受教育程度(修改后)：</td>
<td><input type ="text" name="upjiaoyu"/></td>
</tr>
<tr align "center">
<td colspan="2"><input type ="submit" value ="确认修改"/> </td>
</tr>
</table>
</form>
</body>
querenxiugai.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page import="R.Renkou"%>
<%@ page import="Dao.dao"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
//以下语句用于接收客户端传来的参数
dao d=new dao();
Renkou r=new Renkou();
String yname=request.getParameter("yname");
String shenfenzheng1 =request.getParameter("shenfenzheng1");
String upsex=request.getParameter("upsex");
String upminzu =request.getParameter("upminzu");
String upjiaoyu=request.getParameter("upjiaoyu");
d.judge(shenfenzheng1);
if(d.judge(shenfenzheng1)==0)
{
response.getWriter().append("身份证号输入不正确！");
%><input type="button" onclick="window.location.href ='querenxiugai.jsp'" value="重新输入"/> <%
}
d.update(shenfenzheng1,upsex,upminzu,upjiaoyu,yname);
%>
<input style="margin-left:230px;margin-top:90px;width:100px;height:60px" type = "button" value = "点击这里返回" onclick = "window.location.href = 'index.jsp'">
</body>
</html>
show.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page import="R.Renkou"%>
<%@ page import="java.util.ArrayList"%>
<%@ page import="Dao.dao"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
dao d=new dao();
ArrayList<Renkou> r=new ArrayList<Renkou>();
r=d.show();
%>
<table border="1" width="100%">
<tr>
<th>户别</th>
<th>类型</th>
<th>面积</th>
<th>房间数</th>
<th>户主姓名</th>
<th>身份证号</th>
<th>性别</th>
<th>民族</th>
<th>受教育程度</th>
</tr>
<%
for(int i=0;i<r.size();i++)
{
Renkou in=r.get(i);
String hubie=in.Gethubie();
String leixing=in.Getleixing();
String mianji=in.Getmianji();
String fangjianshu=in.Getfangjianshu();
String xingming2=in.Getxingming();
String shenfenzhenghao=in.Getshenfenzhenghao();
String xingbie2=in.Getxingbie();
String minzu2=in.Getminzu();
String jiaoyu2=in.Getjiaoyu();
%>
<tr>
<td><%=(hubie) %></td>
<td><%=(leixing) %></td>
<td><%=(mianji) %></td>
<td><%=(fangjianshu) %></td>
<td><%=(xingming2) %></td>
<td><%=(shenfenzhenghao) %></td>
<td><%=(xingbie2) %></td>
<td><%=(minzu2) %></td>
<td><%=(jiaoyu2) %></td>
</tr>
<%
}
%>
</table>
<input style="margin-left:230px;margin-top:90px;width:100px;height:60px" type = "button" value = "返回主菜单" onclick = "window.location.href = 'index.jsp'">
</body>
</html>
标签：JavaWeb,期中考试,修改,jsp,new,2019,xname From： https://www.cnblogs.com/Arkiya/p/16851550.html