一、今日学习内容：
人口普查系统：（18级学姐）
package dao;
import Bean.Census;
import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.JdbcTemplate;
import utils.JDBCUtils;
import java.util.List;
public class dao {
JdbcTemplate template=new JdbcTemplate(JDBCUtils.getDataSource());
//添加
public boolean addCensus(Census census){
boolean flag=false;
String sql="insert into census(hubie,housetype,area,housenum,holdername,idnum,gender,nation,education) values(?,?,?,?,?,?,?,?,?)";
int update = template.update(sql, census.getHubie(), census.getHousetype(), census.getArea()
, census.getHousenum(), census.getHoldername(), census.getIdnum()
, census.getGender(), census.getNation(), census.getEducation());
if (update>=1){
//update表示操作成功的数目，大于等于1时添加成功
flag=true;
}
return flag;
}
//修改
public boolean updateCensus(Census census){
boolean flag=false;
String sql="update census set hubie=?,housetype=?,area=?,housenum=?,holdername=?,idnum=?" +
",gender=?,nation=?,education=? where id=?";
int update = template.update(sql, census.getHubie(),census.getHousetype(),census.getArea(),census.getHousenum()
,census.getHoldername(),census.getIdnum(),census.getGender(),census.getNation(),census.getEducation(),census.getId());
if (update>=1){
flag=true;
}
return flag;
}
//删除
public boolean delCensus(int id){
boolean flag=false;
String sql="delete from census where id=?";
int update = template.update(sql, id);
if (update>=1){
flag=true;
}
return flag;
}
//查询全部
public List<Census> queryAll(){
String sql="select * from census order by id desc";
List<Census> censusList = template.query(sql, new BeanPropertyRowMapper<Census>(Census.class));
return censusList;
}
//根据姓名查询
public Census queryByName(String name){
String sql="select * from census where holdername=?";
Census censuse = template.queryForObject(sql, new BeanPropertyRowMapper<Census>(Census.class), name);
return censuse;
}
//根据id查询
public Census queryById(int id){
String sql="select * from census where id=?";
Census censuse = template.queryForObject(sql, new BeanPropertyRowMapper<Census>(Census.class), id);
return censuse;
}
//模糊查询
public List<Census> search(String sql,String stj){
List<Census> censuses = template.query(sql, new BeanPropertyRowMapper<>(Census.class), stj);
return censuses;
}
}
<%--
Created by IntelliJ IDEA.
User: 张志伟
Date: 2020/11/12
Time: 17:07
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title>主页</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="${pageContext.request.contextPath }/bootstrap/css/bootstrap.min.css">
<script src="${pageContext.request.contextPath }/bootstrap/js/jquery-3.5.1.min.js"></script>
<script src="${pageContext.request.contextPath }/bootstrap/js/bootstrap.min.js"></script>
</head>
<body>
<!--导航栏-->
<nav class="navbar navbar-inverse">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">人口普查登记 <small>V1.0</small></a>
</div>
</div><!-- /.navbar-collapse -->
</div><!-- /.container-fluid -->
</nav>
<!--导航栏-->
<!--页面中心内容-->
<div class="container-fluid">
<div class="row">
<!--左半区-->
<div class="col-sm-2">
<!--菜单组件-->
<div class="panel-group" id="accordion" role="tablist" aria-multiselectable="true">
<div class="panel panel-default">
<div class="panel-heading" role="tab" id="headingOne">
<h4 class="panel-title">
<a role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseOne" aria-expanded="true" aria-controls="collapseOne">
菜单
</a>
</h4>
</div>
<div id="collapseOne" class="panel-collapse collapse in" role="tabpanel" aria-labelledby="headingOne">
<div class="panel-body">
<ul class="list-group">
<a class="list-group-item active" href="index.jsp">信息登记</a>
<a class="list-group-item"href="queryAllServlet">信息浏览</a>
<a class="list-group-item"href="search.jsp">模糊查询</a>
</ul>
</div>
</div>
</div>
</div>
</div>
<!--左半区-->
<!--中间部分-->
<div id="content">
<!--页面中心内容-->
<div class="col-sm-10">
<form action="${pageContext.request.contextPath}/addCensusServlet" method="post" onsubmit="return check()">
<script>
function check() {
var area=$("#area").val().trim();
var housenum=$("#housenum").val().trim();
var idnum = $("#idnum").val().trim();
var isCardNo = function (card) {
//身份证号码为15位或者18位，15位时全为数字，18位前17位为数字，最后一位是校验位，可能为数字或字符X
var reg = /(^\d{15}$)|(^\d{17}(\d|X)$)/;
return reg.test(card);
};
var check = /^\d+$/;
if(area == null || isNaN(area) || area == "" || !check.test(area)){
alert("房间面积为整数")
return false;
}
if(housenum == null || isNaN(housenum) || housenum == "" || !check.test(housenum)){
alert("房间个数为整数");
$("#housenum").focus();
return false;
}
if (!isCardNo(idnum)){
alert("请输入正确的身份证号")
return false;
}
}
</script>
<table id="addTable" class="table table-bordered ">
<tr class="text-center row">
<td class="col-sm-2">
户别
</td>
<td class="col-sm-4">
<input type="radio" name="hubie" id="hubie1" value="家庭户">家庭户
<input type="radio" name="hubie" id="hubie2" value="集体户">集体户
</td>
<td class="col-sm-2">
住房类型
</td>
<td class="col-sm-4">
<input type="radio" name="housetype" id="housetype1" value="家庭住宅">家庭住宅
<input type="radio" name="housetype" id="housetype2" value="集体住所">集体住所
<input type="radio" name="housetype" id="housetype3" value="工作地住所">工作地住所
<input type="radio" name="housetype" id="housetype4" value="其他住宅">其他住宅
<input type="radio" name="housetype" id="housetype5" value="无住宅">无住宅
</td>
</tr>
<tr class="text-center row">
<td class="col-sm-2">
本户现住房面积
</td>
<td class="col-sm-4">
<input type="text" class="form-control" name="area" id="area" placeholder="请输入数字(平方米)">
</td>
<td class="col-sm-2 ">
本户现住房间数
</td>
<td class="col-sm-4">
<input type="text" class="form-control" name="housenum" id="housenum" placeholder="请输入数字(间)">
</td>
</tr>
<tr class="text-center row">
<td class="col-sm-2">
户主姓名
</td>
<td class="col-sm-4">
<input type="text" class="form-control" name="holdername" id="holdername" placeholder="请输入户主姓名">
</td>
<td class="col-sm-2 ">
身份证号码
</td>
<td class="col-sm-4">
<input type="text" class="form-control" name="idnum" id="idnum" placeholder="请输入身份证号码">
</td>
</tr>
<tr class="text-center row">
<td class="col-sm-2">
性别
</td>
<td class="col-sm-4">
<input type="radio" name="gender" id="gender1" value="男">男
<input type="radio" name="gender" id="gender2" value="女">女
</td>
<td class="col-sm-2">
民族
</td>
<td class="col-sm-4">
<input type="text" class="form-control" name="nation" id="nation" placeholder="民族">
</td>
</tr>
<tr class="text-center row">
<td>
受教育程度
</td>
<td colspan="3">
<select class="form-control" id="education" name="education">
<option value="研究生">研究生</option>
<option value="大学本科">大学本科</option>
<option value="大学专科">大学专科</option>
<option value="高中">高中</option>
<option value="初中">初中</option>
<option value="小学">小学</option>
<option value="未上过学">未上过学</option>
</select>
</td>
</tr>
</table>
<button type="submit" class="btn btn-info col-sm-offset-6">提交</button>
</form>
<%--出错显示的信息框--%>
<div id="register_msg_alert" class="alert alert-warning alert-dismissible hide" role="alert">
<button type="button" class="close" data-dismiss="alert" >
<span >x</span>
</button>
<strong>${add_msg}</strong>
</div>
</div>
</div>
</div>
</div>
<!--页面中心内容-->
</body>
</html>
二、遇到的问题：
关于servlet还是不太明白。
三、明日学习计划:
继续学习javaweb。