每日小结
今天软工课做了个测试，好多的增删改查，之前学编程的时候都是学的增删改查所以也就感觉到不太难，这次倒是增加了新的东西还没有学到的，用户维护还有网址部署方面的不太了解，接下来就是对着几个方面进行学习，我们的团队项目就是对网站的开发用得上，这几天把团队项目好好搞搞争取弄个好结果。
login.jsp:
<%--
Created by IntelliJ IDEA.
User: 3470387368
Date: 2023/5/29
Time: 15:14
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" %>
<!DOCTYPE html>
<html>
<head>
<title>登录结果</title>
</head>
<body>
<h1>登录结果</h1>
<c:set var="username" value="${param.username}" />
<c:set var="password" value="${param.password}" />
<c:set var="role" value="${param.role}" />
<%-- 在这里执行验证和登录逻辑 --%>
<%-- 以下是一个简单的示例，你可以根据需要进行修改 --%>
<c:choose>
<c:when test="${role eq 'student' && username eq 'student' && password eq 'password'}">
<% response.sendRedirect("student.jsp"); %>
</c:when>
<c:when test="${role eq 'teacher' && username eq 'teacher' && password eq 'password'}">
<% response.sendRedirect("teacher.jsp"); %>
</c:when>
<c:when test="${role eq 'admin' && username eq 'admin' && password eq 'password'}">
<% response.sendRedirect("manager.jsp"); %>
</c:when>
<c:otherwise>
<p>登录失败，请检查用户名、密码和角色。</p>
</c:otherwise>
</c:choose>
</body>
</html>
index.jsp:
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<title>登录</title>
<style>
body {
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
}
form {
width: 300px;
padding: 20px;
border: 1px solid #ccc;
border-radius: 5px;
background-color: #f4f4f4;
}
h1 {
text-align: center;
}
label {
display: block;
margin-bottom: 10px;
}
input[type="text"],
input[type="password"],
select {
width: 100%;
padding: 5px;
margin-bottom: 10px;
}
input[type="submit"] {
width: 100%;
padding: 10px;
background-color: #4CAF50;
color: white;
border: none;
border-radius: 5px;
cursor: pointer;
}
</style>
</head>
<body>
<form method="post" action="login.jsp">
<h1>登录</h1>
<label for="username">用户名：</label>
<input type="text" id="username" name="username" required>
<label for="password">密码：</label>
<input type="password" id="password" name="password" required>
<label for="role">角色：</label>
<select id="role" name="role">
<option value="student">学生</option>
<option value="teacher">教师</option>
<option value="admin">管理员</option>
</select>
<input type="submit" value="登录">
</form>
</body>
</html>
add.jsp:
<%--
Created by IntelliJ IDEA.
User: 3470387368
Date: 2023/2/21
Time: 20:52
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!-- HTML5文档-->
<!DOCTYPE html>
<!-- 网页使用的语言 -->
<html lang="zh-CN">
<head>
<!-- 指定字符集 -->
<meta charset="utf-8">
<!-- 使用Edge最新的浏览器的渲染方式 -->
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<!-- viewport视口：网页可以根据设置的宽度自动进行适配，在浏览器的内部虚拟一个容器，容器的宽度与设备的宽度相同。
width: 默认宽度与设备的宽度相同
initial-scale: 初始的缩放比，为1:1 -->
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！ -->
<title>添加用户</title>
<!-- 1. 导入CSS的全局样式 -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<!-- 2. jQuery导入，建议使用1.9以上的版本 -->
<script src="js/jquery-2.1.0.min.js"></script>
<!-- 3. 导入bootstrap的js文件 -->
<script src="js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
<center><h3>添加联系人页面</h3></center>
<form action="${pageContext.request.contextPath}/addUserServlet" method="post">
<div class="form-group">
<label for="name">姓名：</label>
<input type="text" class="form-control" id="name" name="name" placeholder="请输入姓名">
</div>
<div class="form-group">
<label for="age">年龄：</label>
<input type="text" class="form-control" id="age" name="age" placeholder="请输入年龄">
</div>
<div class="form-group">
<label for="gender">班级：</label>
<input type="text" class="form-control" id="gender" name="gender" placeholder="请输入班级">
</div>
<div class="form-group" style="text-align: center">
<input class="btn btn-primary" type="submit" value="提交" />
<input class="btn btn-default" type="reset" value="重置" />
<input class="btn btn-default" type="button" value="返回" />
</div>
</form>
</div>
</body>
</html>
list.jsp:
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<!-- 网页使用的语言 -->
<html lang="zh-CN">
<head>
<!-- 指定字符集 -->
<meta charset="utf-8">
<!-- 使用Edge最新的浏览器的渲染方式 -->
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<!-- viewport视口：网页可以根据设置的宽度自动进行适配，在浏览器的内部虚拟一个容器，容器的宽度与设备的宽度相同。
width: 默认宽度与设备的宽度相同
initial-scale: 初始的缩放比，为1:1 -->
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！ -->
<title>用户信息管理系统</title>
<!-- 1. 导入CSS的全局样式 -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<!-- 2. jQuery导入，建议使用1.9以上的版本 -->
<script src="js/jquery-2.1.0.min.js"></script>
<!-- 3. 导入bootstrap的js文件 -->
<script src="js/bootstrap.min.js"></script>
<style type="text/css">
td, th {
text-align: center;
}
</style>
<script>
function deleteUser(id){
//用户安全提示
if(confirm("您确定要删除吗？")){
location.href=" ${pageContext.request.contextPath}/delUserServlet?id="+id;
}
}
window.onload = function (){
//给删除选中按钮添加点击事件
document.getElementById("delSelected").onclick=function (){
//提示信息
if (confirm("您确定要删除选中条目吗")){
var flag=false;
//判断是否有选中条目
var cbs = document.getElementsByName("uid");
for (var i = 0; i < cbs.length; i++) {
if(cbs[i].checked){
//有一个条目选中l
flag=true;
break;
}
}
if(flag){//有条目被选中
//提交表单
document.getElementById("form").submit();
}
}
}
//1.获取第一个Cb
document.getElementById("firstCb").onclick=function (){
//2.获取下边列表中所有的Cb
var cbs = document.getElementsByName("uid");
//3.遍历
for (var i = 0; i < cbs.length; i++) {
//4.设置这些cbs【i】的checked状态==firstCb.checked
cbs[i].checked=this.checked;
}
}
}
</script>
</head>
<body>
<div class="container">
<h3 style="text-align: center">用户信息列表</h3>
<%--
内联表单
--%>
<div style="float: left;">
<form class="form-inline" action="${pageContext.request.contextPath}/findUserByPageServlet" method="post">
<div class="form-group">
<label for="exampleInputName2">姓名</label>
<input type="text" name="name" value="${condition.name[0]}" class="form-control" id="exampleInputName2" >
</div>
<div class="form-group">
<label for="exampleInputName3">年龄</label>
<input type="text" name="age" value="${condition.address[0]}" class="form-control" id="exampleInputName3" >
</div>
<div class="form-group">
<label for="exampleInputEmail2">班级</label>
<input type="text" name="gender" value="${condition.email[0]}"class="form-control" id="exampleInputEmail2" >
</div>
<button type="submit" class="btn btn-default">查询</button>
</form>
</div>
<div style="float:right;margin: 5px;">
<a class="btn btn-primary" href="${pageContext.request.contextPath}/add.jsp">添加学生</a>
<a class="btn btn-primary" href="javascript:void(0);" id="delSelected">删除选中</a>
</div>
<%--
查看数据库
--%>
<form id="form" action="${pageContext.request.contextPath}/delSelectedServlet" method="post">
<table border="1" class="table table-bordered table-hover">
<tr class="success">
<%--多选框--%>
<th><input type="checkbox" id="firstCb"></th>
<th>编号</th>
<th>姓名</th>
<th>年龄</th>
<th>班级</th>
<th>操作</th>
</tr>
<c:forEach items="${pb.list}" var="user" varStatus="s">
<tr>
<th><input type="checkbox" name="uid" value="${user.id}"></th>
<td>${user.name}</td>
<td>${user.age}</td>
<td>${user.gender}</td>
<td><a class="btn btn-default btn-sm" href="${pageContext.request.contextPath}/findUserServlet?id=${user.id}">修改</a>
<a class="btn btn-default btn-sm" href="javascript:deleteUser(${user.id});">删除</a></td>
</tr>
</c:forEach>
<%-- <tr>--%>
<%-- <td colspan="8" align="center"></td>--%>
<%-- </tr>--%>
</table>
</form>
<%--
分页组件
--%>
<div>
<nav aria-label="Page navigation">
<ul class="pagination">
<c:if test="${pb.currentPage== 1}">
<li class="disabled">
<a href="${pageContext.request.contextPath}/findUserByPageServlet?currentPage=${pb.currentPage-1}&rows=5&name=${condition.name[0]}&address=${condition.address[0]}&email=${condition.email[0]}" aria-label="Previous">
<span aria-hidden="true">«</span>
</a>
</li>
</c:if>
<c:if test="${pb.currentPage!= 1}">
<li>
<a href="${pageContext.request.contextPath}/findUserByPageServlet?currentPage=${pb.currentPage-1}&rows=5&name=${condition.name[0]}&address=${condition.address[0]}&email=${condition.email[0]}" aria-label="Previous">
<span aria-hidden="true">«</span>
</a>
</li>
</c:if>
<%-- <li>--%>
<%-- <a href="${pageContext.request.contextPath}/findUserByPageServlet?currentPage=${pb.currentPage-1}&rows=5" aria-label="Previous">--%>
<%-- <span aria-hidden="true">«</span>--%>
<%-- </a>--%>
<%-- </li>--%>
<c:forEach begin="1" end="${pb.totalPage}" var="i">
<%-- <li><a href="${pageContext.request.contextPath}/findUserByPageServlet?currentPage=${i}&rows=5">${i}</a></li>--%>
<c:if test="${pb.currentPage == i}">
<li class="active"><a href="${pageContext.request.contextPath}/findUserByPageServlet?currentPage=${i}&rows=5&name=${condition.name[0]}&address=${condition.address[0]}&email=${condition.email[0]}">${i}</a></li>
</c:if>
<c:if test="${pb.currentPage != i}">
<li ><a href="${pageContext.request.contextPath}/findUserByPageServlet?currentPage=${i}&rows=5&name=${condition.name[0]}&address=${condition.address[0]}&email=${condition.email[0]}">${i}</a></li>
</c:if>
</c:forEach>
<%-- 最后一个下一页框设置不可点击--%>
<%-- <c:if test="${pb.currentPage== totalPage}">--%>
<%-- <li class="disabled">--%>
<%-- <a href="${pageContext.request.contextPath}/findUserByPageServlet?currentPage=${pb.currentPage+1}&rows=5" aria-label="Previous">--%>
<%-- <span aria-hidden="true">«</span>--%>
<%-- </a>--%>
<%-- </li>--%>
<%-- </c:if>--%>
<%-- <c:if test="${pb.currentPage!= totalPage}">--%>
<%-- <li>--%>
<%-- <a href="${pageContext.request.contextPath}/findUserByPageServlet?currentPage=${pb.currentPage+1}&rows=5" aria-label="Previous">--%>
<%-- <span aria-hidden="true">«</span>--%>
<%-- </a>--%>
<%-- </li>--%>
<%-- </c:if>--%>
<li>
<a href="${pageContext.request.contextPath}/findUserByPageServlet?currentPage=${pb.currentPage+1}&rows=5&name=${condition.name[0]}&address=${condition.address[0]}&email=${condition.email[0]}" aria-label="Next">
<span aria-hidden="true">»</span>
</a>
</li>
<span style="font-size: 25px;margin-left: 5px;">
共${pb.totalCount}条记录，共${pb.totalPage}页
</span>
</ul>
</nav>
</div>
</div>
</body>
</html>
student.jsp:
<%--
Created by IntelliJ IDEA.
User: 3470387368
Date: 2023/5/29
Time: 14:54
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html>
<head>
<title>学生页面</title>
</head>
<body>
<h1>学生页面</h1>
<div align="center">
<a
href="${pageContext.request.contextPath}//findUserByPageServlet" style="text-decoration:none;font-size:33px">查询学生信息
</a>
</div>
<ul>
<li><a href="viewStudent.jsp">学生查看</a></li>
<li><a href="updateStudent.jsp">修改基本信息</a></li>
<li><a href="viewExamScores.jsp">查询考试成绩</a></li>
</ul>
</body>
</html>
teacher.jsp:
<%--
Created by IntelliJ IDEA.
User: 3470387368
Date: 2023/5/29
Time: 14:54
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html>
<head>
<title>教师页面</title>
</head>
<body>
<h1>教师页面</h1>
<ul>
<li><a href="viewTeacher.jsp">教师查看</a></li>
<li><a href="updateTeacher.jsp">修改基本信息</a></li>
<li><a href="enterExamScores.jsp">录入个人所教考试科目成绩</a></li>
<li><a href="updateExamScores.jsp">修改个人所教考试科目成绩</a></li>
<li><a href="totalExamScores.jsp">成绩汇总</a></li>
</ul>
</body>
</html>
manager:jsp:
<%--
Created by IntelliJ IDEA.
User: 3470387368
Date: 2023/5/29
Time: 14:55
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>管理员界面</title>
</head>
<body>
<h1>管理员页面</h1>
<ul>
<li><a href="rigest.jsp">用户注册</a></li>
<li><a href="usermanager">用户权限管理</a></li>
</ul>
</body>
</html>
update.jsp:
<%--
Created by IntelliJ IDEA.
User: 3470387368
Date: 2023/2/22
Time: 16:06
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" %>
<!DOCTYPE html>
<!-- 网页使用的语言 -->
<html lang="zh-CN">
<head>
<!-- 指定字符集 -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>修改用户</title>
<link href="css/bootstrap.min.css" rel="stylesheet">
<script src="js/jquery-2.1.0.min.js"></script>
<script src="js/bootstrap.min.js"></script>
</head>
<body>
<div class="container" style="width: 400px;">
<h3 style="text-align: center;">修改联系人</h3>
<form action="${pageContext.request.contextPath}/updateUserServlet" method="post">
<%--隐藏域--%><input type="hidden" name="id" value="${user.id}">
<div class="form-group">
<label for="name">姓名：</label>
<input type="text" class="form-control" id="name" name="name" value="${user.name}" readonly="readonly" placeholder="请输入姓名" />
</div>
<div class="form-group">
<label for="age">年龄：</label>
<input type="text" class="form-control" value="${user.age}"id="age" name="age" placeholder="请输入年龄" />
</div>
<div class="form-group">
<label for="gender">班级：</label>
<input type="text" class="form-control" value="${user.gender}"name="gender"id="gender" placeholder="请输入班级"/>
</div>
<div class="form-group" style="text-align: center">
<input class="btn btn-primary" type="submit" value="提交" />
<input class="btn btn-default" type="reset" value="重置" />
<input class="btn btn-default" type="button" value="返回"/>
</div>
</form>
</div>
</body>
</html>
finduserbypageservlet:
package cn.itcase.web.servlet;
import cn.itcase.domain.PageBean;
import cn.itcase.domain.User;
import cn.itcase.service.UserService;
import cn.itcase.service.impl.UserServiceImpl;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Map;
@WebServlet(name = "FindUserByPageServlet", value = "/findUserByPageServlet")
public class FindUserByPageServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
this.doPost(request,response);
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
//1.获取参数
String currentPage = request.getParameter("currentPage");//当前页码
String rows = request.getParameter("rows");//每页显示的条数
//进行一个判断
if (currentPage ==null||"".equals(currentPage)){
currentPage="1";
}
if (rows == null || "".equals(rows)){
rows="5";
}
//获取条件查询的参数
Map<String, String[]> condition = request.getParameterMap();
//2.调用service查询
UserService service= new UserServiceImpl();
PageBean<User> pb = service.findUserByPage(currentPage,rows,condition);
//System.out.println(pb);
//3.将PageBean存入request;
request.setAttribute("pb",pb);
request.setAttribute("condition",condition);//将查询条件存入request域中
//4.转发到list.jsp
request.getRequestDispatcher("/list.jsp").forward(request,response);
}
}adduserservlet:
package cn.itcase.web.servlet;
import cn.itcase.domain.User;
import cn.itcase.service.UserService;
import cn.itcase.service.impl.UserServiceImpl;
import org.apache.commons.beanutils.BeanUtils;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.util.Map;
@WebServlet(name = "AddUserServlet", value = "/addUserServlet")
public class AddUserServlet extends HttpServlet {
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//1.设置编码
request.setCharacterEncoding("UTF-8");
//2.获取参数
Map<String, String[]> map = request.getParameterMap();
//3.封装对象
User user=new User();
try {
BeanUtils.populate(user,map);
} catch (IllegalAccessException | InvocationTargetException e) {
throw new RuntimeException(e);
}
//4.调用service保存
UserService service=new UserServiceImpl();
service.addUser(user);
//5.跳转到userListServlet
response.sendRedirect(request.getContextPath()+"/findUserByPageServlet");
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
}
}updateservlet:
package cn.itcase.web.servlet;
import cn.itcase.domain.User;
import cn.itcase.service.UserService;
import cn.itcase.service.impl.UserServiceImpl;
import org.apache.commons.beanutils.BeanUtils;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.util.Map;
@WebServlet(name = "UpdateUserServlet", value = "/updateUserServlet")
public class UpdateUserServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
this.doPost(request,response);
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//1.设置编码
request.setCharacterEncoding("utf-8");
//2.获取map
Map<String,String[]> map=request.getParameterMap();
//3.封装对象
User user=new User();
try {
BeanUtils.populate(user,map);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
} catch (InvocationTargetException e) {
throw new RuntimeException(e);
}
//4.调用service修改
UserService service=new UserServiceImpl();
service.updateUser(user);
//5.跳转到查询所有的servlet
response.sendRedirect(request.getContextPath()+"/findUserByPageServlet");
}
}userlistservlet:
package cn.itcase.web.servlet;
import cn.itcase.domain.User;
import cn.itcase.service.UserService;
import cn.itcase.service.impl.UserServiceImpl;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;
@WebServlet(name = "UserListServlet", value = "/userListServlet")
public class UserListServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//1.调用UserService完成查询
UserService service= new UserServiceImpl();
List<User> users=service.findAll();
//2.将list存入reques域
request.setAttribute("users",users);
//3.转发到list.jsp页面
request.getRequestDispatcher("/list.jsp").forward(request,response);
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
}
}
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