javaweb学生信息管理系统（无用版，仅供学习入门）

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我是靠谱客的博主知性吐司，这篇文章主要介绍javaweb学生信息管理系统（无用版，仅供学习入门），现在分享给大家，希望可以做个参考。

本系统用到的工具是IDEA+MYSQL+tomcat9
通过servlet+jsp+javabean实现
数据库表结构如下，数据库名称为studentinfo
在这里插入图片描述

这是刚开始录入的一些数据

项目结构如下

部分jsp，servlet代码
student.jsp

复制代码

<%--
  Created by IntelliJ IDEA.
  User: l1957
  Date: 2021/2/16
  Time: 13:18
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=GBK" language="java" pageEncoding="GBK" %>
<%@ page import="com.lqc.factory.*,com.lqc.vo.*"%>
<%@ page import="java.util.*"%>
<html>
<head>
    <title>student list</title>
</head>
<% request.setCharacterEncoding("GBK");%>
<body>
<%
    String keyWord=request.getParameter("cx");
    if(keyWord==null){
        keyWord="";
    }
    List<Student> all= null;
    try {
        all = DAOFactory.getIStudentDAOInstance().findAll(keyWord);
    } catch (Exception e) {
        e.printStackTrace();
    }
    Iterator<Student> iter=all.iterator();
%>
<center>
    <table>
        <tr>
            <td>
                <form action="${pageContext.request.contextPath}/JSP/student.jsp" method="post">
                请输入查询关键字：<input type="text" name="cx">
                <input type="submit" value="查询">
            </form>
            </td>
            <td>
                <form action="${pageContext.request.contextPath}/JSP/addstudent.jsp" method="post">
                    <input type="submit" value="增加">
                </form>
            </td>
        </tr>
    </table>

</tr>

<%
            }
        %>
    </table>
</center>
</body>
</html>

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<%--
  Created by IntelliJ IDEA.
  User: l1957
  Date: 2021/2/16
  Time: 13:18
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=GBK" language="java" pageEncoding="GBK" %>
<%@ page import="com.lqc.factory.*,com.lqc.vo.*"%>
<%@ page import="java.util.*"%>
<html>
<head>
    <title>student list</title>
</head>
<% request.setCharacterEncoding("GBK");%>
<body>
<%
    String keyWord=request.getParameter("cx");
    if(keyWord==null){
        keyWord="";
    }
    List<Student> all= null;
    try {
        all = DAOFactory.getIStudentDAOInstance().findAll(keyWord);
    } catch (Exception e) {
        e.printStackTrace();
    }
    Iterator<Student> iter=all.iterator();
%>
<center>
    <table>
        <tr>
            <td>
                <form action="${pageContext.request.contextPath}/JSP/student.jsp" method="post">
                请输入查询关键字：<input type="text" name="cx">
                <input type="submit" value="查询">
            </form>
            </td>
            <td>
                <form action="${pageContext.request.contextPath}/JSP/addstudent.jsp" method="post">
                    <input type="submit" value="增加">
                </form>
            </td>
        </tr>
    </table>

    <table border="1" width="80%">
        <tr>
            <td>学号</td>
            <td>姓名</td>
            <td>性别</td>
            <td>生日</td>
            <td>电话</td>
            <td>操作</td>
        </tr>
        <%
            while(iter.hasNext()){
                Student student=iter.next();
        %>
        <tr>
            <td><%=student.getSno()%></td>
            <td><%=student.getSname()%></td>
            <td><%=student.getSex()%></td>
            <td><%=student.getSbirth()%></td>
            <td><%=student.getSphone()%></td>
            <td><a href="${pageContext.request.contextPath}/ChangeStudent?sno=<%=student.getSno()%>">修改</a>&nbsp;
                <a href="${pageContext.request.contextPath}/DelStudent?sno=<%=student.getSno()%>" >删除</a></td>

        </tr>

        <%
            }
        %>
    </table>
</center>
</body>
</html>

addstudent.jsp

复制代码

<%--
  Created by IntelliJ IDEA.
  User: l1957
  Date: 2021/2/17
  Time: 13:07
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>addstudent</title>
</head>
<body>
<form action= "${pageContext.request.contextPath}/AddStudent"  method="post">
    <table border="0" width="238" height="252" align="center">
        <tr><th colspan="2">添加学生信息</th></tr>
        <tr> <td>学号</td> <td><input type="text" id="sno" name="sno"></td> </tr>
        <tr> <td>姓名</td> <td><input type="text" id="sname" name="sname"></td> </tr>
        <tr> <td>性别</td> <td><input type="text" id="sex" name="sex" ></td> </tr>
        <tr> <td>生日</td> <td><input type="text" id="sbirth" name="sbirth"></td> </tr>
        <tr> <td>电话</td> <td><input type="text" id="sphone" name="sphone"></td> </tr>
        <tr align="center">
            <td colspan="2">
                <input  type="submit" value="提  交">    
                <input  type="reset" value="取  消">
            </td>
        </tr>
    </table>
</form>
</body>
</html>

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<%--
  Created by IntelliJ IDEA.
  User: l1957
  Date: 2021/2/17
  Time: 13:07
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>addstudent</title>
</head>
<body>
<form action= "${pageContext.request.contextPath}/AddStudent"  method="post">
    <table border="0" width="238" height="252" align="center">
        <tr><th colspan="2">添加学生信息</th></tr>
        <tr> <td>学号</td> <td><input type="text" id="sno" name="sno"></td> </tr>
        <tr> <td>姓名</td> <td><input type="text" id="sname" name="sname"></td> </tr>
        <tr> <td>性别</td> <td><input type="text" id="sex" name="sex" ></td> </tr>
        <tr> <td>生日</td> <td><input type="text" id="sbirth" name="sbirth"></td> </tr>
        <tr> <td>电话</td> <td><input type="text" id="sphone" name="sphone"></td> </tr>
        <tr align="center">
            <td colspan="2">
                <input  type="submit" value="提  交"> &nbsp;&nbsp;&nbsp;
                <input  type="reset" value="取  消">
            </td>
        </tr>
    </table>
</form>
</body>
</html>

AddStudentServlet

复制代码

package com.lqc.servlet;

import com.lqc.factory.DAOFactory;
import com.lqc.vo.Student;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;

public class AddStudentServlet extends HttpServlet {
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //设置编码
        req.setCharacterEncoding("utf-8");
        resp.setCharacterEncoding("utf-8");
        resp.setContentType("text/html;charset=UTF-8");
        //获取前台数据
        String sno = req.getParameter("sno");
        String sname = req.getParameter("sname");
        String sex=req.getParameter("sex");
        String sbirth=req.getParameter("sbirth");
        String sphone=req.getParameter("sphone");
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");
        //封装进JavaBean
        Student student=new Student();
        student.setSno(Integer.parseInt(sno));
        student.setSname(sname);
        student.setSex(sex);
        try {
            student.setSbirth(simpleDateFormat.parse(sbirth));
        } catch (ParseException e) {
            e.printStackTrace();
        }
        student.setSphone(sphone);
        try {
            if(DAOFactory.getIStudentDAOInstance().addStudent(student)){
                String forwards="/JSP/student.jsp";
                RequestDispatcher df=req.getRequestDispatcher(forwards);
                df.forward(req,resp);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

}

@Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        this.doPost(req, resp);
    }
}

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package com.lqc.servlet;

import com.lqc.factory.DAOFactory;
import com.lqc.vo.Student;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;

public class AddStudentServlet extends HttpServlet {
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //设置编码
        req.setCharacterEncoding("utf-8");
        resp.setCharacterEncoding("utf-8");
        resp.setContentType("text/html;charset=UTF-8");
        //获取前台数据
        String sno = req.getParameter("sno");
        String sname = req.getParameter("sname");
        String sex=req.getParameter("sex");
        String sbirth=req.getParameter("sbirth");
        String sphone=req.getParameter("sphone");
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");
        //封装进JavaBean
        Student student=new Student();
        student.setSno(Integer.parseInt(sno));
        student.setSname(sname);
        student.setSex(sex);
        try {
            student.setSbirth(simpleDateFormat.parse(sbirth));
        } catch (ParseException e) {
            e.printStackTrace();
        }
        student.setSphone(sphone);
        try {
            if(DAOFactory.getIStudentDAOInstance().addStudent(student)){
                String forwards="/JSP/student.jsp";
                RequestDispatcher df=req.getRequestDispatcher(forwards);
                df.forward(req,resp);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        this.doPost(req, resp);
    }
}