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基于javaweb+jsp的大学生个人财务记账系统

回溯 2022-03-26 阅读 45
java-eetomcatmysql

JavaWeb JavaBean JSP MVC MySQL Tomcat JavaScript Bootstrap.

基础JSP+Servlet或JSP+SSM(Spring、SpringMVC、MyBatis)框架或JSP+SSM+Maven(pom.xml)框架或SpringBoot…均可

开发工具：eclipse/idea/myeclipse/sts等均可配置运行

适用

课程设计，大作业，毕业设计，项目练习，学习演示等

     * @throws ServletException
     * @throws IOException
     */
    @Override
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doPost(request, response);//Get请求和Post请求的处理是一样的，所以把request、response转交给Post方法就好
    }

    /**
     * 根据参数，查询出条例条件的记录集合，最后将数据返回给调用处或者将数据集合设置到session域里，再跳转到对应的列表页面
     *
     * @param request
     * @param response
     */
    private void redirectList(HttpServletRequest request, HttpServletResponse response) throws IOException {
        //查询列和关键字
        String searchColumn = Util.decode(request, "searchColumn");
        String keyword = Util.decode(request, "keyword");
        Map<String, Object> params = new HashMap();//用来保存控制层传进来的参数(查询条件)
        params.put("searchColumn", searchColumn);//要查询的列

     */
    public static String decode(javax.servlet.http.HttpServletRequest request, String parameterName) {
        String str;
        if ((str = request.getParameter(parameterName)) == null) {
            return null;
        }
        try {
            if (isMessyCode(str)) {
                str = new String(str.getBytes("ISO-8859-1"), "UTF-8");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("GB2312"), "UTF-8");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("GBK"), "UTF-8");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("UTF-8"), "ISO-8859-1");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("GB2312"), "ISO-8859-1");

            Statement s = c.createStatement();
            String sql = "select * from `t_user` where id = " + id;
            ResultSet rs = s.executeQuery(sql);
            if (rs.next()) {
                vo = new User();
                vo.setId(rs.getLong("id"));
                vo.setUsername(rs.getString("username"));
                vo.setPassword(rs.getString("password"));
                vo.setRealName(rs.getString("real_name"));
                vo.setUserSex(rs.getString("user_sex"));
                vo.setUserPhone(rs.getString("user_phone"));
                vo.setUserText(rs.getString("user_text"));
                vo.setUserType(rs.getString("user_type"));
            }
            c.close();
        } catch (Exception e) {
            e.printStackTrace();

            ps.setString(5, vo.getZhichuText());
            ps.setLong(6, vo.getId());
            ps.execute();
            ps.close();
            c.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    //@Override
    public boolean delete(long id) {
        try {

            User vo = new User();
            vo.setId(Long.valueOf(Util.decode(request, "id")));
            vo.setUsername(Util.decode(request, "username"));
            vo.setPassword(Util.decode(request, "password"));
            vo.setRealName(Util.decode(request, "realName"));
            vo.setUserSex(Util.decode(request, "userSex"));
            vo.setUserPhone(Util.decode(request, "userPhone"));
            vo.setUserText(Util.decode(request, "userText"));
            vo.setUserType(Util.decode(request, "userType"));
            UserService userService = new UserServiceImpl();
            //调用Service层更新方法（update），更新记录
            userService.update(vo);
            this.redirectList(request, response);
        } else if ("get".equalsIgnoreCase(action) || "editPre".equalsIgnoreCase(action)) {//根据主键ID，查询详情信息并跳转到详情页面或编辑页面
            Serializable id = Util.decode(request, "id");//取出页面传入的主键，用于查询详情
            UserService userService = new UserServiceImpl();
            User vo = userService.get(id);
            request.getSession().setAttribute("vo", vo);
            String to = "get".equalsIgnoreCase(action) ? "info" : "edit";//判断是去详情显示页面还是编辑页面
            response.sendRedirect("user_" + to + ".jsp");

            <tr>
                <td width="12%">备注：</td><td><textarea id="userText" name="userText" style="width: 60%; height: 100px;padding: 0px 17px;" placeholder="请输入内容......">${vo.userText}</textarea></td>
            </tr>
            <tr>
                <td width="12%">类型：</td>
                <td>
                   <input <c:if test="${loginUser.userType != '管理员'}">disabled="disabled" title="没有权限！！！"</c:if> name="userType" type="radio" value="管理员" ${vo.userType=='管理员'?'checked':''}/>&nbsp;&nbsp;&nbsp;管理员&nbsp;&nbsp;&nbsp;&nbsp;
                   <input name="userType" type="radio" value="普通用户" ${vo.userType=='普通用户'?'checked':''}/>&nbsp;&nbsp;&nbsp;普通用户&nbsp;&nbsp;&nbsp;&nbsp;
                </td>
            </tr>
        </table>
        <br>
        <br>
        <br>

     * @param response
     * @throws ServletException
     * @throws IOException
     */
    @Override
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //过滤编码
        request.setCharacterEncoding("UTF-8");
        response.setCharacterEncoding("UTF-8");
        String action = Util.decode(request, "action");
        if ("add".equals(action)) {//增加
            Shouru vo = new Shouru();

        Character.UnicodeBlock ub = Character.UnicodeBlock.of(c);
        return (ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS
                || ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS
                || ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A
                || ub == Character.UnicodeBlock.GENERAL_PUNCTUATION
                || ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION
                || ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS);
    }

    /**
     * 判断字符串是否是乱码
     *
     * @param strName
     * @return

            rs.close();
            ps.close();
            c.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        Map<String, Object> result = new HashMap();
        result.put("list", list);
        result.put("totalCount", totalCount);
        return result;
    }
}
package com.demo.dao.impl;

import com.demo.util.Util;
import com.demo.dao.ShouruDAO;
import com.demo.vo.Shouru;


import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.Serializable;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * Notice模块的Servlet控制层，负责接收页面传过来的请求参数，根据action参数的值来确定页面要执行的具体操作<br>
 * 而后再调用NoticeService业务层的方法来处理具体的业务，最后将处理完成的结果返回或跳转至相应页面
 */
//@WebServlet("/NoticeServlet")
public class NoticeServlet extends HttpServlet {


        return result;
    }
}
package com.demo.dao.impl;

import com.demo.util.Util;
import com.demo.dao.NoticeDAO;
import com.demo.vo.Notice;

import java.io.Serializable;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.HashMap;

            e.printStackTrace();
            System.out.println("数据库连接失败！！！");
        }
    }
    /**
     * 获取系统当前时间并格式化为字符串
     *
     * @return
     */
    public static String getTime() {
        return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(System.currentTimeMillis());
    }
    /**
     * 判断字符串是不是中文

            Serializable id = Util.decode(request, "id");//取出页面传入的主键，用于查询详情
            NoticeService noticeService = new NoticeServiceImpl();
            Notice vo = noticeService.get(id);
            request.getSession().setAttribute("vo", vo);
            String to = "get".equalsIgnoreCase(action) ? "info" : "edit";//判断是去详情显示页面还是编辑页面
            response.sendRedirect("notice_" + to + ".jsp");
        } else {//默认去列表页面
            this.redirectList(request, response);
        }
    }

    /**
     * 处理Get请求
     *
     * @param request
     * @param response
     * @throws ServletException

            c.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    //@Override
    public boolean delete(long id) {
        try {
            Connection c = Util.getConnection();
            Statement s = c.createStatement();
            String sql = "delete from `t_zhichu` where id = " + id;
            s.execute(sql);
            s.close();
            c.close();
            return true;
        } catch (Exception e) {
            e.printStackTrace();

            NoticeService noticeService = new NoticeServiceImpl();
            //调用Service层删除方法（delete），将对应的记录删除
            noticeService.delete(id);
            this.redirectList(request, response);
        } else if ("edit".equals(action)) {//修改
            //取出页面传进来的各个数据，并设置到Notice对象的属性里
            Notice vo = new Notice();
            vo.setId(Long.valueOf(Util.decode(request, "id")));
            vo.setNoticeName(Util.decode(request, "noticeName"));
            vo.setNoticeText(Util.decode(request, "noticeText"));
            vo.setNoticeType(Util.decode(request, "noticeType"));
            vo.setCreateDate(Util.decode(request, "createDate"));
            NoticeService noticeService = new NoticeServiceImpl();
            //调用Service层更新方法（update），更新记录
            noticeService.update(vo);

        <c:forEach items="${list}" var="vo">
            <tr class="index-content-table-td">
                <td>${vo.username}</td>
                <td>${vo.realName}</td>
                <td>${vo.userSex}</td>
                <td>${vo.userPhone}</td>
                <td title="${vo.userText}">
                <c:choose>
                    <c:when test="${fn:length(vo.userText) > 19}">
                        <c:out value="${fn:substring(vo.userText, 0, 19)}..."/>
                    </c:when>
                    <c:otherwise>
                        <c:out value="${vo.userText}"/>
                    </c:otherwise>
                </c:choose>
                </td>
                <td>${vo.userType}</td>
                <td>
                    <button class="btn btn-line btn-success btn-sm" style="padding: 0px 1px;" onclick="window.location.href='UserServlet?action=get&id=${vo.id}'">详情</button>&nbsp;
                    <button class="btn btn-line btn-warning btn-sm" style="padding: 0px 1px;"
                            <c:if test="${loginUser.userType != '管理员' && vo.id != loginUser.id}">disabled="disabled" title="没有权限！！！"</c:if>

    /**
     * 为防止页面传进来的内容因为编码不同等原因造成乱码，这里作统一的转换
     *
     * @param parameterName
     * @return
     */
    public static String decode(javax.servlet.http.HttpServletRequest request, String parameterName) {
        String str;
        if ((str = request.getParameter(parameterName)) == null) {
            return null;
        }
        try {
            if (isMessyCode(str)) {
                str = new String(str.getBytes("ISO-8859-1"), "UTF-8");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("GB2312"), "UTF-8");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("GBK"), "UTF-8");
            }
            if (isMessyCode(str)) {


    //@Override
    public Notice get(Serializable id) {
        Notice vo = null;
        try {
            Connection c = Util.getConnection();
            Statement s = c.createStatement();
            String sql = "select * from `t_notice` where id = " + id;
            ResultSet rs = s.executeQuery(sql);
            if (rs.next()) {
                vo = new Notice();
                vo.setId(rs.getLong("id"));

    //@Override
    public void add(User vo) {
        String sql = "insert into `t_user` (`username`,`password`,`real_name`,`user_sex`,`user_phone`,`user_text`,`user_type`) values(?,?,?,?,?,?,?)";
        try {
            Connection c = Util.getConnection();
            PreparedStatement ps = c.prepareStatement(sql);
            
            ps.setString(1, vo.getUsername());
            ps.setString(2, vo.getPassword());
            ps.setString(3, vo.getRealName());
            ps.setString(4, vo.getUserSex());
            ps.setString(5, vo.getUserPhone());
            ps.setString(6, vo.getUserText());
            ps.setString(7, vo.getUserType());
            ps.execute();
            ps.close();
            c.close();
        } catch (Exception e) {
            e.printStackTrace();
        }

import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Random;

//@WebServlet("/AuthServlet")
public class AuthServlet extends HttpServlet {
    @Override
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //过滤编码
        request.setCharacterEncoding("UTF-8");
        response.setCharacterEncoding("UTF-8");

        request.setCharacterEncoding("UTF-8");
        response.setCharacterEncoding("UTF-8");
        String action = Util.decode(request, "action");
        if ("login".equalsIgnoreCase(action)) {//登录
            String username = Util.decode(request, "username");
            String password = Util.decode(request, "password");

            String validationCode = Util.decode(request, "validationCode");
            if (validationCode != null && !validationCode.equals(request.getSession().getAttribute("validationCode"))) {//验证码不通过
                request.getSession().setAttribute("alert_msg", "错误：验证码不正确！");

                totalCount = rs.getInt(1);
            }
            rs.close();
            ps.close();
            c.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        Map<String, Object> result = new HashMap();
        result.put("list", list);


/**
 * Notice模块的DAO层（数据层）的具体实现类，对NoticeDAO接口中定义的增删改查等抽象方法作出具体的功能实现
 */
public class NoticeDAOImpl implements NoticeDAO {

    //@Override
    public void add(Notice vo) {
        String sql = "insert into `t_notice` (`notice_name`,`notice_text`,`notice_type`,`create_date`) values(?,?,?,?)";
        try {
            Connection c = Util.getConnection();

                || ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION
                || ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS);
    }

    /**
     * 判断字符串是否是乱码
     *
     * @param strName
     * @return
     */
    public static boolean isMessyCode(String strName) {
        java.util.regex.Pattern p = java.util.regex.Pattern.compile("\\s*|\t*|\r*|\n*");
        java.util.regex.Matcher m = p.matcher(strName);
        String after = m.replaceAll("");
        String temp = after.replaceAll("\\p{P}", "");

                </c:choose>
                </td>
                <td>
                    <button class="btn btn-line btn-success btn-sm" style="padding: 0px 1px;" onclick="window.location.href='ShouruServlet?action=get&id=${vo.id}'">详情</button>&nbsp;
                    <button class="btn btn-line btn-warning btn-sm" style="padding: 0px 1px;"
                            <c:if test="${loginUser.userType != '管理员'}">disabled="disabled" title="没有权限！！！"</c:if>
                    οnclick="window.location.href='ShouruServlet?action=editPre&id=${vo.id}'">编辑</button>&nbsp;
                    <button class="btn btn-line btn-warning btn-sm" style="padding: 0px 1px;" <c:if test="${loginUser.userType != '管理员'}">disabled="disabled" title="没有权限！！！"</c:if> οnclick="if(window.confirm('将要删除：${vo.shouruName}？'))window.location.href='ShouruServlet?action=delete&id=${vo.id}'">删除</button>
                </td>
            </tr>
        </c:forEach>
        </tbody>
    </table>
    <div style="float: right;padding-right: 10px;color: #515151;"><jsp:include page="split.jsp"/></div>
</div>
</body>
<script>
    function searchList() {
        window.location.href = "ShouruServlet?action=list&searchColumn="+document.getElementById("searchColumn").value+"&keyword=" + document.getElementById("search_keyword").value;
    }

                <td width="12%">性别：</td>
                <td>
                   <input name="userSex" type="radio" value="男" ${vo.userSex=='男'?'checked':''}/>&nbsp;&nbsp;&nbsp;男&nbsp;&nbsp;&nbsp;&nbsp;
                   <input name="userSex" type="radio" value="女" ${vo.userSex=='女'?'checked':''}/>&nbsp;&nbsp;&nbsp;女&nbsp;&nbsp;&nbsp;&nbsp;
                </td>
            </tr>
            <tr>
                <td width="12%">手机：</td><td><input class="index-content-table-td-add" type="text" id="userPhone" name="userPhone" value="${vo.userPhone}"/></td>
            </tr>
            <tr>
                <td width="12%">备注：</td><td><textarea id="userText" name="userText" style="width: 60%; height: 100px;padding: 0px 17px;" placeholder="请输入内容......">${vo.userText}</textarea></td>
            </tr>
            <tr>
                <td width="12%">类型：</td>
                <td>
                   <input <c:if test="${loginUser.userType != '管理员'}">disabled="disabled" title="没有权限！！！"</c:if> name="userType" type="radio" value="管理员" ${vo.userType=='管理员'?'checked':''}/>&nbsp;&nbsp;&nbsp;管理员&nbsp;&nbsp;&nbsp;&nbsp;
                   <input name="userType" type="radio" value="普通用户" ${vo.userType=='普通用户'?'checked':''}/>&nbsp;&nbsp;&nbsp;普通用户&nbsp;&nbsp;&nbsp;&nbsp;
                </td>
            </tr>
        </table>
        <br>
        <br>

<div class="index-content">
    <div class="index-content-operation">
        <a class="info-detail">用户管理</a>
        <br>
        <br>
    </div>
    <br>
    <div class="index-content-operation">
        <button class="btn btn-line btn-primary btn-sm" <c:if test="${loginUser.userType != '管理员'}">disabled="disabled" title="没有权限！！！"</c:if> οnclick="window.location.href='user_add.jsp'">添加</button>
        <div class="index-content-operation-search"><input id="search_keyword" placeholder="姓名" type="text" name="search_keyword"/><input type="hidden" id="searchColumn" name="searchColumn" value="real_name"/><button class="btn btn-line btn-info btn-sm" onclick="searchList()">搜索</button></div>
    </div>
    <br>
    <table class="table table-striped table-hover table-bordered">
        <thead>
        <tr class="index-content-table-th">
            <th>用户名</th>

import com.demo.util.Util;
import com.demo.service.UserService;
import com.demo.service.impl.UserServiceImpl;
import com.demo.vo.User;
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.io.Serializable;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * User模块的Servlet控制层，负责接收页面传过来的请求参数，根据action参数的值来确定页面要执行的具体操作<br>
 * 而后再调用UserService业务层的方法来处理具体的业务，最后将处理完成的结果返回或跳转至相应页面
 */
//@WebServlet("/UserServlet")
public class UserServlet extends HttpServlet {

    /**

运行环境

Java≥6、Tomcat≥7.0、MySQL≥5.5

开发工具

eclipse/idea/myeclipse/sts等均可配置运行

技术框架

JavaWeb JavaBean JSP MVC MySQL Tomcat JavaScript Bootstrap.

基础JSP+Servlet或JSP+SSM(Spring、SpringMVC、MyBatis)框架或JSP+SSM+Maven(pom.xml)框架或SpringBoot…均可

适用

课程设计，大作业，毕业设计，项目练习，学习演示等

功能说明

登录、注册、退出、用户模块、公告模块、收入模块、支出模块的增删改查管理

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document

↖[获取源码方式]见左侧

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