基于javaweb+jsp的二手物品交易管理系统

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

<div class="index-content">
    <div class="index-content-operation">
        <a class="info-detail">修改用户</a>
        <br>
        <br>
    </div>
    <br>
    <form action="UserServlet?action=edit" method="post" onsubmit="return check()">
        <input type="hidden" id="id" name="id" value="${vo.id}"/>
        
        <table class="index-content-table-add">
            <tr>

}
package com.demo.servlet;

import com.demo.util.Util;
import com.demo.service.JiaoyiService;
import com.demo.service.impl.JiaoyiServiceImpl;
import com.demo.vo.Jiaoyi;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

        com.demo.util.PageBean<Object> pb = new com.demo.util.PageBean(Integer.valueOf(pageNum != null ? pageNum : "1"), totalRecord);
        params.put("startIndex", pb.getStartIndex());
        params.put("pageSize", pb.getPageSize());
        List list = (List) wupingService.list(params).get("list");//根据分页参数startIndex、pageSize查询出来的最终结果list
        pb.setServlet("WupingServlet");
        pb.setSearchColumn(searchColumn);
        pb.setKeyword(keyword);
        pb.setList(list);
        request.getSession().setAttribute("pageBean", pb);
        request.getSession().setAttribute("list", pb.getList());

        response.sendRedirect("wuping_list.jsp");
    }
}
package com.demo.servlet;

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;

/**
 * 物品模块的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WupingService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("/WupingServlet")
public class WupingServlet extends HttpServlet {

    /**
     * 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
        params.put("keyword", keyword);//查询的关键字
        JiaoyiService jiaoyiService = new JiaoyiServiceImpl();
        Map<String, Object> map = jiaoyiService.list(params);
        request.getSession().setAttribute("list", map.get("list"));

        Integer totalRecord = (Integer) map.get("totalCount");//根据查询条件取出对应的总记录数，用于分页
        String pageNum = Util.decode(request, "pageNum");//封装分页参数
        com.demo.util.PageBean<Object> pb = new com.demo.util.PageBean(Integer.valueOf(pageNum != null ? pageNum : "1"), totalRecord);
        params.put("startIndex", pb.getStartIndex());
        params.put("pageSize", pb.getPageSize());

                str = new String(str.getBytes("GBK"), "ISO-8859-1");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("UTF-8"), "GB2312");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("ISO-8859-1"), "GB2312");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("GBK"), "GB2312");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("UTF-8"), "GBK");
            }
            if (isMessyCode(str)) {
                str = new String(str.getBytes("ISO-8859-1"), "GBK");
            }
            if (isMessyCode(str)) {

<jsp:include page="menu.jsp"/>
<div class="index-content">
    <div class="index-content-operation">
        <a class="info-detail">修改物品</a>
        <br>
        <br>
    </div>
    <br>
    <form action="WupingServlet?action=edit" method="post" onsubmit="return check()">
        <input type="hidden" id="id" name="id" value="${vo.id}"/>
        
        <table class="index-content-table-add">
            <tr>
                <td width="12%">物品名：</td><td><input class="index-content-table-td-add" type="text" id="wupingName" name="wupingName" value="${vo.wupingName}"/></td>
            </tr>
            <tr>
                <td width="12%">新旧值：</td><td><input class="index-content-table-td-add" type="text" id="wupingXin" name="wupingXin" value="${vo.wupingXin}"/></td>

    }
    /**
     * 测试连接是否成功
     *
     * @param args
     * @throws Exception
     */
    public static void main(String[] args) {
        try {
            Connection conn = Util.getConnection();
            System.out.println("数据库连接成功！！！");

    function check() {
        //根据ID获取值
        if (document.getElementById("wupingName").value.trim().length == 0) {
            alert("物品名不能为空!");
            return false;
        }
        if (document.getElementById("wupingXin").value.trim().length == 0) {
            alert("新旧值不能为空!");
            return false;
        }
        if (document.getElementById("wupingPrice").value.trim().length == 0) {
            alert("价格不能为空!");
            return false;
        }
        if (document.getElementById("wupingMiaosu").value.trim().length == 0) {
            alert("描述不能为空!");
            return false;

        if (document.getElementById("jiaoyiBuyphone").value.trim().length == 0) {
            alert("买家手机不能为空!");
            return false;
        }
        if (document.getElementById("jiaoyiDate").value.trim().length == 0) {
            alert("交易时间不能为空!");
            return false;
        }
        if (document.getElementById("jiaoyiAddress").value.trim().length == 0) {
            alert("交易地点不能为空!");
            return false;
        }
        return true;
    }
</script>
</html>
<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>

                || 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
     */
    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}", "");
        char[] ch = temp.trim().toCharArray();
        float chLength = 0;
        float count = 0;

<html>
<head>
    <meta charset="utf-8"/>
    <title>添加交易</title>
    <link rel="stylesheet" type="text/css" href="css/index.css"/>
</head>
<body>
<jsp:include page="menu.jsp"/>
<div class="index-content">
    <div class="index-content-operation">
        <a class="info-detail">添加交易</a>
        <br>
        <br>
    </div>
    <br>

            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");
        } else {//默认去列表页面
            this.redirectList(request, response);
        }
    }

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

        List list = (List) userService.list(params).get("list");//根据分页参数startIndex、pageSize查询出来的最终结果list
        pb.setServlet("UserServlet");
        pb.setSearchColumn(searchColumn);
        pb.setKeyword(keyword);
        pb.setList(list);
        request.getSession().setAttribute("pageBean", pb);
        request.getSession().setAttribute("list", pb.getList());

        response.sendRedirect("user_list.jsp");
    }
}
package com.demo.dao.impl;

import com.demo.util.Util;
import com.demo.dao.JiaoyiDAO;
import com.demo.vo.Jiaoyi;

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;

        if (document.getElementById("username").value.trim().length == 0) {
            alert("用户名不能为空!");
            return false;
        }
        if (document.getElementById("password").value.trim().length == 0) {
            alert("密码不能为空!");
            return false;
        }
        if (document.getElementById("realName").value.trim().length == 0) {
            alert("姓名不能为空!");
            return false;
        }
        if (document.getElementById("userPhone").value.trim().length == 0) {

    public void update(Wuping vo) {
        String sql = "update `t_wuping` set `wuping_name` = ? ,`wuping_xin` = ? ,`wuping_price` = ? ,`wuping_miaosu` = ? ,`wuping_ren` = ? ,`wuping_phone` = ? ,`wuping_status` = ? ,`wuping_text` = ?  where `id` = ?";
        try {
            Connection c = Util.getConnection();
            PreparedStatement ps = c.prepareStatement(sql);
            
            ps.setString(1, vo.getWupingName());
            ps.setString(2, vo.getWupingXin());
            ps.setString(3, vo.getWupingPrice());
            ps.setString(4, vo.getWupingMiaosu());
            ps.setString(5, vo.getWupingRen());
            ps.setString(6, vo.getWupingPhone());
            ps.setString(7, vo.getWupingStatus());
            ps.setString(8, vo.getWupingText());
            ps.setLong(9, vo.getId());
            ps.execute();
            ps.close();
            c.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

                || 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}", "");
        char[] ch = temp.trim().toCharArray();
        float chLength = 0;
        float count = 0;
        for (int i = 0; i < ch.length; i++) {
            char c = ch[i];

import javax.imageio.ImageIO;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
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")

            alert("卖家手机不能为空!");
            return false;
        }
        if (document.getElementById("jiaoyiBuy").value.trim().length == 0) {
            alert("买家不能为空!");
            return false;
        }
        if (document.getElementById("jiaoyiBuyphone").value.trim().length == 0) {
            alert("买家手机不能为空!");
            return false;
        }

            </tr>
            <tr>
                <td width="12%">买家：</td><td><input class="index-content-table-td-add" type="text" id="jiaoyiBuy" name="jiaoyiBuy" value="${vo.jiaoyiBuy}"/></td>
            </tr>
            <tr>
                <td width="12%">买家手机：</td><td><input class="index-content-table-td-add" type="text" id="jiaoyiBuyphone" name="jiaoyiBuyphone" value="${vo.jiaoyiBuyphone}"/></td>
            </tr>
            <tr>
                <td width="12%">交易时间：</td><td><input class="index-content-table-td-add" type="text" id="jiaoyiDate" name="jiaoyiDate" value="${vo.jiaoyiDate}"/></td>
            </tr>
            <tr>
                <td width="12%">交易地点：</td><td><input class="index-content-table-td-add" type="text" id="jiaoyiAddress" name="jiaoyiAddress" value="${vo.jiaoyiAddress}"/></td>
            </tr>
            <tr>
                <td width="12%">备注：</td><td><textarea id="jiaoyiText" name="jiaoyiText" style="width: 60%; height: 100px;padding: 0px 17px;" placeholder="请输入内容......">${vo.jiaoyiText}</textarea></td>
            </tr>

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;

        }
        try {
            Connection c = Util.getConnection();
            PreparedStatement ps;
            ResultSet rs;
            String limit = (params.get("startIndex") != null && params.get("pageSize") != null) ? " limit " + params.get("startIndex") + "," + params.get("pageSize") : "";
                sqlList = "select * from `t_user` where 1=1 " + condition + " order by id asc " + limit + ";";
                ps = c.prepareStatement(sqlList);
                rs = ps.executeQuery();
                while (rs.next()) {
                    User 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"));
                    list.add(vo);
                }
            String sqlCount = "select count(*) from `t_user` where 1=1 " + condition;
            ps = c.prepareStatement(sqlCount);
            rs = ps.executeQuery();

            ps.setString(5, vo.getJiaoyiBuyphone());
            ps.setString(6, vo.getJiaoyiDate());
            ps.setString(7, vo.getJiaoyiAddress());
            ps.setString(8, vo.getJiaoyiText());
            ps.execute();
            ps.close();
            c.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    //@Override
    public void update(Jiaoyi vo) {
        String sql = "update `t_jiaoyi` set `jiaoyi_name` = ? ,`jiaoyi_sale` = ? ,`jiaoyi_phone` = ? ,`jiaoyi_buy` = ? ,`jiaoyi_buyphone` = ? ,`jiaoyi_date` = ? ,`jiaoyi_address` = ? ,`jiaoyi_text` = ?  where `id` = ?";
        try {
            Connection c = Util.getConnection();
            PreparedStatement ps = c.prepareStatement(sql);
            

            //vo.setUserType("普通用户");//需要设置一个默认值
            userService.add(vo);
            request.getSession().setAttribute("alert_msg", "注册成功！用户名：[" + username + "]");
            request.getRequestDispatcher("login.jsp").forward(request, response);
        } else if ("logout".equalsIgnoreCase(action)) {//登出
            HttpSession session = request.getSession();
            User user = (User) session.getAttribute("loginUser");
            if (user != null) {
                session.removeAttribute("loginUser");
            }

            Connection c = Util.getConnection();
            PreparedStatement ps;
            ResultSet rs;
            String limit = (params.get("startIndex") != null && params.get("pageSize") != null) ? " limit " + params.get("startIndex") + "," + params.get("pageSize") : "";
                sqlList = "select * from `t_jiaoyi` where 1=1 " + condition + " order by id asc " + limit + ";";
                ps = c.prepareStatement(sqlList);
                rs = ps.executeQuery();
                while (rs.next()) {
                    Jiaoyi vo = new Jiaoyi();
                    vo.setId(rs.getLong("id"));
                    vo.setJiaoyiName(rs.getString("jiaoyi_name"));

                vo.setId(rs.getLong("id"));
                vo.setNoticeName(rs.getString("notice_name"));
                vo.setNoticeText(rs.getString("notice_text"));
                vo.setNoticeType(rs.getString("notice_type"));
                vo.setCreateDate(rs.getString("create_date"));
            }
            c.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return vo;
    }

    //@Override
    public Map<String, Object> list(Map<String, Object> params) {
        List<Notice> list = new ArrayList();

            condition += " and `" + params.get("searchColumn") + "` like '%" + params.get("keyword") + "%'";
        }
        try {
            Connection c = Util.getConnection();
            PreparedStatement ps;
            ResultSet rs;
            String limit = (params.get("startIndex") != null && params.get("pageSize") != null) ? " limit " + params.get("startIndex") + "," + params.get("pageSize") : "";
                sqlList = "select * from `t_user` where 1=1 " + condition + " order by id asc " + limit + ";";
                ps = c.prepareStatement(sqlList);
                rs = ps.executeQuery();
                while (rs.next()) {
                    User 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"));

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、物品模块、交易模块的增删改查管理

↖[获取源码方式]见左侧