基于javaweb+jsp的二手物品交易管理系统(JavaWeb JSP MySQL Servlet SSM SpringBoot Layui Ajax)

JavaWeb JavaBean JSP MVC MySQL Tomcat JavaScript Layui Ajax

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

     */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response.getWriter().println(com.alibaba.fastjson.JSONObject.toJSONString(wupingService.list(params).get("list")));}
}
package com.demo.controller;import com.demo.util.Util;

<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<html>
<head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1"><title>二手物品交易管理系统</title><link rel="stylesheet" href="js/layui/css/layui.css"><script src="js/jquery.js"></script><script src="js/layer.js"></script>
</head>
<body class="layui-layout-body">
<div class="layui-layout layui-layout-admin"><div class="layui-header"><div class="layui-logo" style="font-weight: bold;font-size: 19px">二手物品交易管理系统</div><ul class="layui-nav layui-layout-left"></ul><c:if test="${loginUser==null}"><ul class="layui-nav layui-layout-right"><li class="layui-nav-item"><a href="login.jsp">请登录</a></li></ul></c:if><c:if test="${loginUser!=null}"><ul class="layui-nav layui-layout-right"><li class="layui-nav-item"><a>${loginUser.username}</a></li><li class="layui-nav-item"><a href="authLogout">退出登录</a></li>

            //  随机设置当前验证码的字符的字体g.setFont(new Font(fontNames[random.nextInt(3)], Font.ITALIC, height));//  随机获得当前验证码的字符char codeChar = codeChars.charAt(random.nextInt(charsLength));validationCode.append(codeChar);//  随机设置当前验证码字符的颜色g.setColor(getRandomColor(10, 100));//  在图形上输出验证码字符，x和y都是随机生成的g.drawString(String.valueOf(codeChar), 16 * i + random.nextInt(7), height - random.nextInt(6));}HttpSession session = request.getSession();session.setMaxInactiveInterval(5 * 60);//  将验证码保存在session对象中，key为validation_code

    </div><div class="layui-form-item"><label class="layui-form-label">联系方式：</label><div class="layui-input-block"><input type="text" name="wupingPhone" lay-verify="required|wupingPhone" class="layui-input" value="${vo.wupingPhone}"></div></div><div class="layui-form-item"><label class="layui-form-label">状态：</label><div class="layui-input-block"><input name="wupingStatus" type="radio" value="已出售" ${vo.wupingStatus=='已出售'?'checked':''} class="layui-input" title="已出售"/><input name="wupingStatus" type="radio" value="未出售" ${vo.wupingStatus=='未出售'?'checked':''} class="layui-input" title="未出售"/><input name="wupingStatus" type="radio" value="已取消" ${vo.wupingStatus=='已取消'?'checked':''} class="layui-input" title="已取消"/></div></div><div class="layui-form-item"><label class="layui-form-label">备注：</label><div class="layui-input-block"><textarea type="text" name="wupingText" class="layui-input" style="height: 100px;padding-left: 10px;" placeholder="请输入内容......">${vo.wupingText}</textarea>

    }
}
package com.demo.vo;import java.io.Serializable;/*** 交易（t_jiaoyi表对应的Java实体类）*/
public class Jiaoyi implements Serializable {private Long id;//主键private String jiaoyiName;//物品名private String jiaoyiSale;//卖家private String jiaoyiPhone;//卖家手机private String jiaoyiBuy;//买家private String jiaoyiBuyphone;//买家手机private String jiaoyiDate;//交易时间private String jiaoyiAddress;//交易地点private String jiaoyiText;//备注

                let result = this.page.curr ? res.slice(this.limit * (this.page.curr - 1), this.limit * this.page.curr) : res.slice(0, this.limit);return {"code": 0, //解析接口状态"msg": '', //解析提示文本"count": res.length, //解析数据长度（集合个数）"data": result //解析数据列表};},page: { //支持传入 laypage 组件的所有参数（某些参数除外，如：jump/elem） - 详见文档layout: ['limit', 'count', 'prev', 'page', 'next', 'skip'], //自定义分页布局groups: 1, //只显示 1 个连续页码first: false, //不显示首页last: false, //不显示尾页},

import com.demo.util.Util;
import com.demo.vo.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;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.*;

        String codeChars = "0123456789";// 图形验证码的字符集合，系统将随机从这个字符串中选择一些字符作为验证码//  获得验证码集合的长度int charsLength = codeChars.length();//  下面三条记录是关闭客户端浏览器的缓冲区//  这三条语句都可以关闭浏览器的缓冲区，但是由于浏览器的版本不同，对这三条语句的支持也不同//  因此，为了保险起见，建议同时使用这三条语句来关闭浏览器的缓冲区response.setHeader("ragma", "No-cache");response.setHeader("Cache-Control", "no-cache");response.setDateHeader("Expires", 0);//  设置图形验证码的长和宽（图形的大小）int width = 90, height = 20;BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);Graphics g = image.getGraphics();//  获得用于输出文字的Graphics对象Random random = new Random();g.setColor(getRandomColor(180, 250));// 随机设置要填充的颜色

        <div class="search_style" style="padding-top: 10px;padding-left: 15px;"><div class="searchTable">搜索：<div class="layui-inline"><input class="layui-input" name="search_keyword" id="search_keyword" autocomplete="off" placeholder="物品名"><input type="hidden" class="layui-input" name="searchColumn" id="searchColumn" autocomplete="off" value="wuping_name"></div><button class="layui-btn" data-type="reload">搜索</button></div></div><!-- 内容主体区域 --><table class="layui-hide" id="myData" lay-filter="myTable"></table></div>
</div>
<script src="js/layui/layui.js"/>
<script>//JavaScript代码区域layui.use('element', function () {let element = layui.element;});
</script>
<script type="text/html" id="myToolbar"><div class="layui-btn-container"><c:if test="${loginUser.userType == '管理员'}"><button class='layui-btn layui-btn-sm' lay-event='add'>添加</button></c:if></div>

</script>
<script>function arrayBufferToBase64(buffer) {let binary = '';let bytes = new Uint8Array(buffer);let len = bytes.byteLength;for (let i = 0; i < len; i++) {binary += String.fromCharCode(bytes[i]);}return window.btoa(binary);}layui.use('table', function () {let table = layui.table;table.render({elem: '#myData',id: 'myTable',url: 'jiaoyiList',parseData: function (res) { //res：即为原始返回的数据

    public void setJiaoyiAddress(String jiaoyiAddress) {this.jiaoyiAddress = jiaoyiAddress;}public String getJiaoyiText() {return jiaoyiText;}public void setJiaoyiText(String jiaoyiText) {this.jiaoyiText = jiaoyiText;}
}
package com.demo.vo;import java.io.Serializable;/*** 物品（t_wuping表对应的Java实体类）

    <!--新增--><insert id="doCreate" useGeneratedKeys="true" keyColumn="id" keyProperty="id" parameterType="com.demo.vo.User">INSERT INTO `t_user`<trim prefix="(" suffix=")" suffixOverrides=","><if test ='id != null'>`id`,</if><if test ='username != null'>`username`,</if><if test ='password != null'>`password`,</if><if test ='realName != null'>`real_name`,</if><if test ='userSex != null'>`user_sex`,</if><if test ='userPhone != null'>`user_phone`,</if><if test ='userText != null'>`user_text`,</if><if test ='userType != null'>`user_type`</if></trim><trim prefix="values (" suffix=")" suffixOverrides=","><if test ='id != null'>#{id},</if><if test ='username != null'>#{username},</if><if test ='password != null'>#{password},</if><if test ='realName != null'>#{realName},</if><if test ='userSex != null'>#{userSex},</if><if test ='userPhone != null'>#{userPhone},</if><if test ='userText != null'>#{userText},</if><if test ='userType != null'>#{userType}</if></trim></insert>

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 Layui Ajax

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