基于javaweb+jsp的二手物品交易管理系统

最新推荐文章于 2025-05-22 23:49:05 发布

m0_70404511

最新推荐文章于 2025-05-22 23:49:05 发布

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文章标签： java mysql

本文链接：https://blog.youkuaiyun.com/m0_70404511/article/details/124520771

版权

本文介绍了使用Java、JSP、MVC、MySQL和Tomcat构建的二手物品交易管理系统的实现过程，包括User实体操作、登录拦截器、表单验证和前端界面。适合课程设计、大作业及项目实战。

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基于javaweb+jsp的二手物品交易管理系统

JavaWeb JavaBean JSP MVC MySQL Tomcat JavaScript Bootstrap Ajax

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

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

    <sql id="Base_Column_List">
        `id`,`username`,`password`,`real_name`,`user_sex`,`user_phone`,`user_text`,`user_type`
    </sql>

    <!--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>

    public void setWupingText(String wupingText) {
        this.wupingText = wupingText;
    }
}
package com.demo.util;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * 拦截器
 */
public class LoginInterceptor implements HandlerInterceptor {

    //@Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object o) throws Exception {
        HttpSession session = request.getSession();
        //移除错误提示

            alert("价格不能为空");
            return false;
        }
        if (document.getElementById("add-wupingMiaosu").value.trim().length == 0) {
            alert("描述不能为空");
            return false;
        }
        if (document.getElementById("add-wupingRen").value.trim().length == 0) {
            alert("联系人不能为空");
            return false;
        }
        if (document.getElementById("add-wupingPhone").value.trim().length == 0) {
            alert("联系方式不能为空");
            return false;
        }
        return true;

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

                        <label for="add-userPhone" class="control-label">手机:</label>
                        <input type="text" class="form-control" name="userPhone" id="add-userPhone">
                    </div>
                    <div class="form-group">
                        <label for="add-userText" class="control-label">备注:</label>
                        <textarea style="height: 100px;" class="form-control" name="userText" id="add-userText"></textarea>
                    </div>
                    <div class="form-group">
                        <label class="control-label">类型:</label>
                        <input name="userType" id="add-userType_管理员" type="radio" value="管理员" checked="checked"/>管理员
                        <input name="userType" id="add-userType_普通用户" type="radio" value="普通用户"/>普通用户
                    </div>
                </div>

                            <td style="width: 15%;">备注:</td>
                            <td><b id="info-userText"></b></td>
                        </tr>
                        <tr>
                            <td style="width: 15%;">类型:</td>
                            <td><b id="info-userType"></b></td>
                        </tr>
                    </table>
                    <br>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-pill btn-grad btn-info" data-dismiss="modal">关闭</button>
                </div>
            </form>
        </div>
    </div>
</div>

<!-- edit -->
<div class="modal fade" id="modal-edit" tabindex="-1" role="dialog"
     aria-labelledby="myModalLabel">

        }
        if (document.getElementById("add-jiaoyiPhone").value.trim().length == 0) {
            alert("卖家手机不能为空");
            return false;
        }
        if (document.getElementById("add-jiaoyiBuy").value.trim().length == 0) {
            alert("买家不能为空");
            return false;
        }
        if (document.getElementById("add-jiaoyiBuyphone").value.trim().length == 0) {
            alert("买家手机不能为空");
            return false;
        }
        if (document.getElementById("add-jiaoyiDate").value.trim().length == 0) {
            alert("交易时间不能为空");
            return false;
        }
        if (document.getElementById("add-jiaoyiAddress").value.trim().length == 0) {
            alert("交易地点不能为空");
            return false;
        }
        return true;

     */
    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");

    //分页显示的页数,比如在页面上显示1，2，3，4，5页，start就为1，end就为5，这个也是算过来的
    private int start;
    private int end;

    private String servlet;//查询时要请求的接口
    private String searchColumn;//待模糊查询的列
    private String keyword;//待模糊查询的关键字

    //通过pageNum，pageSize，totalRecord计算得来tatalPage和startIndex，构造方法中将pageNum，pageSize，totalRecord获得
    public PageBean(int pageNum, int totalRecord) {
        this.pageNum = (pageNum = Math.max(pageNum, 1));
        this.pageSize = 10;//默认为10
        this.totalRecord = totalRecord;
        //totalPage 总页数
        if (totalRecord % pageSize == 0) {

                                </button>
                            </th>
                        </tr>
                    </c:forEach>
                    </tbody>
                </table>
            </div>
            <div style="float: right;padding-right: 10px;color: #515151;"><jsp:include page="split.jsp"/></div>
        </div>
    </div>
</div>

<!-- add -->
<div class="modal fade" id="modal-add" tabindex="-1" role="dialog"
     aria-labelledby="myModalLabel">
    <div class="modal-dialog" role="document">
        <div class="modal-content">
            <form action="jiaoyiAdd" onsubmit="return addCheck()">
                <div class="modal-header">
                    <button type="button" class="close" data-dismiss="modal"
                            aria-label="Close">
                        <span aria-hidden="true">&times;</span>
                    </button>
                    <h4 class="modal-title" id="myModalLabel">增加交易</h4>
                </div>

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.*;
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;

@Controller
public class AuthController extends HttpServlet {
    @Autowired
    private UserService userService;

    @RequestMapping("authLogin")
    public void login(HttpServletResponse response, HttpServletRequest request) throws IOException, ServletException {
        String username = Util.decode(request, "username");