作者主页：编程千纸鹤

作者简介：Java、前端、Python开发多年，做过高程，项目经理，架构师

主要内容：Java项目开发、Python项目开发、大学数据和AI项目开发、单片机项目设计、面试技术整理、最新技术分享

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文末获得源码

 项目编号：BS-XCX-024

一，环境介绍

语言环境：Java:  jdk1.8 

数据库：Mysql: mysql5.7

应用服务器：Tomcat:  tomcat8.5.31

开发工具：IDEA或eclipse+微信开发者工具

开发技术：Springboot+vue+微信小程序

二，项目简介

本项止基于Springboot+vue+微信小程序实现了一个校园二手物品商城交易系统。系统的后台使用springboot+mybatis开发实现，后台管理页面使用Vue+ElementUI开发实现，用户端基于微信小程序开发实现。前端用户使用微信登录小程序后，可以在线浏览二手商品，并在线购买下单和评论等，同时自己也可以发布相应的二手商品，并管理自己的订单信息和销售信息。管理员登录后台管理系统可以管理人员、商品分类、商品、订单等相关信息。具体见下面展示。

三，系统展示

前端小程序

在商品详情里可以和发布人在线发消息交流，在线评论，在线下单交易

商品分类查询

发布二手商品

在线信息交流

个人中心：可以管理自己发布的商品，查看自己的收藏记录，查看自己的订单，查看己销售的订单，查看评论和消息回复等。

后台管理

分类管理

商品管理

其它略

四，核心代码展示

package com.spboot.tx.controller;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.util.StrUtil;
import com.spboot.tx.mapper.*;
import com.spboot.tx.pojo.*;
import com.spboot.tx.service.*;
import com.spboot.tx.utils.*;
import io.swagger.annotations.*;
import java.io.*;
import java.util.*;
import javax.annotation.Resource;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.web.bind.annotation.*;

@Api(tags = { "管理员控制器" })
@RestController
@RequestMapping("/api/admins")
public class AdminsController {

    @Autowired
    public AdminsService adminsService;

    @Autowired
    public AdminsMapper adminsMapper;

    @Resource
    private HttpServletRequest request;

    @Resource
    private HttpServletResponse response;

    @ApiOperation(value = "获取全部管理员", httpMethod = "GET")
    @RequestMapping("/selectAll")
    public ResponseData<List<Admins>> selectAll() {
        return adminsService.selectAll();
    }

    @ApiOperation(value = "根据条件筛选获取管理员列表，并分页", httpMethod = "POST")
    @RequestMapping("/selectPages")
    public ResponseData selectPages(@RequestBody Map<String, Object> req) {
        return adminsService.selectPages(req);
    }

    @ApiOperation(value = "根据过滤信息获取相关数据", httpMethod = "POST")
    @RequestMapping("/filter")
    public ResponseData<List<Admins>> filter(@RequestBody Map<String, Object> req) {
        return adminsService.filter(req);
    }

    @Autowired
    private AuthenticationManager authenticationManager;

    @ApiOperation(value = "修改密码", httpMethod = "POST")
    @PostMapping("/editPassword")
    public ResponseData<Object> editPassword(
        @RequestParam(required = false) String oldPassword,
        @RequestParam(required = false) String newPwd,
        @RequestParam(required = false) String newPwd2
    ) {
        Authentication authentication = null;
        SessionUser user = Request.user();
        if (!user.getCx().equals("小程序")) {
            if (StrUtil.hasBlank(oldPassword) || StrUtil.hasBlank(newPwd) || StrUtil.hasBlank(newPwd2)) {
                return JsonResult.error("请输入密码");
            }

            if (!newPwd.equals(newPwd2)) {
                return JsonResult.error("确认密码不正确，请重试");
            }

            try {
                //会自动调用loadUserByUsername方法，若查到用户，且用户名密码正确，则验证通过。
                // 关于密码的解密，配置在WebSecurityConfig类中（与注册时的加密策略保持相同）
                String pwd = oldPassword;
                authentication = authenticationManager.authenticate(new UsernamePasswordAuthenticationToken(user.getUsername(), pwd));
            } catch (Exception e) {
                e.printStackTrace();
                //当loadUserByUsername方法找不到用户时，会进入此异常
                //若查到用户，且用户名密码不匹配，会进入此异常
                return JsonResult.error("原密码错误");
            }
            Admins admins = adminsMapper.selectById(user.getId());
            admins.setPwd(newPwd);
            return adminsService.update(admins, new HashMap());
        }
        return JsonResult.error("此用户不支持修改密码");
    }

    @ApiOperation(value = "根据id获取信息", httpMethod = "GET")
    @RequestMapping("/findById")
    @ApiImplicitParam(name = "id", value = "管理员对应的id", dataType = "Integer")
    public ResponseData findById(@RequestParam Integer id) {
        return adminsService.findById(id);
    }

    @ApiOperation(value = "根据id更新数据", httpMethod = "POST")
    @RequestMapping("/update")
    @ApiImplicitParam(name = "data", value = "使用json数据提交", type = "json", dataTypeClass = Admins.class, paramType = "body")
    public ResponseData update(@RequestBody Map data) {
        Admins post = BeanUtil.mapToBean(data, Admins.class, true);
        return adminsService.update(post, data);
    }

    @ApiOperation(value = "插入一行数据，返回插入后的管理员", httpMethod = "POST")
    @RequestMapping("/insert")
    @ApiImplicitParam(name = "data", value = "使用json数据提交", type = "json", dataTypeClass = Admins.class, paramType = "body")
    public ResponseData insert(@RequestBody Map data) {
        Admins post = BeanUtil.mapToBean(data, Admins.class, true);
        return adminsService.insert(post, data);
    }

    @ApiOperation(value = "根据id列表删除数据", httpMethod = "POST")
    @RequestMapping("/delete")
    @ApiImplicitParam(name = "id", value = "管理员对应的id", type = "json", dataTypeClass = List.class)
    public ResponseData delete(@RequestBody List<Integer> id) {
        return adminsService.delete(id);
    }
}

package com.spboot.tx.controller;

import cn.hutool.core.bean.BeanUtil;
import com.spboot.tx.mapper.*;
import com.spboot.tx.pojo.*;
import com.spboot.tx.service.*;
import com.spboot.tx.utils.*;
import io.swagger.annotations.*;
import java.io.*;
import java.util.*;
import javax.annotation.Resource;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

@Api(tags = { "地区控制器" })
@RestController
@RequestMapping("/api/diqu")
public class DiquController {

    @Autowired
    public DiquService diquService;

    @Resource
    private HttpServletRequest request;

    @Resource
    private HttpServletResponse response;

    @ApiOperation(value = "获取全部地区", httpMethod = "GET")
    @RequestMapping("/selectAll")
    public ResponseData<List<Diqu>> selectAll() {
        return diquService.selectAll();
    }

    @ApiOperation(value = "根据条件筛选获取地区列表，并分页", httpMethod = "POST")
    @RequestMapping("/selectPages")
    public ResponseData selectPages(@RequestBody Map<String, Object> req) {
        return diquService.selectPages(req);
    }

    @ApiOperation(value = "根据过滤信息获取相关数据", httpMethod = "POST")
    @RequestMapping("/filter")
    public ResponseData<List<Diqu>> filter(@RequestBody Map<String, Object> req) {
        return diquService.filter(req);
    }

    @ApiOperation(value = "根据id获取信息", httpMethod = "GET")
    @RequestMapping("/findById")
    @ApiImplicitParam(name = "id", value = "地区对应的id", dataType = "Integer")
    public ResponseData findById(@RequestParam Integer id) {
        return diquService.findById(id);
    }

    @ApiOperation(value = "根据id更新数据", httpMethod = "POST")
    @RequestMapping("/update")
    @ApiImplicitParam(name = "data", value = "使用json数据提交", type = "json", dataTypeClass = Diqu.class, paramType = "body")
    public ResponseData update(@RequestBody Map data) {
        Diqu post = BeanUtil.mapToBean(data, Diqu.class, true);
        return diquService.update(post, data);
    }

    @ApiOperation(value = "插入一行数据，返回插入后的地区", httpMethod = "POST")
    @RequestMapping("/insert")
    @ApiImplicitParam(name = "data", value = "使用json数据提交", type = "json", dataTypeClass = Diqu.class, paramType = "body")
    public ResponseData insert(@RequestBody Map data) {
        Diqu post = BeanUtil.mapToBean(data, Diqu.class, true);
        return diquService.insert(post, data);
    }

    @ApiOperation(value = "根据id列表删除数据", httpMethod = "POST")
    @RequestMapping("/delete")
    @ApiImplicitParam(name = "id", value = "地区对应的id", type = "json", dataTypeClass = List.class)
    public ResponseData delete(@RequestBody List<Integer> id) {
        return diquService.delete(id);
    }
}

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