[免费]微信小程序(校园)二手交易系统(uni-app+SpringBoot后端+Vue管理端)【论文+源码+SQL脚本】

大家好，我是java1234_小锋老师，看到一个不错的微信小程序(校园)二手交易系统(uni-app+SpringBoot后端+Vue管理端)，分享下哈。

项目视频演示

【免费】微信小程序(校园)二手交易系统(uni-app+SpringBoot后端+Vue管理端) Java毕业设计_哔哩哔哩_bilibili

项目介绍

当今社会已经步入了科学技术进步和经济社会快速发展的新时期，国际信息和学术交流也不断加强，计算机技术对经济社会发展和人民生活改善的影响也日益突出，人类的生存和思考方式也产生了变化。传统高校二手商品交易采取了人工的管理方法，但这种管理方法存在着许多弊端，比如效率低下、安全性低以及信息传输的不准确等，同时由于高校二手商品交易中会形成众多的个人文档和信息系统数据，通过人工方法对二手物品、二手交易、校园论坛等进行集中管理会形成检索、更改和维护等较为麻烦的管理问题，同时由于广大用户对网络技术的需求也日益高涨，于是信息技术也需要继续开展全新的改革以满足时代的需求。根据此问题，研发一套高校二手商品交易平台，既能够大大提高信息的检索、变更与维护的工作效率，也能够方便微信小程序的管理运用，从而减少信息管理成本，提高效率。

该高校二手商品交易平台采用Uni-weixin、SpringBoot架构技术，前端以小程序页面呈现给用户，结合后台java语言使页面更加完善，后台使用MySQL数据库进行数据存储。该微信小程序主要设计并完成了管理过程中的用户注册登录、个人信息修改、用户、物品分类、二手物品、二手交易、校园论坛等功能。该微信小程序操作简便，界面设计简洁，不但可以基本满足本行业的日常管理工作，同时又可以有效减少人员成本和时间成本，为高校二手商品交易管理工作提供了方便。

系统展示

部分代码


package com.controller;import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
import java.util.Map;import javax.servlet.http.HttpServletRequest;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;import com.annotation.IgnoreAuth;
import com.baomidou.mybatisplus.mapper.EntityWrapper;
import com.entity.TokenEntity;
import com.entity.UsersEntity;
import com.service.TokenService;
import com.service.UsersService;
import com.utils.CommonUtil;
import com.utils.MPUtil;
import com.utils.PageUtils;
import com.utils.R;
import com.utils.ValidatorUtils;/*** 登录相关*/
@RequestMapping("users")
@RestController
public class UsersController{@Autowiredprivate UsersService userService;@Autowiredprivate TokenService tokenService;/*** 登录*/@IgnoreAuth@RequestMapping(value = "/login")public R login(String username, String password, String captcha, HttpServletRequest request) {UsersEntity user = userService.selectOne(new EntityWrapper<UsersEntity>().eq("username", username));if(user==null || !user.getPassword().equals(password)) {return R.error("账号或密码不正确");}String token = tokenService.generateToken(user.getId(),username, "users", user.getRole());return R.ok().put("token", token);}/*** 注册*/@IgnoreAuth@PostMapping(value = "/register")public R register(@RequestBody UsersEntity user){
//    	ValidatorUtils.validateEntity(user);if(userService.selectOne(new EntityWrapper<UsersEntity>().eq("username", user.getUsername())) !=null) {return R.error("用户已存在");}userService.insert(user);return R.ok();}/*** 退出*/@GetMapping(value = "logout")public R logout(HttpServletRequest request) {request.getSession().invalidate();return R.ok("退出成功");}/*** 密码重置*/@IgnoreAuth@RequestMapping(value = "/resetPass")public R resetPass(String username, HttpServletRequest request){UsersEntity user = userService.selectOne(new EntityWrapper<UsersEntity>().eq("username", username));if(user==null) {return R.error("账号不存在");}user.setPassword("123456");userService.update(user,null);return R.ok("密码已重置为：123456");}/*** 列表*/@RequestMapping("/page")public R page(@RequestParam Map<String, Object> params,UsersEntity user){EntityWrapper<UsersEntity> ew = new EntityWrapper<UsersEntity>();PageUtils page = userService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.allLike(ew, user), params), params));return R.ok().put("data", page);}/*** 列表*/@RequestMapping("/list")public R list( UsersEntity user){EntityWrapper<UsersEntity> ew = new EntityWrapper<UsersEntity>();ew.allEq(MPUtil.allEQMapPre( user, "user")); return R.ok().put("data", userService.selectListView(ew));}/*** 信息*/@RequestMapping("/info/{id}")public R info(@PathVariable("id") String id){UsersEntity user = userService.selectById(id);return R.ok().put("data", user);}/*** 获取用户的session用户信息*/@RequestMapping("/session")public R getCurrUser(HttpServletRequest request){Long id = (Long)request.getSession().getAttribute("userId");UsersEntity user = userService.selectById(id);return R.ok().put("data", user);}/*** 保存*/@PostMapping("/save")public R save(@RequestBody UsersEntity user){
//    	ValidatorUtils.validateEntity(user);if(userService.selectOne(new EntityWrapper<UsersEntity>().eq("username", user.getUsername())) !=null) {return R.error("用户已存在");}userService.insert(user);return R.ok();}/*** 修改*/@RequestMapping("/update")public R update(@RequestBody UsersEntity user){
//        ValidatorUtils.validateEntity(user);UsersEntity u = userService.selectOne(new EntityWrapper<UsersEntity>().eq("username", user.getUsername()));if(u!=null && u.getId()!=user.getId() && u.getUsername().equals(user.getUsername())) {return R.error("用户名已存在。");}userService.updateById(user);//全部更新return R.ok();}/*** 删除*/@RequestMapping("/delete")public R delete(@RequestBody Long[] ids){userService.deleteBatchIds(Arrays.asList(ids));return R.ok();}
}

<template><div><div class="container" :style='{"minHeight":"100vh","alignItems":"center","background":"url(http://codegen.caihongy.cn/20220720/699aa3b06dfe4880b002da88c76067c2.png)","display":"flex","width":"100%","backgroundSize":"cover","backgroundPosition":"center center","backgroundRepeat":"no-repeat","justifyContent":"center"}'><el-form :style='{"padding":"0px 20px","boxShadow":"0px 4px 10px 0px rgba(0, 0, 0, 0.1020)","margin":"0 0 0 550px","borderRadius":"0 10px 10px 0","background":"#fff","flexDirection":"column","display":"flex","width":"400px","position":"relative","justifyContent":"center","height":"550px"}'><div v-if="true" :style='{"padding":"20px 50px","margin":"0 0 10px 0","color":"#fff","alignItems":"center","display":"flex","justifyContent":"center","top":"0","borderRadius":"10px 0 0 10px","left":"-550px","background":"rgba(190, 132, 48, .6)","width":"550px","lineHeight":"44px","fontSize":"30px","position":"absolute","height":"550px"}' class="title-container">高校二手商品交易平台的设计与实现登录</div><div v-if="loginType==1" class="list-item" :style='{"width":"80%","margin":"10px auto 5px","alignItems":"center","flexWrap":"wrap","display":"flex"}'><div v-if="false" class="lable" :style='{"width":"64px","lineHeight":"44px","fontSize":"14px","color":"rgba(64, 158, 255, 1)"}'>用户名：</div><input :style='{"border":"0px solid rgba(64, 158, 255, 1)","padding":"0 10px","boxShadow":"0px 4px 10px 0px rgba(0,0,0,0.3020)","color":"#000","outlineOffset":"4px","width":"100%","fontSize":"14px","height":"44px"}' placeholder="请输入用户名" name="username" type="text" v-model="rulesForm.username"></div><div v-if="loginType==1" class="list-item" :style='{"width":"80%","margin":"10px auto 5px","alignItems":"center","flexWrap":"wrap","display":"flex"}'><div v-if="false" class="lable" :style='{"width":"64px","lineHeight":"44px","fontSize":"14px","color":"rgba(64, 158, 255, 1)"}'>密码：</div><input :style='{"border":"0px solid rgba(64, 158, 255, 1)","padding":"0 10px","boxShadow":"0px 4px 10px 0px rgba(0,0,0,0.3020)","color":"#000","outlineOffset":"4px","width":"100%","fontSize":"14px","height":"44px"}' placeholder="请输入密码" name="password" type="password" v-model="rulesForm.password"></div><div :style='{"width":"80%","margin":"20px auto"}' v-if="roles.length>1" prop="loginInRole" class="list-type"><el-radio v-for="item in roles" v-bind:key="item.roleName" v-model="rulesForm.role" :label="item.roleName">{{item.roleName}}</el-radio></div><div :style='{"width":"80%","margin":"20px auto","alignItems":"center","flexWrap":"wrap","justifyContent":"center","display":"flex"}'><el-button v-if="loginType==1" :style='{"border":"0","cursor":"pointer","padding":"0 24px","margin":"0 50px","outline":"none","color":"#fff","borderRadius":"4px","background":"rgba(253, 190, 96, 1)","width":"150px","fontSize":"16px","height":"44px"}' type="primary" @click="login()" class="loginInBt">登录</el-button></div></el-form></div></div>
</template>
<script>import menu from "@/utils/menu";
export default {data() {return {baseUrl:this.$base.url,loginType: 1,rulesForm: {username: "",password: "",role: "",code: '',},menus: [],roles: [],tableName: "",codes: [{num: 1,color: '#000',rotate: '10deg',size: '16px'},{num: 2,color: '#000',rotate: '10deg',size: '16px'},{num: 3,color: '#000',rotate: '10deg',size: '16px'},{num: 4,color: '#000',rotate: '10deg',size: '16px'}],};},mounted() {let menus = menu.list();this.menus = menus;for (let i = 0; i < this.menus.length; i++) {if (this.menus[i].hasBackLogin=='是') {this.roles.push(this.menus[i])}}},created() {this.getRandCode()},destroyed() {},components: {},methods: {//注册register(tableName){this.$storage.set("loginTable", tableName);this.$storage.set("pageFlag", "register");this.$router.push({path:'/register'})},// 登陆login() {if (!this.rulesForm.username) {this.$message.error("请输入用户名");return;}if (!this.rulesForm.password) {this.$message.error("请输入密码");return;}if(this.roles.length>1) {if (!this.rulesForm.role) {this.$message.error("请选择角色");return;}let menus = this.menus;for (let i = 0; i < menus.length; i++) {if (menus[i].roleName == this.rulesForm.role) {this.tableName = menus[i].tableName;}}} else {this.tableName = this.roles[0].tableName;this.rulesForm.role = this.roles[0].roleName;}this.$http({url: `${this.tableName}/login?username=${this.rulesForm.username}&password=${this.rulesForm.password}`,method: "post"}).then(({ data }) => {if (data && data.code === 0) {this.$storage.set("Token", data.token);this.$storage.set("role", this.rulesForm.role);this.$storage.set("sessionTable", this.tableName);this.$storage.set("adminName", this.rulesForm.username);this.$router.replace({ path: "/index/" });} else {this.$message.error(data.msg);}});},getRandCode(len = 4){this.randomString(len)},randomString(len = 4) {let chars = ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k","l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v","w", "x", "y", "z", "A", "B", "C", "D", "E", "F", "G","H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R","S", "T", "U", "V", "W", "X", "Y", "Z", "0", "1", "2","3", "4", "5", "6", "7", "8", "9"]let colors = ["0", "1", "2","3", "4", "5", "6", "7", "8", "9", "a", "b", "c", "d", "e", "f"]let sizes = ['14', '15', '16', '17', '18']let output = [];for (let i = 0; i < len; i++) {// 随机验证码let key = Math.floor(Math.random()*chars.length)this.codes[i].num = chars[key]// 随机验证码颜色let code = '#'for (let j = 0; j < 6; j++) {let key = Math.floor(Math.random()*colors.length)code += colors[key]}this.codes[i].color = code// 随机验证码方向let rotate = Math.floor(Math.random()*60)let plus = Math.floor(Math.random()*2)if(plus == 1) rotate = '-'+rotatethis.codes[i].rotate = 'rotate('+rotate+'deg)'// 随机验证码字体大小let size = Math.floor(Math.random()*sizes.length)this.codes[i].size = sizes[size]+'px'}},}
};
</script><style lang="scss" scoped>
.container {min-height: 100vh;position: relative;background-repeat: no-repeat;background-position: center center;background-size: cover;background: url(http://codegen.caihongy.cn/20220720/699aa3b06dfe4880b002da88c76067c2.png);.list-item /deep/ .el-input .el-input__inner {border: 0px solid rgba(64, 158, 255, 1);padding: 0 10px;box-shadow: 0px 4px 10px 0px rgba(0,0,0,0.3020);color: #000;width: 100%;font-size: 14px;outline-offset: 4px;height: 44px;}.list-code /deep/ .el-input .el-input__inner {border: 0;padding: 0 10px;box-shadow: 0px 4px 10px 0px rgba(0,0,0,0.3020);outline: none;color: #000;width: 100%;font-size: 14px;height: 44px;}.list-type /deep/ .el-radio__input .el-radio__inner {background: rgba(53, 53, 53, 0);border-color: #666666;}.list-type /deep/ .el-radio__input.is-checked .el-radio__inner {background: rgba(165, 155, 149, 1);border-color: rgba(165, 155, 149, 1);}.list-type /deep/ .el-radio__label {color: #666666;font-size: 14px;}.list-type /deep/ .el-radio__input.is-checked+.el-radio__label {color: rgba(165, 155, 149, 1);font-size: 14px;}
}
</style>