基于springboot+Thymeleaf的校园二手交易平台(附源码获取链接)

项目描述 ： 以SpringBoot为项目框架开发的二手交易网站，主要用作个人学习，网站的功能模块有：

买家模块、卖家模块、购物车 模块、订单模块、内容管理模块。通过这一系列模块能基本满足二手商品的线上交易，基本功能也全部实现

技术架构 ： SpringBoot+MyBatis-plus+Thymeleaf+Redis+swagger

技术描述 ：

• 使用SpringBoot作为项目基础框架和使用Thymeleaf模板引擎

• 接入阿里云短信、支付宝沙箱、阿里云存储服务

• 使用Redis进行缓存管理

• 可以使用mybatis-plus进行代码生成

• swagger文档管理

package com.jzh.xx.transaction.controller;

import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.internal.util.AlipaySignature;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.jzh.xx.transaction.config.AlipayConfig;
import com.jzh.xx.transaction.domain.*;
import com.jzh.xx.transaction.service.*;
import com.jzh.xx.transaction.vo.OrderVO;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.util.*;

@Controller
@RequestMapping("checkout")
public class CheckoutController {
    @Resource
    private CategoryService categoryService;

    @Resource
    private CategoryTwoService categoryTwoService;

    @Resource
    private CartService cartService;

    @Resource
    private ExpressService expressService;

    @Resource
    private OrderService orderService;

    @Resource
    private UserService userService;

    /**
     * 订单信息页
     * @param id
     * @param model
     * @param session
     * @return
     */
    @GetMapping("{id}")
    public String toCheckout(@PathVariable Long id, Model model, HttpSession session){
        // 获取用户 ID
        XxUser user = (XxUser) session.getAttribute("user");

        // 查询订单详情
        OrderVO orderVO = orderService.getById(id);

        // 购物车
        List<Cart> cartGoods = new ArrayList<>();
        if (user != null){
            cartGoods = cartService.getByUserId(user.getId());
        }
        Double total = 0.0;
        int goodsCount = cartGoods.size();
        if (cartGoods.size() >0){
            for (int i = 0; i< cartGoods.size(); i++){
                total += cartGoods.get(i).getBuyCount() * cartGoods.get(i).getGoodsPrice();
            }
        }
        // 父分类
        List<Category> categories = categoryService.categoryList();

        // 查询所有子分类
        List<CategoryTwo> categoryTwos = categoryTwoService.getAll();

        //查询所有快递
        List<Express> expresses = expressService.getAll();


        model.addAttribute("user",user);
        model.addAttribute("orderVO",orderVO);
        model.addAttribute("goodsCount",goodsCount);
        model.addAttribute("cartGoods",cartGoods);
        model.addAttribute("total",total);
        model.addAttribute("categories",categories);
        model.addAttribute("categoryTwos",categoryTwos);
        model.addAttribute("expresses",expresses);
        return "checkout";
    }

    @GetMapping("completed")
    public String toCompleted(Model model, HttpSession session){
        // 获取用户 ID
        XxUser user = (XxUser) session.getAttribute("user");

        // 购物车
        List<Cart> cartGoods = new ArrayList<>();
        if (user != null){
            cartGoods = cartService.getByUserId(user.getId());
        }
        Double total = 0.0;
        int goodsCount = cartGoods.size();
        if (cartGoods.size() >0){
            for (int i = 0; i< cartGoods.size(); i++){
                total += cartGoods.get(i).getBuyCount() * cartGoods.get(i).getGoodsPrice();
            }
        }
        // 父分类
        List<Category> categories = categoryService.categoryList();

        // 查询所有子分类
        List<CategoryTwo> categoryTwos = categoryTwoService.getAll();

        model.addAttribute("goodsCount",goodsCount);
        model.addAttribute("cartGoods",cartGoods);
        model.addAttribute("total",total);
        model.addAttribute("categories",categories);
        model.addAttribute("categoryTwos",categoryTwos);

        return "completed";
    }

    @GetMapping("failPay")
    public String toFailPay(Model model, HttpSession session){
        // 获取用户 ID
        XxUser user = (XxUser) session.getAttribute("user");

        // 购物车
        List<Cart> cartGoods = new ArrayList<>();
        if (user != null){
            cartGoods = cartService.getByUserId(user.getId());
        }
        Double total = 0.0;
        int goodsCount = cartGoods.size();
        if (cartGoods.size() >0){
            for (int i = 0; i< cartGoods.size(); i++){
                total += cartGoods.get(i).getBuyCount() * cartGoods.get(i).getGoodsPrice();
            }
        }
        // 父分类
        List<Category> categories = categoryService.categoryList();

        // 查询所有子分类
        List<CategoryTwo> categoryTwos = categoryTwoService.getAll();

        model.addAttribute("goodsCount",goodsCount);
        model.addAttribute("cartGoods",cartGoods);
        model.addAttribute("total",total);
        model.addAttribute("categories",categories);
        model.addAttribute("categoryTwos",categoryTwos);

        return "failtopay";
    }

    @PostMapping("/AliPay")
    public void goPay(Long orderId, HttpServletResponse response) throws IOException {
        //查询出订单信息
        OrderVO order = orderService.getById(orderId);

        //获得初始化的AlipayClient
        AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.app_id, AlipayConfig.merchant_private_key, "json", AlipayConfig.charset, AlipayConfig.alipay_public_key, AlipayConfig.sign_type);
        AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();
        alipayRequest.setReturnUrl(AlipayConfig.return_url);
        //alipayRequest.setNotifyUrl(AlipayConfig.notify_url);

        //商户订单号，商户网站订单系统中唯一订单号，必填
        String out_trade_no = Long.toString(orderId);
        //付款金额，必填
        String total_amount = String.valueOf(order.getTotal());
        //订单名称，必填
        String subject = "闲闲网二手物品交易";
        //商品描述，可空
        String body = "";
        // 该笔订单允许的最晚付款时间，逾期将关闭交易。取值范围：1m～15d。m-分钟，h-小时，d-天，1c-当天（1c-当天的情况下，无论交易何时创建，都在0点关闭）。 该参数数值不接受小数点， 如 1.5h，可转换为 90m。
        String timeout_express = "5m";
        alipayRequest.setBizContent("{\"out_trade_no\":\""+ out_trade_no +"\","
                + "\"total_amount\":\""+ total_amount +"\","
                + "\"subject\":\""+ subject +"\","
                + "\"body\":\""+ body +"\","
                + "\"timeout_express\":\""+ timeout_express +"\","
                + "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}");
        //请求
        String form="";
        try {
            form = alipayClient.pageExecute(alipayRequest).getBody(); //调用SDK生成表单
        } catch (AlipayApiException e) {
            e.printStackTrace();
        }
        response.setContentType("text/html;charset=" + AlipayConfig.charset);
        response.getWriter().write(form);//直接将完整的表单html输出到页面
        response.getWriter().flush();
        response.getWriter().close();
    }

    /**
     * 回调页
     * @param request
     * @param response
     * @return
     * @throws IOException
     * @throws AlipayApiException
     */
    @GetMapping("returnUrl")
    public String returnUrl(HttpServletRequest request, HttpServletResponse response, HttpSession session)
            throws IOException, AlipayApiException {

        // 获取支付宝GET过来反馈信息
        Map<String, String> params = new HashMap<String, String>();
        Map<String, String[]> requestParams = request.getParameterMap();
        for (Iterator<String> iter = requestParams.keySet().iterator(); iter.hasNext();) {
            String name = (String) iter.next();
            String[] values = (String[]) requestParams.get(name);
            String valueStr = "";
            for (int i = 0; i < values.length; i++) {
                valueStr = (i == values.length - 1) ? valueStr + values[i] : valueStr + values[i] + ",";
            }
            // 乱码解决，这段代码在出现乱码时使用
            valueStr = new String(valueStr.getBytes("utf-8"), "utf-8");
            params.put(name, valueStr);
        }
        boolean signVerified = AlipaySignature.rsaCheckV1(params, AlipayConfig.alipay_public_key, AlipayConfig.charset, AlipayConfig.sign_type); // 调用SDK验证签名
        //验证签名通过
        if(signVerified){
            // 商户订单号
            String out_trade_no = new String(request.getParameter("out_trade_no").getBytes("ISO-8859-1"), "UTF-8");

            // 支付宝交易号
            String trade_no = new String(request.getParameter("trade_no").getBytes("ISO-8859-1"), "UTF-8");

            // 付款金额
            String total_amount = new String(request.getParameter("total_amount").getBytes("ISO-8859-1"), "UTF-8");

            //支付成功，更新订单支付状态
            Long orderId = Long.valueOf(out_trade_no);
            ShopOrder order =new ShopOrder();
            order.setId(orderId);
            order.setStatus((byte) 1);
            order.setOverTime(new Date());
            orderService.updateOrder(order);
            //将用户信息放入session
            Long userId = orderService.getUserId(orderId);
            //清除该用户的购物车
            cartService.deleteByUserId(userId);

            XxUser user = userService.getById(userId);
            session.setAttribute("user",user);

            return "redirect:/checkout/completed";//跳转付款成功页面
        }else{
            return "redirect:/checkout/failPay";//跳转付款失败页面
        }

    }

}

 二手交易平台源码链接https://gitee.com/wuyanzua/blog-applet