SaaS微信小程序电商系统一键生成小程序源码

package com.weiit.web.api.controller; import com.github.binarywang.wxpay.util.SignUtils; import com.github.pagehelper.PageHelper; import com.github.pagehelper.PageInfo; import com.weiit.core.entity.E; import com.weiit.core.entity.FormMap; import com.weiit.resource.common.utils.RedisUtil; import com.weiit.resource.common.utils.WeiitUtil; import com.weiit.web.api.service.*; import com.weiit.web.base.FrontController; import com.weiit.web.common.ApiResponseCode; import com.weiit.web.common.Constants; import com.weiit.web.common.RedisKey; import com.weiit.web.util.DateUtil; import com.weiit.web.weixinopen.util.XMLUtil; import org.apache.commons.lang.StringUtils; import org.apache.commons.lang.math.RandomUtils; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.*; import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.ParserConfigurationException; import java.io.IOException; import java.math.BigDecimal; import java.text.DecimalFormat; import java.util.*; /** * 订单接口 * * @author tangjian * @version 1.0 * @date：2018年5月7日 上午2:01:43 * @company http://www.wei-it.com */ @Controller @RequestMapping(value = "/api/order") public class OrderController extends FrontController { @Resource private OrderService orderService; @Resource UserService userService; @Resource PlatformService platformService; @Resource ProductService productService; @Resource RedisUtil redisUtil; @Resource MessageService messageService; @Resource IntegralService integralService; /** * 订单确认接口 * * @return * @throws Exception * 参数有cart_ids,address_id,payment_type,remark,express_type,express_money, coupon_id(用户优惠券表的id) 优惠券ID ,pay_price */ @ResponseBody @RequestMapping(value = "/addOrder", method = RequestMethod.POST) public String addOrder(@RequestHeader("token") String token) throws Exception { logger.info("【商品】提交订单,orderController-addOrder"); FormMap formMap = getFormMap(); if (formMap.get("user_id") != null) { //核对订单信息,重新计算总额 double sum = 0; double payPrice = 0; List<E> cartList = orderService.selectUserCartList(formMap); if (cartList == null && cartList.size()==0) { return toJsonAPI("", "创建订单失败，购物车为空", "1006"); } for (E cart : cartList) { sum = sum + cart.getDouble("smarket_price") * cart.getInt("count"); payPrice = payPrice + cart.getDouble("sale_price") * cart.getInt("count"); } formMap.put("order_num", Constants.ORDER_SHOP + System.currentTimeMillis() + StringUtils.leftPad(formMap.getStr("user_id"), 8, RandomUtils.nextInt(1000000) + "")); formMap.put("total_price", sum); //计算优惠金额 double coupon_price =0.0; //表示有优惠券抵扣 小程序传undifined if(!StringUtils.isEmpty(formMap.getStr("coupon_id")) && !formMap.getStr("coupon_id").equals("undefined")){ E coupon=orderService.selectUserCouponById(formMap); if (coupon==null){ return toJsonAPI("", "创建订单失败，优惠券不在使用时间", "1005"); }else if(coupon.getInt("state")==-1){ return toJsonAPI("", "创建订单失败，优惠券已过期", "1005"); }else if(coupon.getInt("state")==1){ return toJsonAPI("", "创建订单失败，优惠券已使用", "1005"); } //都是可用优惠券 不用判断 无条件或是满减 //通用商品 若有售后问题打包退回 if (coupon.getInt("product_range_type")==1){ //指定金额 if(coupon.getInt("type")==1){ coupon_price=coupon.getDouble("coupon_price"); for (E cart : cartList) { //销售金额 -优惠金额*（销售金额/支付金额）= 商品的实际支付金额（售后的退款金额） double salePrice = cart.getDouble("sale_price") * cart.getInt("count"); cart.set("coupon_pay",salePrice-calcPayPrice(salePrice,payPrice,coupon_price)); cart.set("pay_price",calcPayPrice(salePrice,payPrice,coupon_price)); } } //打折 else if(coupon.getInt("type")==2) { coupon_price= getDoubleValue(new BigDecimal(payPrice).multiply(new BigDecimal(10).subtract(new BigDecimal(coupon.getStr("coupon_discount"))).divide(new BigDecimal(10)))); for (E cart : cartList) { //销售金额 -优惠金额*（销售金额/支付金额）= 商品的实际支付金额（售后的退款金额） double salePrice = cart.getDouble("sale_price") * cart.getInt("count"); cart.set("coupon_pay",getDoubleValue(new BigDecimal(salePrice).multiply(new BigDecimal(10-coupon.getInt("coupon_discount"))).divide(new BigDecimal(10)))); cart.set("pay_price",getDoubleValue(new BigDecimal(salePrice).multiply(new BigDecimal(coupon.getInt("coupon_discount"))).divide(new BigDecimal(10)))); } } }//指定商品 else if (coupon.getInt("product_range_type")==2){ String [] product_ids = coupon.getStr("product_ids").split(","); //指定金额 boolean flag = false; if(coupon.getInt("type")==1){ coupon_price=coupon.getDouble("coupon_price"); for(String productId:product_ids){ for (E cart : cartList) { if (cart.getStr("product_id").equals(productId)){ // cart.set("coupon_pay",coupon_price); //未测精度缺失 cart.set("pay_price",cart.getDouble("sale_price") * cart.getInt("count")-coupon_price); flag=true; break; } } if (flag){ break; } } }else if(coupon.getInt("type")==2) {//打折 double temp_price =0.0; for(String productId:product_ids){ for (E cart : cartList) { if (cart.getStr("product_id").equals(productId)){ temp_price+=cart.getDouble("sale_price") * cart.getInt("count"); //该件商品的支付金额 方便售后退货 cart.set("coupon_pay",getDoubleValue(new BigDecimal(cart.getDouble("sale_price") * cart.getInt("count")).multiply(new BigDecimal(10-coupon.getInt("coupon_discount")).divide(new BigDecimal(10))))); cart.set("pay_price",getDoubleValue(new BigDecimal(cart.getDouble("sale_price") * cart.getInt("count")).multiply(new BigDecimal(coupon.getInt("coupon_discount")).divide(new BigDecimal(10))))); } } } coup