微信支付简略

最新推荐文章于 2025-05-26 15:18:12 发布

weixin_48570662

最新推荐文章于 2025-05-26 15:18:12 发布

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文章标签：微信 postman eureka java

本文链接：https://blog.youkuaiyun.com/weixin_48570662/article/details/125330953

版权

1.引入依赖

  <dependency>
            <groupId>com.github.wxpay</groupId>
            <artifactId>wxpay-sdk</artifactId>
            <version>0.0.3</version>
    </dependency>

2.配置类

此处用到是前锋教育的商户

public class MyPayConfig  implements WXPayConfig {
    @Override
    public String getAppID() {
        //应用ID
        return "wx632c8f211f8122c6";
    }

    @Override
    public String getMchID() {
        //直连商户号
        return "1497984412";
    }

    @Override
    public String getKey() {
        //- 商户Key：sbNCm1JnevqI36LrEaxFwcaT0hkGxFnC
        return "sbNCm1JnevqI36LrEaxFwcaT0hkGxFnC";
    }

    @Override
    public InputStream getCertStream() {
        return null;
    }

    @Override
    public int getHttpConnectTimeoutMs() {
        return 0;
    }

    @Override
    public int getHttpReadTimeoutMs() {
        return 0;
    }
}

3.使用Native下单

@RestController
@RequestMapping("orders")
@CrossOrigin
@Api(value = "提供订单详情接口", tags = "订单管理")
public class OrdersController {
    @Autowired
    private OrdersService ordersService;

    @ApiOperation("添加订单")
    @PostMapping("/add")
    public ResultVo addOrders(String cids, @RequestBody Orders orders) {
        ResultVo ok = ResultVo.ok();
        try {
            Map<String, String> orderInfo = ordersService.addOrders(orders, cids);
            WXPay wxPay = new WXPay(new MyPayConfig());
            HashMap<String, String> map = new HashMap<>();
            map.put("body", orderInfo.get("productNames"));             //  商品描述
            map.put("trade_type", "CNY");              // 支付币种
            map.put("out_trade_no", orderInfo.get("orderId")); //使用当前用户订单的编号作为当前支付交易的交易号
            map.put("total_fee","1");               //支付金额   orders.getActualAmount()*100+""
            map.put("trade_type", "NATIVE");         //交易类型
            map.put("notify_url","https://3ad6-120-216-179-100.jp.ngrok.io/pay/callback");   //设置支付完成时返回的地址
            Map<String, String> res = wxPay.unifiedOrder(map);
            ok.data("payUrl",res.get("code_url")).data("productNames",orderInfo.get("productNames")).data("orderId",orderInfo.get("orderId"));
        } catch (SQLException e) {
            return ResultVo.error().message("提交订单失败");
        } catch (Exception e) {
            return ResultVo.error().message("库存不足或提交订单失败");
        }
        return ok;
    }


    @ApiOperation("查询商品支付状态")
    @GetMapping("/orderStatus/{oid}")
    public ResultVo getOrderStatus(@PathVariable("oid") String orderId){
        return ordersService.getOrderById(orderId);
    }
}

4.微信支付回调接口

1.使用内网穿透ngrok进行回调

@RestController
@RequestMapping("pay")
@CrossOrigin
public class PayController {
    @Autowired
    private OrdersService ordersService;
    @ApiOperation("微信支付成功回调接口")
    @PostMapping("/callback")
    public String success(HttpServletRequest request) throws Exception {
        ServletInputStream is = request.getInputStream();
        byte[] bytes = new byte[1024];
        int len = -1;
        StringBuilder stringBuilder = new StringBuilder();
        while ((len = is.read(bytes)) != -1){
            stringBuilder.append(new String(bytes,0,len));
        }

        String s = stringBuilder.toString();
        //使用帮助类 将xml接口的字符转换成map
//        不是json格式不能用json转
        Map<String, String> map = WXPayUtil.xmlToMap(s);
        if(map != null && "success".equalsIgnoreCase(map.get("result_code"))){
            // 支付成功
            // 修改订单状态为“代发货/已支付/
            String orderId = map.get("out_trade_no");
            int i = ordersService.updateOrderStatus(orderId,"2");
            WebSocketService.sendMessage(orderId,"1");
            if (i > 0){
                //响应微信支付平台  否则微信一直响应
                HashMap<String, String> resp = new HashMap<>();
                resp.put("return_code","success");
                resp.put("return_msg","OK");
                resp.put("appid",map.get("appid"));
                return WXPayUtil.mapToXml(resp);
            }
        }
        return null;
    }
}

5.前端详情

1.订单详情

doSubmit: function() {
						//将订单信息提交到：添加订单接口
						//1.准备订单数据
						var address = this.addrs[this.addrIndex].province + " " + this.addrs[this.addrIndex].city +
							" " +
							+this.addrs[this.addrIndex].area + " " + this.addrs[this.addrIndex].addr;
						var orders = {
							"actualAmount": this.totalPrice,
							"orderRemark": this.orderRemark,
							"payType": this.payType,
							"receiverAddress": address,
							"receiverMobile": this.addrs[this.addrIndex].receiverMobile,
							"receiverName": this.addrs[this.addrIndex].receiverName,
							"totalAmount": this.totalPrice,
							"userId": getCookieValue("userId")
						};
						//2.提交订单
						var url3 = baseUrl + "orders/add";
						axios({
							url: url3,
							method: "post",
							headers: {
								token: getCookieValue("token")
							},
							params: {
								cids: this.cartIds
							},
							data: orders
						}).then((res) => {
							if (res.data.code == 200) {
								//跳转到支付页面显示支付二维码
								var orderInfo = res.data.data; // {orderId:"123123",productNames:"aseraer",payUrl:"weixin://...."}
								orderInfo.totalPrice = this.totalPrice; // {orderId:"123123",productNames:"aseraer",payUrl:"weixin://....",totalPrice:18.8}

								localStorage.setItem("orderInfo", JSON.stringify(orderInfo));
								window.location.href = "order-pay.html";
							} else if (res.data.code == 2001 || res.data.code == 2002) {
								window.location.href = "login.html";
							} else {
								alert(res.data.msg);
							}
						}).catch((err)=>{
							console.log(err)
						});
					}

2.支付详情

1.使用qrcode.makeCode(this.orderInfo.payUrl);生成二维码

<script type="text/javascript">
			var baseUrl = "http://localhost:8080/"
			var webSocketBaseUrl = "ws://localhost:8080/"
			var vm = new Vue({
				el: "#container",
				data: {
					orderInfo: {}
				},
				created() {
					var jsonstr = localStorage.getItem("orderInfo");
					if (jsonstr != null) {
						localStorage.removeItem("orderInfo");
					}
					var orderInfo = eval("(" + jsonstr + ")")
					this.orderInfo = eval("(" + jsonstr + ")");
				},
				mounted() {
					var qrcode = new QRCode($("#payQrcodeDiv")[0], {
						width: 200,
						height: 200
					});
					qrcode.makeCode(this.orderInfo.payUrl);
					// 前端发送websocket连接请求
					var websocket = null;
					var webSocketUrl = webSocketBaseUrl + "webSocket/" + this.orderInfo.orderId;
					websocket = new WebSocket(webSocketUrl);
					// 只要后端通过websocket向此连接发送消息就会触发onmessage事件
					websocket.onmessage = function(event) {
						console.log(event)
						var msg = event.data;
						if (msg == "1") {
							$("#div1").html("<label style='font-size:20px; color:green'>订单支付完成!</label>")
						}

					}
				}
				// var oid = this.orderInfo.orderId;
				// var i = setInterval(function(){
				// 	console.log("=========")
				// 	var url = baseUrl + "orders/orderStatus/" + oid
				// 	axios({
				// 		url:url,
				// 		method:"get",
				// 		headers:{
				// 			token:getCookieValue("token")
				// 		}
				// 	}).then((res) => {
				// 		if (res.data.data.orderStatus == "1") {
				// 			// 订单未支付
				// 		} else if (res.data.data.orderStatus == "2") {
				// 			$("#div1").html("<label style='font-size:20px; color:green'>订单支付完成!</label>")
				// 			clearInterval(i);
				// 		}
				// 	})
				// },1000);
			})
		</script>