/**
* @Description: 微信扫码支付页面
*/
// @GetMapping(value="/getWXPayQRCode")
@PostMapping(value="/getWXPayQRCode")
public JSONResult getWXPayQRCode(String merchantOrderId, String merchantUserId) throws Exception{
// System.out.println(wxPayResource.toString());
// 根据订单ID和用户ID查询订单详情
Orders waitPayOrder = paymentOrderService.queryOrderByStatus(merchantUserId, merchantOrderId, PaymentStatus.WAIT_PAY.type);
// 商品描述
String body = "天天吃货-付款用户[" + merchantUserId + "]";
// 商户订单号
String out_trade_no = merchantOrderId;
// 从redis中去获得这笔订单的微信支付二维码，如果订单状态没有支付没有就放入，这样的做法防止用户频繁刷新而调用微信接口
if (waitPayOrder != null) {
String qrCodeUrl = redis.get(wxPayResource.getQrcodeKey() + ":" + merchantOrderId);
if (StringUtils.isEmpty(qrCodeUrl)) {
// 订单总金额，单位为分
String total_fee = String.valueOf(waitPayOrder.getAmount());
// String total_fee = "1"; // 测试用 1分钱
// 统一下单
PreOrderResult preOrderResult = wxOrderService.placeOrder(body, out_trade_no, total_fee);
qrCodeUrl = preOrderResult.getCode_url();
}
PaymentInfoVO paymentInfoVO = new PaymentInfoVO();
paymentInfoVO.setAmount(waitPayOrder.getAmount());
paymentInfoVO.setMerchantOrderId(merchantOrderId);
paymentInfoVO.setMerchantUserId(merchantUserId);
paymentInfoVO.setQrCodeUrl(qrCodeUrl);
redis.set(wxPayResource.getQrcodeKey() + ":" + merchantOrderId, qrCodeUrl, wxPayResource.getQrcodeExpire());
return JSONResult.ok(paymentInfoVO);
} else {
return JSONResult.errorMsg("该订单不存在，或已经支付");
}
}
@Transactional(propagation=Propagation.SUPPORTS)
@Override
public Orders queryOrderByStatus(String merchantUserId, String merchantOrderId, Integer orderStatus) {
Orders queryOrder = new Orders();
queryOrder.setMerchantOrderId(merchantOrderId);
queryOrder.setMerchantUserId(merchantUserId);
queryOrder.setPayStatus(orderStatus);
Orders waitPayOrder = ordersMapper.selectOne(queryOrder);
return waitPayOrder;
}
/**
* @Description: 支付中心的支付状态 10：未支付 20：已支付 30：支付失败 40：已退款
*/
public enum PaymentStatus {
WAIT_PAY(10, "未支付"),
PAID(20, "已支付"),
PAY_FAILED(30, "支付失败"),
SUCCESS(40, "已退款");
public final Integer type;
public final String value;
PaymentStatus(Integer type, String value){
this.type = type;
this.value = value;
}
}
wxpay.qrcodeExpire=7000
@Override
public PreOrderResult placeOrder(String body, String out_trade_no, String total_fee) throws Exception {
// 生成预付单对象
PreOrder o = new PreOrder();
// 生成随机字符串
String nonce_str = UUID.randomUUID().toString().trim().replaceAll("-", "");
o.setAppid(wxPayResource.getAppId());
o.setBody(body);
o.setMch_id(wxPayResource.getMerchantId());
o.setNotify_url(wxPayResource.getNotifyUrl());
o.setOut_trade_no(out_trade_no);
// 判断有没有输入订单总金额，没有输入默认1分钱
if (total_fee != null && !total_fee.equals("")) {
o.setTotal_fee(Integer.parseInt(total_fee));
} else {
o.setTotal_fee(1);
}
o.setNonce_str(nonce_str);
o.setTrade_type(wxPayResource.getTradeType());
o.setSpbill_create_ip(wxPayResource.getSpbillCreateIp());
SortedMap<Object, Object> p = new TreeMap<Object, Object>();
p.put("appid", wxPayResource.getAppId());
p.put("mch_id", wxPayResource.getMerchantId());
p.put("body", body);
p.put("nonce_str", nonce_str);
p.put("out_trade_no", out_trade_no);
p.put("total_fee", total_fee);
p.put("spbill_create_ip", wxPayResource.getSpbillCreateIp());
p.put("notify_url", wxPayResource.getNotifyUrl());
p.put("trade_type", wxPayResource.getTradeType());
// 获得签名
String sign = Sign.createSign("utf-8", p, wxPayResource.getSecrectKey());
o.setSign(sign);
// Object转换为XML
String xml = XmlUtil.object2Xml(o, PreOrder.class);
// 统一下单地址
String url = wxPayResource.getPlaceOrderUrl();
// 调用微信统一下单地址
String returnXml = HttpUtil.sendPost(url, xml);
// XML转换为Object
PreOrderResult preOrderResult = (PreOrderResult) XmlUtil.xml2Object(returnXml, PreOrderResult.class);
return preOrderResult;
}
@Component
@ConfigurationProperties(prefix="wxpay")
@PropertySource("classpath:wxpay.properties")
public class WXPayResource {
private String qrcodeKey;
private long qrcodeExpire;
private String appId;
private String merchantId;
private String secrectKey;
private String spbillCreateIp;
private String notifyUrl;
private String tradeType;
private String placeOrderUrl;
public String getQrcodeKey() {
return qrcodeKey;
}
public void setQrcodeKey(String qrcodeKey) {
this.qrcodeKey = qrcodeKey;
}
public long getQrcodeExpire() {
return qrcodeExpire;
}
public void setQrcodeExpire(long qrcodeExpire) {
this.qrcodeExpire = qrcodeExpire;
}
public String getAppId() {
return appId;
}
public void setAppId(String appId) {
this.appId = appId;
}
public String getMerchantId() {
return merchantId;
}
public void setMerchantId(String merchantId) {
this.merchantId = merchantId;
}
public String getSecrectKey() {
return secrectKey;
}
public void setSecrectKey(String secrectKey) {
this.secrectKey = secrectKey;
}
public String getSpbillCreateIp() {
return spbillCreateIp;
}
public void setSpbillCreateIp(String spbillCreateIp) {
this.spbillCreateIp = spbillCreateIp;
}
public String getNotifyUrl() {
return notifyUrl;
}
public void setNotifyUrl(String notifyUrl) {
this.notifyUrl = notifyUrl;
}
public String getTradeType() {
return tradeType;
}
public void setTradeType(String tradeType) {
this.tradeType = tradeType;
}
public String getPlaceOrderUrl() {
return placeOrderUrl;
}
public void setPlaceOrderUrl(String placeOrderUrl) {
this.placeOrderUrl = placeOrderUrl;
}
}
wxpay.appId=wx10516asde1h8ki
wxpay.tradeType=NATIVE
wxpay.spbillCreateIp=127.0.0.1
wxpay.secrectKey=4fkbcKhMcSxSXYZQc369nP1SI
wxpay.placeOrderUrl=https://api.mch.weixin.qq.com/pay/unifiedorder
/**
* @Description: 微信支付 - 统一下单返回结果的封装entity
*/
public class PreOrderResult {
private String return_code; // 返回状态码
private String return_msg; // 返回信息
private String appid; // 公众账号ID
private String mch_id; // 商户号
private String device_info; // 设备号
private String nonce_str; // 随机字符串
private String sign; // 签名
private String result_code; // 业务结果
private String err_code; // 错误代码
private String err_code_des; // 错误代码描述
private String trade_type; // 交易类型
private String prepay_id; // 预支付交易会话标识
private String code_url; // 二维码链接
public String getReturn_code() {
return return_code;
}
public void setReturn_code(String return_code) {
this.return_code = return_code;
}
public String getReturn_msg() {
return return_msg;
}
public void setReturn_msg(String return_msg) {
this.return_msg = return_msg;
}
public String getAppid() {
return appid;
}
public void setAppid(String appid) {
this.appid = appid;
}
public String getMch_id() {
return mch_id;
}
public void setMch_id(String mch_id) {
this.mch_id = mch_id;
}
public String getDevice_info() {
return device_info;
}
public void setDevice_info(String device_info) {
this.device_info = device_info;
}
public String getNonce_str() {
return nonce_str;
}
public void setNonce_str(String nonce_str) {
this.nonce_str = nonce_str;
}
public String getSign() {
return sign;
}
public void setSign(String sign) {
this.sign = sign;
}
public String getResult_code() {
return result_code;
}
public void setResult_code(String result_code) {
this.result_code = result_code;
}
public String getErr_code() {
return err_code;
}
public void setErr_code(String err_code) {
this.err_code = err_code;
}
public String getErr_code_des() {
return err_code_des;
}
public void setErr_code_des(String err_code_des) {
this.err_code_des = err_code_des;
}
public String getTrade_type() {
return trade_type;
}
public void setTrade_type(String trade_type) {
this.trade_type = trade_type;
}
public String getPrepay_id() {
return prepay_id;
}
public void setPrepay_id(String prepay_id) {
this.prepay_id = prepay_id;
}
public String getCode_url() {
return code_url;
}
public void setCode_url(String code_url) {
this.code_url = code_url;
}
@Override
public String toString() {
return "OrderReturn [return_code=" + return_code + ", return_msg="
+ return_msg + ", appid=" + appid + ", mch_id=" + mch_id
+ ", device_info=" + device_info + ", nonce_str=" + nonce_str
+ ", sign=" + sign + ", result_code=" + result_code
+ ", err_code=" + err_code + ", err_code_des=" + err_code_des
+ ", trade_type=" + trade_type + ", prepay_id=" + prepay_id
+ ", code_url=" + code_url + "]";
}
}
