微信支付03

接上一文 通知 、我们接下来是实现微信支付的 订单查询接口，在文档中是这样的

我们需要传 接口类型、商户号、商户订单号或平台订单号、随机字符串、签名、者五个参数，一下是demo的示例

  protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        req.setCharacterEncoding("utf-8");
        resp.setCharacterEncoding("utf-8");
        SortedMap<String,String> map = XmlUtils.getParameterMap(req);   //这里只TreeMap(); 如果没有用request传参的话可以new一个TreeMap()就可以了。
        System.out.println(XmlUtils.toXml(map));
        map.put("mch_id", SwiftpassConfig.mch_id);
        String key = SwiftpassConfig.key;
        String res = null;
        String reqUrl = SwiftpassConfig.req_url;
        map.put("nonce_str", String.valueOf(new Date().getTime()));
        Map<String,String> params = SignUtils.paraFilter(map);
        StringBuilder buf = new StringBuilder((params.size() +1) * 10);
        SignUtils.buildPayParams(buf,params,false);
        String preStr = buf.toString();
        String sign = MD5.sign(preStr, "&key=" + key, "utf-8");
        map.put("sign", sign);
        
        System.out.println("reqUrl:" + reqUrl);
        
        CloseableHttpResponse response = null;
        CloseableHttpClient client = null;
        try {
            HttpPost httpPost = new HttpPost(reqUrl);
            StringEntity entityParams = new StringEntity(XmlUtils.parseXML(map),"utf-8");
            httpPost.setEntity(entityParams);
            httpPost.setHeader("Content-Type", "text/xml;charset=ISO-8859-1");
            client = HttpClients.createDefault();
            response = client.execute(httpPost);
            if(response != null && response.getEntity() != null){
                Map<String,String> resultMap = XmlUtils.toMap(EntityUtils.toByteArray(response.getEntity()), "utf-8");
                res = XmlUtils.toXml(resultMap);
                System.out.println("请求结果：" + res);
                
                if(resultMap.containsKey("sign") && !SignUtils.checkParam(resultMap, key)){
                    res = "验证签名不通过";
                }
            }else{
                res = "操作失败!";
            }
        } catch (Exception e) {
            e.printStackTrace();
            res = "操作失败";
        } finally {
            if(response != null){
                response.close();
            }
            if(client != null){
                client.close();
            }
        }
        if(res.startsWith("<")){
            resp.setHeader("Content-type", "text/xml;charset=UTF-8");
        }else{
            resp.setHeader("Content-type", "text/html;charset=UTF-8");
        }
        resp.getWriter().write(res);
    }

在demo中大多数参数都是封装在了request中了、所以我们在本地需要这样

public Pair<Boolean, Map<String, String>> queryACcountOrderInfo(Payparams params) throws Exception {
        boolean result = false;
        String merId = params.getMerId();
        String orderId = params.getOrderId();
        HashMap<String, String> rspData = new HashMap<String,String>();
        Map<String,String> resultMap = new HashMap<String, String>();
        //组织请求报文-------------------------------
 
        SortedMap<String,String> map = new TreeMap<String, String>();
        map.put("service", "unified.trade.query"); //接口类型、必传
        map.put("version", "2.0");
        map.put("charset", "UTF-8");
        map.put("sign_type", "MD5");
        map.put("body", "测试购买商品");
        map.put("attach", "附加信息");
        logger.info(XmlUtils.toXml(map));
        String key = "***";
        String res = null;
        String reqUrl = "https://pay.swiftpass.cn/pay/gateway";
        map.put("mch_id", merId); // 商户号
        map.put("out_trade_no", orderId);  //订单号
        map.put("transaction_id", ""); //平台订单号 -- 流水号
        map.put("nonce_str", String.valueOf(new Date().getTime()));
        
        Map<String,String> params2 = SignUtils.paraFilter(map);
        StringBuilder buf = new StringBuilder((params2.size() +1) * 10);
        SignUtils.buildPayParams(buf,params2,false);
        String preStr = buf.toString();
        String sign = MD5.sign(preStr, "&key=" + key, "utf-8");
        map.put("sign", sign);
        
        System.out.println("reqUrl:" + reqUrl);
        
        CloseableHttpResponse response = null;
        CloseableHttpClient client = null;
        try {
            HttpPost httpPost = new HttpPost(reqUrl);
            StringEntity entityParams = new StringEntity(XmlUtils.parseXML(map),"utf-8");
            httpPost.setEntity(entityParams);
            httpPost.setHeader("Content-Type", "text/xml;charset=ISO-8859-1");
            client = HttpClients.createDefault();
            response = client.execute(httpPost);
            if(response != null && response.getEntity() != null){
                resultMap = XmlUtils.toMap(EntityUtils.toByteArray(response.getEntity()), "utf-8");
                res = XmlUtils.toXml(resultMap);
               logger.info("请求结果：" + res);
                
                if(resultMap.containsKey("sign") && !SignUtils.checkParam(resultMap, key)){
                    res = "验证签名不通过";
                    logger.error("验证签名不通过");
                }
            }else{
                res = "操作失败!";
                logger.error("操作失败!");
            }
        } catch (Exception e) {
            e.printStackTrace();
            res = "操作失败";
            logger.error("操作失败!" + e.getMessage());
        } finally {
            if(response != null){
                response.close();
            }
            if(client != null){
                client.close();
            }
        }
          
        //转换成json对象
        JSONObject respJson = JSONObject.fromObject(resultMap);
        String resultStr = respJson.toString();
        logger.info("strRspJsonStr:"+resultStr);
        
        Assert.notNull(respJson.get("trade_state"), "微信查询返回码为空，查询失败！！！");
        String respCode = respJson.getString("trade_state");
        Assert.notNull(respJson.get("status"), "微信查询返回码为空，查询失败！！！");
        String resultCode = respJson.getString("status");
        
        PayRes payRes = PayReturnCode.getPayRes(Contents.ZFB_CODE, respCode);
        logger.info("查询结果，返回码：" + respCode + "， 查询信息：" + payRes.getMsg());
        
        if("SUCCESS".equals(respCode) && "0".equals(resultCode)){
            rspData.put("respCode", "05");
        }else{
            rspData.put("respCode", "?");
        }
            //日期格式化
        String payTime  = null;  
        if( respJson.getString("time_end") != null){
            String date = respJson.getString("time_end").toString();
            String reg = "(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})";
            payTime = date.replaceAll(reg, "$1-$2-$3 $4:$5:$6");
        }
        
        
        rspData.put("queryId", respJson.getString("transaction_id"));        // 平台流水号，类似检索参考号
        rspData.put("merOrderId", respJson.getString("out_trade_no"));// 商户订单号
        rspData.put("txnAmt", Double.toString((Double.parseDouble(respJson.getString("total_fee"))/100)));    // 支付总金额
        rspData.put("txnTime", payTime);        // 支付时间，格式yyyy-MM-dd HH:mm:ss
        return new Pair<Boolean, Map<String,String>>(result, rspData);
    }

如上所示、就是我们组装的查询微信支付订单信信息。我们只需要获取到这些数据后进行处理就可以了。