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@Overridepublic Map<String, String> queryPayStatus(String orderNo) {try {Map m = new HashMap();m.put("appid", WxConstantProperties.APP_ID);m.put("mch_id", WxConstantProperties.MCH_ID);m.put("out_trade_no", orderNo);m.put("nonce_str", WXPayUtil.generateNonceStr()); HttpClient client = new HttpClient("https://api.mch.weixin.qq.com/pay/orderquery");client.setXmlParam(WXPayUtil.generateSignedXml(m, WxConstantProperties.PARTNER_KEY));client.setHttps(true);client.post();String xmlResponse = client.getContent();return WXPayUtil.xmlToMap(xmlResponse);} catch (Exception e) {e.printStackTrace();}return null;}">